High efficiency power system with plural parallel DC/DC converters
First Claim
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1. A high efficiency distributed staged power system comprising:
- an energy storage unit;
a high voltage bus coupled to the energy storage unit;
an input filter coupled to the high voltage bus;
a parallel voltage converter comprising a plurality of parallel coupled power modules that is coupled to the input filter;
an output filter coupled to the parallel voltage converter;
a low voltage bus coupled between the output filter and one or more loads;
an input control signal interface coupled to the parallel voltage converter;
an output control signal interface coupled to the parallel voltage converter; and
a smart controller coupled to the input and output control signal interfaces.
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Abstract
A distributed staged power system for use in electric and hybrid electric vehicles, and the like. The system comprises a plurality of parallel DC-to-DC power modules that are controlled by way of input and output control signal interfaces using a smart controller. The distributed staged power system provides higher efficiency because of smart staging of the power modules. The distributed staged power system enables or disables each of the modules as determined by a smart controller to provide the highest possible conversion efficiency.
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14 Claims
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1. A high efficiency distributed staged power system comprising:
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an energy storage unit; a high voltage bus coupled to the energy storage unit; an input filter coupled to the high voltage bus; a parallel voltage converter comprising a plurality of parallel coupled power modules that is coupled to the input filter; an output filter coupled to the parallel voltage converter; a low voltage bus coupled between the output filter and one or more loads; an input control signal interface coupled to the parallel voltage converter; an output control signal interface coupled to the parallel voltage converter; and a smart controller coupled to the input and output control signal interfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification