Power supply processing for power amplifiers
US7642847B2 · kind B2 · utility
4Cited by
11References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/504
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention, generally speaking, uses multiple selectable power supply paths, a saturation detector, or combinations of the same to achieve efficient power supply processing. In one aspect of the invention, a power supply processing circuit includes a first switched converter stage and a second linear stage. Depending on the power supply desired, the first stage may be bypassed to avoid conversion losses. In another aspect of the invention, a saturation detector is used to control the first stage such that the second stage operates efficiently just short of saturation, thereby avoiding distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.