Chopped charge pump
US7202717B2 · kind B2 · utility
8Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0896
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A chopped charge pump with matching up and down pulses including a first pair of current sources, a second pair of current sources, and a switching circuit for switching on in a first phase one current source of each pair to provide up current pulses, and the other current source of each pair to provide down current pulses, and switching on in a second phase the other current source of each pair to provide up current pulses, and the one current source of each pair to provide down current pulses to offset error in the current response of the pairs of current sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.