Integrated circuit linear time delay extender for static relays

Details Integrated circuit linear time delay extender for static relays Integrated circuit linear time delay extender for static relays

1975-02-03

1976-07-20

Moose, Harry

317 36TD, H02H 308

Patent

active

039708993

ABSTRACT:
A static relay utilizing a resistance-capacitance network to provide a current-time characteristic which has an inverse relationship for appropriately controlling protective operations in power transmission and distribution networks. An integrated dual-threshold and clamp circuit is employed in the static relay to adjustably control the time delay characteristic of the network over a range of several orders of magnitude without altering the time delay wave shape or requiring matched components and incorporates linear time setting means to facilitate adjustment and usage of the static relay.

REFERENCES:
patent: 3766436 (1973-10-01), Zocholl
patent: 3859543 (1975-01-01), Milovancevic
"Getting Extra Control Over Output Periods of IC Timer," Electronics - Sept. 19, 1974, p. 112.
"Versatile IC Timer," Popular Electronics, July 1973, pp. 98-99.

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