Amplifier circuit

Details Amplifier circuit Amplifier circuit

2007-07-23

2008-12-02

Pascal, Robert (Department: 2817)

Amplifiers

Signal feedback

At least one push-pull signal stage

C330S104000

Reexamination Certificate

active

07459971

ABSTRACT:
The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.

REFERENCES:
patent: 5684433 (1997-11-01), Madni et al.
patent: 6720830 (2004-04-01), Andreou et al.
patent: 6825724 (2004-11-01), Jaussi
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patent: 2001-223546 (2001-08-01), None
patent: 2001-274640 (2001-10-01), None
patent: 2003-283266 (2003-10-01), None
Japanese Office dated Nov. 20, 2007 for Japanese Patent Application Action No. 2004-206492.

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