Amplifiers – With periodic switching input-output
Reexamination Certificate
2007-11-13
2007-11-13
Choe, Henry (Department: 2817)
Amplifiers
With periodic switching input-output
C327S124000
Reexamination Certificate
active
11115578
ABSTRACT:
Chopper amplifiers and methods of amplification are provided. A circuit includes an adjustable modulation resistance network, an amplifier, and an adjustable feedback resistance network. The adjustable modulation resistance network receives and modulates an input signal to produce a modulated signal including varying an input resistance, which includes a switch resistance. The amplifier has an input and an output. The adjustable feedback resistance network varies a feedback resistance, which includes a switch resistance. In addition, a suppression circuit is also included that can produce the feedback signal for preventing the direct current offset signal from substantially affecting the output signal.
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Choe Henry
Marvell International Ltd.
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