电工技术学报2016，Vol.31Issue(11)：41-50,10.
基于临界模式Boost电路与LLC谐振电路的单级交直变换器
A Single-Stage AC-DC Converter Based on Boundary Conduction Mode Boost Circuit and LLC Resonant Converter
摘要
Abstract
A single-stage AC-DC converter based on the boundary conduction mode( BCM )boost circuit and the LLC resonant circuit is proposed in the paper. The input voltage is divided into two parts,each of which forms a BCM boost circuit by sharing one switch of the LLC resonant circuit. Because of the integration,the proposed AC-DC converter is with less components and low cost. At the same time,the boost circuit works in the BCM mode so that the power factor correction function is realized. The integration of the switches does not affect the soft-switching characteristics of the half bridge LLC resonant circuit,so that the converter switching losses is decreased and the converter efficiency is increased. A 100 W prototype is built to prove the analysis,the power factor(PF)is 0. 975,the total harmonic distortion(THD)is 21. 5% satisfying the IEC 63000—3—2 standard, and its efficiency is 90. 8%.关键词
单级/交直变换器/临界模式/LLCKey words
Single-stage/AC-DC converter/boundary conduction mode/LLC分类
信息技术与安全科学引用本文复制引用
管乐诗,王懿杰,王卫,张相军,徐殿国..基于临界模式Boost电路与LLC谐振电路的单级交直变换器[J].电工技术学报,2016,31(11):41-50,10.基金项目
国家自然科学基金（51407044）和国家自然科学基金重点项目（51237002）资助。 （）
