Step motor control mechanism for electronic timepiece
    1.
    发明授权
    Step motor control mechanism for electronic timepiece 失效
    电子时钟步进电机控制机构

    公开(公告)号:US4715725A

    公开(公告)日:1987-12-29

    申请号:US860404

    申请日:1986-06-25

    IPC分类号: G04C3/14 H02P8/02 G04F5/00

    CPC分类号: G04C3/143

    摘要: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    摘要翻译: 提供了一种用于电子钟表中用于减少其电流消耗的步进电机驱动控制机构。 负载检测电路检测步进电机的负载状况,并选择性地产生表示其预定负载条件的负载状态信号。 提供驱动和控制电路,用于接收由分频器电路产生的低频计时信号和当负载检测电路选择性地产生负载检测信号时的负载检测信号。 响应于施加到其上的负载检测信号的存在或不存在,驱动和控制电路适于改变施加到步进电动机的驱动信号的脉冲宽度的持续时间以实现其驱动。

    Step motor control mechanism for electronic timepiece

    公开(公告)号:US4599005A

    公开(公告)日:1986-07-08

    申请号:US742832

    申请日:1985-06-10

    CPC分类号: G04C3/143

    摘要: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    Step motor control mechanism for electronic timepiece
    3.
    发明授权
    Step motor control mechanism for electronic timepiece 失效
    电子时钟步进电机控制机构

    公开(公告)号:US4212156A

    公开(公告)日:1980-07-15

    申请号:US839867

    申请日:1977-10-06

    IPC分类号: G04C3/14 H02P8/02 G04C3/00

    CPC分类号: G04C3/143

    摘要: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low-frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    摘要翻译: 提供了一种用于电子钟表中用于减少其电流消耗的步进电机驱动控制机构。 负载检测电路检测步进电机的负载状况,并选择性地产生表示其预定负载条件的负载状态信号。 提供驱动和控制电路,用于接收由分压器电路产生的低频计时信号和负载检测信号,当负载检测电路选择性地产生时。 响应于施加到其上的负载检测信号的存在或不存在,驱动和控制电路适于改变施加到步进电动机的驱动信号的脉冲宽度的持续时间以实现其驱动。

    Step motor control mechanism for electronic timepiece

    公开(公告)号:US4522507A

    公开(公告)日:1985-06-11

    申请号:US430292

    申请日:1982-09-30

    CPC分类号: G04C3/143

    摘要: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    Step motor control mechanism for electronic timepiece

    公开(公告)号:US4370065A

    公开(公告)日:1983-01-25

    申请号:US133046

    申请日:1980-03-24

    CPC分类号: G04C3/143

    摘要: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    Step motor control mechanism for electronic timepiece
    6.
    发明授权
    Step motor control mechanism for electronic timepiece 失效
    电子时钟步进电机控制机构

    公开(公告)号:US4192131A

    公开(公告)日:1980-03-11

    申请号:US870957

    申请日:1978-01-19

    IPC分类号: G04C3/14 G04C3/00

    CPC分类号: G04C3/143

    摘要: A step motor driving and control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor by detecting the signals induced in the drive coil of the step motor after each stepping of the rotor. The load detection circuitry selectively produces a load condition signal in response to detecting current peaks representative of a predetermined load condition of the step motor. The load detection circuitry is characterized by the use of MOS transistors therein for accurately detecting the occurrence of the current peaks. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal, when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

    摘要翻译: 提供了一种用于电子钟表中用于减少其电流消耗的步进马达驱动和控制机构。 负载检测电路通过在转子的每个步进之后检测步进电动机的驱动线圈中感应的信号来检测步进电动机的负载状况。 负载检测电路响应于检测到代表步进电动机的预定负载条件的电流峰值,选择性地产生负载状态信号。 负载检测电路的特征在于使用其中的MOS晶体管来精确地检测电流峰值的出现。 提供驱动和控制电路,用于当由负载检测电路选择性地产生时,接收由分压器电路和负载检测信号产生的低频计时信号。 响应于施加到其上的负载检测信号的存在或不存在,驱动和控制电路适于改变施加到步进电动机的驱动信号的脉冲宽度的持续时间以实现其驱动。