Double stage compact charge pump circuit
US7772919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2008 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump circuit comprising a plurality of charge pumps connected in parallel, each charge pump receiving a plurality of clock signals, having an output (VCP) that is coupled to the output of the at least one other charge pump, and further comprising a first capacitor that is being charged by a switching circuit receiving the clock signals to charge the first capacitor, a second capacitor coupled in series with the first capacitor, the second capacitor provided between a first terminal (IN) of the charge pump and a second terminal (OUT) of the charge pump, wherein the first terminal (IN) of the charge pump is connected to a second terminal (OUT) of another charge pump and the second terminal (OUT) of the charge pump is connected to the first terminal (IN) of another charge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.