PA bias power supply efficiency optimization
US8699973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/21157
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A charge pump of a PA bias power supply, PA bias circuitry, and a process to optimize efficiency of the PA bias power supply are disclosed. The charge pump operates in one of multiple bias supply pump operating modes, which include at least a bias supply pump-up operating mode and a bias supply bypass operating mode. The process prevents selection of the bias supply bypass operating mode unless a DC power supply voltage is adequate to allow the PA bias circuitry to provide minimum output regulation voltage at a specified current. Otherwise, the bias supply pump-up operating mode is selected. The charge pump operates more efficiently in the bias supply bypass operating mode than in the bias supply pump-up operating mode; therefore, selection of the bias supply bypass operating mode, when possible, increases efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.