Apparatus and methods for biasing a power amplifier
US8587377B2 · kind B2 · utility
29Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/504
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a power amplifier system includes a power amplifier configured to amplify a radio frequency (RF) signal and a bias control circuit for generating a bias current for the power amplifier. The bias control circuit is configured to receive an envelope of the RF signal and to change an amplitude of the bias current based at least in part on the envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.