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1.发明授权Cam and crank sensor with current limiting open collector output for conducted emissions improvement 有权凸轮和曲柄传感器具有限流开路集电极输出，用于导电排放改善公开(公告)号：US07603892B2
公开(公告)日：2009-10-20
申请号：US11446470
申请日：2006-06-02
IPC分类号： G01M19/00
CPC分类号： G01D3/021 , F02D41/009
摘要： A sensor apparatus and method include a sensor configured on an integrated circuit, which includes a current limiting open collector output stage configured in association with the integrated circuit. The current limiting open collector output stage reduces a fall time and a di/dt associated with an output signal of the sensor and a ringing produced thereof in order to improve EMC and conducted emissions required of the sensor.
摘要翻译： 一种传感器装置和方法，包括配置在集成电路上的传感器，其包括与集成电路相关联地配置的限流开路集电极输出级。 限流集电极输出级减少与传感器的输出信号相关联的下降时间和di / dt以及其产生的振铃，以便改善传感器所需的EMC和传导发射。
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2.发明申请Cam and crank sensor with current limiting open collector output for conducted emissions improvement 有权凸轮和曲柄传感器具有限流开路集电极输出，用于导电排放改善公开(公告)号：US20070277587A1
公开(公告)日：2007-12-06
申请号：US11446470
申请日：2006-06-02
CPC分类号： G01D3/021 , F02D41/009
摘要： A sensor apparatus and method include a sensor configured on an integrated circuit, which includes a current limiting open collector output stage configured in association with the integrated circuit. The current limiting open collector output stage reduces a fall time and a di/dt associated with an output signal of the sensor and a ringing produced thereof in order to improve EMC and conducted emissions required of the sensor.
摘要翻译： 一种传感器装置和方法，包括配置在集成电路上的传感器，其包括与集成电路相关联地配置的限流开路集电极输出级。 限流集电极输出级减少与传感器的输出信号相关联的下降时间和di / dt以及其产生的振铃，以便改善传感器所需的EMC和传导发射。
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公开(公告)号：US07005915B2
公开(公告)日：2006-02-28
申请号：US10789070
申请日：2004-02-27
申请人： Wayne T. Kilian , Jason M. Chilcote
发明人： Wayne T. Kilian , Jason M. Chilcote
IPC分类号： H03F7/06
CPC分类号： G01D5/142 , G01D3/021 , H03F3/181 , H03F3/45071 , H03F2203/45361
摘要： Two bridge type transducers are coupled in series with their outputs each driving one of a pair of differential amplifiers, with the outputs tied together in a push-pull configuration. In further embodiments, push-pull operation is obtained by matching amplifier gain components and using current mirrors. Lower voltage operation may be achieved by simple diode level shifting of the transducer outputs. In one embodiment, the transducers comprise Hall effect sensors.
摘要翻译： 两个桥式换能器与它们的输出串联耦合，每个驱动一对差分放大器中的一个，其中输出以推挽配置连接在一起。 在另外的实施例中，通过匹配放大器增益分量并使用电流镜来获得推挽操作。 低电压操作可以通过传感器输出的简单二极管电平移位来实现。 在一个实施例中，换能器包括霍尔效应传感器。
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4.发明授权公开(公告)号：US06717789B2
公开(公告)日：2004-04-06
申请号：US10008899
申请日：2001-12-05
申请人： Perry A. Holman , Jason M. Chilcote
发明人： Perry A. Holman , Jason M. Chilcote
IPC分类号： H02H322
摘要： A power supply rejection circuit and method thereof for capacitively-stored reference voltages is disclosed. The power supply rejection circuit generally comprises a comparison circuit for comparing a signal associated with a power supply such as, for example, a Wheatstone bridge configuration, to a stored reference voltage, such that the comparison circuit includes at least one existing capacitor therein. At least one additional capacitor can be then coupled to the comparison circuit, such that the additional capacitor creates a capacitively-coupled voltage divider. This capacitively-coupled voltage divider negates the first order effects of power supply noise in the system. This effect significantly reduces the effect of power supply noise and improves signal jitter associated with the comparison circuit during a comparison of the signal to the stored reference voltage utilizing the comparison circuit.
摘要翻译： 公开了一种用于电容存储的参考电压的电源抑制电路及其方法。 电源抑制电路通常包括比较电路，用于将与诸如惠斯通电桥配置的电源相关联的信号与存储的参考电压进行比较，使得比较电路在其中包括至少一个现有的电容器。 然后可以将至少一个附加电容器耦合到比较电路，使得附加电容器产生电容耦合分压器。 该电容耦合分压器消除了系统中电源噪声的一阶影响。 这种效应显着降低了电源噪声的影响，并且在利用比较电路比较信号与存储的参考电压之间，改善与比较电路相关联的信号抖动。
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公开(公告)号：US07915886B2
公开(公告)日：2011-03-29
申请号：US11668131
申请日：2007-01-29
申请人： Joel D. Stolfus , Jason M. Chilcote
发明人： Joel D. Stolfus , Jason M. Chilcote
IPC分类号： G01P3/44
CPC分类号： G01P3/487 , G01P13/045
摘要： A first magnetic sensor produces a first output signal in response to movement of a target such as a multi-pole ring magnet, and a second magnetic sensor produces a second output signal in response to movement of the target. The first and second magnetic sensors may be corresponding magnetoresistor sensors, the first and second magnetic sensors may be intertwined, the first and second magnetic sensors may be oriented at an angle with respect to one another so as to produce a difference in phase between the first and second output signals, the first and second magnetic sensors may be arranged so as to produce a 90° phase difference between the first and second output signals, and/or the first and second magnetic sensors may be formed on a semiconductor substrate.
摘要翻译： 第一磁传感器响应于诸如多极环形磁体的目标的移动而产生第一输出信号，并且第二磁传感器响应于目标的移动而产生第二输出信号。 第一和第二磁传感器可以是对应的磁阻传感器，第一和第二磁传感器可以相互缠绕，第一和第二磁传感器可以相对于彼此成一定角度定向，从而产生第一和第二磁传感器之间的相位差 和第二输出信号，第一和第二磁性传感器可以被布置成在第一和第二输出信号之间产生90°的相位差，和/或第一和第二磁性传感器可以形成在半导体衬底上。
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6.发明授权Short circuit protection for a high or low side driver with low impact to driver performance 有权对驾驶员性能低影响的高侧或低侧驾驶员的短路保护公开(公告)号：US06597553B2
公开(公告)日：2003-07-22
申请号：US10026752
申请日：2001-12-18
IPC分类号： H02H320
CPC分类号： H03K17/0826
摘要： A voltage driver having a pass transistor using a sensing diode and disabling transistor to sense and disable the driver during a short circuit condition. No current sense resistors or other devices in series with the pass transistor are used. During a short circuit condition, the collector-emitter (or drain-source) voltage of the pass transistor prevents the sensing diode from conducting which causes the disabling transistor to remove the control signal to the pass transistor. This latches the driver output off, protecting the driver from the short circuit condition. Recycling the control signal unlatches the protection, allowing another attempt to turn on the driver.
摘要翻译： 具有传感晶体管的电压驱动器，其使用感测二极管，并且在短路状态下禁用晶体管来感测和禁用驱动器。 不使用与传输晶体管串联的电流检测电阻器或其他器件。 在短路状态期间，传输晶体管的集电极 - 发射极（或漏极 - 源极）电压防止感测二极管导通，这导致禁用晶体管去除传输晶体管的控制信号。 这会锁定驱动器输出，保护驱动器免受短路情况的影响。 回收控制信号解除保护，允许另一次尝试打开驱动程序。
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公开(公告)号：US20080007255A1
公开(公告)日：2008-01-10
申请号：US11483481
申请日：2006-07-10
申请人： Stewart D. Johnson , EuGene D. Alfors , Lawrence E. Franzee , Joseph K. Murdock , Jason M. Chilcote , John S. Patin
发明人： Stewart D. Johnson , EuGene D. Alfors , Lawrence E. Franzee , Joseph K. Murdock , Jason M. Chilcote , John S. Patin
IPC分类号： G01B7/14
摘要： Multiple magnetic sensing transducers can detect the position of a target. For example, a linear array of transducers can detect a target's linear position. A master and slave arrangement can reduce the cost and size of a system containing multiple magnetic sensing transducers. The master contains circuitry for voltage regulation and processing logic as well as a magnetic sensing transducer. The slaves contain a magnetic sensing transducer and little else. As such, the slave units are small and inexpensive. The slaves obtain power from the master, produce detection signals, and pass the detection signals to the master. The master interprets the detection signals along with an internal detection produced by the master's internal magnetic sensing transducer to produce a position signal.
摘要翻译： 多个磁感应传感器可以检测目标的位置。 例如，换能器的线性阵列可以检测目标的线性位置。 主从配置可以降低包含多个磁传感器的系统的成本和尺寸。 主器件包含用于电压调节和处理逻辑的电路以及磁传感器。 从站包含一个磁传感器，另外一些。 因此，从属单元是小而便宜的。 从站从主站获取电源，产生检测信号，并将检测信号传递给主站。 主机将检测信号与主机内部磁感应传感器产生的内部检测一起解释，产生位置信号。
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公开(公告)号：US06727689B1
公开(公告)日：2004-04-27
申请号：US10631850
申请日：2003-07-24
IPC分类号： G01P3489
CPC分类号： G01D5/2448 , G01P3/4802 , G01P3/488 , G01P3/489
摘要： An apparatus and method for detecting gear features is provided. The apparatus includes a magnetic-sensing element, a thresholding module, and an output module. The magnetic-sensing element may provide a sensor-output signal indicative of the presence of a gear feature. The thresholding module may (i) transform the sensor-output signal into a characteristic waveform, which is also indicative of the presence of the gear feature; (ii) detect a first difference between the characteristic waveform and a reference signal, and responsively provide a tracking signal that tracks this difference; and (iii) detect a second difference between the tracking and reference signals, and responsively adjust the sensor-output signal. Adjustment may be performed (i) as a function of the second difference when it falls below a given threshold and (ii) by a predetermined amount when the second difference satisfies the given threshold. The output module may produce an output signal as a function of the characteristic waveform and the reference signals.
摘要翻译： 提供一种用于检测齿轮特征的装置和方法。 该装置包括磁感元件，阈值模块和输出模块。 磁传感元件可以提供指示齿轮特征存在的传感器输出信号。阈值模块可以（i）将传感器输出信号转换成特征波形，其也指示齿轮特征的存在 ; （ii）检测特征波形和参考信号之间的第一差异，并且响应地提供跟踪该差异的跟踪信号; 并且（iii）检测跟踪信号和参考信号之间的第二差异，并且响应地调整传感器输出信号。调整可以在（i）当其低于给定阈值时作为第二差异的函数执行（ii） 当第二差异满足给定阈值时的预定量。 输出模块可以产生作为特征波形和参考信号的函数的输出信号。
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公开(公告)号：US07834616B2
公开(公告)日：2010-11-16
申请号：US11677855
申请日：2007-02-22
申请人： Joel D. Stolfus , Jason M. Chilcote
发明人： Joel D. Stolfus , Jason M. Chilcote
IPC分类号： G01P3/44
CPC分类号： G01P3/487 , G01D5/145 , G01D5/2451 , G01P3/488 , G01P3/489 , G01P13/045
摘要： A first magnetic sensor is formed on a semiconductor substrate, and the first magnetic sensor produces a first output signal in response to movement of a multi-pole magnet. A second magnetic sensor is formed on the semiconductor substrate so as to be intertwined with the first magnetic sensor and so as to be at a predetermined angle with respect to the first magnetic sensor. The second magnetic sensor produces a second output signal in response to movement of the multi-pole magnet. The predetermined angle is between 0° and 180° exclusive, and the predetermined angle is sufficient to produce a difference in phase between the first and second output signals. An output signal converter converts the first and second output signals to a linear signal.
摘要翻译： 第一磁传感器形成在半导体衬底上，并且第一磁传感器响应于多极磁体的移动产生第一输出信号。 第二磁传感器形成在半导体衬底上，以与第一磁传感器相互缠绕，并相对于第一磁传感器处于预定角度。 第二磁传感器响应于多极磁体的运动产生第二输出信号。 该预定角度在0°和180°之间是专有的，并且预定角度足以产生第一和第二输出信号之间的相位差。 输出信号转换器将第一和第二输出信号转换成线性信号。
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10.发明授权公开(公告)号：US07279891B1
公开(公告)日：2007-10-09
申请号：US11453533
申请日：2006-06-15
IPC分类号： G01R33/02
CPC分类号： G01R33/09 , B82Y25/00 , G01R33/093
摘要： A magnetic sensing method and apparatus include a plurality of bridge circuits, wherein each bridge circuit or element within a bridge is formed on a separate permalloy layer comprising a plurality of permalloy bridge runners. The permalloy bridge runners can be selected such that each permalloy bridge runner possesses a selectable wafer anisotropy to a length of the permalloy bridge runner in order to form a magnetic sensor based on the bridge circuits, maximize the magnetic sensitivity of the magnetic sensor, maximize the matching between bridges and independently control the wafer anisotropy through the use of multiple bridge circuits configured on separate permalloy layers.
摘要翻译： 磁感测方法和装置包括多个桥接电路，其中桥中的每个桥接电路或元件形成在包括多个坡莫合金桥接件的单独的坡莫合金层上。 坡莫合金桥接器可以被选择成使得每个坡莫合金桥接器具有对坡莫合金桥接浇道的长度可选择的晶片各向异性，以形成基于桥接电路的磁传感器，使磁传感器的磁敏度最大化， 桥之间的匹配，并且通过使用配置在单独的坡莫合金层上的多个桥接电路独立地控制晶片各向异性。
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