{477} TLP250 Optocoupler Test Circuit, Pinout, How to Test TLP250 Optocoupler

in this video i explained TLP250 Optocoupler Test Circuit, Pinout, How to Test TLP250 Optocoupler IC. tlp250 is most commonly used in inverter. dc inverter ac, vfd, vvd, treadmill circuits, to drive igbt and power mosfet gate drives. it is used in gate drive circuit to provide isolation between low power signal source (microcontroller) and high power section. i explained the datasheet, pinout and its parameters. i also demonstrated hoe to test tlp250 using multimeter
what is optocoupler,
how to test TLP250,
TLP250 datasheet,
TLP250 test circuit,
TLP250 explained,

[aliali-etxh]

good teacher at youtube..full learning ..thank you big brother..

[ShineSakshi]

Wonderful tutorial
You are amazing in your job Respected Brother
May Almighty Bless you always 🙏💐

[MarkPrince]

Thank you very much for the very informative video's

Best regards from Philippines 🇵🇭

[alfredterprey]

Wow 😢😢😢😢 you are just the best on the Internet ❤❤❤❤❤❤❤❤❤❤❤❤ best teacher. Even if we don't get it we rewatch thats all.

[Ayeshainthekitchen]

Assalamualaikum dear brother. MashaAllah excellent and informative tutorial. Keep sharing your valuable content. Allah bless you

[qualitylifestyle]

THANK YOU FRIEND FOR EXPLAINED IT IS THE GOOD WAY TO KNOW IT BETTER .HAVE A GREAT DAY.🧡🧡🧡

[HarlavanisPanagiotis]

Excellent upload dear friend, have a happy time!

[td]

An excellent tester to add to the electronics bench. Testing optocouplers has always been a pain to me, because there are two separate devices inside the one package. So, you must test two different functions, at once. I usually only see the single transistor type. So, I am going to configure your circuit to test both single and dual transistor types. Thanks for the great idea. This circuit will bring some relief to me. lol.

[kiisofttech]

Very useful information... about opto tlp250.. thank you...

[vijayakumarkumar]

Very good and useful information sir thanks for sharing this knowledge to us

[sugameltpastriescoffee]

Thank you for the English videos, tremendously helpful

[rajeshsethuraman]

Hi sir.
thank you for the video.
How the LED is glowing without supply?
whether the capacitor is already charged.

[garypoplin]

1:54 - where can I get a copy of the calculator you’re using? I particularly like the digit grouping (even for decimals I’ve seen in other videos of yours. Thank you for your help.

[sonajipavhane]

Super sir, . Dear sir, I have one request can you share ic 2844 how to generate .in vfd .this is mostly important part in my job.

[td]

I had commented that I was going to breadboard your circuit and I am glad that I did. I did not observe the same illumination pattern as you. I did double check my breadboard connections and I am confident that I had made them correctly.

You used LEDs of different colors (meaning different Vf.) I used white LEDs (meaning the same Vf) and 1K current-limiting resistors. You observed one color on and one off. Then you pressed the button and your LEDs swapped illuminations. My illuminations were both LEDs illuminated (without the button being pressed) and only one LED (your D1) illuminated, when I pressed the button.

This makes sense, in relation to your schematic... While D2 and D1 share a connection to Pin 6, they are in series with one another, from +12V to GND, as you have the schematic drawn.

If I understand correctly how the circuit works, D2 relies on the resistance of D1 and R3 to cause the power to take the path of least resistance through the PNP transistor to ground. Maybe the resistance provided by your different color LEDs was sufficient to cause the correct path to ground, where my circuit, using the same color LEDs, did not provide a sufficient difference in resistance? I do not know, because I am not as good at engineering as you are... yet... lol. Or, maybe you wired your prototype slightly differently than your schematic?

I do understand that the NPN transistor acts as a normally closed switch and that the PNP transistor acts as a normally open switch. When power is applied to their bases, by way of the internal LED and photo-receiver, the NPN transistor opens and the PNP transistor closes.

Would you, please, make another video about the operations of the circuit and the paths the power takes, for the different button states? You can use the different colored pencils trick, again. LOL Anyway, I am learning lots and having great fun. All thanks to you!

[cipry]

I see that you use common ground for diode and transistor at pin 3 and 5, I have also some tlp250 and they only work with 2 separate grounds from separate power supplies. Why?

[mohamedantri]

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[YoYoNoTech]

so beautiful so nice mashaallah bhaijaan

[MostafaMahmoud-tsew]

God bless you my best teacher.. thanks for sharing informative videos..i want to understand the speed control circuit for indoor fan unit of air conditioner by mcu, optocoupler and triac.. thanks again

[HOANGHUYHUNGHP]

Please ask: TLP250 and IR2113 ... can control how many MosFet ... or IGBT ... if I connect them in parallel .... Hope to hear from you soon.
Thank you very much ... Wish you good health .