Controlled recovery automatic gain control amplifier

Details Controlled recovery automatic gain control amplifier Controlled recovery automatic gain control amplifier

1977-05-24

1978-09-05

Dahl, Lawrence J.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

179 1VC, 330135, 330281, 330284, H03G 320

Patent

active

041123840

ABSTRACT:
An automatic gain control amplifier having a controlled recovery of gain is disclosed and includes a peak detector for generating an output when the amplifier output exceeds a predetermined level, a memory setting circuit responsive to the peak detector output, a memory controlled by the memory setting circuit, and a memory adjust circuit responsive to information derived from the amplifier output. The output of the memory controls an attenuator of the automatic gain control amplifier. Amplifier output level change detection circuitry is also disclosed and accepts the output of the amplifier for producing an output indicating amplifier output level changes exceeding a predetermined magnitude. The level change detection output controls the memory adjust circuit.

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