Vital relay driver having controlled response time

Details Vital relay driver having controlled response time Vital relay driver having controlled response time

1980-06-27

1982-06-29

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92DP, 307116, 364900, G07C 1100

Patent

active

RE0309869

ABSTRACT:
A vital relay driver whose response time can be readily controlled such that the release time of the relay may be varied, yet may be held to very close tolerances. The vital relay driver is controlled by a microprocessor dedicated to this function, such processor generating a dynamic signal of fixed frequency in dependence on a cycle number which is continually replenished; otherwise the microprocessor stops producing the dynamic signal and the relay is released in a closely known time.

REFERENCES:
patent: 3566368 (1971-02-01), De Blauw
patent: 3723975 (1973-03-01), Kurtz et al.
patent: 4080575 (1978-03-01), Shigenobu
patent: 4102492 (1978-07-01), Gold et al.
patent: 4161027 (1979-07-01), Russell
patent: 4167786 (1979-09-01), Miller et al.

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