Charge pump circuit with regulated current output
US7492197B2 · kind B2 · utility
7Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2006 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0896
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The output current of a current sink is regulated by a reference current provided by a current source and a reference voltage obtained by filtering the output voltage of the current sink. The current sink to be regulated is a voltage control current source, where the control voltage is obtained by amplifying the difference between the reference voltage and the output voltage of the current source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.