Variable gain amplification using Taylor expansion

Details Variable gain amplification using Taylor expansion Variable gain amplification using Taylor expansion

2007-04-03

2007-04-03

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S278000

Reexamination Certificate

active

11029194

ABSTRACT:
Circuits and methods are provided for variable gain amplification. In one implementation, a circuit is provided that includes a control circuit, an amplifier circuit, and a gain circuit. The control circuit receives a control signal and produces a current control signal, the current control signal being a ratio of a first current and a second current. The amplifier circuit is operable to apply a gain to an input voltage for producing an output voltage. The gain circuit is in communication with the control circuit and the amplifier circuit and receiving the current control signal, the gain circuit operable to adjust the gain responsive to a change in the control signal.

REFERENCES:
patent: 6838939 (2005-01-01), Jaussi
patent: 7009449 (2006-03-01), Habring et al.
patent: 63-280505 (1988-11-01), None

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