Magnetic sensor

Details Magnetic sensor Magnetic sensor

2007-09-04

2007-09-04

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207210

Reexamination Certificate

active

11466560

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.

REFERENCES:
patent: 6252395 (2001-06-01), Aoyama et al.
patent: 6291990 (2001-09-01), Nakane et al.
patent: 6630821 (2003-10-01), Shinjo et al.
patent: 6870365 (2005-03-01), Yokotani et al.
patent: 2002-090181 (2002-03-01), None

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