Amplifier circuit and integrated circuit therefor
US8115544B2 · kind B2 · utility
4Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2006 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Jan 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45212
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier circuit on a single die comprises a low voltage amplifier with a first common mode voltage and having an input and an output. A power amplifier has a second common mode voltage whose input is operably coupled to an output of the low voltage amplifier. The first common mode voltage and second common mode voltage are unequal. A compensation circuit is operably coupled to an input of the power amplifier and arranged to inject a DC-current or apply a common mode voltage into the power amplifier that is representative of a difference between the first common mode voltage and the second common mode voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.