Power control for a switching mode power amplifier
US6917244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Jun 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0227
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a power control structure comprising a switching mode power amplifier for receiving an input signal, for amplifying the received input signal and for providing the amplified signal as output signal. In order to enable a power control over a large range while preserving the efficiency of the power amplifier, the structure further comprises a first control arrangement for controlling the power level of the output signal at least at higher desired power levels by adjusting a power supply provided to the switching mode power amplifier, and in addition a second control arrangement for controlling the power level of the output signal at least at lower desired power levels by adjusting the power of the input signal before it is provided to the switching mode power amplifier. The invention relates equally to a corresponding method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.