Sensor interfaces, sensor arrangements, and open circuit detection methods for sensor interfaces and arrangements
US10732231B2 · kind B2 · utility
0Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2017 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor interface includes a sensor circuit, a drive circuit connected to the sensor circuit with active and inactive states, and a back-bias circuit. The back-bias circuit is connected between the drive circuit and the sensor circuit. The back-bias circuit is arranged to allow current to flow from the drive circuit to the sensor circuit when the drive circuit is in the active state. The back-bias circuit is also arranged to limit current flow from the drive circuit to the sensor circuit when the drive circuit is in the inactive state. Sensor arrangements and open circuit detection methods are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.