Amplifier with suppression of harmonics
US6529075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Aug 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45696
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential linear amplifier includes a main differential amplification circuit, coupled to receive a differential input signal at the input of the amplifier and to generate a differential output signal at the output of the amplifier. Odd- and even-order compensation circuits respectively sample odd- and even-order harmonic currents in the main differential amplification circuit and amplify the sampled currents so as to generate odd- and even-order compensation signals for subtraction from the differential output signal. A filter provides phase matching of second- and third-order harmonic components at a desired frequency at the output of the amplifier between the differential output signal and the even- and odd-order compensation signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.