电器与能效管理技术Issue(7)：42-49,8.DOI:10.16628/j.cnki.2095-8188.2024.07.006
断续模式下的半无桥Boost PFC变换器设计
Design on Semi-Bridgeless Boost PFC Converter in Discontinuous Conduction Mode
摘要
Abstract
The semi-bridgeless Boost power factor correction(PFC)converter is favored for its low risk of direct conduction in the bridge arm,making it ideal for high-reliability applications like military and medical fields.Operating in discontinuous conduction mode(DCM),this converter offers advantages such as zero-current turn-off and diode reverse recovery elimination.Addressing the issue of current distortion and reduced power factor caused by excessive input voltage under traditional control methods,a variable duty cycle control strategy based on constant duty cycle control is elaborated,enhancing the power factor across the entire input range.Additionally,to solve the challenges associated with traditional semi-bridgeless Boost PFC converters,such as large system volume and board footprint due to dual power inductors,an integrated magnetic coupling approach is adopted to enhance power density.Finally,a 150 W semi-bridgeless Boost PFC converter based on fully integrated magnetic coupling is constructed and experimentally validated for its efficacy.关键词
半无桥Boost PFC/电流断续模式/变占空比控制/磁集成Key words
semi-bridgeless Boost PFC/discontinuous conduction mode/variable duty cycle control/magnetic integration分类
信息技术与安全科学引用本文复制引用
黄康,毛行奎..断续模式下的半无桥Boost PFC变换器设计[J].电器与能效管理技术,2024,(7):42-49,8.基金项目
国家自然科学基金项目(51207025,52107183) （51207025,52107183）
