 Hey guys Today I wanted to try and figure out I wanted to check the voltages Which is the Zener voltage of a Zener diode this says it's 8.2 volts Now if you've ever looked at a diode a normal silicon diode we normally have a markings on it that you can see I'll have a number like I don't know, I-N 4007 4001 But it'll have a marking and so you can look it up These little Zener diodes don't So when you've got a couple out and you've been playing around with a few and you go to put them back in their appropriate bags You don't know whether it's saying 8.2 volts Or just a 2 volt It could even be a 12 volt That's hard to see on the back Right on there it does say 12 volt Yep, 12 volts This is even a 47 volt Now this is going to test the capabilities of this power supply And it will be the the first time that I find myself putting it into the mode where I can have 0 to 60 volts from this power supply rather than 0 to 30 volts Yeah, what else have we got here? And we've got a 30 volt Zener as well I've got a whole bag of them I've sent off with this mixed lot and I've sent absolutely lots So in a way some might say well You've got that amazing dose If you don't know what the other is Yeah, well I can't do that I have to figure out which ones they are And put them back in their appropriate bags So I did have a couple of them It was an 18 volt one that I had out I just grabbed these off the top of the pile And so and it was the 18 volt And the 12 volts that I was getting mixed up So these are fine Because these go from like one extreme I mean 2 volt up to 47 volt With a couple of few in between I think that's pretty good That's a quite nice little range The 47 volt one Which means I'll need to set up two Two lots of wires coming out And hook it together and get the system to track So as I adjust one channel It automatically adjusts the other channel And now use the combination of voltages So if there's 10 on here and 10 on there Of course I've got 20 volts coming then Now the trick is with these After a little bit of reading And looking at a few videos on the internet Is that you can test the voltage And you can go over the voltage And you won't harm the diode As long as you set Your milliamps Very low So I set up on both sides Here on both of these channels to 10 milliamps Which really Is probably Well when we combine the two It's going to be too much 20 milliamps could kill the diode If I go up too high But what we'll do is we'll see When the system is drawing If I turn this one on We'll see when it's drawing 10 milliamp there and 5 milliamp here The combination of 10 milliamp And then we'll know that that's the Zener voltage That's the Zener voltage Of the diode Which is what we want to be able to find out To put them back in the bag I've got this channel in There's three channels on this You can see the other channel there This is a 5 volt channel I'm not going to be using that Just a minute It's just easier to Yeah because it was nice To watch it going up in In Volts on there It's actually fine You can quickly add them up It's not a big problem But if you're checking out the 47 And you're looking at 23 and a half So many keys So when it comes time For popping it in I'll connect this across On one side When we're just going up to 30 volts We'll just use one of the channels Keeping simple Two volts up to 30 volts One channel And then when we're bringing in the two channels To go above 30 volts We'll use this meter as well Just to give an indication Of the one voltage Not split across two Like that Okay I'm going to do the first We're going to do the two volt one To put that bag there So we're going to lose it I'm literally going to Put the To the cathode side Positive So we're measuring reverse And What are we going to insert to? It's set at one volt anyway So that should be okay So I'm just going to turn that straight on The overcurrent protection Is on now By rights it shouldn't be able to Go higher than 10 millivolts But just to ensure I don't have to put the overcurrent protection on So what I'm going to do now is I'm going to Dial up the voltage As you can see it's on Millie there so I'm going to Just move it up a little bit Just to get it going So that's gone to 1.2 1.3 this is a 2 volt And what we're waiting to see Is we're waiting to see this We're going to allow it to go At 10 millivolts And then that will be our Or whether it's just an indication Because now it's on 1.5 And we've got 1 million So it's We're using a 2 volts As well So that's 2 volts 1.4 million So there we go We got to the We got to the maximum output And it cut us off automatically Which is good Because we've protected our diode So we know that diode is going to work for another day Down here I can see That it got to Move that across to there And if I turn this back on If I disconnect that and just turn that back on Actually We got to 2.3 Volts before that went to 10 mA So that's Diode number 1 I don't know how accurate that is I mean I wonder if you could do that 5 mA Maybe I need to Learn a bit more about the The details I just wanted the way to test the diodes And figure out Which bag there we're going to basically If I take an 8.2 Have we got anything between that We got a 12 volt We got a 47 volt And there's a We got 30 volt So let's get rid of the 8.2 And we go straight to the 12 volt Because this would be quite a humbling to use And if you're building your own ZVS drivers ZVS zero voltage Switching Which is a nice great thing isn't it We're going to switch on zero volts So same again we're going to connect Positives at the cap Where's that I'll pop that on there And this is Still on There's a 2.3 as you can see We're not drawing any amputage It's not drawing any wattage So let's Kick it back to voltage Put on the right one So I'm crossing I'm just going to take that up I'm going to minus this a little bit quicker On this thumbwheel And okay No worry about it, did you notice It just seemed like the amp between I don't know what that is I don't know if that's the power supply Or that shit And this was What was this? This was supposed to be Oh 12 volts isn't it I'm looking at the bike Behind me now So on 10 Now remember Even if I were to shoot this up to 20 volts now It would make the difference, it would just cut out It would just cut out So there we go, we're on 12 volts Just over 12 volts So I'm kind of just drawing Now I wonder if that's really As soon as you start drawing power Kind of There I mean that Is almost perfect That would say that this diode Because now there's current Going across this circuit Up until 12 volts That was nothing Now we're on 12 volts As soon as you go above 12 volts threshold Now we've got current being used I'm going to hedge a guess here And say that that Is a better Measurement Of this diode We're going to see, because we're going to try Another diode and see how close that is And as soon as it moves the mark here If that's on the correct voltage Rather than it going Above it Like on the 2.3 Or 2 before that did That's because I was trying to go up to 10 milliamp I wonder if it is better Just as soon as you start seeing The circuit being made and current Passing That's got to its threshold And then going up That would just, you know I think we call this an avalanche by it As well as an avalanche Okay, let's just Not enough for a second And we're going to pop that back in its bag Pretty damn accurate The way I'm looking at that Is going to be correct So let's go for what we've got here We've got 30 and 47 Hey, let's try that 2 volt again We're on voltage on here So let's just go down to 1.1 Just dial in, it's a lot quicker 1.1 And then I'm going to Put it fiddly So put the 2 volts Right, so let's turn that on So this is the 2 It says 2 volts on there So I'm going to wait If that just goes In a 1 little part 3, 6, 2 And now we're doing it Hey, look So 1.7 1.7 And we've got 1 milliamp And at 2 volts we've got 4 Hmm So let's try the We did the 12 Let's try this 8.2 then Because 8.2, I mean That's pretty 8.2 is pretty specific So you think 8.2 then That this Should be pretty specific on here It's not going to be This is probably Hopefully it will be the closest one Claiming to be so specific I didn't mark these up These are already pre-marked up when I bought them So As far as the marker pen because I can't seem to draw that Drawing over myself So there we go, we've got an 8.2 now So let's turn that back on And we're going to, what is this up On that, which is a little bit disappointing So right, now we're starting to get into a critical area So 7.5 Look, and we've got 1 milliamp So let's get it to 7.9 8.1 8.2 So I'm going to say that this Isn't particularly too inaccurate So 8.2 volts And we've got ourselves some current draw See the other one was bang on The other one was 8.5 0.1 1 milliamp, sorry 3 milliamp Let's see What we do at the highest scale Maybe 10 milliamp It's a scale that had been used to Demonstrate One of the videos I watched Because that was The resolution That was the one I should do on the resolution I've got the upgrade pack For this If you go and look at my other videos The upgrade Come in This is a 30 volts So then we're going to get into the threshold Of what this power supply can do In this configuration Pop this on 30 volts So I'm going to wind this up Just key it in to 28 You have one voltage So I can just go 28 I can put 28.2 Then again Probably better turn it on It needs to go down a little bit I don't think it likes the shock So let's go to 10 and just wind it up from there No It doesn't like that I've got this the wrong way around I don't think so I don't think so We're still on 10 milliamp We've got over current protection on Which is Turn that off I've turned the over current protection off It's still set to 10 volts And 10 milliamps So I'm going to see what happens What happens if we do go over So I'm going to go back to 28 volts Because this is supposed to be 30 volts isn't it Okay The over current I wish it was staying a little bit longer So let's just wind it up from here We can wind it up like that We can also I don't know which way it's at The 1 and 14 maybe there's some sort of What it will put a little bit with This should be able to go up a little bit quicker Now we're going into the That area So And there's our 30 volts 0.090 watts And then by setting this to 10 milliamp So at 5 milliamps I need to look at the Data Sheets I don't expect to have Sheets for these Generic Zenit diodes I'm just wondering About that Really great So we can safely say that That's starting to draw current now We're getting current moving across So We've got our 30 volts I think I'm doing this right I don't know if I'm doing it wrong I'm just trying to Get closer to the accurate measurement There's a slight variation Throughout the whole lot but it is only A milliamp or so isn't it Which is pretty good Right now the next bit The next bit it's the best 30 volts Oh look the bag's got a hole That's going to come in handy Now I've got two holes One permanently open If it's sticking out So I probably need to find out another bag for that See another thing We've started coming out of the bags Because these are pretty Pretty thin bags At least I could do this To find out which one it is And which one it isn't So now we've got this 47 volt What haven't we So okay we need some more leads I need to put two leads in here Obviously red and black And then we're going to tie This red And this black one together And then we're going to track Hit the tracking So we have whatever I do on this Will happen here too and then we just combine So we've got 20 here We've got 20 there and it's 40 volts in total We're also going to use These probes on this So we can actually see it going up In the voltage there too That's the That's the true voltage So Gap of the lead Put these together Just like that and tuck it inside Just to keep it nice and Neat and out the way Even though it's just going to unroll now Yeah just a bit of slime So we can just Track it down there Loose it out the way please Thank you Okay and now How are we going to do this We're going to get our thing here We're going to tell this to track We're going to turn the tracking on now They're both on 30 volts So that's 60 volts we've got there And let's just check To see if we have or haven't We don't want to put that on do we Because that's not going to It's not going to go to anywhere If I turn that on Here we go 16.03 volts 60 volts So we don't want that high So let's just put that on there 47 volts or something And that would be 24 volts Does that actually work No we're going to put it on to the right thing That's why Okay 24 volts That might still be a little bit too high But we're going to see The way I'm going to do this Is I'm just going to shove that probe Inside there I'm going to shove that probe Inside Not inside the jaws There we go And then I can just put the diode inside the jaws I'm not kidding I'm fine with the diodes I didn't drop them I didn't eat them did I I'm getting a bit peckish What do I do with it Is that it 47 volts Yeah If I just turn that off now I just want to do this Let's just pop that in There How much for that I wonder if I can just stick it down there as well I'm not going to try and get it inside the jaws But I'm not going to be that That first two it's not I know it's there and We can all see it and there it comes Let's just turn that on Okay I think that was my connection I had with it That's why that took so long So let's start spinning that up anyway Let's just sit that so we can do it One at a time 24 so we want to go to 47 So I put a straight on to let's say 40 40 I didn't like it So it's up a limit of 32 I don't know why it's saying that Because I've got tracking on Tracking's on So Anyway Let's do like this instead So we've got 35 volts coming out Okay so in total over here We're on 45 volts And this is a 47 volt zener On 2 million Right 2 million up here 46.7 2 million 47 Well I suppose that is because We've looked at it like that That is 4 million So if we sat round about the 3 million You've got to remember that 2 from bind 2 from bind So that is 4 million Dropping between 3 and 4 So I've got this connection So what are we doing So that's how we test That's how I've learnt very recently How to test the zener diodes Which always have me baffled Brilliant Oh if you've got this far Thanks for watching Yeah, bye y'all