Capacitive charge pump
US8823380B2 · kind B2 · utility
37Cited by
161References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Sep 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25875
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One or more charge pumps may be used to amplify the output voltage from a chemically-sensitive pixel that comprises one or more transistors. A charge pump may include a number of track stage switches, a number of boost phase switches and a number of capacitors. The capacitors are in parallel during the track phase and in series during the boost phase, and the total capacitance is divided during the boost phase while the total charge remains fixed. Consequently, the output voltage is pushed up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.