Differential thermistor circuit
US10190919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Aug 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a general aspect, a circuit can include a first resistor configured to be coupled to a first terminal of a temperature-sensitive resistance, a second resistor configured to be coupled to a second terminal of the temperature-sensitive resistance and a temperature information circuit. The temperature information circuit can be configured to: receive a first voltage from the first terminal of the temperature-sensitive resistance; receive a second voltage from the second terminal of the temperature-sensitive resistance; and provide temperature information based on the first voltage and the second voltage. The temperature information circuit can include a first comparison circuit configured to determine a difference between the first voltage and the second voltage, and a second comparison circuit configured to compare an output of the first comparison circuit to a reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.