Active clamped ZVS forward converter with soft-switched synchronous rectifier for high efficiency, low output voltage applications

被引：51

作者：

Açik, A

Çadirci, I

机构：

[1] TUBITEK Bilten Informat Technol & Elect Res Inst, TR-06531 Ankara, Turkey

[2] Metu Elect & Elect Engn Dept, TR-06531 Ankara, Turkey

来源：

IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS | 2003年 / 150卷 / 02期

关键词：

D O I：

10.1049/ip-epa:20030151

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：

The analysis, design, and implementation of an active clamped ZVS forward converter equipped with a soft-switched synchronous rectifier (ACFC-SR), proposed for high-efficiency low output voltage DC-DC converter applications, is presented. The converter efficiency is maximised due to soft switching of the main, active clamp, synchronous rectifier, and freewheeling MOSFET switches. The operating principles of the ACFC-SR are analysed in detail, and the converter performance is compared with that of alternative forward converter schemes employed in low output voltage DC-DC converters, in view of their power conversion efficiency. Experimental results are presented for a 50 W ACFC-SR converter with a DC input voltage of 48 V, an output voltage of 5 V, and operating at a switching frequency of 120 kHz. In general, good agreement is observed between the theoretical and experimental results.

引用

页码：165 / 174

页数：10

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