Amplitude error de-glitching circuit and method of operating
US8238853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2011 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The RF power amplifier system may reduce the corrective action of the amplitude loop during periods of relatively rapid changes in amplitude, and thus distortion can be further reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.