Electronic switching apparatus

Details Electronic switching apparatus Electronic switching apparatus

1985-08-06

1986-12-30

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

363 56, 323287, 307240, 307252M, H01H 326, H02M 118, G05F 156

Patent

active

046330941

ABSTRACT:
The invention relates to a changeover discharge circuit for an electronic switching circuit of the type having a semiconductor switching element in series with a DC source and an inductive load. Initiation of the discharge current of a discharge capacitor is delayed upon the switching on of the switching element until the substantial termination of the load current by a commutation choke coil and a recovery diode in shunt with the load.

REFERENCES:
patent: 3577065 (1971-05-01), Putzrath et al.
patent: 3626277 (1971-12-01), Munson
patent: 3736495 (1973-05-01), Calkin et al.
patent: 3919622 (1975-11-01), Ainema et al.
patent: 4167776 (1979-09-01), Nygard
patent: 4363067 (1982-12-01), Radomski
patent: 4378586 (1983-03-01), Bete
patent: 4566051 (1986-01-01), Komulainen

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