Amplifier with double rail output

Details Amplifier with double rail output Amplifier with double rail output

1987-05-20

1987-12-15

Dwyer, James L.

Telephonic communications

Centralized switching system

With generating of call associated substation signal

330275, H04M 302

Patent

active

047138386

ABSTRACT:
An amplifier with double rail output being a switchable to single rail output is provided by power pumping circuitry which is controllable by an error detector to deliver modulated power pulses from a d.c. power source to on-following current steering circuits for coupling to either or both of first and second output terminals. In one embodiment the amplifier is envisaged in an integrated circuit form wherein the current steering circuits are provided by switched voltage multipliers of novel structure so that voltage stress of some capacitive elements is reduced, thereby reducing the area these elements would otherwise occupy in the integrated circuit.

REFERENCES:
patent: 4656659 (1987-04-01), Chea, Jr.

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