Digital-analog conversion for shaft encoders
    1.
    发明授权
    Digital-analog conversion for shaft encoders 失效
    数字模拟转换用于轴编码器

    公开(公告)号:US4496936A

    公开(公告)日:1985-01-29

    申请号:US385134

    申请日:1982-06-04

    申请人: Dan H. Kramer

    发明人: Dan H. Kramer

    IPC分类号: G06F3/038 G06J1/00 H03K13/00

    CPC分类号: G06F3/0383 G06J1/00

    摘要: Apparatus for producing an analog signal--having a relative amplitude that is indicative of the direction and rate of rotation of a shaft--from a pair of pulse streams provided by a shaft encoder coupled to the shaft. The invention includes circuitry for comparing the phase relationship between the signals to determine direction, for generating a digital pulse of a fixed pulse-width for each pulse contained in one of the pulse streams, and integrating the time or inverted form of the digital pulse, depending upon the determined direction, to produce the analog signal.

    摘要翻译: 用于产生模拟信号的装置,具有指示轴的方向和转速的相对幅度,所述相对振幅来自由耦合到所述轴的轴编码器提供的一对脉冲流。 本发明包括用于比较信号之间的相位关系以确定方向的电路,用于为包含在一个脉冲流中的每个脉冲产生固定脉冲宽度的数字脉冲,以及对数字脉冲的时间或倒置形式进行积分, 取决于确定的方向,以产生模拟信号。