Variable stage charge pump
US6927441B2 · kind B2 · utility
114Cited by
9References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A variable charge pump contains several individual simple charge pumps, each with a pumping capacitor and a switching mechanism. Additionally, a switching network is coupled to the individual charge pumps so that the different lines in the charge pump can be connected together in a serial mode or parallel mode (or mixed serial and parallel modes) to match the needs of the output load. The switching network is easily changed to provide the necessary driving capability as the needs of the output load changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.