A zero-voltage-switched three-phase interleaved buck converter. Issue 4 (3rd April 2018)

• Record Type: Journal Article
• Authors: Hsieh, Yao-Ching; Huang, Bing-Siang; Lin, Jing-Yuan; Pham, Phu Hieu; Chen, Po-Hao; Chiu, Huang-Jen
• Is Part Of: International journal of electronics. Volume 105:Issue 4(2018)
• Page Start: 572
• Page End: 585
• Publication Date: 2018-04-03
• Subjects: Three-phase -- zero-voltage-switching -- reverse-recovery; Electronics -- Periodicals; Electronic control -- Periodicals; 621.381
• DOI: 10.1080/00207217.2017.1381885
• Languages: English
• ISSNs: 0020-7217

Abstract

ABSTRACT: This paper proposes a three-phase interleaved buck converter which is composed of three identical paralleled buck converters. The proposed solution has three shunt inductors connected between each other of three basic buck conversion units. With the help of the shunt inductors, the MOSFET parasitic capacitances will resonate to achieve zero-voltage-switching. Furthermore, the decreasing rate of the current through the free-wheeling diodes is limited, and therefore, their reverse-recovery losses can be minimised. The active power switches are controlled by interleaved pulse-width modulation signals to reduce the input and output current ripples. Therefore, the filtering capacitances on the input and output sides can be reduced. The power efficiency is measured to be as high as 98% in experiment with a prototype circuit.