Amplifier circuit for minimizing output voltage power-up transie

Details Amplifier circuit for minimizing output voltage power-up transie Amplifier circuit for minimizing output voltage power-up transie

1984-02-23

1985-05-07

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

330253, 330261, H03F 316

Patent

active

045160821

ABSTRACT:
An amplifier circuit minimizes output voltage transients during powering up of the circuit. First and second bias current source portions are coupled to an input portion for receiving an input voltage. An amplifier portion is coupled to the input portion. The first bias current source portion provides a constant minimal current to the input portion which maintains the circuit bias voltage to the amplifier portion at near quiescent operating conditions. The second bias current source portion is switched to the input portion in response to a power control signal and provides bias current to the input portion necessary for circuit operation.

REFERENCES:
patent: 3622900 (1971-11-01), Hanus et al.

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