Sensor circuit and calibration method
US9307319B2 · kind B2 · utility
3Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2013 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2410/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A read out circuit for a sensor uses a feedback loop to bias the sensor to a desired operating point, such as the maximal possible sensitivity, but without the problem of an instable sensor position as known for the conventional read-out with constant charge. The reference bias to which the circuit is controlled is also varied using feedback control, but with a slower response than the main bias control feedback loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.