Amplifier system with dynamically-adjusted supply voltage

Details Amplifier system with dynamically-adjusted supply voltage Amplifier system with dynamically-adjusted supply voltage

2008-12-10

2010-06-22

Choe, Henry K (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

C330S296000

Reexamination Certificate

active

07741914

ABSTRACT:
An amplifier system may include an output stage configured to provide an amplified output signal at an output thereof based on an input signal, the output stage being connected between first and second supply voltages. A dynamic power supply control system provides the first and second supply voltages, the dynamic power supply being configured to adjust the first and second supply voltages as a function of the input signal such that a difference between the first and second supply voltages remains substantially constant.

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T. Samei, et al., “Highest Efficiency and Super Quality Audio Amplifier Using MOS Power FET's in Class G Operation,” IEEE Trans. Consumer Electron., vol. CE-24, Aug. 1978, pp. 300-307 (Best available copy—marked-up by unknown person).

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