ailee Posted May 12, 2022 Share Posted May 12, 2022 Hi guys, I have couple of question : 1.) by providing isolation to control IC by pulse xformer, then how the control IC is powered at the first time it powered? since the auxiliary windings doesn't have a voltage at that initial time 2.) do we need more winding to drive the high side mosfet? since we know that the voltage at the gate should be Vth+Main DC Voltage Thank you Link to comment Share on other sites More sharing options...
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