Time delay circuit for timing relays

Details Time delay circuit for timing relays Time delay circuit for timing relays

1978-06-08

1980-05-20

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

307252F, H01H 714

Patent

active

042042429

ABSTRACT:
The invention is concerned with a time delay circuit for timing relays with operation by means of alternating potential with a rectifier, a programmable unijunction transistor and an RC network with a common junction point.

REFERENCES:
patent: 3689807 (1972-09-01), Tenenbaum
patent: 3814948 (1972-06-01), Schuchmann et al.
patent: 4138708 (1979-02-01), Takeshima
GE Application Note, "The D13T-A Put" Spofford, W. R., Jr., Nov. 1967, vol. 90.70.

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