Hybrid automatic gain control circuit

Details Hybrid automatic gain control circuit Hybrid automatic gain control circuit

1978-10-19

1980-07-15

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330129, 330133, 330134, 330279, H03G 320

Patent

active

042130972

ABSTRACT:
An automatic gain control circuit having a coarse analog gain adjustment section producing discrete increments of db gain and a fine digital gain adjustment section. The digital section provides for adjustment of gain through a final increment of db gain to achieve precise gain setting. The output of the digital section is squared and compared to a reference signal to derive an error signal whose value is fed to an apparatus which iteratively determines the precise coarse increment and fine digital settings to achieve the final desired gain setting.

REFERENCES:
patent: 3931584 (1976-01-01), Motley et al.

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