Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Resonant snubber inverter

Patent ·
OSTI ID:871021
 [1];  [1];  [2];  [1];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
+ Show Author Affiliations

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.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5642273
OSTI ID:
871021
Country of Publication:
United States
Language:
English

References (3)

Resonant snubbers with auxiliary switches journal January 1993
The resonant DC link converter-a new concept in static power conversion journal January 1989
A rugged soft commutated PWM inverter for AC drives journal April 1992

Similar Records

Resonant snubber inverter
Patent · Tue Jun 24 00:00:00 EDT 1997 · OSTI ID:512434
Delta connected resonant snubber circuit
Patent · Mon Jan 19 23:00:00 EST 1998 · OSTI ID:570441
Delta connected resonant snubber circuit
Patent · Mon Jan 19 23:00:00 EST 1998 · OSTI ID:871337

Related Subjects

/363/
achieves
achieves lossless
achieving
allows
branches
capacitances
capacitors
charging
circuit
circuit achieves
circuit component
component
component count
conditioning
conversion
count
current
dc-to-ac
dc-to-ac power
discharging
embodiment
inverter
inverter circuit
lossless
lossless switching
main
maximizing
minimized
minimum
minimum component
parallel
parallel resonant
power
power conditioning
power conversion
reduced
resonance
resonant
resonant capacitors
resonant snubber
semiconductor
semiconductor switch
single
size
snubber
snubber-based
soft
soft switching
solely
stray
supplied
switch
switches
switching
three-phase
voltage
voltage switch
voltage switching
zero
zero voltage