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US 7,405,496 B2Granted
Transfer circuit topology for redundant power generator regulators and inverting DC drives
AssigneeGeneral Electric Company
InventorsRobert Gregory Wagoner, Scott Charles Frame, Brian Eric Lindholm, Pedro Monclova
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Abstract
A method and transfer circuit topology for a redundant power converter for switching a load between power conversion circuits in a redundant system. The transfer circuit topology includes a first contactor and a second contactor each having an input coupled to a source and an output coupled to a controlled commutating current path. The controlled commutating current path is coupled to the load for switching between the redundant power converters without interrupting current to the load.
Claims8
A transfer circuit topology comprising:
- a first contactor having an input selectively coupled to a first power converter;
- a second contactor having an input selectively coupled to a second power converter;
- a single battery coupled to a first input of said first power converter using first diodes and a second input of said second power converter using second diodes;
- a controlled commutating current path coupled to an output of said first contactor and said second contactor and to a load for providing an uninterrupted load current from said single battery to said load during a transfer between said first and said second power converters;
- and
- a thyristor across said load and said output of said first and second contactors, said thyristor being turned on for carrying said uninterrupted load current during a transition period when both said first and second contactors are open simultaneously.
3 more elements
Dependencies are inferred from the claim text.