Rail-to-rail charge pump with replica circuitry
US7123085B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2004 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Dec 10, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The charge pump circuit includes: a charge pump output branch having a first transistor and a second transistor coupled in series; an output branch replica having a third transistor and a fourth transistor coupled in series; a feedback circuit coupled between the output branch and the output branch replica; a charge pump input circuit coupled to the charge pump output branch, and having first and second input branches; and an input circuit branch replica controlled by the feedback circuit and coupled to the charge pump input circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.