Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor
    1.
    发明授权
    Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor 有权
    用于非接触角度位置传感器的可编程,多圈,脉宽调制电路

    公开(公告)号:US06985018B2

    公开(公告)日:2006-01-10

    申请号:US10813329

    申请日:2004-03-29

    IPC分类号: H03K3/017

    CPC分类号: G01D5/2053

    摘要: A multi-turn pulse width modulation (PWM) generator for generating a PWM output corresponding to multiple 360 degree turns. A counter receives a reference signal, and counts a number of cycles of the reference signal to generate a binary output corresponding to the number of cycles counted. A frequency divider receives a sensor output signal, and divides the frequency of the sensor output signal by the number of turns in the multiple turns to generate a frequency divided signal. The sensor output signal has substantially the same frequency as the reference signal, but can be offset in phase from the reference signal. A demultiplexer receives the binary output, and generates a plurality of turn indicator signals, each corresponding to one of the multiple turns. A multiplexer receives the turn indicator signals and a mechanical turn indication signal, and selects one of the turn indicator signals that corresponds to the mechanical turn indication signal. At least one flip flop receives the selected one of the turn indicator signals and the frequency divided signal, and generates the PWM output using the selected one of the turn indicator signals and the frequency divided signal. The multi-turn PWM generator may be combined with a single-turn angular position sensor to form a multi-turn angular position sensor.

    摘要翻译: 一种用于产生对应于多个360度匝数的PWM输出的多匝脉宽调制(PWM)发生器。 计数器接收参考信号,并对参考信号的周期数进行计数,以生成与计数的周期数相对应的二进制输出。 分频器接收传感器输出信号,并将传感器输出信号的频率除以匝数匝数以产生分频信号。 传感器输出信号具有与参考信号基本相同的频率,但可以与参考信号相位偏移。 解复用器接收二进制输出,并且产生多个转向指示符信号,每个转向指示符信号对应于多个匝数之一。 复用器接收转向指示符信号和机械转向指示信号,并且选择对应于机械转向指示信号的转向指示符信号之一。 至少一个触发器接收转向指示符信号和分频信号中选择的一个触发器,并且使用转向指示器信号和分频信号中选择的一个产生PWM输出。 多匝PWM发生器可以与单匝角位置传感器组合以形成多匝角位置传感器。

    Pulse width modulation based digital incremental encoder
    2.
    发明授权
    Pulse width modulation based digital incremental encoder 有权
    基于脉宽调制的数字增量式编码器

    公开(公告)号:US07015832B2

    公开(公告)日:2006-03-21

    申请号:US10853330

    申请日:2004-05-25

    IPC分类号: H03M1/10

    CPC分类号: G01D5/245 G01D5/2053

    摘要: A digital incremental encoder for generating an output signal indicative of an angular position, a direction of rotation, and a speed of rotation of a shaft. A counter receives a PWM signal indicative of the angular position of the shaft and a clock signal from an angular position sensor, and generates a multi-bit output. A latch latches the multi-bit output, a first bit and a second bit of which are used to generate the output signals that include the first bit. The first bit and the second bit may be XOR'd together to generate an XOR output included in the output signals. A direction of rotation may be derived from a quadrature phase relationship between the first bit and the XOR output. The angular position sensor may be an NCAPS or MT-NCAPS. A linear position sensor may be used instead of an angular position sensor to generate the PWM signal.

    摘要翻译: 一种用于产生指示轴的角位置,旋转方向和转速的输出信号的数字增量式编码器。 计数器接收表示轴的角位置的PWM信号和来自角位置传感器的时钟信号,并产生多位输出。 锁存器锁存多位输出,其第一位和第二位用于产生包括第一位的输出信号。 第一位和第二位可以被异或在一起以产生包括在输出信号中的XOR输出。 可以从第一位和XOR输出之间的正交相位关系导出旋转方向。 角位置传感器可以是NCAPS或MT-NCAPS。 可以使用线性位置传感器代替角位置传感器来产生PWM信号。

    Digitally programmable pulse-width modulation (PWM) converter
    3.
    发明授权
    Digitally programmable pulse-width modulation (PWM) converter 有权
    数字可编程脉宽调制(PWM)转换器

    公开(公告)号:US06545621B1

    公开(公告)日:2003-04-08

    申请号:US10006092

    申请日:2001-12-06

    IPC分类号: H03M160

    CPC分类号: H03K7/08

    摘要: A digitally programmable pulse-width-modulation (PWM) converter changes a 0% to 100% duty cycle input signal to any desired start and stop duty cycle range; for example, 5% to 95%. This is achieved by the difference in start and stop duty cycles forming a ratio which determines a pair of clock frequencies for modifying the PWM signal to provide the new start and stop duty cycle parameters.

    摘要翻译: 数字可编程脉冲宽度调制(PWM)转换器将0%至100%的占空比输入信号更改为任何所需的起始和停止占空比范围; 例如5%至95%。 这是通过起始和停止占空比的差异来实现的,该比率决定了一对用于修改PWM信号的时钟频率以提供新的起始和停止占空比参数。

    PULSE WIDTH MODULATION BASED DIGITAL INCREMENTAL ENCODER
    4.
    发明申请
    PULSE WIDTH MODULATION BASED DIGITAL INCREMENTAL ENCODER 有权
    基于脉冲宽度调制的数字增益编码器

    公开(公告)号:US20050275568A1

    公开(公告)日:2005-12-15

    申请号:US10853330

    申请日:2004-05-25

    CPC分类号: G01D5/245 G01D5/2053

    摘要: A digital incremental encoder for generating an output signal indicative of an angular position, a direction of rotation, and a speed of rotation of a shaft. A counter receives a PWM signal indicative of the angular position of the shaft and a clock signal from an angular position sensor, and generates a multi-bit output. A latch latches the multi-bit output, a first bit and a second bit of which are used to generate the output signals that include the first bit. The first bit and the second bit may be XOR'd together to generate an XOR output included in the output signals. A direction of rotation may be derived from a quadrature phase relationship between the first bit and the XOR output. The angular position sensor may be an NCAPS or MT-NCAPS. A linear position sensor may be used instead of an angular position sensor to generate the PWM signal.

    摘要翻译: 一种用于产生指示轴的角位置,旋转方向和转速的输出信号的数字增量式编码器。 计数器接收表示轴的角位置的PWM信号和来自角位置传感器的时钟信号,并产生多位输出。 锁存器锁存多位输出,其第一位和第二位用于产生包括第一位的输出信号。 第一位和第二位可以被异或在一起以产生包括在输出信号中的XOR输出。 可以从第一位和XOR输出之间的正交相位关系导出旋转方向。 角位置传感器可以是NCAPS或MT-NCAPS。 可以使用线性位置传感器代替角位置传感器来产生PWM信号。

    Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor
    5.
    发明申请
    Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor 有权
    用于非接触角度位置传感器的可编程,多圈,脉宽调制电路

    公开(公告)号:US20050212577A1

    公开(公告)日:2005-09-29

    申请号:US10813329

    申请日:2004-03-29

    IPC分类号: G01D5/245 G01D5/20 H02M1/12

    CPC分类号: G01D5/2053

    摘要: A multi-turn pulse width modulation (PWM) generator for generating a PWM output corresponding to multiple 360 degree turns. A counter receives a reference signal, and counts a number of cycles of the reference signal to generate a binary output corresponding to the number of cycles counted. A frequency divider receives a sensor output signal, and divides the frequency of the sensor output signal by the number of turns in the multiple turns to generate a frequency divided signal. The sensor output signal has substantially the same frequency as the reference signal, but can be offset in phase from the reference signal. A demultiplexer receives the binary output, and generates a plurality of turn indicator signals, each corresponding to one of the multiple turns. A multiplexer receives the turn indicator signals and a mechanical turn indication signal, and selects one of the turn indicator signals that corresponds to the mechanical turn indication signal. At least one flip flop receives the selected one of the turn indicator signals and the frequency divided signal, and generates the PWM output using the selected one of the turn indicator signals and the frequency divided signal. The multi-turn PWM generator may be combined with a single-turn angular position sensor to form a multi-turn angular position sensor.

    摘要翻译: 一种用于产生对应于多个360度匝数的PWM输出的多匝脉宽调制(PWM)发生器。 计数器接收参考信号,并对参考信号的周期数进行计数,以生成与计数的周期数相对应的二进制输出。 分频器接收传感器输出信号,并将传感器输出信号的频率除以匝数匝数以产生分频信号。 传感器输出信号具有与参考信号基本相同的频率,但可以与参考信号相位偏移。 解复用器接收二进制输出,并且产生多个转向指示符信号,每个转向指示符信号对应于多个匝数之一。 复用器接收转向指示符信号和机械转向指示信号,并且选择对应于机械转向指示信号的转向指示符信号之一。 至少一个触发器接收转向指示符信号和分频信号中选择的一个触发器,并且使用转向指示器信号和分频信号中选择的一个产生PWM输出。 多匝PWM发生器可以与单匝角位置传感器组合以形成多匝角位置传感器。