Amplifiers – With periodic switching input-output
Reexamination Certificate
2008-03-18
2008-03-18
Nguyen, Khanh Van (Department: 2817)
Amplifiers
With periodic switching input-output
C330S288000
Reexamination Certificate
active
07345529
ABSTRACT:
The chopper stabilized amplifier circuit includes: an amplifier; a first current mirror coupled to an output of the amplifier through a first switch; a second current mirror coupled to the output of the amplifier through a second switch, wherein the first switch is operated out of phase with the second switch; and a summing node for combining currents from the first and second current mirrors.
REFERENCES:
patent: 6175278 (2001-01-01), Hasegawa
patent: 6980054 (2005-12-01), Okada
patent: 7088180 (2006-08-01), Lee et al.
Atrash Amer H.
Thompsen Brett J.
Brady W. James
Nguyen Khanh Van
Stewart Alan K.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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