Systems and methods for common mode level shifting
US9246477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2014 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | May 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A common mode voltage level shifting circuit including: input nodes configured to receive a differential signal with a first common mode voltage, a pair of shunt capacitors coupled between the input nodes and a corresponding pair of output nodes, a threshold voltage circuit, including the output nodes, coupled to the differential signal though the shunt capacitors, the threshold voltage circuit configured to provide a second common mode voltage for the differential signal at the output nodes, and current sources that are controlled according to a level of the first common mode voltage, the current sources coupled to the output nodes to effect the second common mode voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.