Magnetic sensor
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United States of America Patent
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Sep 4, 2007
Grant Date -
Aug 9, 2007
app pub date -
Aug 23, 2006
filing date -
Feb 9, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The magnetic sensor in the invention includes a detecting section that detects a change of magnetic flux due to a movement of the magnetic movable, comparator circuits constituting a converting section that converts a change of magnetic flux detected by the detecting section into an electric amount, and a D-FF circuit device, in a sensor unit having a power-supplying power terminal VB, a ground terminal GND and an output terminal VOUT. A current control section is provided to change the amount of current flowing through at least one of the power terminal and the ground terminal, correspondingly to a moving direction of the magnetic movable. Thus, a moving direction of the magnetic movable can be determined depending upon the amount of current.
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