Telephone subscriber's loop power control circuit

Details Telephone subscriber's loop power control circuit Telephone subscriber's loop power control circuit

1978-06-15

1980-04-08

Brigance, Gerald

179 70, 179 251, H04M 1908

Patent

active

041974328

ABSTRACT:
A power control circuit which supplies all of the power requirements of a telephone subscriber's loop circuit in a digital telephone switching system. A central processing unit generates digital power supply selection and control signals which are decoded and stored by the power control circuit. These signals are then supplied to a selected programmable power supply for selected time durations.

REFERENCES:
patent: 3848094 (1974-11-01), Russell
patent: 4087647 (1978-05-01), Embree et al.
patent: 4088843 (1978-05-01), Rogers et al.
"A User's Handbook of D/A and A/D Converters", 1976, by Eugene R. Hnatek, pp. 190-193, Wiley & Sons.

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