Magnetic sensor device
US8866474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensor device for generating a logic output in accordance with a magnetic field intensity applied to a magnetoelectric conversion element includes: a comparator for inputting amplified output signals of the magnetoelectric conversion element, and outputting a comparison result; and a logic circuit for performing arithmetic processing on an output signal of the comparator. Only when the logic output is changed by a change in the magnetic field intensity, the logic circuit performs successive matching determination of logic outputs a plurality of times. Thus, the variation in determination for detection or canceling of a magnetic field intensity, which is caused by noise generated from respective constituent elements included in the magnetic sensor device and external noise, may be reduced while suppressing electric power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.