Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1992-01-17
1994-06-07
Beha, Jr., William H.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
219137PS, 363 36, 363143, B23K 910
Patent
active
053195337
ABSTRACT:
An inverter power supply for use with various voltage inputs is provided. The inverter power supply generally receives 208 VAC single-phase, 230 VAC three-phase, 230 VAC single-phase, 460 VAC single-phase, 208 VAC three-phrase or 460 VAC three-phase power and provides a DC output current for welding, heating or cutting applications. The power inverter circuit includes a first tank circuit and a second tank circuit which are configured in serial or parallel according to a particular voltage input. Contactors, relays, or semiconductor switches respond to control signals from an AC sense circuit in order to configure the inverter power supply for the appropriate voltage input.
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"Automatic Input-Selecting Power Circuit", IBM Tech. Discl. Bul., vol. 28, No. 3, pp. 1246-1247, Aug. 1985.
Nowak Albert M.
Reynolds Jon O.
Beha Jr. William H.
Miller Electric Mfg. Co.
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