Compound sensor including a plurality of detection elements and a plurality of fault detection circuits
US9810734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2013 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Nov 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P2015/0814
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compound sensor capable of suppressing a fault which has occurred in a detection element from affecting other detection units in which no fault has occurred is provided. The compound sensor includes: a plurality of detection units including C/V conversion circuits 321a and 321b, amplifier circuits 322a and 322b, ADCs 323a and 323b, diagnosis voltage outputting DACs 327a and 327b, carrier signal generating DACs 328a and 328b and substrate voltage generating DACs 329a and 329b which are signal detection circuits provided for each of a plurality of detection elements; a power source voltage input unit 331 and a GND voltage input unit 332 shared among each of the plurality of detection units; and overcurrent switch circuits 101a and 101b which are fault detection circuits for detecting a fault of each detection element and stopping power supply to the detection unit in which the fault has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.