High-Efficiency Single-Phase Full-Bridge Soft-Switching Rectifier

WANG Qiang; CHEN Jun; WANG Tian-shi; LIU Xiao-qin

doi:10.3969/j.issn.0372-2112.2020.06.028

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High-Efficiency Single-Phase Full-Bridge Soft-Switching Rectifier

更新时间：2025-07-16

- High-Efficiency Single-Phase Full-Bridge Soft-Switching Rectifier
- Acta Electronica Sinica Vol. 48, Issue 6, Pages: 1244-1248(2020)
- 作者机构：
  
  1. 辽宁石油化工大学信息与控制工程学院,辽宁,抚顺,113001
  2. 辽宁石油化工大学石油化工过程控制国家级实验教学示范中心,辽宁,抚顺,113001
  3. 辽宁石油化工大学信息与控制工程学院,辽宁,抚顺,113001
  4. 辽宁石油化工大学石油化工过程控制国家级实验教学示范中心,辽宁,抚顺,113001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2020.06.028
  CLC： TM464
- Published Online：25 June 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
WANG Qiang, CHEN Jun, WANG Tian-shi, et al. High-Efficiency Single-Phase Full-Bridge Soft-Switching Rectifier[J]. Acta Electronica Sinica, 2020, 48(6): 1244-1248.
DOI：

WANG Qiang, CHEN Jun, WANG Tian-shi, et al. High-Efficiency Single-Phase Full-Bridge Soft-Switching Rectifier[J]. Acta Electronica Sinica, 2020, 48(6): 1244-1248. DOI： 10.3969/j.issn.0372-2112.2020.06.028.

摘要

单相全桥整流器工作在硬开关状态时，随着开关频率和输出功率的增大，开关损耗会显著增大，影响整流器效率的提高.为解决这一问题，提出了一种单相全桥软开关整流器，在整流器处于死区状态时，将要开通的主开关并联的谐振电容的电压能减小至零，主开关动作时能完成零电压软切换，双向辅助开关动作时能完成零电流软切换.分析了整流器的换流过程，实验结果表明主开关和辅助开关完成了软切换动作.因此，该单相全桥软开关整流器在高开关频率下能实现高效率运行.

Abstract

When single-phase full-bridge rectifier works in the hard-switching state

with the increasing of switching frequency and output power

the switching loss will increase significantly

which has negative influence on the efficiency of the rectifier. In order to solve this problem

a single-phase full-bridge soft-switching rectifier is proposed. When the rectifier is in the dead state

the voltage across the resonant capacitor in parallel with the main switch can decrease to zero via the resonance of the auxiliary circuit. The main switch can achieve zero-voltage switching

and the bidirectional auxiliary switch can achieve zero-current switching. The commutation process of the rectifier is analyzed. The experimental results show that the main switch and auxiliary switch can achieve soft-switching. Therefore

the single-phase full-bridge soft-switching rectifier can achieve high-efficiency operation with high switching frequency.

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