A PFC boost converter with reduced switching losses operating at a fixed switching frequency | IEEE Conference Publication | IEEE Xplore

A PFC boost converter with reduced switching losses operating at a fixed switching frequency


Abstract:

A single-phase fixed-frequency operated power factor correction circuit with reduced switching losses is proposed. The circuit uses the combination of a boost converter w...Show More

Abstract:

A single-phase fixed-frequency operated power factor correction circuit with reduced switching losses is proposed. The circuit uses the combination of a boost converter with an added clamp-switch, a pulse wave shaping circuit, and a standard control IC to discharge the transistor's output capacitance prior to its turn-on. In this way, a very low-complexity control circuit implementation to reduce switching losses or even achieve complete zero-voltage switching without additional sensors is possible. Moreover, this operation method is achieved at a constant switching frequency, possibly simplifying the design of the EMI filter and the converter's inductor. Experimental test results for a 100 W prototype converter are presented to validate the feasibility of the proposed operating method and corresponding circuit structure.
Date of Conference: 05-09 September 2022
Date Added to IEEE Xplore: 17 October 2022
ISBN Information:
Conference Location: Hanover, Germany

References

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