Timer circuit

Details Timer circuit Timer circuit

1979-01-23

1981-05-12

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307246, 307247A, 307141, H03K 17292

Patent

active

042674670

ABSTRACT:
The maximum voltage stored in a timer storage capacitor during charging is limited to a fixed level independent of battery voltage by the junction drops of a plurality of forward biased solid state devices. The discharge time of the timer storage capacitor to a predetermined triggering level is thus also independent of battery voltage. At the triggering level, control and drive circuits interrupt the supply circuit to an electric device.

REFERENCES:
patent: 3732467 (1973-05-01), Mills
patent: 4015142 (1977-03-01), Nagaoka et al.
patent: 4035669 (1977-07-01), Yokoyama
patent: 4053790 (1977-10-01), Myers
patent: 4107553 (1978-08-01), Carter

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