Charge pump circuit
US5650671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Jan 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump circuit including a number of pull-up stages connected in parallel with one another between a reference potential line and an output line. Each stage includes a capacitor having a first terminal connected to a charging and discharging node, and a second terminal connected to a pull-up node for switching between a first charging operating phase and a second charge transferring operating phase. The charging and discharging node is connected to the supply line via a charging transistor having a control terminal connected to a high-voltage bias node formed by the adjacent stage in the opposite operating phase, for charging the capacitor substantially up to the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.