一種高功率因數反激AC/DC變換器

摘要：本文簡要分析了電力電子設備功率因數低的主要原因；提出了一種高頻電荷泵功率因數校正 AC/DC變換器，詳細論述了該電路的工作原理，對電路的驅動芯片TDA16846進行了簡單的介紹；最后對該變換器電路進行了仿真和試驗。研究結果表明：該電路的功率因數高、諧波含量小，能滿足諧波標準IEC1000-3-2的要求，是一種結構簡單、性能優良的變換器。 敘詞：電力電子；功率因數校正；電荷泵 Abstract：The reasons of low power factor in the electronic and power equipments are simply analyzed in this paper. A high frequency charge pump power-factor-correction(PFC) AC/DC converter is proposed. The principle of the circuit are discussed. The chip of TDA16846 was simply introduced. The simulation and experimental results show that unity power factor and low THD can be achieved, which proves that the performance of the converter is excellent. Keyword：electronics Power；Power-Factor-Correction；charge pump；