Charge pump circuit
US7688131B2 · kind B2 · utility
3Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2008 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Sep 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump circuit is provided. The charge pump circuit includes a pump unit, first through sixth switches, a fly capacitor and an output capacitor. In a first period, an input voltage and a first voltage charge at least one internal capacitor of the pump unit via a first terminal and a second terminal of the pump unit. In the second period, the internal capacitor of the pump unit provides charges to the fly capacitor via the second switch and generates a first output voltage. In the third period, the fly capacitor supplies the charges to the output capacitor via the fourth switch to generate a second output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.