Impedance adjustments in amplifiers
US8680919B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit that includes an amplifier circuit with an input impedance due to an input resistance and an input capacitance of the amplifier circuit. The input impedance of the amplifier circuit may vary with frequency. The amplifier circuit may include an amplifier and a feedback circuit configured to provide feedback to the amplifier and to maintain the input impedance at a specified value at a selected frequency by increasing the input resistance of the amplifier circuit at the selected frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.