The Active Self-controlled Free-wheeling Management Principle Applied to Reverse Recovery Losses Reduction

Several works suggest the imminent appearance of bidirectional active devices. The promised performances go in the direction of a reverse recovery effects reduction and efficiency improvement. Our purpose is the study of an active management for switches that cannot be spontaneous in commutation as a diode. Based on zero-crossing detection and protection circuits, new mechanisms are introduced. As an application, a free-wheeling path is performed using a bidirectional active switch. The principles are verified in two basic converters. For experimental results, a bidirectional switch is implemented using a combination of MOSFETs in direct and reverse conduction.


Presented at:
PCC 2007 : The Fourth Power Conversion Conference, Nagoya, Japan, 2-5 April 2007
Year:
2007
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2007-04-23, last modified 2018-03-17

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