#225 How to Test Optocoupler OR Opto-Isolator 4N25GV, 4N35GV

in this video i discussed How to Test Optocoupler OR Opto-Isolator 4N25GV, 4N35GV
what is Optocoupler or Opto-isolator
function of optocupler
How to calculate series resistance for LED,
how to bias optocoupler or how to calculate biasing resistor for optocoupler
structure of opto isolator
how to test optocoupler using digital multimeter
pinout of optocoupler IC
use of optocouplerin SMPS switch mode power supply
Structure
Functional Description
Test Procedure
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How to Use Clamp Meter https://www.youtube.com/watch?v=IWcZ3N8LlRc&t=15s
Test Diode With Multimeter https://www.youtube.com/watch?v=Q1AmJZkSzAM
Check Resistance https://www.youtube.com/watch?v=mF1W_MU6jvM

How to Use Multimeter https://www.youtube.com/watch?v=-I-fJjzZmEs&t=4s

Circuit Diagram https://drive.google.com/open?id=1yNM3fdIJjzRfRLn5K1254tuKB0f7Dqu6

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Видео #225 How to Test Optocoupler OR Opto-Isolator 4N25GV, 4N35GV канала Haseeb Electronics