System and method for operating a feedback network

Details System and method for operating a feedback network System and method for operating a feedback network

2008-01-29

2008-01-29

Choe, Henry (Department: 2817)

Amplifiers

Signal feedback

Variable impedance in feedback path varied by separate...

C330S307000

Reexamination Certificate

active

11389223

ABSTRACT:
A method and apparatus are provided for operating a feedback network (300, 400). The method and apparatus operate to combine (240) a feedback signal (IF) and an incoming signal (VIN) to generate an adjusted signal (IADJ) at an input node of an amplifier element (110); amplifying the amplifier input signal in the amplifier element to produce an amplifier output signal (VOUT) at an output node of the amplifier element; processing the amplifier output signal according to a feedback operation (230) to generate the feedback signal (IF); and providing an assist current (350, 450, IASSIST) to the output node of the amplifier element, separate from an output current provided by the amplifier element.

REFERENCES:
patent: 5243345 (1993-09-01), Naus et al.
patent: 6556075 (2003-04-01), Jordan
patent: 6825717 (2004-11-01), Dettmann
patent: 7262655 (2007-08-01), Mijuskovic

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