华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (1): 57-61.
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尹华杰 李意
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Yun Hua-jie Li Yi
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摘要: 对一种由非平衡半桥电路构成的新型单级AC/DC功率因数校正(PFC)变换器的工作模态及性能进行了理论分析,采用SIMetrix数模电路仿真软件进行了数字仿真,并在样机上进行了试验.仿真及试验结果表明,该电路工作于不连续导电模式,具有很好的功率因数校正性能以及软开关效果,因此有很高的功率因数及效率.
关键词: 非平衡半桥变换器, 软开关, 功率因数校正, 不连续导电模式
Abstract:
The operation mode and characteristics of a single-stage AC/DC PFC (Power Factor Correction)converter with an asymmetrical half-bridge topology are analyzed in this paper.The numerical simulation is then carried out by using the SIMetrix software,followed by an experiment of a prototype converter.Th e simulated and experi-mental results show that the proposed single-stage PFC converter works in discontinuous conduction mode(DCM) and is of excellent PFC and soft-switching performances with very high power factor and efficiency.
Key words: asymmetrical half-bridge converter, soft switching, power factor corection, discontinuous conduction mode
尹华杰 李意. 一种单级DCM高功率因数非平衡半桥变换器[J]. 华南理工大学学报(自然科学版), 2005, 33(1): 57-61.
Yun Hua-jie Li Yi. A DCM Single-Stage High Power Factor Converter Based on Asymmetrical Half-Bridge Circuit[J]. Journal of South China University of Technology (Natural Science Edition), 2005, 33(1): 57-61.
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https://zrb.bjb.scut.edu.cn/CN/Y2005/V33/I1/57