CPC H02M 3/33592 (2013.01) [H02M 1/44 (2013.01)] | 20 Claims |
1. A controller for a flyback converter with a high-side synchronous rectifier switch transistor, comprising:
an auxiliary capacitor;
a power supply capacitor for storing a power supply voltage for the controller; and
a plurality of switches having a first switching state in which the auxiliary capacitor is coupled to a charge source and the power supply capacitor is isolated from the auxiliary capacitor and having a second switching state in which the auxiliary capacitor is isolated from the charge source and coupled to charge the power supply capacitor.
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