Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1983-10-31
1985-08-06
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 56, 363 98, 323222, 323266, H02M 3335
Patent
active
045339864
ABSTRACT:
The present invention relates to a compact electrical power supply which derives electrical energy from a low frequency medium voltage source (e.g. a 120 V 60 Hz ac main), and converts the electrical energy to a low voltage format suitable for solid state signal processing equipment. The supply entails in succession bridge rectification means, a dc-dc boost converter, a capacitor storage bank, and a half bridge converter, either resonantly or non-resonantly operated. The converters operate at frequencies substantially above audible frequencies in the interests of compactness. The design provides a high input power factor (inductive) with minimum EMT, and provides a lengthened voltage hold up after loss of power.
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Baker Carl W.
General Electric Company
Lang Richard V.
Wong Peter S.
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