Title :
Reduction of power MOSFET losses in hard-switched converters
Author :
Blewitt, W.M. ; Gurwicz, D.I.
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Univ. of Newcastle upon Tyne, Newcastle upon Tyne
Abstract :
A new technique is proposed that will reduce the losses in MOSFET based hard-switched power converters. This is achieved by eliminating the poor reverse recovery effects associated with the internal body diode, resulting in a significant reduction in switching losses and improving conduction during current free-wheeling. The loss reduction can be accomplished without adding any extra complexity to the gate drive circuit or to the controller.
Keywords :
controllers; power MOSFET; semiconductor diodes; switching convertors; controller; current free-wheeling; gate drive circuit; hard-switched power converters; internal body diode; power MOSFET losses; reverse recovery effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081414