Method and apparatus for regulated low voltage charge pump
US5694308A · kind A · utility
83Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1995 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Jul 3, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Generation of an output voltage (28) greater than that of a reference voltage (20) is accomplished using a self starting low voltage charge pump (10). A start-up clock circuit (12) comprising a ring oscillator (40) is used to generate a ting oscillator clock signal (63) which can be used allow the charge pump (10) to begin operation before an external clock signal (44) is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.