SUPER DEVICE for LEDs testing

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LED TESTER got.by/2ycryp buyeasy.by/redi...
2N60 got.by/2ycs36
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Timer NE555 got.by/2ycwhn buyeasy.by/redi...
High speed diodes got.by/2ycwqs buyeasy.by/redi...
Resistors 600 pcs got.by/2ycwwm
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Inside a PCB factory • JLCPCB Factory - 2-lay...
How to create PCB in a factory - JLCPCB • How to create PCB in a...
My laboratory equipment
Laboratory power supply ali.pub/2tmanr
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Multimeter 1 ali.pub/2tm7hm
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Multimeter 2 ali.pub/2tm7xk
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Multimeter 3 ali.pub/2tmcks
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Multimeter 4 ali.pub/2tm9qb
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Current clamp ali.pub/2tm9yo
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Capacitance and inductance meter ali.pub/2tm945
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Universal Signal Generator ali.pub/2tmgij
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Oscilloscope ali.pub/2tmb1d
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Transistor tester ali.pub/2tma7t
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Thermometer ali.pub/2tm8sa
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Frequency meter ali.pub/2tmigc
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Electronic load ali.pub/2tmagy
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Intelligent Chip Tester ali.pub/2tmicu
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Soldering Iron ali.pub/2tmbm6
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Microscope
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[@erikweisz3474]

His channel is by far one of the best KZbin channels; his experience, clarity and generosity make him a true teacher of teaching and electronics. Thanks for everything.

[@johnmcclain3887]

This is a great video, I'm just converting my shop from florescent lights to led's, and can see this device making installation far easier. Thank you for such clear and well thought out designs.

[@DachaLife]

i have made this project but instead of using a battery to power it i have used a small 6v smps i had laying around i also changed the inductor to 1200mH it works superb thank you thank you thank you!

[@gorjy9610]

very adjustable design, I make one using almost only parts (except 555 and two resistors) taken from old usb charger. Some changes was needed as high voltage transistor was used instead of mosfet and current draw is little bit higher but I'll not use 9V battery as power device so it's not a issue for me.

[@theoneohmresistor]

can someone *please* tell me what other transistors can i use? I can not buy that FET in Serbia, and i do not want to wait multiple weeks to ship it to my home from China Edit: I found some high voltage MOSFET and it works. It's more powerful than i have thought! I have used 2N80 transistor

[@Infinion]

Will 5mA be low enough to protect reverse biased LEDs if the LED tester is wired backwards?

[@jafinch78]

Awesome, great device build. Sure is easier than using the Diode/Continuity testing on each LED method.

[@moinshaikh2265]

Last 2 weeks ago i have saw this video and i realized this the one what i am looking for but i was so busy and i can not make it out . Today i have purchased all the parts in 25 RS it less than a 20 cent . And i have completed WOW what a circuit. wonderful .and works wonderfully with li ion battery rather than 9 volt battery. Thanks to this chanal.

[@aa-wh2jj]

Can u tell me drain and source connetion to positive and negative which one connect to which one i have 4n60 mosfet

[@moinshaikh2265]

@@aa-wh2jj pin number 1 of 4n60 gose to pin number 3 of ic. pin number 2 of 4n60 gose coil and another end of coil gose positive voltage pin 3 gose to negative. NOTE . Coil first end to positive other end is not going to positive . it's going to 4n60 pin 2. 4n60 1st pin is gate 2nd drain 3rd is source. If you have any problem ask me again you are well . Thanks

[@aa-wh2jj]

Thank you now I got it. I was waiting for the mosfet to be deliverd. But suddenly I found it in led driver circuit that's y I came to video and wasn't sure about the drain and source.

[@MCsCreations]

Beautiful work, dude! Really nice!!!

[@williamguillen4113]

You can use this device for check zener diode voltage also and high and low voltage diodes.

[@tonbovee5486]

Hi, just an idea. I use same priciple to test I use an 5 volt charger and connect the transformers secundary and parts from an old 5 volt charger to generate the high voltage. In that way it is double isolated from the mains.

[@moinshaikh2265]

Such a wonderful project. Such a important tool . I have so many already in my use but they're operating by 220 v or 19 v but this one is operating by 6v Great. Thanks for this wonderful video.

[@MaxTim995747]

Hello from Russia;)

[@electronic7979]

Excellent and very useful project

[@jparky1972]

I did not understand it all. But thank you for sharing as always. A good way for me to learn. ☺

[@x10iman]

Very useful project. Thanks for sharing.

[@gabrielconstantine7384]

Made this yesterday to check tv backlights, works good but just dimly lights them. At 6 volts it puts out 285 volts DC and at 10 volts it puts out over 400 volts. I used an IRF830, a 4.7uf cap@ 450 volts, an inductor at 990 uh and a FUF5402 ultra fast diode, as that's all I had. The only problem is, at 300 - 400 volts, it doesn't light any LEDs except the white ones and the meter gives no indication as to how many volts it takes to light it. Also, when I touch the ends, it gives a small electrical jolt. Any ideas why it doesn't light the LEDs more brightly, or give a voltage reading and why it gives a shock? Thanks.

[@Rudimaximus]

Works

[@gerwinniwreg6919]

i already make one it has 250v output 9v input, but the problem i cannot light a LED light. neon light it will glow. when directly put the +probe in the capacitor without 150k ohm its spark. thanks for sharing and more power and video.

[@Edmorbus]

Thanks for this wonderful video

[@Vidya1939]

Nice video TKQ

[@nguyenbaokhanh1484]

How many wire L1 ? Madan

[@MedSou]

Thank you 👍👍👍👍

[@THE_LITTLE_BEATS]

(Nixe video) I like your teaching style. super

[@alyo3299]

Can I use this cickrut to charge capasitors

[@unalakdogan9416]

it worked, thanks

[@markcliffordmangaoang8786]

very nice explaination..

[@Edmorbus]

how many turns of coil do i need to do to make the 800uH

[@joemadden567]

Measure it

[@Edmorbus]

@@joemadden567 how to measure it

[@rashidakta9743]

It's no mater if you turn more than what you need ..just try it ...it easy just compar with this show...

[@abegafouda9136]

@@rashidakta9743 Why not give a rough idea of the number of turns, like 3 or 100? Looks like it makes a huge difference. Please. Thanks.

[@williamguillen4113]

@@abegafouda9136 Can start with 50 turns.

[@satheeshr9063]

2n60 is a mosfet /transistor ? 2n60 connection D,G,S diagram

[@MyOwntuahur]

its awesome work for you,, thanks

[@staltabzch]

👍👍👍

[@andchip.s]

Hello Kasyan TV Could you do a video on making a high quality LED driver for 240v mains something a little more advanced than just a capacitive dropper, anybody in the comments got any idea's as well ? Thanks

[@electromagic3111]

He can not

[@solidhit2]

A created your project on a small cheap protoboard. It works perfectly but I would like to have the option to change R1 for more output current (10ma, 20ma etc). Will I be having any problem with the circuit if I just change this resistor? How much current can I provide to the output? I'm really grateful for your hard work!

[@williamguillen4113]

Is dangerous use it with more current, remember is 320 volts.. DC.

[@kashifgillkashifgill3752]

i try to make it but i did not found indector,please tell me the method of making indector for the device.

[@satishkumar-gg5fm]

Why it's not working on 135volt led strip???? And how to increase amp ?

[@due204]

Lo hice y me funciono bien. Súper útil y compacto.

[@relvintageelectro2425]

This circuit auto adjust or not?

[@williamguillen4113]

Yes, this circuit auto adjust voltage, the current is very low.

[@unalakdogan9416]

I made this circuit twice but it didn't work. The output is 5.8 Volts. I simulated on the computer and gave 5.8 Volt output.

[@abd-alrahmanrushdy7570]

Can we use it as led driver ?

[@rashidakta9743]

Thanks..it's nice

[@cjmendoza8599]

Kasyan TV sir/mam can i ask a favor?how many turns in 0.15 mm wire to produced a 1000uH?thanks in advance

[@wasanthawimaladharm]

320v not harmful at body contact means minor current at output?

[@dexterparungao3612]

can i use it to replace led tvs backlight inverter in the circuit?tia...

[@marekaksmu]

What happen if accidentally short output ? 😳

[@user-bo5iv8kl3r]

Добрый день. Собрал всё работает но потребление от БП почти 1 ампер и мгновенно греется транзистор поставил (irf540). Что не правильно сделал не подскажите.

[@satheeshr9063]

Register watts and inductor value ?

[@mohankumar-vr9cm]

Like it do more videos

[@arbatik1984]

Почему то на выходе , получилось не больше 90 вольт. Замерял цифровым мультиметром. Смоделировал в протеусе , те же 90. Что я делаю неправильно???

[@dingpalope175]

Hi madam, can make video for gold detector with 24 inches deef detect the gold, pls make clear, thks soo much we waiting,

[@smartatwork2344]

I had build it like your schematic, but it doesn't work. The 555 is oszillating at 20khz but the Output-Voltage is only nearly 8 Volt. I bought an Inductor with. 900 uH. Is 900 uH right or should it be mH?

[@lampesouder]

Hello, I have also built according to the diagram and it works properly. With 12v input, I have between 300 and 500v output depending on the different coils. Great to test the leds because there are only a few mA. It is actually μH. Test from 200 to 900 μH.

[@smartatwork2344]

@@lampesouder Thank you. I had a failure in my build. Now it works fine. I changed the 555 circuit to adjustable PWM Output so it's possible to adjust the Output-Voltage.

[@mohamadmansour2595]

I build it using same schematic diagram values, i got 18.2khz at pin 3 of 555 and 130v dc. I used 6 volts as in diagram. How should i get 300v output.

[@techNK12]

Check ur circuit bro

[@illchmann]

Why not use a simple one transistor joule thief with a single 1.5V alkaline battery, no mosfet no 555?

[@illchmann]

Anshad Edavana, what?

[@illchmann]

Anshad Edavana, obviouly you do not know what a joule thief is! It can generate 100V or more with just a single transistor and a handful of passive components. It can act as a current source what is exactly what is needed here.

[@illchmann]

Anshad Edavana, google for it, next time read first then ask 😜

[@therealjammit]

Possible. You definitely have to make the windings non-symmetrical. The base feed would be wound as normal (around 10 turns), but you might need 50 to 100 turns for the collector/LED connection to be able to get the voltage boost you need. A joule thief is based on a simple design that's easy to make.

[@PF-gi9vv]

I made one ages back or shall I say I converted a fly zapper to a LED tester. The fly zapper works on a joule thief circuit. Here in the UK it only cost me £1 as we have shops over here called Poundland that sold the zappers.

[@sajjadmirzaee17]

Hello good master where are you from? The device is really great. You have created a beautiful work I did not buy a new device and I looked at your design first I have a few suggestions Place the voltmeter and ammeter in the circuit to show both components at the same time Thank you Allow me to get help from you if needed I am from Iran So you know our country is sanctioned by the United Nations as well as the United States Because of our bad-tempered politicians The Iranian people are in a difficult economic situation Once upon a time we were a kingdom We were the superpower of the world We were decisive Unfortunately, now the value of our national currency has decreased I repair all kinds of equipment for my fellow citizens ... Please you're welcome Help me solve some problems I have designed several electronic circuits I need a tutor Thank you for your help

[@mihaivatajele4946]

,👍👍👍👍👍

[@nguyenbaokhanh1484]

How many loops and wires are L1 wrapped?

[@therealjammit]

That's an unknown. Different types of cores will require different number of turns for the same 800 micro henrys. You could try different number of turns until you get to a point where the current draw from the battery is as small as you can get while still getting around 300 volts on the output. You can also try running the 555 timer at different frequencies. If you have the "wrong" inductance for the frequency the 555 is running at you'll get decreased efficiency, but it will still give a voltage boost. Without being able to measure the inductance with an inductance tool I would start off with about 100 turns for a ferrite rod that's about 0.25 inches in width and 1 inch long.

[@PF-gi9vv]

At a guess, i'd say 20 -30 turns.

[@richardbalatayo5473]

how many turns of coil do i need to do to make the 800uH (L1).... please advice. Thank you..

[@electromagic3111]

I dont think so

[@richardbalatayo5473]

@Mat Jivas Be considerate... you see, not all viewers here know as much electronics stuff as you do (i presume)....

[@rashidakta9743]

Just do it without matter to how many turn do you have ...just look to show and compar it ...

[@varun07ch67]

where is gerber file

[@DiscoverRajivVlogs]

Many leds will light up dim even they are dead. This device may pass it okey.

[@therealjammit]

True, but this will help you notice fully dead LEDs, or even compare a series string and look for the weaker LED. It's not a perfect test device for testing all LED problems.

[@Bharathdbs]

What is the output maximum current? (amps?)

[@johnnz4375]

Bharath Nani , as they said in the video, 5mA.

[@Bharathdbs]

5ma is too low. At least should be 2amp

[@JC232]

@@Bharathdbs 2mA 320V ÷ 150000.

[@therealjammit]

They use a low output current to make it safer if you accidentally touch the wires. It's really only designed to test LEDs, not drive them to full current.

[@deepak-ug3hx]

4007 is not high speed diodes

[@williamguillen4113]

Is a UF4007, UF means Ultra Fast.

[@deepak-ug3hx]

use cfl circuit

[@naimmirza9035]

Please give me a cerkit degeram link.

[@arrowstheorem1881]

What you have done can easily be copied in china

[@arrowstheorem1881]

The voice is too robotic. Need to sound more human and not like reading from a script

[@misterdude4296]

I can understand it better than Aka’s voice.