Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2011-08-09
2011-08-09
Nguyen, Hieu P (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S288000, C330S259000
Reexamination Certificate
active
07994859
ABSTRACT:
A multi-stage Class AB amplifier system includes a first Class AB amplifier circuit and a second Class AB amplifier circuit. A current mirror circuit is in communication with the first Class AB amplifier circuit. A bias circuit is in communication with the current mirror circuit. A frequency compensation circuit is arranged between the bias circuit and the second Class AB amplifier circuit. A common-mode feedback circuit is in communication with the second Class AB amplifier circuit. The common-mode feedback circuit is configured to generate a feedback signal.
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Marvell World Trade Ltd.
Nguyen Hieu P
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