Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1987-03-23
1988-03-29
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 21, H02M 3335
Patent
active
047348399
ABSTRACT:
A source V-A/load V-A differential converter (single quaddrant DC-DC topology) combines the canonical functions of both the boost and buck converter topologies. Basic advantages of the boost and buck topologies are retained, disadvantages of these and prior art compound topologies are eliminated, and several entirely new and useful functions are realized. These new functions include sub-microsecond source voltage/load step response (independent of feedback loop parameters), extremely wide source voltage range, very high conversion efficiency/power density, multiple auxiliary outputs with closely held voltage range parameters (without resort to minimum load, pre-load, or sub-regulation), galvanic input/output isolation, enhanced capacitance safety/energy storage, reduced gain bandwidth requirements, and intrinsic stability. The differential term derives from the transfer function for this new compound topology, i.e., x=.delta.(a+x).
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A. Cocconi et al., "Design of a 2 KW, 100 KHz Switching Regulator for Space Shuttle", Powerconversion International, Jan. 1983, pp. 11-21.
Gilliam Frank D.
Wong Peter S.
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