Automatic gain control circuit

Details Automatic gain control circuit Automatic gain control circuit

1979-05-25

1981-09-29

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including gain control means

330141, 358177, H03G 320

Patent

active

042925983

ABSTRACT:
An automatic gain control circuit includes a VCA, an AGC detector and an AGC time constant circuit which form an AGC loop. The AGC circuit further includes a level detector and a time constant designator. When the level detector detects an excess level of a signal derived from the VCA, the designator changes the time constant of the time constant circuit.

REFERENCES:
patent: 3624290 (1971-11-01), Hofmann

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