Power amplifier protection
US8179648B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2010 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/435
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.