Amplifier with independent quiescent output voltage control

Details Amplifier with independent quiescent output voltage control Amplifier with independent quiescent output voltage control

1982-02-26

1984-02-21

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330256, 330288, 330289, H03F 345

Patent

active

044333021

ABSTRACT:
A circuit for providing a quiescent output voltage having a load resistor, a current means for establishing a load current through the load resistor, and a mirror means for summing a mirror current with the load current at an output terminal. The current means comprises a differential amplifier driving a multiplying mirror. The mirror means comprises a Wilson mirror for providing one of its tail currents as the additional current to be summed at the output terminal. The circuit provides a quiescent output voltage that is independent of the reference voltage supplying the differential amplifier or the tail current through the differential amplifier.

REFERENCES:
patent: 3649926 (1972-03-01), Hill

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