Three phase rectifier using three single phase converters and a

Electric power conversion systems – Current conversion – Having plural converters for single conversion

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363 67, H02M 706

Patent

active

058944141

ABSTRACT:
A power converter for converting three phase input power to DC output power and a method of effecting such conversion. The power converter includes: (1) three single phase DC converters, each having outputs, that receive the three phase input power, (2) a DC/DC converter coupled to the outputs of the three single phase DC converters and (3) a converter selection circuit, associated with the three single phase DC converters, that selects a selected subset of the three single phase DC converters as a function of an electrical characteristic of each phase of the three phase input power to conduct a portion of the three phase input power to the DC/DC converter, the converter selection circuit permitting the power converter to operate on the three phase power with less than three DC/DC converters.

REFERENCES:
patent: 3135910 (1964-06-01), Hamilton
patent: 4622629 (1986-11-01), Glennon
patent: 4739466 (1988-04-01), Glennon et al.
patent: 4866591 (1989-09-01), Cook et al.
patent: 5267137 (1993-11-01), Goebel
patent: 5398182 (1995-03-01), Crosby
patent: 5406470 (1995-04-01), Ridley et al.

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