Gain controller for variable-gain amplifier

Details Gain controller for variable-gain amplifier Gain controller for variable-gain amplifier

1997-06-11

1999-04-20

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including gain control means

330129, 455126, 4552342, H03G 330

Patent

active

058960643

ABSTRACT:
An automatic gain controller controls the gain of a variable-gain amplifier based on an error signal which is corrected by a correction controller using discrete characteristic data which are sampled from a gain control characteristic of the variable-gain amplifier in sampling steps each being set depending on a variation of the gain control characteristic. The correction controller corrects the error signal based on continuous characteristic data generated from the discrete characteristic data stored in the memory so that the gain control characteristic of the variable-gain amplifier is substantially linear with respect to the error signal.

REFERENCES:
patent: 4546326 (1985-10-01), Van Uffelen et al.

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