Title :
A New Resonant Gate-Drive Circuit With Efficient Energy Recovery and Low Conduction Loss
Author :
Eberle, Wilson ; Liu, Yan-Fei ; Sen, Paresh C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, ON
fDate :
5/1/2008 12:00:00 AM
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.
Keywords :
power MOSFET; power convertors; circulating-current conduction loss; energy recovery; high-frequency converters; power MOSFET; power-MOSFET-gate energy; resonant gate-drive circuit; resonant inductance; Gate drive; MOSFET gate drive; MOSFET gate driver; current source drive; gate drive; gate energy recovery; gate loss; gate-energy recovery; resonant gate drive; resonant gate driver;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2008.918636