Light-Load Efficiency Improvement in Buck-Derived Single-Stage Single-Switch PFC Converters

Single-stage single-switch ac/dc converters with power factor correction (PFC) generally have higher power losses under a light-load condition, as compared to that of the two-stage approach, due to the sharing of a common power transistor such that the PFC stage cannot be switched OFF separately to...

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Veröffentlicht in:	IEEE transactions on power electronics 2013-05, Vol.28 (5), p.2105-2110
Hauptverfasser:	Lu, D. D-C, Shu-Kong Ki
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Capacitors Circuit properties Connection and protection apparatus Diodes Electric currents Electric, optical and optoelectronic circuits Electrical engineering. Electrical power engineering Electronic circuits Electronics Exact sciences and technology Light-load efficiency Logic gates MOSFET circuits power consumption Power electronics, power supplies Power factor correction Power supply Pulse width modulation Signal convertors single-stage Switches Switching loss Switching, multiplexing, switched capacity circuits Topology Transistors Voltage control
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