发明授权
- 专利标题： Circuit arrangement for a sensor element
- 专利标题（中）： 传感器元件的电路布置
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申请号： US24574申请日： 1998-02-17
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公开(公告)号： US5973417A公开(公告)日： 1999-10-26
- 发明人: Bernhard Goetz , Ivo Russ
- 申请人： Bernhard Goetz , Ivo Russ
- 申请人地址： DEX
- 专利权人： E.G.O. Elektro-Geraetebau GmbH
- 当前专利权人： E.G.O. Elektro-Geraetebau GmbH
- 当前专利权人地址： DEX
- 优先权： DEX19706167 19970217; DEX29721213 19971129
- 主分类号： G01V3/08
- IPC分类号： G01V3/08 ; H03K17/955 ; H03K17/96 ; H01H35/00
摘要：
A circuit arrangement (11) has an activating circuit (13) for a sensor element (12) of a touch contact switch, which in one embodiment of the invention contains a frequency generator (16). The frequency generator (16) generates a frequency-modulated activating signal (17), which is applied to the sensor element (12). In another embodiment the forming of the activating signal (17) takes place in a microcontroller (48), containing eventually the activating part (13) and or the evaluation of the signal. Through passing through a large frequency range for the activating signal (17), the influence of extraneous signals, even when using a lower signal voltage, is minimized.
公开/授权文献
- USD367025S Tire 公开/授权日：1996-02-13
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