现代电子技术2024，Vol.47Issue(6)：119-123,5.DOI:10.16652/j.issn.1004-373x.2024.06.019
基于GaN器件的有源箝位正激变换器设计
Design of active clamp forward converter based on GaN devices
汪渭滨 1徐海军 1王伟1
作者信息
- 1. 中国电子科技集团公司第五十八研究所, 江苏 无锡 214035
- 折叠
摘要
Abstract
The active clamp forward converter can ruduce the switching loss at high frequency because of the soft-switching control of the switching tube.It has become the mainstream solution for the medium power isolation converter to achieve high efficiency and high power density.Based on an active clamp forward converter,a power supply prototype with an input of 28 V,an output of 3.3 V/30 A,and a switching frequency of 700 kHz is designed.The primary main switch uses gallium nitride(GaN)devices with low gate charge,low output capacitance,and zero reverse recovery loss.In combiantion of planar transformer technology and secondary synchronous rectification(SR)technology,the prototype can realize a peak efficiency of 95.13%.The high efficiency and high power density of the scheme are verified by analyzing the testing results of the prototype.关键词
有源箝位正激变换器/氮化镓/开关管/栅极电荷/平面变压器/同步整流Key words
active clamp forward converter/GaN/switching tube/gate charge/flat transformer/synchronous rectification分类
电子信息工程引用本文复制引用
汪渭滨,徐海军,王伟..基于GaN器件的有源箝位正激变换器设计[J].现代电子技术,2024,47(6):119-123,5.
