Patent ID: 6396259
Filing Date: 2002-05-28
Classification: B60K,F02D,G01D

Abstract:
An electronic position sensor for sensing the position of a movable member, the position sensor comprising:a magnet providing a defined magnetic field; and at least one magnetic flux sensor disposed proximate the magnet, forming a gap therebetween, the at least one magnetic flux sensor including an electronic circuit having programmable gain, offset voltage and temperature compensation, relative motion being initiated between the magnet and the at least one magnetic flux sensor in response to movement of the movable member, the relationship between the position of the movable member and an electronic circuit output in response to magnetic characteristics sensed by the at least one magnetic flux sensor resulting in a function between two defined points within a specific range of at least one magnetic flux density, the amplitude of an electronic circuit output signal representing movable member position, wherein the at least one magnetic flux sensor comprises a programmable linear ratiometric Hall-effect integrated circuit having programmable gain, offset voltage and temperature compensation.