Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 60, Issue 6, Pages 2205-2213Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2012.2191753
Keywords
Bidirectional converter; dc/dc converter; tail current
Categories
Funding
- National Research Foundation of Korea [NRF-2010-R1A5A003-2010-0026283]
- Korean Government (Ministry of Education Science and Technology)
- Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning [20114010203030]
- Korea government Ministry of Knowledge Economy
- Ministry of Trade, Industry & Energy (MOTIE), Republic of Korea [R0000913] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper suggests a two-stage isolated/bidirectional dc/dc converter with hybrid-switching technique. High-frequency bidirectional resonant converter with a fixed gain can reduce the bulky transformer size by minimizing Insulated Gate Bipolar Junction Transistor (IGBT) turn-off loss due to tail current, and it forms bidirectional power flow without any control operation. Pulsewidth-modulation nonisolated converter takes in charge of bidirectional control, and its serious turn-off switching loss is alleviated using MOSFET-assisted hybrid-switching structure. The proposed scheme provides low switching loss and removes snubber circuitry so a high efficiency and a high power density can be obtained in high-voltage/high-power bidirectional applications.
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