https://jestineyong.com Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Fri, 20 Apr 2012 16:30:25 +0000 en-US hourly 1 https://wordpress.org/?v=5.4.19 https://jestineyong.com/how-come-there-are-so-many-optoisolator-ics-in-smps/ https://jestineyong.com/how-come-there-are-so-many-optoisolator-ics-in-smps/#comments Fri, 20 Apr 2012 16:30:25 +0000 https://www.jestineyong.com/?p=4027 It is common to see 1 or 2 optoisolator ICs in a switch more power supply board (SMPS) but what about 3 or even 4 opto ICs in the power supply board? As far as I know those Opto ICs are use for over voltage and over current protection, regulation/feedback and also to use as […]

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