Modular IC on-delay timer

Details Modular IC on-delay timer Modular IC on-delay timer

1976-06-10

1978-03-14

Dobeck, B.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

307293, H01H 700

Patent

active

040792676

ABSTRACT:
An on-delay timer of the solid state type incorporating integrated circuit (IC) modules including a five-transistor array in a dual-in-line package (DIP), a multiple-transistor monolithic triggering comparator circuit used as a timer, and a bidirectional thyristor or Triac. All voltages are referenced to one power line to afford simplicity of circuitry wherein the load current does not flow through the pilot switch. A leaky switch detector circuit using a simple voltage divider is incorporated in the pilot switch circuit.

REFERENCES:
patent: 3562595 (1971-02-01), Swanson et al.
patent: 3651375 (1972-03-01), Ebersohl
patent: 3801866 (1974-04-01), Schmidgall
patent: 3814948 (1974-06-01), Schuchmann et al.
patent: 3838748 (1974-10-01), Gray et al.

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