Even order distortion cancellation in single-ended input, differential output amplifiers using feedback
US7994865B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Aug 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45681
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier and a method for converting a single ended signal to an amplified differential signal. The amplifier comprises an input configured to receive a single ended signal, a differential amplifier that outputs an amplified differential signal based on the single ended signal, and a compensator coupled to the differential amplifier and configured to inject an adjusted distortion compensating signal based on the even order distortion signal to compensate for a distortion in the amplified differential signal. The method comprises receiving a single ended signal, converting the single ended signal to an amplified differential signal, and generating a distortion compensating signal to substantially cancel an even order distortion signal injected to the differential signal by the converting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.