Single power supply battery feed circuit

Details Single power supply battery feed circuit Single power supply battery feed circuit

1983-09-06

1985-12-10

Rubinson, Gene Z.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

179 77, 330301, 323268, H04B 303, H04M 1900

Patent

active

045581860

ABSTRACT:
A two amplifier subscriber line interface circuit that uses a novel voltage divider technique for providing power to the two lower voltage amplifiers from a 50 volt central office battery. This is achieved by using one lower power amplifier with a Zener regulator diode in shunt thereof to regulate its current.

REFERENCES:
patent: 4041252 (1977-08-01), Cowden
patent: 4241239 (1980-12-01), Pernyeszi
patent: 4387273 (1983-06-01), Chea, Jr.
"Fully Electronic TD-PABX Techniques", Y. Morikawa, International Conference on Private Electronic Switching Systems, Apr. 10-12, 1978.

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