A complete copy of the datasheet example schematic of the. from Big Clive
A DI ADA for reminding me that these things exist because sadly I've come across these in the past. They've been around a very, very long time. It's obviously a lucrative industry making. from Big Clive
A milliamp hour times say 3.6 volts for the lithium cell inside. from Big Clive
A Phillips bit in a screwdriver sent me by Phillip. That's nice. from Big Clive
Actually bridge one of the greener yet yellows down to the negative rail and that basically enables it because up to that point it draws virtually no current, well, no current measurable current. from Big Clive
Ah yes, eBay yields the goodies once again. And this time. from Big Clive
All flashing at once, which is ohh no and ramping. I think that's the old patterns thing. Ohh it is yeah. Hmm. from Big Clive
All the connections seem good, it's just not doing anything. Well. It is actually getting slightly warm, but nothing really radical. And if I bridge these two connections here? from Big Clive
All the merits, just part of a soldering station. from Big Clive
Also notable that it looks a bit mashed down here because when I first opened it up this wire was right across here and it had been mashed during manufacture so. from Big Clive
Also, it's a big splash of solder across some pins here. from Big Clive
Although, having said that, when you let go of the button, it's not really going to do that, is it? from Big Clive
Am I right here? No, actually I'm talking crap. The fuse is actually in the live. This is good. from Big Clive
An S. 8. from Big Clive
An unexpected communication that did answer that question I had how did does it monitor that? How does it? from Big Clive
And 2nd Array primary of the two high voltage Transformers. from Big Clive
And also communication via 22 pins. from Big Clive
And and it when it drives this transistor it doesn't just drive the relay, but it also drives that red LED. from Big Clive
And another thing you could do, the black lead that goes out for the touch sensor. You could put a resistor, another resistor or another capacitor in series of that. from Big Clive
And any LEDs, and yes, there's an LED above and below, so you'd expect some LED activity. We'll tell you what. from Big Clive
And as it is the secretary it, I don't think it has a I don't think it covers the full sound wave. It's the lamp is never really going to reach full intensity, I don't think, not sure about that. from Big Clive
And current can flow through a MOSFET. Now direction. The issue is that diode. from Big Clive
And each processor is powered by its own voltage directly to from its own battery. from Big Clive
And here I was out by three decimal places. So sadly, this power bank will not actually run your top of the range Tesla for a year without charging. from Big Clive
And here's the odd thing. There is a pull down resistor to make sure these Mosfets stay off. from Big Clive
And I also to send a signal over to that to its switch input, to tell it to wake up and actually turn the sort of battery level indicator lights on. Let's bring in the schematic. from Big Clive
And I focus it to a more appropriate position. from Big Clive
And I think I'm going to try and depot this. from Big Clive
And I've found it. So let's see how easy this is to open without bursting, because will it be glued to shut? That would be annoying. from Big Clive
And if I plug in this little air tester here. We can test its output capacity from port. from Big Clive
And if I pop the cover off. from Big Clive
And if I take this out, because it was originally potted in with a sort of silicone rubber, where is it going to come out now? It is a fairly tight fit. from Big Clive
And if the voltage across this cell reaches the upper threshold, it could be just above 4.2 volts. This MOSFET will turn on and it will effectively shunt this resistor across that lithium cell. from Big Clive
And if there's current flowing through the circuit, say the trickle charge at the end of charge, it wouldn't deal with amps, it would only deal with typically less than 60 milliamps. But if. from Big Clive
And if you consider if you had a load connected to here supporting you had a lamp. Oh, that's very old fashioned. from Big Clive
And it also creates an absolutely minute trace level of ozone that helps freshen the air. from Big Clive
And it monitors the voltage across the cell of the 471 resistor and capacitor to provide filtering so it gets a nice stable reference voltage. from Big Clive
And it provides a thermal barrier. Because this little chip here does give off a bit of heat while it's charging, it acts as a variable resistor. from Big Clive
And it then goes to the circuitry, which is just gibberish. It's nonsensical before it goes out to the ion module and unfortunately. from Big Clive
And it's a very classic. It's got a. from Big Clive
And it's associated with resistor and this one for the timing which will change the sort of intensities. from Big Clive
And it's got the little tiny relay that they normally have. Let's get this out. If we can get it out, the whole hot comes out. That's pretty good. from Big Clive
And it's notable that it deviates from their specifications again. from Big Clive
And its application notes suggests that it could be used as part of push pull arrangement. from Big Clive
And maybe brighten the image up because it is just a bit. from Big Clive
And no continuity in that one. It's not doing anything right. Tell you what. from Big Clive
And now I'm gonna stick. This. from Big Clive
And one is sparking. You're probably not going to see that yet. Uh, you touch the other one and the other one sparks, right. Tell you what, I'm going to turn the light off. One moment, please. from Big Clive
And pins are two and three are for the crystal, which is probably 32.768 kilohertz. from Big Clive
And resume, here is the circuitry. from Big Clive
And so here's the bizarre thing. They've got the case, they. from Big Clive
And take this apart, because that's going to see. I can already see looking into it. I mean, let's take a closer look just through the shell. from Big Clive
And that can be quite a lot of heat if the charge voltage is high and the. from Big Clive
And that goes negative to light that led. It will also light that led, but that's. from Big Clive
And that is basically how to turn garbage. from Big Clive
And that is it. It's quite a good result, I'd say. from Big Clive
And that is it. So there we go. I do have another tool on order a faulty 1, which is good. And so once it arrives it's the 20 Volt tool. from Big Clive
And that is it. There is nothing more to say. from Big Clive
And that is more or less it, so I'm going to. from Big Clive
And that provides power to the chip. It's very low current. It's interesting to note that that. from Big Clive
And that their life is definitely live, because otherwise it may not work. from Big Clive
And that was fairly easy to open and I think you will agree, let's pop that. Well, let's not pop that out. Let's put some isopropyl alcohol in. from Big Clive
And that's between the two ports. So don't go plug in one AMP devices into each one, otherwise it will be sad. from Big Clive
And that's not bad. It's holding 5 volts at 1 amp as we go to 1.5 amp. from Big Clive
And that's not what's in this, though. And but it is along the same lines. from Big Clive
And that's what happens. The gate of the MOSFET is normally pulled to the 0 Volt rail with this fairly high value resistor. from Big Clive
And the circuit board in output, where is it? It's somewhere here. It's quite nice. It's got 2. from Big Clive
And the circuit board seems to have quite a few components on it, though it's got a very odd layout. from Big Clive
And the high number of beeps there meant that it was out of compliance because when you plug in a lab that you've programmed it for like this little one here. from Big Clive
And the joints have been reflowed. Some tests have been done. from Big Clive
And the little chip, the little module is ESP. from Big Clive
And the negative goes straight to the driver. from Big Clive
And the negative is connected to the end of the lithium cells via 2 Mosfets. This is a very common arrangement. from Big Clive
And the negative is that the other side? from Big Clive
And the other two are wired across it so that by swapping the polarity, it can actually light individualities. Technically speaking, that means if this one's positive. from Big Clive
And the solar cell also has its resistor 2K and an LED just to say I am charging. Well, there is light in the vicinity. It means nothing really because it's such a tiny solar panel. from Big Clive
And the switch here. This is a switch which links across. from Big Clive
And then it just goes in parallel to the speaker connectors, your output probes, your little socket and then all the lamp holders. from Big Clive
And then looking through a suitable magnifying device. from Big Clive
And then the other connector is just connected to the other ones directly. There's no high voltage structure in there all. Is it actually even connected to anything? from Big Clive
And then we've got the control circuitry here. One other thing worth worth noting is this. from Big Clive
And then, bizarrely, just one connection. from Big Clive
And there is the little switch contact here. from Big Clive
And there is what appears to be a reset circuitry circuit here, which is useful to know because this may well way of rebooting the pack which goes to pin 4. from Big Clive
And there's a 2 megohm resistor just designed to discharge any residual charge in this capacitor. from Big Clive
And there's a decoupling capacitor of roughly 100 nanofarad emerged in circuits that's not guaranteed across the two pins of microcontroller. And this is a classic pick 12 pinout. from Big Clive
And there's also this resistor here which limits the current and the feedback circuit and the little 2.2 nanofarad capacitor. from Big Clive
And there's definitely no ionization going on. Not unless you touch it, in which case it's you who will be ionised. from Big Clive
And there's one of these across each cell. from Big Clive
And there's the button that is signalling to the microcontroller, so you can click it to actually wake the unit up or go into the various LED modes. from Big Clive
And they've gone to the effort of soldering them onto the circuit board and the wires. They've got this circuit board made with all these useless components. from Big Clive
And this is the secondary. And in doing that it would start this, it would start oscillating. from Big Clive
And this resistor isn't really worth changing. This is the one that used to get the reference so it knows where the start of the sine wave is. Let me bring in the schematic. from Big Clive
And this thing is used for testing lamps. Let me demonstrate you turn the power on. from Big Clive
And to avoid epileptic things, I'll do it with the lights on, so off. from Big Clive
And try and roughly align that chip above that gap. So there's a bit of. from Big Clive
And uh, yeah, it's a nice enough case. from Big Clive
And uh. When it did that, it would step the voltage up and then charge this capacitor with respect to ground. But there is no direct ground connection until you push one of those buttons. from Big Clive
And um, yeah, perplexing. So perplexing. And. from Big Clive
And using it to probably buffering it up with this trip here. I would guess I'll double check with that and see if I can find any information on it. from Big Clive
And we'll stick it on a meter and we'll plug it in and we'll see if we get voltage across the output here. One moment, please. from Big Clive
And we're going to sort of the negative connection of the battery pack on 1st Curly here. from Big Clive
And we've basically a standard feedback that orange indicates one transformer, that's the little transformer. from Big Clive
And we've got the spot welded tab. from Big Clive
And well, it works. from Big Clive
And when it gets even lower, it will go below this, you know, voltage, and then it will just be the lowest one, and that will show you that it's time to recharge the battery pack. from Big Clive
And when it turns it on, it just brings the LEDs on and goes through its modes. from Big Clive
And when you turn on the light, it actually puts power out to actually power the LEDs directly, but it also. from Big Clive
And will probe about and see are we getting. from Big Clive
And you can just shove lamps in. from Big Clive
And you see the larger protection circuits are the balancing circuits. It's basically the same circuit, just repeated over and over again all the cells in. from Big Clive
And. Because I it it's the other way round from the picture I showed you the positive. from Big Clive
Anything else here, that is it. You could play around with these values. You could play around with that value. from Big Clive
Anyway, here is the reverse engineering of the unit. That is the back of the circuit board flip. from Big Clive
Are these little screw holes? See if we can pop the plugs. Oh, it's got a compass, by the way, just in case. Because, you know, eat your heart out. Google Maps. from Big Clive
Around that it's gonna restrict that a bit, but if the chip gets too hot it will self regulate. from Big Clive
As as does the power and then output goes to the LED's via that resistor. And here is the truth table of a very similar classic H bridge. from Big Clive
As well as China, they might allow such things, but uh, it's definitely. from Big Clive
At an example of this and why it may appear to keep charging but doesn't keep charging and I shall zoom down a bit more on this. from Big Clive
At one moment please. from Big Clive
Ate 2. from Big Clive
Average warm white OK, watch your eyes. The light is coming back. from Big Clive
B2B P/E KH but on the other chip, the slave chip, it's B2B7 ekht and that makes me think, well those didn't come up in a search so I'm guessing that those are. from Big Clive
Balancing circuits to actually control that it would with that lower currency a cap of. from Big Clive
Batteries are low, so I'm going to. from Big Clive
Be some sort of step up circuit if it was low voltage and it is a step up circuit for low voltage. from Big Clive
Because effectively, as soon as it reaches the full charge, it cuts power to the cells so that. from Big Clive
Because I've resolved these bars if I connected this across 3 volts. from Big Clive
Because technically speaking, when you apply a positive signal to activate this MOSFET and measure the voltage say across the first cell. from Big Clive
Because they look like they're detachable. Are they trim or are they part of the thing that holds it together? from Big Clive
Because ultimately in most applications it's treated as just one battery. SO1 thermistor would have done. from Big Clive
Below 3 volts, about say about 2.5 is the cut off point for the DW1. It uses this MOSFET package to switch the output off. from Big Clive
Better. Yeah, but that is it. It is a. from Big Clive
Big Clive - Gangnam Style from Big Clive
Blue, grey, orange, 68368 thousand ohms. from Big Clive
Buck regulator chip, there's an inductor, there's the output capacitor for the power supply, and what it's doing is it's measuring the voltage drop across this current shunt. from Big Clive
But anyway, there is. from Big Clive
But as well as being able to alternate between the two thermistors. from Big Clive
But at any time. You can plug in your. from Big Clive
But by basically controlling the two Mosfets, you basically block current flow in either direction. from Big Clive
But by turning this MOSFET off, it will block the discharge. That's why this one is marked as the discharge prevention MOSFET. from Big Clive
But either way, it's a solid 23 package. It's a 6 PIN package, but it only uses 3 pins. from Big Clive
But having said that, it's just, you know, it doesn't look a hugely expensive device. So the answer here is. from Big Clive
But I don't think it would really be compliant with American, European, British or any other regulations maybe in India. from Big Clive
But I'm getting the feeling that the the main brain of this unit which is a little there RF receiver board. from Big Clive
But interesting stuff. So that answers the question. I've looked at these circuits and I've always wondered. from Big Clive
But it could also potentially see a slight jitter on the analog digital converter through this, and it's possible that. from Big Clive
But it would start charging that capacitor up until this sidac. from Big Clive
But it's connected to neutral so it can tell when the side wave has gone. from Big Clive
But it's interesting, the data sheet shit. Well that's wrong. The data sheet for the T6 or 61A. from Big Clive
But it's the fact that the speaker terminals are not compliant. The probes are just ridiculous, but hilarious at the same time. from Big Clive
But pleasingly faken away actually quite enjoyed taking that apart. from Big Clive
But still probably worth experimenting with. from Big Clive
But that is another electronic high voltage eBay special deciphered. from Big Clive
But that is how it works. It does require a bit of intelligence on the charger side or that sneaky resistor which I think would work. from Big Clive
But that is it, a very simple circuit thanks to this chip. from Big Clive
But that is it, so if you need. from Big Clive
But that is it. It's an interesting little circuit and it does seem to work. from Big Clive
But that is it. They're not super duper expensive. from Big Clive
But that is it. Things worthy of note. from Big Clive
But that is more or less it. There's another possibility here. Did you see how it triggered when I touched the wire? You could, theoretically. from Big Clive
But that's good if it doesn't trigger too early in the sine wave, because that results in longer lamp life. from Big Clive
But the main processor here deals with the switching of the thermistors, it doesn't monitor them directly. from Big Clive
But the master one, as well as dealing with the communication backs and forwards, also deals with the two thermistors, which is odd because. from Big Clive
But then it stopped working completely and I've got the hobby here and if I plug it into the hobby. from Big Clive
But then it's only about 90 milliamps at 3.3 volts. It shouldn't be. Maybe I'm just imagining. from Big Clive
But then that would have broken their little accountant's heart, wouldn't it? from Big Clive
But there is a reset network. from Big Clive
But there we go. So. from Big Clive
But there's also this little transformer here that I speculated thinking initially it was 248 before. from Big Clive
But they've got the fuse on what appears to be the neutral. from Big Clive
But they've got the ionizer emitters, which are real ionizer emitters. from Big Clive
But this is it. The job is done. We have our LEDs, our particular exposure off and there you have. from Big Clive
But this is now going on here. from Big Clive
But this one here takes it to new levels of scamming Ness, to the point that they've been so intent on making a scam product that they've actually. from Big Clive
But we have the USB connector here. I shall just write UCSB. I also write XT here because that is the crystal. from Big Clive
But when you're tasked with the probe. from Big Clive
But you could put a resistor in line with this if you wanted extra safety. from Big Clive
But. Every single one will not there, well, they are. Every single one's different. from Big Clive
By opening them up, keeping in mind that to her they are kind of like. from Big Clive
By using A1K resistor in series that led of an opto isolator and it's got one of its pins of internal pull up just pulled straight to the Volt rail by another opto isolator so that each. from Big Clive
Circuitry and having taken out, I did try it and didn't really have much luck, so I think it's time. from Big Clive
Clusters of resistors. There's a chip which appears to be a. from Big Clive
Comes to the rest of the circuitry and there's this. from Big Clive
Coming apart, coming apart. Well, it's kind of come apart. from Big Clive
Composed of five 2500 Milliamp power 18650 cells. from Big Clive
Connections here for the battery, we've got the power the take off wires from the battery pack. from Big Clive
Contains all the processing power. Little Voltage regulation perhaps? from Big Clive
Current setting resistor down here. I really do wish they'd put a round pad here and one here that would let you put a standard through hole. from Big Clive
Custom programmed microcontrollers. from Big Clive
Dahood coming in. Then it's got two current limiting resistors, one in series with each of the cheap gallium phosphide LED's. from Big Clive
Deal with it, and the answer is with one processor reference to the common 0 Volt rail that's used by. Well, that's the common 0 for 20 volts and 40 Volt. from Big Clive
Depending on the this, the polarity is such it depends if this black wire here actually gets connected to live or not. Whichever one ends that track if you had a. from Big Clive
Devices into ferlatte power sources. from Big Clive
Dieded inside. Could be my imagination. That feels quite warm actually. from Big Clive
Disposed. Disposable. from Big Clive
Divided by I've used a 33 ohm resistor. from Big Clive
Do it Electro boom style. Let's see what it really is there. from Big Clive
Does slam them in parallel or just use one section? And I'll also analyze it to see what actually went wrong. from Big Clive
Don't immediately recognize BSL wait. from Big Clive
Double click puts out again. Let's take the screws out. That's nice. It doesn't just clip together or have the screws going to come out. Hold on, what are they? from Big Clive
Either a metal touchpad or. from Big Clive
Excuse me, I'm belching because of just a beer actually, but that's OK. from Big Clive
Feedback this is the primary. Primary. from Big Clive
Fibre emitters were connected directly to that leg and. from Big Clive
Filter circuit for the touch input and this capacitor here is between you and the mains. It's supposed to be 2 capacitors but it is 1 and it is a 3K V 470 picofarad capacitor. from Big Clive
Foam tape. That's an excellent move. from Big Clive
For a 2 Watt radio amplifier. And yet I find the S 8550 in a lot of inverter designs. It just seems to be one of those things that it's found an alternative use. from Big Clive
For the 24 version to see if it just just. from Big Clive
For the output pins and this is where it all gets hideous. The ID is fairly straightforward, it controls a MOSFET that just switches 100 ohm resistor. I'm guessing maybe it just. from Big Clive
From the battery and it's just monitoring one of the battery packs and we have the minus. from Big Clive
Gas burner stove or something like that. from Big Clive
Generic Luxian style 1 Watt or three Watt LEDs, but it's a shame that it's not an aluminum core PCB because. from Big Clive
Give me one moment. I shall grab schematic for this. Not that it's a terribly exciting schematic. Well, it is, say, an exciting schematic in a way. from Big Clive
Gives it a staggering capacity of 32 megawatts. That's fantastic because if we divide that by the biggest battery available in a Tesla vehicle. from Big Clive
God that it didn't take long to describe. It took a long time to reverse engineer. Oh, did it take a long time. I also drew this vertically. Maybe this was a bad idea. from Big Clive
Half a Watt, probably, and that's quite a lot just for the beer LED. It does a fairly large copper tracks in this, but it's not the same as an on an aluminum substrate PCB, however. from Big Clive
Has just one pin connected. It's marked NTC. It's a whole lot more than that. from Big Clive
He's saying waves when it goes from one priority to the other and it passes the 0 Volt line. Two things happen there. from Big Clive
Heat flow, although the heat shrink doesn't really help that much. from Big Clive
Here is my little battery pack and now. from Big Clive
Here is the schematic. I shall zoom down just a tiny bit more just to make that nice and big. from Big Clive
Here it's like hmm. from Big Clive
Here. Um. from Big Clive
Here's a little UK complaint adapter with a fuse. I'll plug this non polarized plug in and this is a device with a nice stitched readout and it beeps and it was described as. from Big Clive
Here's the activate the secretary. It's two LED's. They could have. They've missed a trick here. They could have used one resistor and put 2 LEDs in series. from Big Clive
Here's the. Power Supply Circuit Board, it's got the. from Big Clive
Hmm. B3A. from Big Clive
Hmm. Ohh George Michael. They're a careless whisker sticking out. from Big Clive
Holding this shot. This is so scummy. It's unbelievable. It's like it's good because it's so scummy. from Big Clive
How devious O I'd like to thank Adi. from Big Clive
However, if you. Double click this. from Big Clive
I can show you the close up picture of this site and I'll zoom down on this. from Big Clive
I could have drawn this bigger, but I didn't. It's another high corn chip as far as I can see. What's this one called? This one was called. from Big Clive
I didn't realise how battery technology had advanced and it turns out that this power bank has a capacity of no less than 9. from Big Clive
I didn't really make that connection at first. This was a hand machine, this screwdriver. from Big Clive
I don't know if it just alternates between the two thermistors and then the. from Big Clive
I don't know if it's going to be a capacitive dropper or it's going to be just looking for a screwdriver here. from Big Clive
I shall focus on that. I shall zoom in it. from Big Clive
I shall just Hotwire this with five volts so I cannot operate on it. from Big Clive
I shall unplug because there's little plugs here. from Big Clive
I suppose it's quite useful. It means they don't have to look up if you can basically calibrate it for that and then just stuff lamps in. But here the. from Big Clive
I suppose you could find a path back through the transistor. from Big Clive
I suppose, and this is just a theory, this is just a theory because this is connected directly to the batteries. from Big Clive
I think the crosshead screws. It's not doing it with that. Hold on, where's my other driver? It's hidden somewhere here. Hold on. There it is. Slight avalanche of stuff in the side. from Big Clive
I think they work on the basis that use common sense and if you get a shock you get a shock and if you die, you die and they're just going to have to employ somebody else. from Big Clive
I think we go straight to the notepad now. One moment please. from Big Clive
I thought it was going to be something fancy. It's really not. This is horizontal. Let's zoom up. from Big Clive
I wonder if that's why they've been partly brought out to these pins, because that will let you do a forced reset. from Big Clive
I'll cut straight to the chase here. So zooming this a little bit, maybe not too much, and for those of you with low patience, what I'll say is this. from Big Clive
I'll have to take out the circuit board to see what that is. We've got a side act, a diode, coupler, resistors and a capacitor rated about 680 nanofarad. I think that is. from Big Clive
I'll just draw this in ugly way. So there's a button. from Big Clive
I'm going to reflow these soda joints. from Big Clive
I'm going to see if I can open this and we'll see what's inside. One moment please. from Big Clive
I'm going to tag some wires across that. from Big Clive
I'm going to, I'm going to fold these back the way I think. What's the best way to do this? Yeah, that's I've got to fold those back out the way like that. from Big Clive
I'm I have a feeling that something here has failed. This little receiver module has actually. from Big Clive
I'm not seeing an awful lot going on here. from Big Clive
I'm not sure how you're supposed to use this in this configuration. I would guess that maybe the battery pack if it was intelligent and it was applying the charge voltage to these pads here. from Big Clive
I've divided this into two sections. This is almost. from Big Clive
I've got the cable coming in, the neutral has just popped off. from Big Clive
I've got this circuit board here, but I can show you a close up picture of it. from Big Clive
I've had this open already, I've just had to see what was inside it. from Big Clive
I've just pushed the button. Oh, here we go, here we go. from Big Clive
If that's used, but in this case it's not, this chip may not even have these features. It will possibly be just a cheap, simpler 1. from Big Clive
If the track was on, it will turn off because there's no current flowing through it and it's a latching device, so it turns off at that point. from Big Clive
If the two inputs are low, the outputs go high impedance because this is designed for controlling things like motors and it will let us see a motor freewheel. from Big Clive
If you push the other button, it also enables it, but this time because this is the call that's referenced to the 0 Volt rail. from Big Clive
If you see a case with this logo on it, and it's the generic key power saver insect repelling ionizer case, then there's a good chance that it's going to be fake. from Big Clive
If you turned this MOSFET off, even though it was off, current could still flow through that diode. from Big Clive
If you wanted to change it, you can change the value of this resistor, which is 101.2 K at the moment, 1/2 and two zeros. That's kind of. It's mounted upside down. from Big Clive
If you wanted to force a reset on the processor, supposing the battery packet locked up, you would just bridge over this capacitor with a pair of tweezers. from Big Clive
If you're actually pushing the lamps in, this may be live, or it may be neutral. from Big Clive
In China, in factories, I've seen videos showing the little. from Big Clive
In fact, I'll just stick that on the cells right like that. from Big Clive
In the beginning of the evening, it's going to keep you well, it's going to run into the next day. from Big Clive
Interesting. Am I going to put in a claimancy? I am outraged. I want my money back because it's not 9,000,000 milliamp hour. from Big Clive
Is also using these pins to actually communicate. I'll just. I'll use tweets as a pointer. Maybe the. from Big Clive
Is available online. You can find that in Google. from Big Clive
Is dad so? from Big Clive
Is here the output positive, so I'm going to just flow this connector on here. from Big Clive
Is it so theoretically now when I plug in my USB charge lead? from Big Clive
Is labeled 0 Volt here. That's because all the circuitry's reference to live. That's for two reasons. from Big Clive
Is partly to protect the cells underneath. from Big Clive
Is that 470? Let me just grab that. Yes it is. I've double checked 47, one, 474, seven and one, zero and the triac, which is a MAC97A6. from Big Clive
Is the myth busted on the TPP 4056? from Big Clive
Is the negative to negative because that does defeat the protection. from Big Clive
Is the solar panel actually connect? I think it is because the LED lights up that's, you know, a sure sign that solar panel is connected. from Big Clive
Is there something I've missed here or is it glued in or something? from Big Clive
It brings the little red led on and the relay but everything is dead. The green LED, but presume it's green is controlled from this when it when it boots up. from Big Clive
It can also enable this, which has a 750K resistor. from Big Clive
It does every couple of beeps and it shows you it's 1.75 watts. If you press the button briefly it shows the mains voltage which is currently 246 volts. Not sure how accurate that is. from Big Clive
It does help to have a screw. That's nice. I don't know why they added compass. I suppose it's because you know when you. from Big Clive
It has a 10K resistor pulling it to the 0 Volt rail live to keep it turned off. from Big Clive
It has a little decoupling circuit for its power supply. It's 10 ohms and I measured this in circuit, which means nothing really. You can't really measure capacitors easily in the circuit. from Big Clive
It has brightened up. Quirky. from Big Clive
It is reassuring that some power is being drawn. from Big Clive
It is showing its charging with a red LED and when it's charged that should go blue. from Big Clive
It is stuck to the battery. Hold on. from Big Clive
It kind of suggests that you can use this power bank to power. from Big Clive
It leads with another black wire community and the two high voltage connectors. The listing did show what was inside, which is good. from Big Clive
It measured about 5 microfarad, so let's just guess it's 4.7 microfarad with tolerance. from Big Clive
It produces a cloud of fog when you inhale on it and. from Big Clive
It shows a power of 7 watts. There is something active in there. from Big Clive
It then completes the circuit through for this the train. The feedback circuit can then actually find a path through the primary. Let's call this primary because that's what it is. from Big Clive
It too. Hold on, what was that? from Big Clive
It turns out that actual capacity equivalent for 9 milliamp power Power bank would be 32 kilowatt hours. So it's actually a third of the capacity of the top of the range. from Big Clive
It was a valid suggestion. from Big Clive
It was helped greatly by the complete lack of components inside because it is just a circuit board with two strips. from Big Clive
It will depend. On the base, it doesn't matter. On parallel it will. from Big Clive
It would be dumping not a current through that switch at the time, and it could actually start finding a pass back through a transistor. from Big Clive
It would be nice if you could unplug it and it would store the last setting and non volatile memory. That does not happen sadly, it just instantly forgets the pattern it had. So if I plug these in. from Big Clive
It's a natural outdoor element. What should happens when I put this on the live pin though, and I touch the carbon bristles here. from Big Clive
It's a treat, especial as I've would say it is something very special indeed, so I'll get straight to the point here. I'll plug this in. from Big Clive
It's also got a solar panel to help with the charging. from Big Clive
It's an interesting circuit, but as I say. from Big Clive
It's another mystery high voltage item from eBay, and as often with these devices, there's just no information I initially thought it was going to be. from Big Clive
It's got fruity flavours and when you're finished with it, a lot of people just throw it in the ground because that's the sort of thing that you used to do with their previous version of this. from Big Clive
It's got the incoming supply. I can see very direct far down there. from Big Clive
It's I've been told it's a drill. from Big Clive
It's in the vicinity of the voltage regulator each time. from Big Clive
It's it's not gonna brighten up. One moment, please. from Big Clive
It's only about 50 milliamps, so that should run for about, oh, a day. from Big Clive
It's optional. It's up to you, but I just these modules are very, very cheap. It's more expensive buying one than it is buying 10. Ultimately, there's very little price difference. from Big Clive
It's output is rated 1 amp per well, either 2 amps total or 1 amp per port. Let's put that to the test, shall we? from Big Clive
It's quite a versatile system. These lights, incidentally, came from Asda. from Big Clive
It's rated internal current limiting for charging lithium cell is 700 milliamps and I got about 600 milliamps or so, so that tallies up with that. from Big Clive
It's really ESP 8/2. from Big Clive
It's the one that will spark when you see it like this, it's very very simple. from Big Clive
It's very nice, very chunky and heavy. from Big Clive
Just all flashing horrible, alternating backwards and forwards. from Big Clive
Just by holding that button down. For oodles of time. So let's say I hold it down for a good length of time, but I would have expected to see LED's flashing and blinking. from Big Clive
Just this one. It wouldn't have been enough voltage to make this one light up. It wouldn't exceed the Zener diode voltage. from Big Clive
Just to act as extra insulation between you and that. from Big Clive
Keep in mind as soon as you're connected. The other connection that is very hot, that is a plated through hole. from Big Clive
Kilohertz. Because it's a very common timing crystal, the two outputs go to the H bridge. from Big Clive
L 008 B 3A battery balancing 3A I'm not really sure. from Big Clive
LED quick test light box voltage power tester for E27B22 E 14 lamp bulb with buzzer. It does have a buzzer. You can hear the buzzer going beep. from Big Clive
LED's with that suitable resistor in line. I'm repeating saying that because if you don't have it in line it would nuclear LED's. from Big Clive
Let me just actually tell you if that's a serial memory trip or not by taming this back for a start. from Big Clive
Let me just grab this is their secondary supply. I don't think there is. It's just going to be 5 volts a lot. from Big Clive
Let me show you this schematic. It's not that exciting. It's a very simple circuit. from Big Clive
Let me take a look at this again. This is the other side. Anything special? from Big Clive
Let's bridge the little switch. Well, let's actually, you know, let's force a complete Nutter reset. from Big Clive
Let's get the circuit board out and I'll put this battery in test and see what the capacity is. I have a feeling it's going to fall short of nine million million power. Also weigh this bitter metal. from Big Clive
Let's open it up. It needs a California warning sticker. from Big Clive
Let's open it up. So there's a single screw at the bottom. from Big Clive
Let's take a look at one of the many touch switch controllers on eBay. And to be honest, I don't recommend buying them from eBay because, well, there are no standards on eBay. You get random stuff. from Big Clive
Let's take a look at the ALDI Ferax dual voltage 20 Volt 40 Volt lithium Power Pack for power tools and this. from Big Clive
Like full 24 hour day on a full charge of this, which means that if you charged it. from Big Clive
Live if you have one of these and it's not working very well, check that the polarity of your wiring is correct. from Big Clive
Logical, because they do tend to display a bar graph and that's how they've done it. from Big Clive
Loosen up these carbon fiber emitters, which are real carbon fiber emitters with real wires connected to a real ionizer like module. So they've gone to that extent. I thought maybe. from Big Clive
Lots more heat dissipation when you run them in the higher voltage. from Big Clive
Lots of sparking from where? Actually holding these on? Am I going to get a shock at some point? Probably. from Big Clive
M25QO8A for the memory each device. from Big Clive
M4558D opamp but this is not a normal configuration just to try the pin scale like this. I have drawn the circuit diagram out. from Big Clive
Made anyway if you want to play safe. from Big Clive
Made so much worse that as part of their elaborate scam to make things look connected, they have actually connected. from Big Clive
Make sure everything is safe and away from anything, and then I'm going to plug this in, making sure double checking everything's clear. Plug it in. from Big Clive
Mama Papa type lamp shops where someone's just started up their own company. from Big Clive
Maybe a safer option. It's probably worth experimenting with that. from Big Clive
Maybe they've just hot melt glue these wires and filled it with resin, because that is a common enough thing. Let's say I get this out of the way. from Big Clive
Measure the power and if it is within the rated power range it will make a double beep. from Big Clive
Medium high off, low, medium high. I'm not sure that is full brightness, but. from Big Clive
Metal case light fitting that isn't grounded. It can't be grounded. It needs to use it as the antenna to pick the signal up. from Big Clive
Million milliamp hour and to put that into perspective. from Big Clive
Next thing, let's get the iron module out. This is going to have to crack out here. from Big Clive
Nine million million power cell, the listing shows. from Big Clive
No it's not. It is not glued shut. This is good. It is at the other end. It's got hot melt glue, string relief on the wires. from Big Clive
Not great. Suggests that maybe was a slight issue with the control circuitry module, because that is a perfectly acceptable voltage. from Big Clive
Not really. There's other regulator. I think we'll just cut straight to the schematic. from Big Clive
Not sure that is. from Big Clive
Not that that's really going to stop operating. from Big Clive
Not the probes. I mean the probes are it. It doesn't matter. You can put your fingers in these because you can poke your fingers in lamp holders anyway. from Big Clive
Nothing is happening on here. We'll tell you what. from Big Clive
Noting that because it's not polarized. from Big Clive
Now we've got that out of the way, let's. from Big Clive
Oddly, this one comes with a California proposition 65 warning on it. from Big Clive
Of a feeling and what's inside because someone reminded me that these exist. Let's just try. Let's try and get this potty on, let's say. from Big Clive
Oh my God. Continuity from the live pin directly to these conductive carbon bristles. And it's like, what? from Big Clive
Oh, that is so tight. Oh, that's just terrible, right? Tell you what, I'm going to turn it off for a start. from Big Clive
Oh, that'll do. from Big Clive
Oh, we're actually getting bored. That's interesting to know. from Big Clive
Ohh is it stuck to the battery? from Big Clive
Ohh sure to detect would it detect the upper voltage because there will not be a can sync using this. from Big Clive
Ohh, the screws are all dropping out everywhere. That's quite good. from Big Clive
Ohh. from Big Clive
Ohh. from Big Clive
Ohh. Maybe they're not little plugs. They may just be little circuit board headers. Do these not unplug? I don't think they do. Maybe they do. Hold on. from Big Clive
Ohh. Things are popping off. from Big Clive
Ohh. Yeah, that's true. Into pieces. from Big Clive
OK, then you just popped off. That's OK. I think it came from down there. Uh, but live is looks as though it's going out via the shunt here, let's zoom down this. from Big Clive
OK. from Big Clive
On each of those components. There's one and there's one. from Big Clive
On this capacitor, until the SIDAC operates. Now there is a path because you're holding that button and basically selecting that coil. from Big Clive
One moment please. from Big Clive
Oop is it even? It does loose connect to that 21218. from Big Clive
Or if it is a switch mode, will it be the classic capacitor? Will there be a bulging capacitor inside? We'll find out once I've opened it. from Big Clive
Or it might have been some transient finding its way through the power supply, although it does look isolated. from Big Clive
Or this capacitor appeared tweezers, but keeping in mind that is actually on top of the circuit board. from Big Clive
Or zebra if you prefer. from Big Clive
Other than just to casually slip in, just how hellish that was to reverse engineer, but very interesting nonetheless. from Big Clive
Other than that, the other things worth of note are the four LEDs are multiplexed. from Big Clive
Other than that, uh, quite a fun thing to take to bits. from Big Clive
Our new press that button and it pulls it to the 0 Volt rail. It turns on the well, it makes the powerbank up and it also turns on the light if you double click it or long press it. from Big Clive
Out of feeling. It may be treating it as two separate batteries, but the opto isolators were. from Big Clive
Past the zero crossing point, that's when it changes priority and is effectively at the start of each half. from Big Clive
Per factor .3 typical 8 milliamps. from Big Clive
Physically. Well in this case of this for the feedback you have to physically. from Big Clive
Pins are almost compliant. That earth pin is just normal pin size. It should actually be a bit bigger, but it still goes into a circle OK. from Big Clive
Plug it and let's put it to the first really annoying. Well, let's do a really annoying Blinky right? We'll do that. from Big Clive
Plug it in. It is kind of remembering that, but it will forget reset to zero if it's left unplugged for a length of time. from Big Clive
Pop the solder down on right now and I shall whip that transistor out and we'll see what that little transistor is in there. Is this capacitor discharge? from Big Clive
Potentially go quite high and then the DW one will cut off its protects against overcurrent as well. It's a very versatile arrangement. This module is perfect for this. from Big Clive
Potted the circuit board. They could have bought a potted module from the many specialists in China who sell them. from Big Clive
Probably spent as much making the scam product as they could make in the real one. from Big Clive
Probably written it 21 volts. I have written it. As long as it doesn't go much above that, even with a slight selling balance, you're not going to get anything dramatically overcharging. from Big Clive
Processor in the tool itself. The power tool actually detects those two levels and all it's looking for is 1 because this will form potential divider the 10K thermistor. from Big Clive
Processors it's own opto isolator for controlling the opto isolator that led and also receiving the data back through the phototransistor. from Big Clive
Pulled him off briefly just to check the status of the button, but this is being used differently. from Big Clive
Put a metal pad in the back of a plastic housing and then touch the front of it. It might actually detect the capacitance through the plastic onto your fingers. from Big Clive
Put the other bit down here. I'm going to leave a little gap underneath. from Big Clive
Quick excited to see this radical cell. Obviously it's not 9,000,000 milliamp power. That is just ridiculous. from Big Clive
Quite handy in the right environment. from Big Clive
Quite strange, but I guess ultimately there must be a proven circuit, so it must be OK. from Big Clive
Right, lot of screws. Maybe I should have taken some out for and or even pause, but I didn't love the construction gives me. from Big Clive
Right. from Big Clive
Right. So that is our cell. from Big Clive
Right. The latest coming back. Watch your eyes. It's time to see the schematic. from Big Clive
Roughly. There ohh look, I've stuck the chip ray over the thermal tape that. from Big Clive
Run. Hold on, let's see if I can get a good connection here. Maybe it's not connected to anything in there. from Big Clive
Sadly it's a feel I'm getting 3.3 volts to the little module here. from Big Clive
Safely, and then we'll measure some voltages on here. One moment, please, while I set that up. from Big Clive
Screwdriver knowledge. Use a different one. Let's use this screwdriver. from Big Clive
Sends data through that, not sure. from Big Clive
Separation of our control signal feedback with these wires, or it may. from Big Clive
Sleep the whole lot up and that is theoretically going to be it. from Big Clive
Slowly ramping up slightly pointless old crossfading barbs and furs, I'd guess. from Big Clive
So each processor has a 5 Volt regulator and EFF 50B that connects to the. from Big Clive
So for controlling the charge of this, I'm going to use a very standard module from eBay called a TPP 4056 module, allowing me to show you a much larger image of this. from Big Clive
So here is a little parameter. It's Aurora Dang parameter. L zoom down this so you can see. from Big Clive
So here's the power supply. Note that live. from Big Clive
So here's what I'm going to do. I'm going to soda the batch across these two terminals. I'm going to solder the output to the LEDs across the two outer terminals. from Big Clive
So I could show you this is surface mount in the back. It's got some physical components in the front. One moment please. I'm just going to get the this photographed and then we can continue. from Big Clive
So I have now flowed soders onto those connections. from Big Clive
So I shall zoom down in this. from Big Clive
So I'm getting the 3.3 Volt to the processor. Everything's there that should be making it work. from Big Clive
So I've got this just flush with the end so that I can still plug the USB lead in and I'm going to use a hot air gun. from Big Clive
So if I zoom down this. This is the USB connector. Come in the side. It's interesting to note that a lot of the text is up this way, except the outputs are up the other way. That's just an oddity. from Big Clive
So inside is the little circuit Board I'll put up this way. from Big Clive
So inside we've got a little current shunt and what looks probably like an opamp. Going to guess that's an opamp or a dedicated current monitoring device. Let me just see if there's a number on it. from Big Clive
So it scans looking for those voltages. It also interrogates the other processor. from Big Clive
So it's going to disintegrate into pieces, yes, it is probably going to disintegrate into pieces. from Big Clive
So it's sparking the left hand side. from Big Clive
So let me let me focus in a more sensible height. I shall bring them that looks like a more sensible height. from Big Clive
So let you take a picture of that if you want to play along here, and then I shall show you the other side of the circuit board. from Big Clive
So let's get the circuit board out and take a look. So I shall zoom down for this just so you can actually see. from Big Clive
So let's say untangle the leads first start. Big, long lives. Their huge leads. from Big Clive
So let's start with the battery monitoring, which is super complex and this is going to be vertical because it just made sense to draw it vertically. from Big Clive
So look at this. We have a PNP transistor. from Big Clive
So looking inside this little box. Spanja. from Big Clive
So my guess here is an electrostatic discharge or just a natural failure of this. It's a shame it's wiped out a product and it's it means you can't really just replace component to repair it. from Big Clive
So nine eyes are normally steps of voltage up inside to a higher voltage at low current, and char puts electrostatic charge near that does two things. It helps precipitate dust out of there. from Big Clive
So now I'm going to start off by soldering on the output connector. from Big Clive
So that answers that question. Quite an interesting technique. from Big Clive
So that is it. Interesting circuit uses clever but slightly shady. I mean whams if you open this switch just as it sparks. from Big Clive
So the chip knows where to get its timing from in the sine wave. It has a resistor I value 1.5 megohm. 2 resistors would be nicer and serious as to the voltage rating. from Big Clive
So the final bit of them stormed is this horrible little voltage level indicator. This is your battery monitor. from Big Clive
So the positive is connected directly to the end of the two lithium cells here. from Big Clive
So the power supply is that resistor, that diode charging that capacitor with the Zener diode or Zener diode across it if you prefer to shunt the voltage level to about 6.8 volts. I measured 7 volts. from Big Clive
So there's not much else to say about it. There are other versions. from Big Clive
So this. Resistor here is part of the power supply. from Big Clive
So to make this circuitry easier to follow our divided into 2 pages, let's zoom down this. from Big Clive
So what actually happens when you put the LEDs across, if I was there? from Big Clive
So what I'm going to start by doing is flowing some soda onto all four of these terminals on the circuit board. from Big Clive
So when the processor wants to check the voltage of the first cell. from Big Clive
So when you join these cells in parallel and you could just use a single cell if you wish, or you could make a stack of them in parallel like this. from Big Clive
So when you push that button, current flows and it basically starts the circuit oscillating. Charge the voltage up. from Big Clive
So when you're charging it, the voltage will gradually rise and it's filtered via A3 and 13 resistor and a 100 nanofarad capacitor. You can use various values, but 100 nanofarad is very common. from Big Clive
Socket and it's completely dead, he said. Initially it went very flaky and intermittent and then it would it. Also, he said that there was an issue with it leaking current to LED lights. from Big Clive
Some current will flow through this pull down resistor that's normally used to keep that MOSFET turned off, and it also contributes to the analog to digital converter voltage reading. from Big Clive
Some of them do fake the solar panels. This is not going to easily. from Big Clive
Sometimes it will just pop apart, but most of the time it does kind of stay stuck together because it kind of it was soft and sticky at that point. from Big Clive
Spelt with a Z. All right, there's a Wi-Fi module. from Big Clive
Strange, but they've got diode 2 resistors to LED's. That is the act of the circuitry. from Big Clive
Sudden appearance of snips, chopping wires to disconnect the circuit. That's what you do. from Big Clive
Suitably high voltage. OK. So you touched agreement on. from Big Clive
Supplied pre programmed so the processor has. from Big Clive
Take it apart. So I'm seeing these little dimples here. I'm also seeing these little covers at the side. Let's say I get this spudger into the covers at the side. from Big Clive
Tesla Battery, which kind of means that that's just like is that 27 million million per power bank you could make out of Tesla? from Big Clive
That can take this battery but operates at 20 volts and I've been told that. from Big Clive
That does kind of allude that something has gone horribly wrong. Tell you what. from Big Clive
That drew a blank. That's not a surprise. from Big Clive
That emitter and does it connect to her and that one? from Big Clive
That goes to a diode for half wave rectification and then to this smoothing capacitor which is about 47 microfarad at. from Big Clive
That I just ended up buying. No particular reason for buying this one. from Big Clive
That is perplexing. So there we have it. If you see cases like this, I hope this isn't someone's actual logo they've stolen as well, because that would be a shame. from Big Clive
That make it kind of special and that, as I say, might be OK in China and India, but it's not really too acceptable anywhere else. from Big Clive
That may be a clue. from Big Clive
That means the next thing I want to do is actually cover off that and see what's underneath and see if there's anything obvious under there. One moment, please. from Big Clive
That would all go. I've got to calculate that now. One moment, please. from Big Clive
That's all the crystals there for. Is that accurate timing of the? It may possibly run the actual pattern as well, but also. from Big Clive
That's it. Uh, interesting module. Is there anything else I can really say about this? Yes, there is. I shall. from Big Clive
That's not even going to fit in. What about this one? This is going well. from Big Clive
That's strange anyway. Then to the automaker controller, and over here there is a little buck regulator based on a. from Big Clive
That's the perceived value of how much energy you're going to get if you recharge it repeatedly over its cycle over X 1000 cycles. from Big Clive
That's them there, and they're in parallel, going straight to the output here. from Big Clive
That's why I've invalidated my warranty on the certificate of this product has passed the test. Excellent. It's not passed my test. I mean, it works. from Big Clive
The black connection here which is live. from Big Clive
The black wire going in is connected to. from Big Clive
The CAP is off removing some of the ground tracks that process. from Big Clive
The cells are connected with the extreme negative end to this pad, the extreme positive end to this pad, and then the center connection to this pad. from Big Clive
The current could flow through this diode, but as long as the two Mosfets are on it will flow in the circuit however. from Big Clive
The current is flowing from the higher voltage one to the lower voltage 1. from Big Clive
The current is flowing through that cell has reached its full voltage, this MOSFET turns on and it will just basically. from Big Clive
The current is going to be roughly 1.5 volts being dropped and a freshly charged battery. from Big Clive
The final bit of the puzzle. Oh, let's talk about that reset there, right? OK. from Big Clive
The fuse is in the neutral. I suppose it's better that that. It doesn't help if you poke the probe onto a grounded metalwork, does it? from Big Clive
The hot air gun is part of a yahuah 8786D. It's quite. from Big Clive
The image so that correlates to what's down below. from Big Clive
The latest back. I'll unplug these. from Big Clive
The LED's are lighting nicely, thank you very much. So I'm going to put this bit of heat shrink across now. from Big Clive
The light is back and were read to continue. For reference, at three volts the current consumption was just 300 milliamps. At 1.5 volts it was 200 milliamps and the spark was notably slower. from Big Clive
The lights are off, so this is the yellow circuit. from Big Clive
The little resonate at the sodas, they're looking very cool, but that's only because it's a reflective surface and they're as presumably a serial memory chip look. from Big Clive
The live in this instance. from Big Clive
The main reason for such a a crystal it like that is for accurate timing for the automatic switch on switch off mode. from Big Clive
The negative is actually going out, so to complete the circuit you actually have to. from Big Clive
The next bit of the circuitry is kind of interesting. from Big Clive
The numbers in the chip are FMD. from Big Clive
The one you don't want to shout out. When you're putting the battery on. from Big Clive
The only bits needed are the two resistors, here the. I mean they could have saved our resistor. Maybe they just want more components, make more realer. from Big Clive
The other bit of the circuitry involves mystery chip. from Big Clive
The other part of the circuitry is for monitoring the voltage across the cells. from Big Clive
The other things that are interesting to note here are the simple solar charger is just going via a diode with our LED and resistor. from Big Clive
The other tool I made a mistake in the circuit diagram, the other one. from Big Clive
The output current is rated at 1 amp and not there 2 amp and I was squeezing it quite hard and I got up to 1.5 amps. So it's A1 amp power bank. from Big Clive
The outputs of 123456 and seven go to the control pins of the H bridge driver. from Big Clive
The positive goes through a polarity protection diode which also drops the voltage down slightly, which will have benefits for dissipation from that resistor. from Big Clive
The positive goes to pin nine of the processor. This could be a clue. The negative goes to PIN 7. from Big Clive
The power bank trip so as the USB in with that little decoupling capacitor and the USB out with its little capacitor. from Big Clive
The power supply. This looks like the output capacitor and it's not bulgy, but tell you what I'm going to do. from Big Clive
The red is connected to two of the meters, the black is connected to other. from Big Clive
The relay says 5 Volt DC, so it's being powered directly from this but. from Big Clive
The reverse engineering is complete. Let's zoom develop in this and take a look at the circuitry. So this is the through hole side of the circuit board I've flip. from Big Clive
The schematic. Right. from Big Clive
The series and all these circuits just sat across those cells in series. from Big Clive
The solar panel charges that directly via an ordinary silicon diode. from Big Clive
The subject of this video is very small, so we'll just cut straight to the chase and we'll go into the expanded image. One moment please. from Big Clive
The supply of current through the transformer. from Big Clive
The the fully charged cell from being pushed too far. from Big Clive
The tool and I made a mess of a previous video. Where is that circuit board? from Big Clive
The transistor is out as being identified it is. from Big Clive
The waveform. The zero crossing point of. from Big Clive
Then goes the first probe. In goes the second probe. from Big Clive
Then it reveals. from Big Clive
Then the green circuit. It's sparking the right hand side. What happens if I connect both at once? from Big Clive
Then you need not turn it off. For this, you need the special probes that come with it. from Big Clive
There are two LEDs, red and green, with a 1K resistor each. There's a couple of decoupling capacitors just for stability of operation and then. from Big Clive
There are two positions for resistors. from Big Clive
There is a little. Let me grab the drawing again. from Big Clive
There is a path. from Big Clive
There is an FM 9610 power bank chip. from Big Clive
There is that attitude towards labour in China. It's very odd. Doesn't happen here. Maybe they're a bit too soft here. Maybe we need more test equipment like this. from Big Clive
There is. Where is it? from Big Clive
There was a .1 Volt difference. I put a clamp meter over and then dad the wire on and there's 500 milliamps flowing between them and once a. from Big Clive
There. And if you just took this connection directly to the 0 Volt rail, that would form a feedback oscillator where this is the feedback winding. from Big Clive
There's no fancy pull downs in these Mosfets because it's less critical. The process will go to 0 Volt and output, which turn them off and it will go to +5 volts to turn them on. from Big Clive
There's only one connection. They've mixed this up here. They've actually got because the way they've wired it, they've got live going here and you're going here. from Big Clive
They don't want to come out. OK, tell you what, is it worth taking? from Big Clive
They lasered this off, but they didn't laser it deep enough. from Big Clive
They might even trip protection as it is. from Big Clive
They touch input has the pad. It's got the 470 picofarad. The data sheet shows two 1000 picofarad or one nanofarad capacitors in series at rated one kilovolts each. They've used. from Big Clive
They're part of the thing that holds it together. from Big Clive
Things are doubling up, so I well, I'll show you going first. from Big Clive
Things worth mentioning in the earlier part of the video, I said it has to be used on the sort of. from Big Clive
This 2K resistor here is used to sense the voltage between the negative connection which is this end of the Mosfets and this end of the Mosfets and. from Big Clive
This calls for the magic isopropyl alcohol and not petrol as someone suggested, but they're equally as flammable substantial amount. from Big Clive
This capacitor here is part of a. from Big Clive
This is a I think it's 20 pin. Hold on, let me look at the bigger drawing. That would make sense because then it can count the pins better. One of around 20 pin, yeah it's a 20 pin chip. from Big Clive
This is so strange, I'm not sure why they've done it. You could feel free to chime in with ideas about this. from Big Clive
This is where it just bursts into flames anyway. from Big Clive
This little thing has fallen off. That's good. I didn't like it anyway. from Big Clive
This off, there's no LCD display so don't have a zebra strip to worry about. from Big Clive
This one's going to reach. It should show its charging with the red LED. from Big Clive
This requires the use of a. from Big Clive
Though projector is, well, entirely your choice, you can get sets of connectors on eBay with PWM precribed with tails ready for use. I tend to. from Big Clive
To allow it to actually do various effects with the LEDs and weight that others as well, it uses an extra bit of circuitry. That's that side done. Let's go to the other side. from Big Clive
To heat this and melt it on. from Big Clive
To tally up with the front of the circuit board here and it breaks into 3 distinct sections. from Big Clive
Torture over the touch? Wrong. Low. from Big Clive
Transistor to switch a relay, little clicky button. from Big Clive
Triac is driven via this 47 nanofarad capacitor, a 470 ohm resistor. from Big Clive
Two volts, which wouldn't be good for our batter like that. The minimum voltage should be about 15 ish volts. from Big Clive
Uh, but you can change the value. There's app data sheet for the TP 4056 that shows the resistor values in the current. from Big Clive
Uh, the unity sent me here is a Wi-Fi. from Big Clive
Um, anything else worth mentioning about this? Nothing at all. from Big Clive
Um, but so make sure that you tape over that and also support them together. Make sure that you don't put too much pressure on little tabs in, because these are little pouch cells and they've. from Big Clive
Um, but such a shame that they didn't just put a bigger sell in here because uh. from Big Clive
Um, I wonder if there's another supply. I wonder what there really is right now. I'm going to plug this again. from Big Clive
Um, if I just, uh, do some computations here, right 9,000,000. from Big Clive
Um, on the soccer board itself. Good, generous space from the high voltage. It's doing kind of double duty here. from Big Clive
Um, or they might have just scaled it up into the sound wave to make it so that it doesn't go too dim. That's possible as well. from Big Clive
Um, SM 7035 P. from Big Clive
Um, the relay. from Big Clive
Um, the switch simply pulls PIN 4 down to the 0 Volt rail. from Big Clive
Um, things worthy of note in here. from Big Clive
Um, to show that, well, there's a light. from Big Clive
Um, we go up to 1 amp. from Big Clive
Um. And see if I can get any life out of this. from Big Clive
Um. So. from Big Clive
Um. That's more or less it. They're the two main things you could experiment with this capacitor value here and this. from Big Clive
Um. The. from Big Clive
Um. Until they're all equal. I don't know if they'd ever really reach the point that this thing would cut off at that point. Then the other option, this would be much easier. from Big Clive
Ungrounded metaphor inviolate. Don't remove the ground if there's one on it. If that's the case, it's kind of designed for double insulated lights with that metal housing. from Big Clive
Unplug it. Leave it for a few seconds. from Big Clive
Use this connector. I've just used them for a very long time so I've stuck with them. from Big Clive
Use with caution of buying from eBay, that's one where that thing is suggested. They're putting a bit of foil behind the plastic case and detecting capacity through that would actually be. from Big Clive
Using two lanes, two of them go to the 0 Volt rail. from Big Clive
Very quickly. Is it going to do it? Is it, is it going to perform? from Big Clive
Very strange. There is also A1 nanofarad capacitor across the gate of each just for presumably stability. from Big Clive
We all know that eBay is notorious for facilitating the sale of scam products. from Big Clive
We have our probes, said Clive, handling them gingerly. Notice not shrouded tips, not finger guards or anything. Turn the power on. from Big Clive
We have the plus. from Big Clive
We're getting 3.3 volts. That's not so great. from Big Clive
We're getting 5 volts. So that's. from Big Clive
We're in advance that because this is sparking us him down a bit, I'll probably have to turn the light off. I don't even know if it'll show with the light off. from Big Clive
We've got a side ACK going to the negative, but notice the air. from Big Clive
We've got the. Control section which monitors the voltage across two cells. from Big Clive
We've got these big fat resistors and a MOSFET to switch them. The sensing circuit to detect when overcharging is about to occur. from Big Clive
Well this has failed. It can't be repaired. That's annoying. I hate things I can't repair. But there we go. It happens from time to time. from Big Clive
Well, as e-mail to on shrink it down may appear to be a better description. from Big Clive
Well, I wish everything was as easy to depot as that. from Big Clive
Well, it is. It's connected there to. from Big Clive
Well, it might not be. Oh, no, I've got continue to there. from Big Clive
Well, just as it. Well, it just as it sparks and also. from Big Clive
Well, that is odd. It's using clever things into my know what happens, and they use clever tricks. It makes it much more complicated to reverse engineer because. from Big Clive
Well, this is going to be such a treat because. from Big Clive
Well, this, this bit of trims come off. That's a start. from Big Clive
What is it doing to balance the cells? And it turns out it's basically just dobbing a resistor across the cell when it reaches the required voltage and just trickling the current past it. from Big Clive
What's that guy game that they gotta catch em all? Poke him on it? It's got that 2 tone color tip. from Big Clive
What's this? They're all ramping up and down. Exciting and very, very unpleasant. Uh-huh. And then back hopefully to static and because of the way these LEDs are driven. from Big Clive
When is this coming out? What bits are falling off everywhere? from Big Clive
When it reached say, it might detect. from Big Clive
When you actually try reverse engineer circuit board, it is not. It was quite hard to draw this schematic out. It took a few efforts to get it in a sensible style. from Big Clive
When you look at the back. It's got some very odd. from Big Clive
When you're away camping somewhere, it's quite handy to just know where north is. from Big Clive
Wherever I put that circuit board, I had it and now it's gone. from Big Clive
Which makes it quite interesting. from Big Clive
Which the ports will be worn in parallel so as I wind up. from Big Clive
Which used to be owned by Walmart. Not so I'm not sure if these will be common in America as well. It's their multicolour lights, which happen to be blue, purple and pink, which are very attractive. from Big Clive
Which will instantly, theoretically I'll just put tons in, should theoretically just release that hot melt glue. from Big Clive
With electric ignition, with just a couple of air double ears to run it both, that might be the perfect module for the job. from Big Clive
Yeah, kind of, yeah. It's done it right. I'm going to take a picture of the circuit board and Michael, explore the circuitry. One moment, please. from Big Clive
Yeah, the generic Christmassy light type one. Um. from Big Clive
Yes, it is. And we'll try and get the coating off that and we'll just see what it is just for interest. One moment please. from Big Clive
You could use the GPS in your phone and charge from this massively high power capacity power bank or incidentally. from Big Clive
You find out that. from Big Clive
You want to remove the battery from these devices. from Big Clive
You'll find with the heat shrink, if you heat it up and then pinch it while it's still hot, it will kind of fuse together and that can actually provide a bit of air extra stream relief. from Big Clive
1st Shift A and this will be charged up. I shall unplug the thing. from Big Clive
3.3 volts here because it is dry about 90 milliamps, and don't know where that's going. from Big Clive
3.6 * 2 Seven .2 and it will say deduct the 1st 3.6 so this is also 3.6 and it basically scans along and as soon as one of them reaches say for instance it's charging 4.2 volts. from Big Clive
10K. What that means is that typically at room temperature there are about 10,000 ohms resistance. from Big Clive
15 to 21 Volt basically the positive end of the battery via 100 ohm resistor which is diffused properly and it's a couple of decoupling capacitors. Now it supplies the processor. from Big Clive
16 Volt and there's also a Zener or Zener diode on the other side of the circuit board that caps the voltage to around about 6.8 volts. from Big Clive
32 points out that is correct because that's a nice binary divide division of 1 Hertz, which is what it will be using as a time based internally for its timer. from Big Clive
66 ex. from Big Clive
120 Volt or 240 volts. On arrival it actually has an embossed that it says output 12 KV input 1.5 to 3 volts. And to be fair it does have red and black leads, but it also has these green and yellow. from Big Clive
550 and that is described as a PNP 25 Volt 1.5 amp, the gain of roughly 200. from Big Clive