Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1985-11-04
1987-02-24
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
361 18, 363 56, H02M 3335
Patent
active
046462198
ABSTRACT:
An intrinsically safe power supply arrangement with a current regulator is provided with a controlled semiconductor, coupled to a clock generator and coupled between a rectifier and a primary winding of a transformer, for periodically interrupting a DC current in response to a clock signal. A short-circuit switch is disposed between a secondary winding of the transformer and an output of the power supply arrangement. A choke is coupled to the short-circuit switch, and a voltage limiter is coupled to the choke. A current regulator, coupled between the voltage limiter and the output of the power supply arrangement, has a retrogressive current-voltage characteristic and a delay stage for producing a time-delayed rise of a selectable combination of current and voltage. A circuit element supplies a selectable input and output signal of the current regulator to an input of a voltage regulator. An output of the voltage regulator is coupled to the clock generator. A current measuring circuit coupled to the primary winding of the transformer and the clock generator limits the current supplied to the primary winding of the transformer in the event of a short-circuit on the secondary side of the transformer.
REFERENCES:
patent: 3371262 (1968-02-01), Bird et al.
patent: 3445751 (1969-05-01), Easter
patent: 3515974 (1970-06-01), Stich
patent: 3743887 (1973-07-01), Keough et al.
patent: 3982173 (1976-09-01), Berry et al.
patent: 4013938 (1977-03-01), McCoy
patent: 4017781 (1977-04-01), Muller
patent: 4037271 (1977-07-01), Keller
patent: 4124884 (1978-11-01), Episcopo
patent: 4130862 (1978-12-01), Holt
patent: 4389702 (1983-06-01), Clemente et al.
Rebsch D. L.
Siemens Aktiengesellschaft
Wong Peter S.
LandOfFree
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