An improved soft-switching PWM FB dc/dc converter for reducing conduction losses
- Authors
- Kim, ES; Joe, KY; Kye, MH; Kim, YH; Yoon, BD
- Issue Date
- Mar-1999
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- circulating current; conduction losses; soft-switching full-bridge dc/dc converter; zero-voltage-zero-current switching
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, v.14, no.2, pp 258 - 264
- Pages
- 7
- Journal Title
- IEEE TRANSACTIONS ON POWER ELECTRONICS
- Volume
- 14
- Number
- 2
- Start Page
- 258
- End Page
- 264
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/47453
- DOI
- 10.1109/63.750178
- ISSN
- 0885-8993
- Abstract
- An improved soft-switching topology of a full-bridge (FB) pulsewidth modulated (PWM) dc/dc converter is described. The nea topology employs an energy-recovery snubber to minimize a circulating current flowing through the transformer and switching devices. BS using an energy-recovery snubber instead of adding a tapped inductor and a saturable reactor to reduce rms current stress, the converter achieves zero-current switching (ZCS) for the right leg due to the minimized circulating current and achieves zero-voltage switching (ZVS) for the left leg due to the reflected output current during the interval of left leg transition. Both analysis and experiments are performed to verify the proposed topology by implementing a 7-kW (120 VDC, 58 A) 30-kHz insulated gate bipolar transistor (IGBT)-based experimental circuit.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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