A Fully Regulated Dual-Output DC-DC Converter With Special-Connected Two Transformers (SCTTs) Cell and Complementary Pulsewidth Modulation-PFM (CPWM-PFM)

被引：39

作者：

Chen, Yu ^{[1
]}

Kang, Yong ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Wuhan 430074, Hubei, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2010年 / 25卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Complementary pulsewidth modulation-PFM (CPWM-PFM); dc-dc converter; dual output; special-connected two transformers (SCTTs); zero-voltage switching (ZVS); MULTIPLE; TOPOLOGY;

D O I：

10.1109/TPEL.2009.2038160

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A dual-output dc-dc converter based on the complementary pulsewidth modulation is proposed to overcome the cross-regulation problem between the outputs. Using a special-connected two transformers cell, one operational period is divided into two complementary parts. One output branch gets the pulsewidth and is regulated by the duty cycle; the other output branch gets the complementary pulsewidth and is regulated by the PFM. Only one full bridge and several passive components are needed, but both the two outputs have the fully regulated abilities even in the no-load situation. Moreover, a full zero-voltage-switching (ZVS) range is achieved in all the switches without auxiliary circuits. Therefore, the proposed topology has compact structure, high switching frequency, high-power density, and high efficiency. The operation principle, ZVS conditions, and design considerations are presented in the paper. The analysis is verified by a 300V input, and 24 V/10 A and 48 V/5 A outputs prototype.

引用

页码：1296 / 1309

页数：14

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