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单开关DC/DC变换器的一种软开关实现策略 被引量：29

STRATEGY FOR SINGLE SWITCH DC/DC CONVERTERS TO ACHIEVE SOFT SWITCHING
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摘要 该文提出了一种适用于Buck、Boost、Buck-boost、Flyback等各种单开关DC/DC拓扑的软开关实现策略,即同步整流加上电感电流反向的策略。根据两个开关管实现软开关的条件不同,提出了强管和弱管的概念,给出了满足软开关条件的设计方法。一个24V输入,40V/2.5A输出,开关频率为200KHz的同步Boost变换器样机,进一步验证了上述软开关实现策略的正确性,其满载效率达到了96.9%。 Paper presents a strategy for single switchDC/DC converters such as buck, boost, buck-boost, and flyback to realize soft switching. Soft switching can beachieved if synchronous rectifier is applied and current through inductor is designed to be reverse in every period. According to different soft switching conditions, the conception of strongswitch and week switch is presented. Design considerations of soft switching condition for strong switch and week switch are also proposed. A 200kHz prototype of 24V input, 40V output,whose efficiency is 96.9% is built to verify the strategy.
作者 顾亦磊 陈世杰 吕征宇 钱照明
机构地区 浙江大学电气工程学院
出处 《中国电机工程学报》 EI CSCD 北大核心 2004年第11期130-133,共4页 Proceedings of the CSEE
基金 国家自然科学基金项目(50237030ZD)~~
关键词 软开关 DC/DC变换器 开关管 开关频率 BOOST变换器 同步整流 电感电流 样机 拓扑 正确性 Power electrcnis Electric Single switch converters Soft switching Synchronous rectifier
分类号 TM464 [电气工程—电器] TN624 [电子电信—电路与系统]
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参考文献8

  • 1周林泉,阮新波.一种新颖的ZCZVS PWM Boost全桥变换器[J].中国电机工程学报,2003,23(11):90-94. 被引量：29
  • 2吴洪洋,何湘宁.一种新颖的三电平软开关功率因数校正电路[J].中国电机工程学报,2002,22(10):22-27. 被引量：29
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二级参考文献9

  • 1吴洪洋.多电平变换器及共相关技术研究[M].杭州:浙江大学,2001..
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  • 9冯波,吴国忠,徐德鸿,陈刚.一种新型有源箝位Boost变换器[J].中国电机工程学报,2002,22(10):61-66. 被引量：15

共引文献54

同被引文献290

引证文献29

二级引证文献337

中国电机工程学报
2004年 第11期

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