Charge pump circuit for providing multiplied voltage
US9621033B2 · kind B2 · utility
4Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D87/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump comprises one or more pump stages for providing a negative boosted output voltage. Each of the one or more pump stages comprises a P-channel transistor formed in an isolated P-well and an N-channel transistor coupled in series with the P-channel transistor. Forming the P-channel transistor in the isolated P-well essentially eliminates a raised threshold voltage due to body effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.