Power amplifier with variable input voltage source
US6064269A · kind A · utility
30Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/102
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier circuit (10) utilizes a step-wise variable voltage source (22) to improve amplifier (14) operating efficiency. In one preferred embodiment, an input signal to the step-wise variable voltage source is obtained by observing an operating characteristic of the amplifier. In an alternate preferred embodiment of the present invention, a characteristic of the input signal driving the amplifier stage is used to form an input signal to the step-wise variable input voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.