Semiconductor device
US11156645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Apr 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A semiconductor device includes an analog-digital conversion circuit that converts a voltage at a node between a reference resistor and a sensor resistor into output data, the reference resistor and the sensor resistor being connected in series. The semiconductor device calculates a resistance value of the sensor resistor using a first output data obtained in a first conversion phase and second output data obtained in a second conversion phase. In the first conversion phase, a high potential side voltage is applied to one end of the reference resistor and a low potential side voltage is applied to one end of the sensor resistor. In the second conversion phase, the low potential side voltage is applied to one end of the reference resistor and the high potential side voltage is applied to one end of the sensor resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.