Charge pump circuit and methods of operation thereof
US8264273B2 · kind B2 · utility
30Cited by
11References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2008 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of generating a voltage supply (Vout+, Vout−) from a single input supply (+VDD), comprising connecting at least one flying capacitor (Cf) to at least one reservoir capacitor (CR1, CR2) and to the input supply in repeated cycles so as to generate a voltage on said reservoir capacitor, the cycles differing between at least two modes so that each mode generates a different voltage on said reservoir capacitor the method including changing from an existing one of said modes to enter a new one of said modes during operation, and operating in at least one transitional mode for a period prior to entering fully said new mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.