Apparatus and methods for biasing power amplifiers
US8717101B2 · kind B2 · utility
29Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2012 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jun 2, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.