Fractional mirror ratio technique for digital remote temperature sensors, and related systems, methods, and devices
US11808641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2022 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems, methods and devices relate to remote temperature sensing responsive to fractional currents used to bias a remote temperature diode. Fractional currents may be selected to simplify at least some temperature calculations performed using digital logic. Values of at least two voltage changes may be determined at least partially based on values of voltages generated across a pair of nodes at least partially responsive to excitation currents. Such pair of nodes associated with sensing paths coupled with a remote diode. A value of temperature may be determined at least partially based on the values of at least two voltage changes and a stored value of a fractional mirror ratio. The fractional mirror ratio represents a relationship between current magnitudes of excitation currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.