Charge pump circuits and methods for the same
US7439793B2 · kind B2 · utility
14Cited by
7References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/075
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump circuit may include a plurality of charge pump cells. Each charge pump cell may further include an output node for supplying charge, a pumping node for receiving a clock signal and a pumping capacitor, which may be connected between the output node and the pumping node, for storing the charge and may repeat a charge or discharge operation and/or a pre-charge operation in response to a plurality of clock signals. In the pre-charge operation, a unidirectional charge supply may be performed from a lower voltage output node to a higher voltage output node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.