中国电机工程学报2012，Vol.32Issue(6)：106-112,7.
一种新型临界模式控制的变频软开关全桥DC/DC变流器
A Novel Variable Frequency Soft Switching Full-bridge DC/DC Converter With Critical Continuous Mode Control
摘要
Abstract
The Full Bridge DC/DC converter with primary side energy storage inductor（FB-PESI） is not suitable for the applications with wide input voltage range because of its discontinuous conduction mode（DCM） with traditional constant switching frequency,phase-shift（PS） control strategy.This paper proposed a novel variable frequency（VF） PWM controlled FB-PESI DC/DC converter（VFFB-PESI）,which not only reserved the advantages of PSFB-PESI converter,such as,wide soft-switching range,high frequency and high power density,but also can always operate in the critical continuous operation mode（CrCM）,and obtain relatively high conversion efficiency over a wide input voltage range.The losses evaluation and optimal design procedure are also included.A 300 Watts prototype with 200~400 V input and 12 V output is built up.Experimental results verify the operating principle of the proposed converters.关键词
全桥DC/DC变流器/变频PWM控制/软开关/临界导通模式/高效率/优化设计Key words
full-bridge DC/DC converter/variable frequency PWM control/soft switching/critical continuous control/high efficiency/optimal design分类
信息技术与安全科学引用本文复制引用
孟培培,吴新科,赵晨,张军明,钱照明..一种新型临界模式控制的变频软开关全桥DC/DC变流器[J].中国电机工程学报,2012,32(6):106-112,7.基金项目
国家自然科学基金项目(50907061 51007081) （50907061 51007081）
浙江省公益技术项目(2010C311111) （2010C311111）
