Differential charge pump
US6686794B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0896
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to some embodiments, a charge pump includes a first current source coupled to a first and a second switch, each of the first and the second switch to receive a respective component of a first differential control signal, a second current source coupled to a third and a fourth switch, each of the third and the fourth switch to receive a respective component of a second differential control signal, the first switch and the third switch coupled to a first node to provide a first component of a differential output signal, and the second switch and the fourth switch coupled to a second node to provide a second component of the differential output signal, a third current source to source current to the first node, and a fourth current source to source current to the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.