High-performance front-end rectifier system for telecommunication power supplies

被引：12

作者：

Choi, W. -Y. ^{[1
]}

Kwon, J. -M. ^{[1
]}

Kwon, B. -H. ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang 790784, Kyungbuk, South Korea

来源：

IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS | 2006年 / 153卷 / 04期

关键词：

Electric rectifiers;

D O I：

10.1049/ip-epa:20050257

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 high-performance front-end rectifier system is proposed for telecommunication power supplies. The proposed system consists of a boost converter for power-factor correction (PFC) and a asymmetrical half-bridge zeta converter for DC-DC power conversion. A cost-effective implementation for a continuous-conduction-mode boost converter is proposed for a PFC circuit. With a simple passive approach, the proposed PFC circuit minimises switching losses by reducing the reverse-recovery current. The asymmetrical half-bridge zeta converter operates under zero-voltage switching for the power switches and its output diode commutates with zero-current switching. The proposed front-end rectifier system is analysed and its design considerations are discussed. Experimental results for a 300 W prototype at a constant switching frequency of 100 kHz are presented to verify the analysis and to show the performance of the proposed system.

引用

页码：473 / 482

页数：10

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