Charge pump for negative voltages
US6819162B2 · kind B2 · utility
41Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump for negative voltages, having at least one stage including a high-voltage terminal and a low-voltage terminal; a first branch and a second branch, which are symmetrical and are connected between the high-voltage terminal and the low-voltage terminal and each of which comprises a respective first transistor and a respective second transistor. The first and the second transistors are all triple-well MOS transistors of one and the same polarity type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.