Charge pump with reduced current variation
US8319545B2 · kind B2 · utility
5Cited by
8References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuits and methods for maintaining a substantially constant input and output current for a charge pump circuit are provided which reduce current variation during switching intervals. The charge pump circuitry of the present invention maintains a current flow path from a current source to the charge pump output which minimizes or eliminates spikes normally associated with the switching intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.