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A soft switching active snubber optimized for IGBTs in single switch unity power factor three-phase diode rectifiers

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3 Author(s)
Chen, K. ; REM Technologies, Schenectady, NY, USA ; Elasser, A. ; Torrey, D.A.

The soft switching snubber circuit provides zero-voltage turn-off for the main switch. The high turn-off losses of the IGBT due to the current tailing are reduced by zero-voltage switching. This allows the circuit to be operated at very high switching frequencies with regulated DC output voltage, high quality input current and unity input power factor. Simulation and experimental results are included

Published in:

Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual

Date of Conference:

13-17 Feb 1994