Pressure sensor and electronic device having a second output terminal of a wheatstone bridge and a second terminal of a heat emitting diode being configured for outputting electrical signals
US12359995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Feb 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensor includes a Wheatstone bridge and a heat emitting diode. The Wheatstone bridge includes a first resistor, a second resistor, a third resistor, and a fourth resistor. The first resistor, the second resistor, the third resistor, and the fourth resistor are coupled to form a loop, the first resistor, the second resistor, and the third resistor are fixed resistors, and the fourth resistor is a varistor. A first output terminal of the Wheatstone bridge is coupled to a first terminal of the heat emitting diode, and a second output terminal of the Wheatstone bridge and a second terminal of the heat emitting diode are configured to output an electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.