期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 51, 期 2, 页码 1864-1871出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2014.2344506
关键词
Brushless motors; MOSFET circuits; motor drives; permanent-magnet machines; permanent-magnet motors; p-i-n diodes; power MOSFET; power semiconductor devices; Schottky diodes; switching loss
资金
- Boeing Company
This paper presents a new power electronic topology that aims to reduce switching losses in hard-switched inverters for brushless dc (BLDC) motor drives. This is achieved by extending the benefits of synchronous rectification used in low-voltage switch-mode dc-dc conversion to high-voltage motor drive applications and by minimizing the reverse conduction behavior of the intrinsic body diode of the synchronous rectifier MOSFET. The proposed topology for reducing body diode conduction includes the addition of a MOSFET in series with the rectifying switch and a SiC Schottky diode around the series switch combination. This paper focuses on theory, simulations, and experimental results and validates the benefits of proposed new topology for BLDC motor drive applications. An extension of this topology for sinusoidal back electromotive force permanent-magnet motors is also presented.
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