Temperature sensor architecture
US9322717B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Aug 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature sensor includes a current generator that detects a temperature and generates a temperature dependent current, the temperature dependent current having a current level corresponding to the detected temperature. A current-to-voltage converter converts the temperature dependent current into a temperature dependent voltage, the temperature dependent voltage having a voltage level corresponding to the detected temperature. A signal generator generates a pulse signal having a period determined from a voltage difference between the temperature dependent voltage and a reference voltage. A counter counts a number of cycles of a reference clock signal that occur during one cycle of the pulse signal to output a temperature code indicative of the temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.