Variable feedback circuits and methods
US7256648B2 · kind B2 · utility
1Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Oct 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention includes a circuit comprising an amplifier having an input terminal, an output terminal, a positive supply voltage, and a negative supply voltage. The amplifier is configured to have a first gain. A variable feedback circuit is coupled between the input terminal and the output terminal. The difference between the voltage on the output terminal and input terminal is received by the variable feedback circuit, which changes the gain of the circuit and reduces distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.