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Title: Resonant snubber inverter

Abstract

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. 14 figs.

Inventors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lockheed Martin Energy Syst Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
512434
Patent Number(s):
US 5,642,273/A/
Application Number:
PAN: 8-316,612
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 240200; PA: EDB-97:111210; SN: 97001827924
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Jun 1997
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; INVERTERS; POWER CONDITIONING CIRCUITS; DESIGN; SWITCHES; CAPACITANCE

Citation Formats

Lai, J.S., Young, R.W. Sr., Chen, D., Scudiere, M.B., Ott, G.W. Jr., White, C.P., and McKeever, J.W. Resonant snubber inverter. United States: N. p., 1997. Web.
Lai, J.S., Young, R.W. Sr., Chen, D., Scudiere, M.B., Ott, G.W. Jr., White, C.P., & McKeever, J.W. Resonant snubber inverter. United States.
Lai, J.S., Young, R.W. Sr., Chen, D., Scudiere, M.B., Ott, G.W. Jr., White, C.P., and McKeever, J.W. Tue . "Resonant snubber inverter". United States.
@article{osti_512434,
title = {Resonant snubber inverter},
author = {Lai, J.S. and Young, R.W. Sr. and Chen, D. and Scudiere, M.B. and Ott, G.W. Jr. and White, C.P. and McKeever, J.W.},
abstractNote = {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. 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 24 00:00:00 EDT 1997},
month = {Tue Jun 24 00:00:00 EDT 1997}
}