Invention Grant
US07994859B2 High-speed, multi-stage class AB amplifiers 有权
高速,多级AB类放大器

High-speed, multi-stage class AB amplifiers
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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