Invention Grant
- Patent Title: Power amplifier protection
- Patent Title (中): 功率放大器保护
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Application No.: US12965223Application Date: 2010-12-10
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Publication No.: US08179648B1Publication Date: 2012-05-15
- Inventor: Wayne A. Loeb , Alireza Shirvani-Mahdavi
- Applicant: Wayne A. Loeb , Alireza Shirvani-Mahdavi
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03G3/10
- IPC: H03G3/10 ; H02H7/20

Abstract:
Systems, devices and techniques relating to power amplifier protection include, in some implementations, a circuit including: attenuation circuitry to couple with an output of detection circuitry that provides a protection signal and to couple with an input of power amplifier circuitry; turn off circuitry to couple with the power amplifier circuitry, the turn off circuitry configured to turn off the power amplifier circuitry responsive to the protection signal; and the attenuation circuitry configured to reduce a gain of the power amplifier circuitry responsive to the protection signal, the attenuation circuitry comprising a delay stage configured to continue attenuating an RF input signal of the power amplifier circuitry until after the power amplifier circuitry turns on.
Information query