Title :
Compensation devices solve failure mode of the phase shift ZVS bridge during light-load operation
Author :
Deboy, G. ; Hancock, J. ; Pürschel, M. ; Wahl, U. ; Willmeroth, A.
Author_Institution :
Infineon Technol. AG, Munich, Germany
Abstract :
This article investigates experimentally and by device simulation the use of compensation devices in the phase shift ZVS bridge. Power MOSFETs reportedly fail at light load conditions due to the uncomplete clearance of the reverse recovery charge before turn-off. It is shown that compensation devices like CoolMOSTM Solve this problem due to their significantly different device structure
Keywords :
bridge circuits; compensation; power MOSFET; power supplies to apparatus; switching circuits; 2 kW; 48 V; CoolMOS; compensation devices; failure mode; light load conditions; light-load operation; phase shift ZVS bridge; phase-shift ZVS power supply; power MOSFETs; reverse recovery; turn-off; Bridge circuits; Circuit testing; Circuit topology; Diodes; Low voltage; MOSFETs; Power system reliability; Stress; Timing; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989365
