Physical quantity sensor
US8207778B2 · kind B2 · utility
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4References
8Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 6, 2010 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a physical quantity sensor capable of improving physical quantity detection precision thereof. The physical quantity sensor includes a bridge resistance type physical quantity detection element for generating a voltage based on a bias current and a physical quantity, a current supply circuit for supplying the bias current to the physical quantity detection element, and a leakage current control circuit for causing leakage currents flowing when switches of the current supply circuit are in an off state to flow into a ground terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.