A detailed analytical analysis of a passive resonant snubber cell perfectly constructed for a pulse width modulated d.c.-d.c. buck converter

被引：7

作者：

Bodur, H ^{[1
]}

Bakan, AF ^{[1
]}

Baysal, M ^{[1
]}

机构：

[1] Yiliz Tech Univ, TR-80750 Istanbul, Turkey

来源：

ELECTRICAL ENGINEERING | 2003年 / 85卷 / 01期

关键词：

soft switching; zero voltage switching; zero current switching; snubber cells; resonant passive snubber cells;

D O I：

10.1007/S00202-002-0141-7

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：

In this paper, a detailed analytical analysis of a passive resonant snubber cell that is perfectly constructed for a pulse width modulated (PWM) d.c.-d.c. buck converter is proposed. This snubber cell provides a larger overall efficiency and a wider load range than most of the active snubber cells presented previously, and has a simple structure and low cost. The operation principles and a detailed steady-state analysis of a PWM buck converter implemented with this snubber cell are presented. The theoretical analysis is verified with a prototype of a 5-kW and 50-kHz insulated gate bipolar transistor-(IGBT)-PWM buck converter. All of the semiconductor devices in the converter operate under soft switching conditions. Additionally, at 80% output power, the overall efficiency of the proposed soft switching converter is increased to about 98% from the value of 91% in its counterpart hard switching version.

引用

页码：45 / 52

页数：8

共 12 条

[1]

BODUR H, 1999, ELECO 99 INT C EL EL, V2, P440

[2] Soft switching active snubbers for DC/DC converters [J].