在低功率应用中，为了减少器件和成本，单级功率因数校正(PFC)技术越来越受到人们的关注。
To reduce the component counts and the cost, the single-stage power factor correction (PFC) techniques have attracted more and more attention.
通过实验结果表明，单级功率因数校正装置可以实现较高的功率因数、较低的总谐波畸变，而且输出电压纹波小。
Experiment results showed that the correction device of power factor could realize high power factor, low harmonic distortion and low ripple of output voltage.
提出一种具有零电流关断(ZCS)的反激式单级功率因数校正(PFC)变换器。
A flyback converter with zero current switching (ZCS) resonant and power factor correct (PFC) is proposed.
提出了一种基于桥式逆变电路的新型单级功率因数校正变换器的电路拓扑。
This paper introduces a novel topology about single-stage PFC converter based on bridge inverter and analyzes its theory of operation.
现在国内外正在开发研究单级功率因数校正电路，具有很高的功率因数，且成本低。
Recently, internal and overseas investigators are developing single-stage PFC circuit, which has higher PF and lower price.
本文首先介绍了功率因数校正技术的基本原理和基本方法，对单级功率因数校正技术的现状进行了分析和对比。
Firstly this paper introduces the principles and methods of power factor correction technology, and single-stage power factor correction techniques are analyzed and compared.
本文首先介绍了功率因数校正技术的基本原理和基本方法，对单级功率因数校正技术的现状进行了分析和对比。
Firstly this paper introduces the principles and methods of power factor correction technology, and single-stage power factor correction techniques are analyzed and compared.
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