Resonant snubber inverter

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United States of America Patent

PATENT NO 5642273
SERIAL NO

08316612

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Abstract

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A resonant, snubber-based, soft switching, inverter circuit achieves lossless switching during dc-to-ac power conversion and power conditioning with minimum component count and size. Current is supplied to the resonant snubber branches solely by the main inverter switches. Component count and size are reduced by use of a single semiconductor switch in the resonant snubber branches. Component count is also reduced by maximizing the use of stray capacitances of the main switches as parallel resonant capacitors. Resonance charging and discharging of the parallel capacitances allows lossless, zero voltage switching. In one embodiment, circuit component size and count are minimized while achieving lossless, zero voltage switching within a three-phase inverter.

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Patent Owner(s)

Patent OwnerAddress
MARTIN MARIETTA ENERGY SYSTEMS INC701 SCARBORO ROAD POST OFFICE BOX 2009 OAK RIDGE TN 37831

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Daoshen Knoxville, TN 30 319
Lai, Jih-Sheng Knoxville, TN 37 1350
McKeever, John W Oak Ridge, TN 3 76
Ott, Jr George W Knoxville, TN 2 44
Scudiere, Matthew B Oak Ridge, TN 11 157
White, Clifford P Knoxville, TN 8 960
Young, Sr Robert W Oak Ridge, TN 2 44

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