Charge pump circuit control system
US7570104B2 · kind B2 · utility
15Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention discloses a charge pump circuit control system comprising a level detector, a ring oscillator, and a charge pump circuit. The level detector detects the variation of the output voltage of the charge pump circuit for generating a control signal. The ring oscillator generates a plurality of clock signals according to the control signal, and the charge pump circuit generates the output voltage according to the plurality of clock signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.