{762} Very Simple Optocoupler Testing, Opto-Isolator Test

[@farajiabilahi7393]

You are doing great job in electronics repair capacity building. I think you deserve to win award on best free online training channel. I salute you brother.

[@HaseebElectronics]

best regards and special thanks for your beautiful appreciation

[@telescuaurel3175]

Vă mulțumesc pentru amabilitatea dumneavoastră. Foarte frumos explicați. Salutări din România.

[@HaseebElectronics]

multumesc mult pentru cuvintele tale pretioase. salută

[@arnoldsatombo186]

he is the best of the best .he is totally helping especially pple like us who are not able to afford chargable online courses ..i salute him he should have million subs by now

[@telescuaurel3175]

Mulțumesc pentru explicațiile tehnice.

[@HaseebElectronics]

cel mai binevenit

[@HarlavanisPanagiotis]

Excellent job dear friend, have a happy weekend 😊

[@dzabakwesi2213]

Thanks for the video sir. You always make the difficult things simple for me as a beginner and I really appreciate that.

[@muhammadishtiaq24]

Excellent Weldon helpful video keep sharing

[@eliasbourozrrrs8585]

Thank you dear, greetings from Greece

[@HaseebElectronics]

best regards

[@t1d100]

Another wonderful video, Haseeb! Thank you. I find the simple octocoupler to be intriguing... What fun things might be made with it? Of particular interest is how it might be used to make an electronic potentiometer that would not be subject to the typical scratching noises of a dirty mechanical potentiometer... But, to do this, the octocoupler might need to be deconstructed into its separate parts... Why?, Because, if you just use a mechanical pot to control the octocoupler LED, whatever glitches that are in the mechanical pot output are going to be passed to the octocoupler... Create a box with two chambers. Cut a hole, in the dividing wall. Install a mechanical sliding gate over the hole. Configure a common transistor with a Light Dependent Resistor on its base. Place it in one side of the box. Configure a common LED with a current limiting resistor. Place it in the other side of the box. Use the mechanical sliding gate as the control. I am just thinking out loud, here... IIRC, there might be something called a "light gate?"

[@afayimo]

super..... Masha Allah your explanation is great.....

[@HaseebElectronics]

it is my pleasure

[@lupojacobo9892]

Shukriya Maestro. God bless you and your family

[@HaseebElectronics]

So nice of you

[@nandakumar621]

I had no idea about working optocupler, u r video helped me great understanding🌹🙏👍🥳thank u for u rgreat support...

[@drameriemmanuel1187]

Love your teaching

[@HaseebElectronics]

It's my pleasure to share.

[@amrreda1110]

Informative video. Easy circuit to test.

[@HaseebElectronics]

best regards

[@HelgiThorisson]

Great information as always.

[@HaseebElectronics]

it is my pleasure

[@kmhovlog6185]

wow thats aesome superb informative video good job thank sfor sharing good morning

[@gopalarao8578]

Hi sir...,Namaskaar. This is very simple testing idea. Thank you very much 🙏

[@AbdulMomenZargar60]

Salaam Bhai Saab Good Luck

[@kuriakosemathew1854]

Excellent video dear brother … we expect more informative videos ❤❤

[@arunkumar-bh2dp]

very clear simple way of testing.

[@chriscom32]

Good day to you, I totally enjoy all your Smps videos. I am working on my microwave, power board ,and it keeps damaging 2 diodes, after the mini transformer on the board. The resistors and caps on the board read good the only thing left was the otocuplar and the relay.I will keep watching some of your other videos, to see if I missed anything. The micro switches check out. But I was leaning towards the transformer on the otocuplar. Can you point me in the right direction. Will send a picture of the board later if needed. Thanks for all your time in making these videos and I will be doing some more research

[@zakiservis211]

Ok menyimak terimakasih atas berbagi informasi!

[@chanderparmar9709]

Sir you have brilliant knowledge thanks🙏

[@maissathiaw963]

you are the best many thanks my friend

[@alazizelectronic7618]

Excellent video 📸 to Sir 😊

[@FishingNOutdoorFun]

wow very well explained

[@HaseebElectronics]

best regards and special thanks

[@iosifferencz5432]

THANKS for userul information

[@AbdulH907]

The battery cell without any resistance is around 1.35V and giving about 70mA. The resistance across pin 3 and 4 is above 5K ohm. Is the optocoupler TLP560g good or bad?

[@rolanddejesus8685]

thanks very much sir for sharing...God bless.

[@Versatiledani]

Good informative video

[@HaseebElectronics]

thanks a lot

[@rozikhan6202]

Masha Allah

[@ElectroWorkshop-]

Thank you for a good video. Can you possibly make a video of a faulty ka3525a. I have a inverter but outputs aren't stable. I have tried replacing it and still same problem. Do you know maybe know why this could be a problem?

[@thehooplabs]

Nice sharing bro

[@susantaatha6468]

Excellent 👍

[@mahendrababununna5440]

Excellent Sir ❤️

[@pravinpadhiyar2]

Very nice video sir

[@alientronix6235]

Hi sir..very informative video... I have a question for you.... What is the purpose of a single loop copper wire outside a transformer core in smps? Sometimes a single loop copper wire is connected to gnd.

[@nayanjagirdar8408]

👌👌👌👍

[@electroniquepassion]

Excellent 👏👏

[@jefazonet]

Excelente video

[@jonax1018]

Thanks 👍👍👍

[@HaseebElectronics]

best regards

[@atif7777]

Hi thanks for your videos which are very very informative. I have one question. I am trying to troubleshooting a pcb for treadmill (model YJ-004). Do i need to desolder the optocoupler(EL817) from the board to test it, since i am having strange voltage in forward as well as reverse bias? Thanks

[@neelavathir9253]

Very good for beginners

[@tiggydorset9041]

Thanks pal.

[@MuhammedJemal]

Thank you

[@heshamkatr2128]

Thanks a lots my good brother for your continuous help, i have question, i know opto is used for feed back, whatif I removed it and make short on emitter and collector to make sure there is no problem in hot area and oscillating transistor and ic ,,, is this work or something wrong

[@cristinmorandi2815]

Very good demonstration in to electronics. I have a question, is it possible to test a PC123 Optocoupler on a power supply board? Thank you.

[@LousyPainter]

Nice.

[@spacer00]

Am Using two multimeters for testing, with multimeter A in diode mode Voltage across pin l and 2 , is 1.616V , but with MULTIMETER B in Resistance mode with probes across pins 4 & 3 , its shows no reading.This his mean the optocoupler is working or dead

[@spacer00]

Help here

[@samirkumarganguly3690]

Very informative video , if you share your knowledge in led tv circuit I will be obliged.

[@hiralifestyle]

lk nice❤💖Lovely

[@syedrashidali]

Excellent

[@RixtronixLAB]

Nice video, thanks :)

[@HaseebElectronics]

best regards

[@tvbox8478]

👌 👍 ✋

[@HaseebElectronics]

best regards and special thanks

[@lucasrocha4329]

I did use a led tester ( diode) and multimeter in photo-transistor. When led tester was turned on, resistance in the other side fell to 100 ohms.

[@21thTek]

very simple complicated test .....

[@wadib3eed7]

I want a method to test optocoupler on circuit without removing from it. Do you know how ? some types like HCPL-7860 how to test it on circuit ? some inverters and servo drivers have some of these optocouplers. But pc817 is easy and simple one to set.

[@rmjnm]

It's great.

[@JuanCarlosViellar]

Maestro puedo probar octocoplador Smd de la misma manera

[@erdaler1682]

Aleykümselam.. Thank you very useful videos..

[@pierre7523]

Hello, thanks for the interesting instructions. I would like to ask if you can help to understand one circuit that I have for a power supply? I would be glad to have your assistance. I can pay you if needed. Thanks.

[@nadeemanis45]

awsome

[@syednadeem8261]

Please explain How to make with Tny 280pn primary volt 110 to 300 volt AC and secondary 12 volt 2 amp out put

[@directsystems2225]

bro i did as you said. i have two multimeter, 1 meter connected diode mode pin 1 and 2, another meter connected to pin 3 and 4, the second meter showing me 500 OHms. i checked with 2 optocoupler, the same result. is that 500 ohms okay or failed? Thank you

[@telescuaurel3175]

🎉💗👍

[@mipad6105]

Selâm my frend My multimeter is showing me around 500 ohm ! İs this normal?

[@RongRoom-h4c]

Sir, or else guid us for Transformer,smps step down transformer (220v to 12v)

[@andreyace8768]

👍👍👍👍!

[@chanderparmar9709]

Sir i have need led lcd courses in hindi

[@afzalhusain461]

Sir, aap Ahuja Amplifier repair nahi karte hai kya, KZbin par koi bhi achha KZbinr nahi hai jo achhe se bata paaye, sir aap bata paaye, to bahut meharbani hogi

[@aliyavuz9792]

There is no Turkish subtitle option in some of your videos, so we cannot benefit from it, I would appreciate it if you add it, may God increase your knowledge

[@HaseebElectronics]

welcome brother i add subtitles for my every video, just video is pending. today i will add to this video as well. my all latest videos are translated

[@gjergjkastro9404]

Hello! Thank you very much for sharing your knowledge with us and for all your effort doing those videos. If the resistance is 4kOhm between pin nr 3 and 4 when we connect correctly in pin 1 and 2 in diode mode a second multimeter this value at 4kOhm is acceptable? Just as value is acceptable? Thank you in advance

[@nafez3945]

Thank you

[@HaseebElectronics]

You're welcome