Low-consumption regulator for a charge pump voltage generator and related system and method
US7403405B2 · kind B2 · utility
14Cited by
8References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Jul 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A regulator circuit for a charge pump voltage generator includes a voltage comparator circuit that performs a voltage comparison between a charge pump output voltage and a reference voltage. A circuit responsive to the voltage comparator circuit conditions a charge pump clocking to the result of the voltage comparison. The voltage comparator circuit includes a sampling circuit for sampling the charge pump output voltage at a sampling rate. A sampling rate control circuit is responsive to the voltage comparisons for controlling the sampling rate according to the result of the voltage comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.