{1403} Optocoupler Function & CTR Explained | Current Transfer Ratio Calculation in Detail

In this video number {1403} Optocoupler Function & CTR Explained | Current Transfer Ratio Calculation in Detail. In this detailed tutorial, Muhammad Ashraf from Haseeb Electronics explains the optocoupler (opto isolator) in full depth. Learn the basic working principle, function, and internal structure of an optocoupler. Understand how the CTR (Current Transfer Ratio) defines its performance, and how to calculate CTR practically with real circuit measurements. We also demonstrate how an optocoupler is used for feedback and voltage regulation in SMPS power supplies. Chapters / Topics Covered: Optocoupler basics and function How optocoupler works in SMPS feedback CTR concept explained CTR calculation formula with example Testing optocoupler using multimeter Applications in power supply regulation 📺 Watch till the end to fully understand how optocouplers provide electrical isolation between low-voltage and high-voltage sections. You are Invited to Join Haseeb Electronics https://www.youtube.com/channel/UCamuZ8n1PwdZpzxV32b1l_w/join You may check other videos :- Replacing Heating Element in WELLER DSX80 Desoldering Gun https://youtu.be/v7nuwG5VCpg Vestel Power supply working and troubleshooting https://youtu.be/4pxQYpZ4fGg Electric steam iron repair https://youtu.be/Er-74e1ZpJk Reverse polarity & Overvoltage effect on Polarized capacitor https://youtu.be/lkFsLpECjSA IGBT Inverter welding machine repair https://youtu.be/Jvt3VEmPDQs SMD zener diode Identification https://youtu.be/Q0uxM3YbSAs measure Low value resistor Using NULL / RELATIVE function https://youtu.be/PerpzIcdgkE Reverse polarity & Overvoltage effect on Polarized capacitor https://youtu.be/lkFsLpECjSA Electric Room heater fan repair - not providing hot air https://youtu.be/X18SbrSBJZI Testing Darlington transistor https://youtu.be/5Gv4dIwG0KA Inercomp PT300 Truck weight scale repair https://youtu.be/QOTZEuatU1Q You can Follow me on :- Instagram: https://www.instagram.com/haseebelect/ Facebook: https://web.facebook.com/profile.php?id=100090330195994 #Optocoupler #CTR #ElectronicsTutorial #SMPSVoltageRegulation #OptoIsolator #HaseebElectronics 00:00:00 what is an optocoupler / opto-isolator 00:01:40 why optcoupler used in smps switch mode power supplies 00:04:15 optocpupler structure and function explained 00:08:00 ctr current transfer ration explained and calculation 00:14:00 how to design test circuit to test optcoupler and calculate CTR