发明名称 |
Switching apparatus having magnetoresistive elements for detecting a plurality of manually selected switching position |
摘要 |
A switching apparatus is provided which may be used for power window control systems of automotive vehicles. The switching apparatus includes an operating knob, a magnet, a magnetoresistive element, and a position determining circuit. The operating knob is manually shifted between a plurality of switching positions. The magnet moves according to the movement of the operating knob. The magnetoresistive element is placed in a magnetic field applied from the magnet and changes an electrical resistance thereof according to a variation in orientation of a magnetic flux applied to the magnetoresistive element resulting from the movement of the magnet. The position determining circuit monitors a change in electric resistance of the magnetoresistive element to determine the switching position of the operating member.
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申请公布号 |
US6150808(A) |
申请公布日期 |
2000.11.21 |
申请号 |
US19970822925 |
申请日期 |
1997.03.21 |
申请人 |
DENSO CORPORATION;ANDEN CO., LTD. |
发明人 |
YAGYU, HIROSHI;SATO, KOICHI;ITO, MAKOTO;AO, KENICHI |
分类号 |
H01H13/00;H01H9/54;H01H11/00;H01H23/00;H01H36/00;H03K17/97;(IPC1-7):G01B7/14;G01B7/30;H01H13/64;H01L43/08 |
主分类号 |
H01H13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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