{1145} Optocoupler Current transfer ratio CTR

In this video number {1145} Optocoupler Current transfer ratio CTR . I explained current transfer ratio CTR in optocouplers. What is Current Transfer Ratio (CTR)? Current Transfer Ratio (CTR) is a ratio of the current to the output collector and input forward current and is represented in a percentage. CTR is mainly characterized in analog opto-emulator or optocoupler devices. if we apply input forward current to the LED and apply voltage to the collector-emitter, the output collector current can be measured. Current transfer ratio is a parameter, that is similar to the DC current amplification ratio of a transistor beta or (hFE) and is expressed as a percentage indicating the ratio of the output current (IC) to the input current (IF). CTR(%) = (IC/IF) x 100 You are Invited to Join Haseeb Electronics https://www.youtube.com/channel/UCamuZ8n1PwdZpzxV32b1l_w/join Please check other videos SMPS no output https://youtu.be/GFocIG2PM78 SMPS step by step repair tutorial https://www.youtube.com/watch?v=OwmN-N8kgHw How to download circuit diagram, service manual https://www.youtube.com/watch?v=vH5nkH1BSnw Transistor, IGBT, MOSFET equivalent https://www.youtube.com/watch?v=y_oUqyu0G14 Broken plastic gear repair https://www.youtube.com/watch?v=NlG5RAtEG3A You can Follow me on :- Instagram: https://www.instagram.com/haseebelect/ Facebook: https://web.facebook.com/profile.php?id=100090330195994 #optocoupler #tctr #current_transfer_ratio #electronics