Charge pump circuit for use in high voltage generating circuit
US6690227B2 · kind B2 · utility
13Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump circuit includes a plurality of serially connected pump stages. Each pump stage includes current paths connected between a gate terminal of a charge transfer transistor and a drain terminal thereof. One of the charge transfer paths allows charges to be transferred from the drain terminal to the gate terminal while the other path allows charges to be transferred from the gate terminal to the drain terminal. The charge pump circuit can generate a high target voltage using a very low power supply voltage (e.g., 2V or lower).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.