Power converter including a recirculating snubber
AssigneeAerojet Rocketdyne, Inc.
InventorBryce L. Hesterman
Life of this patent
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Abstract
A power converter includes a first rectifier circuit having a pair of first rectifier circuit output terminals and a second rectifier circuit having a pair of second rectifier circuit output terminals, a snubber circuit comprising a first diode and a first capacitor connected to each other at a first node and connecting the pair of first rectifier circuit output terminals, a second diode and a second capacitor connected to each other at a second node and connecting the pair of second rectifier circuit output terminals, a third diode connecting the first node to one of the pair of second rectifier output terminals, and a fourth diode connecting the second node to one of the pair of first rectifier output terminals.
Claims15
A power converter comprising:
- a first rectifier circuit having a pair of first rectifier circuit output terminals and a second rectifier circuit having a pair of second rectifier circuit output terminals;
- a snubber circuit comprising a first diode and a first capacitor connected to each other at a first node, the first diode and the first capacitor being connected in series and the series connected first diode and first capacitor connect the pair of first rectifier circuit output terminals, a second diode and a second capacitor connected to each other at a second node, the second diode and the second capacitor being connected in series and the series connected second diode and second capacitor connect the pair of second rectifier circuit output terminals, a third diode connecting the first node to a low voltage output of the pair of second rectifier output terminals, and a fourth diode connecting the second node to a high voltage output of the pair of first rectifier output terminals.
A method for reducing voltage spikes in a power converter comprising:
- recirculating snubber energy through a snubber circuit comprising a first diode and a first capacitor connected to each other at a first node, the first diode and the first capacitor being connected in series and the series connected first diode and first capacitor connecting a pair of first rectifier circuit output terminals, a second diode and a second capacitor connected to each other at a second node, the second diode and the second capacitor being connected in series and the series connected second diode and second capacitor connecting a pair of second rectifier circuit output terminals, a third diode connecting the first node to one of the pair of second rectifier output terminals, and a fourth diode connecting the second node to one of the pair of first rectifier output terminals.
Dependencies are inferred from the claim text.