Step-up ZVS Full-Bridge Converter with Primary-Side Loss Reduction

被引：0

作者：

Hsieh, Hung-, I ^{[1
]}

Chang, Yeong-Sheng ^{[2
]}

机构：

[1] Natl Chiayi Univ, Dept Elect Engn, 300 Syuefu Rd, Chiayi 60004, Taiwan

[2] Etasis Elect Corp, Taipei, Taiwan

来源：

EPE: 2009 13TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, VOLS 1-9 | 2009年

关键词：

Step-up ZVS full-bridge converter; energy recovery circuit; DC bus;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

A step-up ZVS full-bridge (FB) converter with a primary-side energy recovery circuit (PERC) Is proposed. The PERC means can recover the power loss due to high spike current hiding in primary inductance when the phase-shift switching activates. High ringing currents occurring at the beginning of the two resonances each half-period can then be smoothly transferred to DC bus and restrain the resonant current profile from spike current, that provides normal operation for step-up mode conversion. High power efficiency up to 87%-97% is achieved for wide load range by PERC means, which improves efficiency over 3-5% than the conventional case. A practical 400W step-up ZVS FB converter with PERC is realized to assess the conversion performance and compare with the prior works.

引用

页码：5045 / 5051

页数：7

共 13 条

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