Time delay control circuit

Details Time delay control circuit Time delay control circuit

1975-02-13

1977-06-14

Schaefer, Robert K.

Electricity: motive power systems

Automatic and/or with time-delay means

Time or with time-delay means

307234, 3071414, 328112, H02P 110

Patent

active

040300102

ABSTRACT:
A flip-flop is arranged to be set by a first comparator and reset by a second comparitor. A first capacitor and a first resistor are connected between the input terminals of the circuit with the first comparator connected across the first resistor and the second comparator connected across the second resistor. The flip-flop is set and reset with time delays determined by the charging times of their respective associated capacitors. No external bias supply is required.

REFERENCES:
patent: 3564285 (1971-02-01), Gilbert
patent: 3676699 (1972-07-01), Warren
patent: 3693101 (1972-09-01), Trimble
patent: 3701029 (1972-10-01), Hogg
patent: 3898481 (1975-08-01), Glaser
patent: 3922611 (1975-11-01), Kanitz
Benson, Jr. et al., "Pulse-width discriminator uses Unijunction Transistor", Electronic Design, Mar. 1, 1968.
Whittington et al., "Versatile Discriminator Measures Pulse Length", Electronics, vol. 35, No. 31, Aug. 3, 1962.

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