Self-controlled high efficiency power amplifier
US6445247B1 · kind B1 · utility
72Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7239
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A novel and improved circuit and method for amplifying an input signal. The circuit includes an amplifier circuit having an input for receiving the input signal, and an amplifier control circuit, coupled to the amplifier circuit, for varying a supply power and a device periphery of the amplifier circuit in response to an amplitude envelope of the input signal. In this manner, the amplifier control circuit can control the linearity and the efficiency of the amplifier circuit using the characteristics of the input signal itself, without relying on any external processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.