Low-distortion differential circuit
US6795843B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/453
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential feedback system that minimizes even order distortion of a differential circuit. The feedback system includes a feedback circuit for use with a differential circuit to reduce even-order distortion and dc offset of a difference output signal produced by the differential circuit. The feedback circuit includes an integrator coupled to receive the difference output signal from the differential circuit and produce an integrator output signal. The feedback circuit also includes a control circuit coupled to the integrator to receive the integrator output signal to produce a control signal that is coupled to the differential circuit, wherein the control signal controls the differential circuit to reduce the even-order distortion and the DC offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.