A New Resonant Gate-Drive Circuit With Efficient Energy Recovery and Low Conduction Loss
Eberle, W.
Yan-Fei Liu
Sen, P.C.
Dept. of Electr. & Comput. Eng., Queen's Univ., Kingston, ON;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: May 2008
Volume: 55,
Issue: 5
On page(s): 2213-2221
ISSN: 0278-0046
INSPEC Accession Number: 9960758
Digital Object Identifier: 10.1109/TIE.2008.918636
Current Version Published: 2008-04-30
Abstract
In this paper, a new resonant gate-drive circuit is proposed to recover a portion of the power-MOSFET-gate energy that is typically dissipated in high-frequency converters. The proposed circuit consists of four control switches and a small resonant inductance. The current through the resonant inductance is discontinuous in order to minimize circulating-current conduction loss that is present in other methods. The proposed circuit also achieves quick turn-on and turn-off transition times to reduce switching and conduction losses in power MOSFETs. An analysis, a design procedure, and experimental results are presented for the proposed circuit. Experimental results demonstrate that the proposed driver can recover 51% of the gate energy at 5-V gate-drive voltage.
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