Multiphase solid-state contactor

Details Multiphase solid-state contactor Multiphase solid-state contactor

1986-07-16

1989-01-31

Zazworsky, John

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307632, 361395, 361415, H03K 1772

Patent

active

048018287

ABSTRACT:
A multiphase solid-state contactor for controlling a principal circuit, comprising a plurality of thyristors connected in anti-parallel relation, and an electronic control circuit connected to the thyristors including a firing control circuit, an input circuit and a surge absorbing circuit. The input circuit may include a rectifier and voltage detector for compensating for variations in the operating voltage of the principal circuit. Each of the firing control circuit, the input circuit and the surge absorbing circuit may comprise separate printed circuit boards which may be mounted in stacked relation in a casing for ease of handling and repair. Auxiliary terminals are also provided for outputting an auxiliary output signal from the device.

REFERENCES:
patent: 3506877 (1970-04-01), Owen
patent: 3755695 (1973-08-01), Krick et al.
patent: 3816763 (1974-06-01), Korn et al.
patent: 3899713 (1975-08-01), Barkan et al.
patent: 3958172 (1976-05-01), Beck
patent: 4337430 (1982-06-01), Flego
patent: 4533976 (1985-08-01), Suwa
patent: 4542437 (1985-09-01), Ellis et al.

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