LOW POWER MAGNETIC FIELD SENSOR
    4.
    发明申请
    LOW POWER MAGNETIC FIELD SENSOR 有权
    低功率磁场传感器

    公开(公告)号:US20080315865A1

    公开(公告)日:2008-12-25

    申请号:US11767549

    申请日:2007-06-25

    IPC分类号: G01P3/48

    摘要: A magnetic field sensor for low power applications includes a magnetic field sensing element that, during sample intervals, provides a signal proportional to a sensed magnetic field and also includes a comparator circuit that, during the sample intervals, compares the magnetic field signal to threshold levels to generate a sensor output signal indicative of a strength of the magnetic field. According to a dual sample rate feature, initially the magnetic field signal is sampled at a first predetermined sample rate and, following detection of a transition of the sensor output signal, is sampled at a second, faster predetermined sample rate for a predetermined interval. According to a user-programmable sample rate feature, a user may select to operate the sensor at a fixed, predetermined sample rate or at a user-specified sample rate. The magnetic field sensor may also or alternatively detect the speed and/or direction of rotation of a rotating magnetic article.

    摘要翻译: 用于低功率应用的磁场传感器包括磁场感测元件,其在采样间隔期间提供与感测磁场成比例的信号,并且还包括比较器电路,其在采样间隔期间将磁场信号与阈值电平进行比较 以产生表示磁场强度的传感器输出信号。 根据双采样率特征,首先以第一预定采样速率对磁场信号进行采样,并且在检测到传感器输出信号的转变之后,以预定间隔以第二更快的预定采样速率采样。 根据用户可编程的采样率特征,用户可以选择以固定的,预定的采样率或以用户指定的采样率来操作传感器。 磁场传感器还可以或者替代地检测旋转磁性制品的转速和/或旋转方向。

    Hall-effect based linear motor controller
    5.
    发明授权
    Hall-effect based linear motor controller 有权
    基于霍尔效应的线性电机控制器

    公开(公告)号:US08084969B2

    公开(公告)日:2011-12-27

    申请号:US11865118

    申请日:2007-10-01

    IPC分类号: H02K41/00 H02K41/02

    摘要: A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input.

    摘要翻译: 提出了一种用于线性控制系统的直线运动控制装置。 线性运动控制装置包括用于驱动线圈的线圈驱动器,该线圈在被驱动时通过具有磁体的运动装置进行线性运动。 线性运动控制装置还包括用于检测与线性运动相关联的磁场的磁场传感器和将磁场传感器的输出和线圈驱动器的输入连接到外部控制器的接口。 该接口包括用于将磁场传感器输出信号与线圈驱动器输入相关联的反馈回路。

    HALL-EFFECT BASED LINEAR MOTOR CONTROLLER
    7.
    发明申请
    HALL-EFFECT BASED LINEAR MOTOR CONTROLLER 有权
    基于霍尔效应的线性电机控制器

    公开(公告)号:US20120008929A1

    公开(公告)日:2012-01-12

    申请号:US13240159

    申请日:2011-09-22

    IPC分类号: G03B13/36 G03B3/10

    摘要: A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input.

    摘要翻译: 提出了一种用于线性控制系统的直线运动控制装置。 线性运动控制装置包括用于驱动线圈的线圈驱动器,该线圈在被驱动时通过具有磁体的运动装置进行线性运动。 线性运动控制装置还包括用于检测与线性运动相关联的磁场的磁场传感器和将磁场传感器的输出和线圈驱动器的输入连接到外部控制器的接口。 该接口包括用于将磁场传感器输出信号与线圈驱动器输入相关联的反馈回路。

    Low power magnetic field sensor
    8.
    发明授权
    Low power magnetic field sensor 有权
    低功率磁场传感器

    公开(公告)号:US08008908B2

    公开(公告)日:2011-08-30

    申请号:US11767549

    申请日:2007-06-25

    IPC分类号: G01P3/42

    摘要: A magnetic field sensor for low power applications includes a magnetic field sensing element that, during sample intervals, provides a signal proportional to a sensed magnetic field and also includes a comparator circuit that, during the sample intervals, compares the magnetic field signal to threshold levels to generate a sensor output signal indicative of a strength of the magnetic field. According to a dual sample rate feature, initially the magnetic field signal is sampled at a first predetermined sample rate and, following detection of a transition of the sensor output signal, is sampled at a second, faster predetermined sample rate for a predetermined interval. According to a user-programmable sample rate feature, a user may select to operate the sensor at a fixed, predetermined sample rate or at a user-specified sample rate. The magnetic field sensor may also or alternatively detect the speed and/or direction of rotation of a rotating magnetic article.

    摘要翻译: 用于低功率应用的磁场传感器包括磁场感测元件,其在采样间隔期间提供与感测磁场成比例的信号,并且还包括比较器电路,其在采样间隔期间将磁场信号与阈值电平进行比较 以产生表示磁场强度的传感器输出信号。 根据双采样率特征,首先以第一预定采样速率对磁场信号进行采样,并且在检测到传感器输出信号的转变之后,以预定间隔以第二更快的预定采样速率采样。 根据用户可编程的采样率特征,用户可以选择以固定的,预定的采样率或以用户指定的采样率来操作传感器。 磁场传感器还可以或者替代地检测旋转磁性制品的转速和/或旋转方向。

    Hall-effect based linear motor controller
    10.
    发明授权
    Hall-effect based linear motor controller 有权
    基于霍尔效应的线性电机控制器

    公开(公告)号:US08716959B2

    公开(公告)日:2014-05-06

    申请号:US13240442

    申请日:2011-09-22

    IPC分类号: H02K41/02

    摘要: A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input.

    摘要翻译: 提出了一种用于线性控制系统的直线运动控制装置。 线性运动控制装置包括用于驱动线圈的线圈驱动器,该线圈在被驱动时通过具有磁体的运动装置进行线性运动。 线性运动控制装置还包括用于检测与线性运动相关联的磁场的磁场传感器和将磁场传感器的输出和线圈驱动器的输入连接到外部控制器的接口。 该接口包括用于将磁场传感器输出信号与线圈驱动器输入相关联的反馈回路。