Method and apparatus for supplying power to a radio frequency power amplifier
US9525384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2015 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Sep 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0441
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and a supply modulator (SM) are provided for supplying power from a wireless transmitter to a radio frequency (RF) power amplifier. A power control signal input from a modem is received. A reference voltage is determined. An operating mode of the SM is changed by controlling a level of the reference voltage. A voltage is determined based on the level of a reference voltage. When the operating mode of the SM is an ET mode, a first output signal from a linear regulator and a second output signal from a switching regulator are combined to obtain a combined result, and the combined result is output. The first output signal is based on the voltage. When the operating mode of the SM is an APT mode, the voltage based on the reference voltage is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.