Bypass control for a solid state switching device

Details Bypass control for a solid state switching device Bypass control for a solid state switching device

1975-10-28

1978-01-17

Dobeck, B.

Electricity: motive power systems

Battery-fed motor systems

318341, H02P 728

Patent

active

040694453

ABSTRACT:
A bypass control for shorting out a silicon controlled rectifier (SCR) control circuit so that full battery potential can be applied to a direct current motor. The bypass control has a timing circuit for delaying closing of the bypass contacts. This timing circuit is disabled in the event the main SCR is defective and will not turn on, and also in the event the motor is plugging. In the event the bypass contacts weld closed, the control will prevent further operation of the motor.

REFERENCES:
patent: 3764870 (1973-10-01), Morton et al.
patent: 3936707 (1976-02-01), Yoshida et al.
patent: 3968414 (1976-07-01), Konrad

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