Integrated implementation of a voltage boost follower and method therefor
US7728663B2 · kind B2 · utility
10Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Apr 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/99
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A collector boost circuit is disclosed for providing a first voltage in a first mode of operation to a power amplifier, and another voltage in a second mode of operation to the power amplifier. The collector boost circuit uses an indicator signal derived by an RF detector to switch between the first and the second mode of operation. The another voltage is a boosted voltage greater than the first voltage and is provided when required during peak excursions to prevent amplifier clipping through a boost capacitor. The another voltage is continuous and varies in accordance with the detected peak signal amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.