Delta connected resonant snubber circuit
Abstract
A delta connected, 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 dc supply voltage through the main inverter switches and the auxiliary 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. 36 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 570441
- Patent Number(s):
- 5710698
- Application Number:
- PAN: 8-540,302
- Assignee:
- Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 20 Jan 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 24 POWER TRANSMISSION AND DISTRIBUTION; INVERTERS; POWER CONDITIONING CIRCUITS; DESIGN; SEMICONDUCTOR SWITCHES; CAPACITORS
Citation Formats
Lai, J S, Peng, F Z, Young, Sr, R W, and Ott, Jr, G W. Delta connected resonant snubber circuit. United States: N. p., 1998.
Web.
Lai, J S, Peng, F Z, Young, Sr, R W, & Ott, Jr, G W. Delta connected resonant snubber circuit. United States.
Lai, J S, Peng, F Z, Young, Sr, R W, and Ott, Jr, G W. Tue .
"Delta connected resonant snubber circuit". United States.
@article{osti_570441,
title = {Delta connected resonant snubber circuit},
author = {Lai, J S and Peng, F Z and Young, Sr, R W and Ott, Jr, G W},
abstractNote = {A delta connected, 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 dc supply voltage through the main inverter switches and the auxiliary 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. 36 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 20 00:00:00 EST 1998},
month = {Tue Jan 20 00:00:00 EST 1998}
}