{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

[@HarlavanisPanagiotis]

Excellent job dear friend, have a happy weekend 😊

[@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

[@nandakumar621]

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

[@kmhovlog6185]

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

[@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

[@kuriakosemathew1854]

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

[@gopalarao8578]

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

[@afayimo]

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

[@HaseebElectronics]

it is my pleasure

[@eliasbourozrrrs8585]

Thank you dear, greetings from Greece

[@HaseebElectronics]

best regards

[@drameriemmanuel1187]

Love your teaching

[@HaseebElectronics]

It's my pleasure to share.

[@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

[@lupojacobo9892]

Shukriya Maestro. God bless you and your family

[@HaseebElectronics]

So nice of you

[@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?"

[@amrreda1110]

Informative video. Easy circuit to test.

[@HaseebElectronics]

best regards

[@arunkumar-bh2dp]

very clear simple way of testing.

[@zakiservis211]

Ok menyimak terimakasih atas berbagi informasi!

[@HelgiThorisson]

Great information as always.

[@HaseebElectronics]

it is my pleasure

[@maissathiaw963]

you are the best many thanks my friend

[@chanderparmar9709]

Sir you have brilliant knowledge thanks🙏

[@alazizelectronic7618]

Excellent video 📸 to Sir 😊

[@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?

[@AbdulMomenZargar60]

Salaam Bhai Saab Good Luck

[@Versatiledani]

Good informative video

[@HaseebElectronics]

thanks a lot

[@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?

[@FishingNOutdoorFun]

wow very well explained

[@HaseebElectronics]

best regards and special thanks

[@thehooplabs]

Nice sharing bro

[@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

[@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.

[@iosifferencz5432]

THANKS for userul information

[@rolanddejesus8685]

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

[@electroniquepassion]

Excellent 👏👏

[@pravinpadhiyar2]

Very nice video sir

[@susantaatha6468]

Excellent 👍

[@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.

[@jefazonet]

Excelente video

[@samirkumarganguly3690]

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

[@mahendrababununna5440]

Excellent Sir ❤️

[@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.

[@rozikhan6202]

Masha Allah

[@jonax1018]

Thanks 👍👍👍

[@HaseebElectronics]

best regards

[@neelavathir9253]

Very good for beginners

[@tiggydorset9041]

Thanks pal.

[@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.

[@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

[@MuhammedJemal]

Thank you

[@hiralifestyle]

lk nice❤💖Lovely

[@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.

[@RixtronixLAB]

Nice video, thanks :)

[@HaseebElectronics]

best regards

[@syedrashidali]

Excellent

[@JuanCarlosViellar]

Maestro puedo probar octocoplador Smd de la misma manera

[@nayanjagirdar8408]

👌👌👌👍

[@LousyPainter]

Nice.

[@mipad6105]

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

[@ELECTROLATIF-s7o]

Mashallah genius

[@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

[@syednadeem8261]

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

[@rmjnm]

It's great.

[@21thTek]

very simple complicated test .....

[@nadeemanis45]

awsome

[@tvbox8478]

👌 👍 ✋

[@HaseebElectronics]

best regards and special thanks

[@RongRoom-h4c]

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

[@erdaler1682]

Aleykümselam.. Thank you very useful videos..

[@telescuaurel3175]

🎉💗👍

[@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

[@andreyace8768]

👍👍👍👍!

[@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