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A single stage single switch power factor correction converter

K. Jirasereeamornkul, Y. Roungraungpalangkul, K. Chammongthai

Open publisher page 4 citations

Abstract

The flyback-flyback single stage converter operated in DCM+DCM is easy to control bus voltage, but hard to control switch stress. We propose a new converter having low voltage stress on its switch. The flyback converter is simplified into buck-boost form. Also, the PFC flyback transformer is replaced by an inductor. The switches of both PFC and DC/DC stages are merged, and a diode is used to force the direction of power flow. A 30 W prototype is built to evaluate the performance.

About this research paper

What this paper is about

The flyback-flyback single stage converter operated in DCM+DCM is easy to control bus voltage, but hard to control switch stress. We propose a new converter having low voltage stress on its switch. The flyback converter is simplified into buck-boost form. Also, the PFC flyback transformer is replaced by an inductor. The switches of both PFC and DC/DC stages are merged, and a diode is used to force the direction of power flow. A 30 W prototype is built to evaluate the performance.

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OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The flyback-flyback single stage converter operated in DCM+DCM is easy to control bus voltage, but hard to control switch stress. We propose a new converter having low voltage stress on its switch. The flyback converter is simplified into buck-boost form. Also, the PFC flyback transformer is replaced by an inductor. The switches of both PFC and DC/DC stages are merged, and a diode is used to force the direction of power flow. A 30 W prototype is built to evaluate the performance.

Key concepts: Flyback converter, Flyback transformer, Flyback diode, Buck–boost converter, Buck converter, Forward converter, Power factor, Boost converter

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