In DC voltage applications, the RC snubber network is typically wired across the relay contacts, whereas in standard AC ...

Critical conduction mode (CRM) boost power factor correction (PFC) converter is widely used in ac-dc power supplies to achieve high power factor. The switching frequency varies in a half-line cycle.

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Detailed analysis and modeling of the converter is presented. In such low-power applications, the power consumption of gate drive and control circuits should be minimal.