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公开(公告)号：EP3093653B1
公开(公告)日：2018-09-26
申请号：EP15167589.9
申请日：2015-05-13
申请人： ams AG
摘要： A sensor circuit for measuring a physical or chemical quantity comprises a capacitive sensor (S). A sense and a base electrode (SE, BE) of the sensor (S) form a capacitive element (Cs) with a capacity depending on the quantity. A common electrode (GE) of the sensor (S) forms a first and a second parasitic capacitance (Csg, Cbg) together with the sense and the base electrode (SE, BE), respectively. The sensor circuit is adapted to store a charge on the capacitive element (Cs) and to read out the stored charge via the sense electrode (SE). A buffer element (B) is connected between the sense electrode (SE) and the common electrode (GE) and adapted to drive the common electrode (GE) at a voltage applied to the sense electrode (SE).
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22.发明授权CAPACITIVE SENSOR DEVICE AND METHOD FOR CALIBRATING A CAPACITIVE SENSOR DEVICE 有权电容式传感器装置和用于校准电容式传感器装置的方法
公开(公告)号：EP2727243B1
公开(公告)日：2018-05-02
申请号：EP12740512.4
申请日：2012-06-28
发明人： IVANOV, Artem
IPC分类号： H03K17/955 , G01D5/24 , G01R35/00
CPC分类号： G01R35/005 , G01D5/24 , H03K17/955 , H03K2217/94026 , H03K2217/960775
摘要： A capacitive sensor device for approach and/or contact detection has at least one generator electrode, at least one measurement electrode and at least one calibration electrode, wherein the at least one calibration electrode is arranged in a predefined distance adjacent to the at least one measurement electrode, wherein the at least one measurement electrode and the at least one calibration electrode are assigned to the generator electrode, wherein the at least one generator electrode may be loaded with a generator voltage and the at least one calibration electrode may be loaded with a calibrating voltage, and wherein the at least one calibration electrode at least may be operated in a first operating mode and a second operating mode, wherein in each of the operating modes the calibrating voltage lies between a ground voltage and the generator voltage, and the calibrating voltage is different in each operating mode.
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公开(公告)号：EP2241868B1
公开(公告)日：2018-05-02
申请号：EP10003662.3
申请日：2010-04-01
申请人： BALLUFF GmbH
发明人： Winkens, Frank
CPC分类号： G01F23/266 , G01D1/00 , G01D15/00 , H03K2217/960725 , H03K2217/960745 , H03K2217/960765
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公开(公告)号：EP3291070A1
公开(公告)日：2018-03-07
申请号：EP17187326.8
申请日：2017-08-22
发明人： KIM, Jimmyoung , CHUNG, Seokwhan
CPC分类号： G06F3/0416 , G06F3/044 , G06K9/0002 , H03K17/962 , H03K21/08
摘要： An integrator circuit device for integrating an input signal includes an integrator configured to perform integration on an input signal in a positive direction or a negative direction to generate an output voltage, and a switching controller configured to control a switch so that the integrator performs the integration on the input signal in the positive direction or the negative direction. The integrator circuit device further includes a counter configured to count a number of times an integration direction of the integrator is changed, and a controller configured to determine a final output voltage, based on the counted number of times the integration direction is changed and the output voltage.
摘要翻译： 一种用于对输入信号进行积分的积分器电路装置包括：积分器，被配置为对输入信号沿正方向或负方向进行积分以产生输出电压;以及开关控制器，被配置为控制开关以使积分器执行积分 在正方向或负方向输入信号。 积分器电路装置还包括：计数器，被配置为对积分器的积分方向改变的次数进行计数;以及控制器，被配置为基于计数的积分方向改变的次数和输出的输出来确定最终输出电压 电压。
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公开(公告)号：EP2796836B1
公开(公告)日：2018-01-10
申请号：EP13164687.9
申请日：2013-04-22
申请人： AMS AG
发明人： Christen, Thomas
IPC分类号： G01D5/24
CPC分类号： G01D5/24
摘要： In one embodiment a Capacitive sensing arrangement has a capacitive sensor (CapS) for providing a sensor signal (Sin), and a charge amplifier circuit comprising an input (In) which is connected to the capacitive sensor (CapS), a single-input amplifier (A1) with an amplifier input (Ina) and an output (Out) to provide an output voltage (Vout) as a function of the sensor signal (Sin), means (M) for providing a bias voltage (Vref) coupled between the input (In) an the amplifier input (Ina), and a feedback capacitor (CF) coupled between the output (Out) and the input (In). Furthermore, a method for capacitive sensing is defined.
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公开(公告)号：EP2192387B1
公开(公告)日：2018-01-10
申请号：EP10002647.5
申请日：2007-04-24
申请人： MEDTRONIC, INC.
发明人： Denison, Tomothy, J.
IPC分类号： G01D5/24
CPC分类号： G01D5/24
摘要： This disclosure describes a capacitive interface circuit for a low power system. The capacitive interface circuit is configured to achieve very low noise sensing of capacitance-based transducers, such as a micro-electromechanical system (MEMS)-based sensor, with high resolution and low power. The capacitive interface circuit uses a differential amplifier and correlated triple sampling (CTS) to substantially eliminate, or at least reduce, kT/C noise, as well as amplifier offset and flicker (1/f) noise, from the output of the amplifier. The capacitive interface circuit may further include an output stage that reduces glitching, i.e., clock transients, in the output signal by allowing transients in the amplifier output to settle. In this manner, the circuit can be used in a low power system to produce a stable, low-noise output.
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公开(公告)号：EP2100783B1
公开(公告)日：2017-12-20
申请号：EP09155248.9
申请日：2009-03-16
CPC分类号： B60S1/0825 , B32B17/10036 , B32B17/10174 , B32B17/10761 , B32B17/10788 , B60S1/0822 , B60S1/087 , G01D5/2405 , H05K1/0218 , H05K1/0219 , H05K1/0298 , H05K1/162 , H05K1/189 , H05K3/0058 , H05K2201/0715 , H05K2201/09336 , H05K2201/09663
摘要： A system and/or method for sensing the presence of moisture (e.g., rain) and/or other material(s) on a window such as a vehicle window (e.g., vehicle windshield, sunroof or backlite). In certain example embodiments, a plurality of sensing capacitors are supported by a window such as a vehicle windshield, the capacitors each having a different field and/or pattern. A sensing circuit outputs an analog signal that is based on and/or related to the capacitances of one or more of the sensing capacitors. In certain example embodiments, a flexible printed circuit board (PCB) mountable in or on a vehicle window is provided. First and second sensing circuits are formed on opposing sides of the flexible PCB, with each said sensing circuit comprising a plurality of different fractal structures. A ground plane is located between the first and second sensing circuits, with the ground plane being arranged so as to decouple the first and second capacitor arrays and to shield the first capacitor array from fields emanating from the second capacitor array and vice versa. The electronic device is configured to detect moisture on an exterior surface of the vehicle window, humidity on an interior surface of the vehicle window, and EMI.
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公开(公告)号：EP2261682B1
公开(公告)日：2017-12-13
申请号：EP10075617.0
申请日：2004-10-27
CPC分类号： G01D5/24 , G01D5/20 , G01R27/02 , G01R27/14 , G01R35/005
摘要： A proximity sensor for sensing the proximity of a target comprising: an electrical component for sensing the proximity of the target, said electrical component having electrical properties that vary with the proximity of the target; an impedance component (21) having a known impedance and a first end connected to a first end of said electrical component; a switch (31) connected to switch between said first end of said impedance component (21) and a second end of said impedance component (21); a signal generator connected to said second end of said impedance component (21) for generating an electrical signal for application to the impedance component and electrical component; an analogue-to-digital converter for receiving an electrical signal and for generating a digital signal; and a processor connected to the analogue-to-digital converter for receiving a digital voltage signal and for generating a proximity signal, wherein said processor (23) is adapted to control said switch to switch (31) to connect to said first and second ends of said impedance component sequentially.
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29.发明授权
公开(公告)号：EP2271949B1
公开(公告)日：2017-08-09
申请号：EP09737579.4
申请日：2009-04-27
申请人： Westport Power Inc.
发明人： DUAN, Justin
CPC分类号： G01F25/0076 , G01D3/02 , G01D5/24 , G01F23/266
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30.发明授权
公开(公告)号：EP1862806B1
公开(公告)日：2017-08-09
申请号：EP06114827.6
申请日：2006-06-01
发明人： Uhov, Andrei
CPC分类号： G01R27/2605
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