Single-ended-to-differential converter with common-mode voltage control
US6771127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Dec 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/32
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is a circuit to perform single-ended to differential conversion while providing common-mode voltage control. The circuit includes a converter to convert a single-ended signal to a differential signal and a stabilizing circuit adapted to receive the differential signal. The stabilizing circuit includes a sensor configured to sense a common-mode voltage level of the differential signal and a comparator having an output port coupled to the converter. The comparator is configured to compare the differential signal common-mode voltage level with a reference signal common-mode voltage level and produce an adjusting signal based upon the comparison. The adjusting signal is applied to the converter via the output port and is operative to adjust a subsequent common-mode voltage level of the differential signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.