Electronic amplifier having a transmission factor that is variab

Details Electronic amplifier having a transmission factor that is variab Electronic amplifier having a transmission factor that is variab

1982-12-17

1985-04-23

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including gain control means

330 86, 333 14, H03G 320

Patent

active

045132534

ABSTRACT:
An electronic amplifier having a transmission factor which can be varied by means of a control voltage, specifically an expander. A switch is provided for selective operation of the amplifier with a fixed control voltage or with a variable control voltage, with this switch being coupled with circuitry for reducing, during operation of the amplifier with a fixed control voltage, the output voltage of the control circuit generating the variable control voltage.

REFERENCES:
patent: 3988694 (1976-10-01), Yamazaki

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