Power supply for arc lamps

Details Power supply for arc lamps Power supply for arc lamps

1982-07-12

1984-11-27

Wong, Peter S.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 56, 323266, 315DIG7, H02M 7537

Patent

active

044854340

ABSTRACT:
A power supply for an arc lamp comprises a power source and an inverter, the power source being a constant current source and the inverter a bridge network of field effect transistors switched by square wave pulses from an oscillator so that the output of the bridge network comprises alternating square wave pulses of equal duration for driving the lamp. The oscillator pulses are fed by way of opto-isolators to the bridge transistors. The constant current source and bridge network are provided as a power module for parallel connection with like modules and the oscillator is of modular form and serves as a common oscillator for the power modules.

REFERENCES:
patent: 3737755 (1973-06-01), Calkin et al.
patent: 3976932 (1976-08-01), Collins
patent: 3999100 (1976-12-01), Dendy et al.
patent: 4020361 (1977-04-01), Suelzle et al.
patent: 4150425 (1979-04-01), Nagano et al.
patent: 4270164 (1981-05-01), Wyman et al.
R. P. Severns, "A New Current-Fed Converter Topology", PESC 79 IEEE Power Electronics Specialists Conference 1979, San Diego, CA, U.S.A., pp. 277-283.
Electronique et Applications Industrielles, No. 259, Nov. 1978, Paris (France), A. Filleau, "Application du VMOS; la Puissance d'une Nouvelle Technologie", pp. 19-24.

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