Amplifier with dynamically adaptable supply current
US6008698A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | May 18, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/507
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An adaptable DC power consumption circuit is provided, wherein the current supplied to an RF amplifier is dynamically varied from a desired level. A feedback control loop is formed between the power terminal and the control terminal of the RF amplifier. A controller influences the feedback control loop to properly set the supply current at the desired minimum level necessary to maintain linear operation of the RF amplifier. The output of the RF amplifier influences the feedback control loop to dynamically vary the supply current from the desired level. In this manner, linear operation of the RF amplifier can be maintained while maximizing the power efficiency of the RF amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.