Sensor arrangement for capacitive position detection of an object

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221015
APP PUB NO 20230046256A1
SERIAL NO

17796554

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Abstract

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A sensor arrangement for capacitive detection of an object, including: an electrode arrangement having a heating element as an electrode; a detection device providing a detection signal to a sensor electrode and capacitively detecting the presence of an object near the sensor electrode; a high-side switch connected between a heating power source having a first potential and the heating element; a low-side switch connected between the heating element and a second potential; and a gate controller closing the high-side switch and low-side switch in a heating mode and opening the high-side switch and low-side switch in a detection mode. A decoupling MOSFET is connected between the high-side switch and heating element. The gate controller closes the MOSFET in the heating mode and opens the MOSFET in the detection mode. During the detection mode, the decoupling circuit provides a third potential at a first node between the high-side switch and MOSFET.

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Patent Owner(s)

  • IEE INTERNATIONAL ELECTRONICS & ENGINEERING SA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lamesch, Laurent Reichlange, LU 71 514
Pampel, Tobias Trier, DE 1 0
Puetz, Michael Trier, DE 18 152
Rue, Bertrand Kleinbettingen, LU 2 10
Vanstraelen, Laurent Arlon, BE 1 0

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