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1.发明公开Variable attenuation circuit for a differential variable reluctance sensor with temperature compensation for an initial threshold and passive RC filter 审中-公开可变衰减电路用于与温度补偿的差分Reluktanzgeber用于初始阈值和无源RC滤波器
公开(公告)号：EP1361444A2
公开(公告)日：2003-11-12
申请号：EP03076328.8
申请日：2003-05-05
Applicant: Delphi Technologies, Inc.
Inventor： Manlove, Gregory J. , Gertiser, Kevin M. , Bach, James C. , Kilgour, Gerald A.
CPC classification number: G01D5/2013 , G01D3/02 , G01P3/487 , G01P3/488 , G01P3/489
Abstract: A variable reluctance sensor interface module (25) having a variable attenuation circuit (24) and a rectifier and differential to single-ended conversion circuit (32) for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit (24) receives an input differential voltage from a magnetic sensor (15), converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit (32) converts the variably attenuated current to a voltage output. The input circuit includes an RC filter (400) that attenuates high frequency signals. An initial threshold circuit (410) generates an initial threshold voltage that compensates for internal resistance variations, caused e.g. by temperature variations.
Abstract translation: 可变磁阻传感器接口模块（25），具有用于在电流模式下操作，以衰减的差分输入电压的可变衰减电路（24）和一整流器和差分到单端的转换电路（32）。 可变衰减电路（24）接收输入，以从磁传感器（15）的差分电压的差分电压转换为电流，并且可变地衰减的电流。 整流器和差分到单端的转换电路（32）转换的可变衰减电流的电压输出。 该输入电路包括（400）RC滤波做衰减高频信号。 初始阈值电路（410）生成初始阈值电压的速率没有用于内部电阻的变化进行补偿，引起E. G. 由温度变化。
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2.发明公开Variable attenuation circuit for a differential variable reluctance sensor with temperature compensation for an initial threshold and passive RC filter 审中-公开可变衰减电路用于与温度补偿的差分Reluktanzgeber用于初始阈值和无源RC滤波器
公开(公告)号：EP1361444A3
公开(公告)日：2004-03-03
申请号：EP03076328.8
申请日：2003-05-05
Applicant: Delphi Technologies, Inc.
Inventor： Manlove, Gregory J. , Gertiser, Kevin M. , Bach, James C. , Kilgour, Gerald A.
CPC classification number: G01D5/2013 , G01D3/02 , G01P3/487 , G01P3/488 , G01P3/489
Abstract: A variable reluctance sensor interface module (25) having a variable attenuation circuit (24) and a rectifier and differential to single-ended conversion circuit (32) for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit (24) receives an input differential voltage from a magnetic sensor (15), converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit (32) converts the variably attenuated current to a voltage output. The input circuit includes an RC filter (400) that attenuates high frequency signals. An initial threshold circuit (410) generates an initial threshold voltage that compensates for internal resistance variations, caused e.g. by temperature variations.
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