Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1989-08-15
1991-02-19
Stephen, Steven L.
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 60, 318811, 307 82, 307 87, H02M 300, H02M 710
Patent
active
049949535
ABSTRACT:
A DC power supply (10) in accordance with the invention includes a plurality of DC to DC converters (20), each converter converting a multiple phase AC potential to a DC output potential (24) containing an undesired AC component; a circuit (30) for combining the DC output potential of each converter into a combined DC output potential (16) and arithmetically cancelling the undesired AC component; and a controller (22) for producing a time reference (A, B, . . . N) applied to each of the converters to set an angular relationship of each of the phases of each converter with respect to the applied time reference, the time reference of each of the converters being spaced apart from a time reference of another of the converters by an angle .theta. wherein ##EQU1## wherein n is equal to 2.sup.x where x is an integer and n is the number of converters.
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Stephen Steven L.
Sundstrand Corporation
Todd Voeltz Emanuel
LandOfFree
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