Amplitude control apparatus

Details Amplitude control apparatus Amplitude control apparatus

1982-05-24

1984-08-28

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including gain control means

330278, H03G 330

Patent

active

044686315

ABSTRACT:
The DC component of an input signal is regulated at a constant amplitude to provide a resultant signal that is coupled to an output node via variable transmission means to provide a processed output signal. Feedback control means, coupled to the variable transmission means, regulates the DC component of the processed output signal linearly in accordance with the amplitude of a gain control signal thereby providing corresponding linear changes in the amplitude of the AC component of the processed output signal without need for linear transmission elements in the variable transmission means.

REFERENCES:
patent: 3720880 (1973-03-01), Le Seigneur
J. G. Graeme "Applications of Operational Amplifiers-Third Generation Techniques" McGraw-Hill Book Co., 1973, pp. 97-102.

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