Invention Grant
- Patent Title: High-speed, multi-stage class AB amplifiers
- Patent Title (中): 高速,多级AB类放大器
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Application No.: US12849561Application Date: 2010-08-03
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Publication No.: US07994859B2Publication Date: 2011-08-09
- Inventor: Sehat Sutardja
- Applicant: Sehat Sutardja
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade Ltd.
- Current Assignee: Marvell World Trade Ltd.
- Current Assignee Address: BB St. Michael
- Main IPC: H03F3/45
- IPC: H03F3/45

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.
Public/Granted literature
- US20110001565A1 HIGH-SPEED, MULTI-STAGE CLASS AB AMPLIFIERS Public/Granted day:2011-01-06
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