Hi Folks,
I've been learning about switch mode power supplies but for some reason I can't grasp how powering the IC's used to switch the mosfets is achieved. I'm working on a power supply for an LG TV which has lost power to the VCC of its 3 IC's so I'm having a little trouble tracking the problem down.
Could you please take a look at the schematic and guide me through what I'm doing wrong and explain the concept of how the IC's are powered. I know I'm missing the nail by a mile and I'm frustrated I can't grasp it.
Thanks for all your help
I've been learning about switch mode power supplies but for some reason I can't grasp how powering the IC's used to switch the mosfets is achieved. I'm working on a power supply for an LG TV which has lost power to the VCC of its 3 IC's so I'm having a little trouble tracking the problem down.
Could you please take a look at the schematic and guide me through what I'm doing wrong and explain the concept of how the IC's are powered. I know I'm missing the nail by a mile and I'm frustrated I can't grasp it.
Thanks for all your help
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