期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 68, 期 9, 页码 7938-7945出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3013792
关键词
Windings; Switches; Inductance; Inductors; Zero current switching; Soft switching; Capacitors; Bidirectional converter; coupled inductors; high conversion ratio; soft switching
This article presents a soft-switching buck-boost converter with high step-up/down conversion ratio, utilizing coupled inductors and a simple auxiliary circuit. The design eliminates the reverse recovery problem of switches body diodes, improving the converter efficiency.
This article presents a soft-switching buck-boost converter with high step-up/down conversion ratio. The popular coupled inductors method is employed to achieve high step-up/down gain conversion. Moreover, a simple auxiliary circuit, including a small capacitor, active switch, and an extra winding on the coupled inductors, is utilized to provide soft-switching condition for the main switches in both operating states. This simple auxiliary circuit is a proper substitute for two essential active clamp circuits required in bidirectional converters with coupled inductors. Also, the added auxiliary winding is employed in the power flow path to increase the step-up/down voltage gain. All switches have zero current switching (ZCS) turn-on and zero voltage ZCS (ZVZCS) turn-off performance, which eliminates the reverse recovery problem of switches body diodes and improves converter efficiency. A 300-W prototype converter with 48-380 V conversion ratio is realized to confirm the validity of theoretical analysis and the operation of the proposed converter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据