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    Electromagnetic drive circuit
    2.
    发明授权
    Electromagnetic drive circuit 失效
    电磁驱动电路

    公开(公告)号：US4866564A

    公开(公告)日：1989-09-12

    申请号：US164429

    申请日：1988-03-04

    申请人： Hiroshi Aoki

    发明人： Hiroshi Aoki

    IPC分类号： G04C3/00 ,  G04C3/02 ,  G04C3/027 ,  G04C3/06

    CPC分类号： G04C3/0276 ,  G04C3/064

    摘要： Herein disclosed is an electromagnetic drive circuit for driving a pendulum or the like, comprising: a coil for detecting and driving a permanent magnet; a reference voltage source having a variable reference voltage; a comparator for generating an output when the induced voltage of the coil exceeds the reference voltage; a pulse generator for generating a drive pulse in response to generation of the output of the comparator; a driver responsive to the drive pulse for feeding a drive current to the coil; and a controller responsive to the output of the comparator for controlling the reference voltage in accordance with the amplitude of the induced voltage. It is possible to integrate the most of construction and to eliminate the disadvantage of generating the drive pulses at the level of the induced voltage other than its maximal point so that the automatic control can be accomplished to effect the drive efficiently at the maximal point of the induced voltage at all times. Thus, the permanent magnet can be driven efficiently with the stable amplitude.

    摘要翻译： 这里公开的是用于驱动摆锤等的电磁驱动电路，包括：用于检测和驱动永磁体的线圈; 具有可变参考电压的参考电压源; 比较器，用于当线圈的感应电压超过参考电压时产生输出; 脉冲发生器，用于响应于所述比较器的输出的产生而产生驱动脉冲; 响应于用于将驱动电流馈送到线圈的驱动脉冲的驱动器; 以及响应于比较器的输出的控制器，用于根据感应电压的幅度来控制参考电压。 可以集成大部分结构，并消除在除了其最大点之外的感应电压的水平上产生驱动脉冲的缺点，使得可以实现自动控制以在最大点处有效地驱动驱动 任何时候感应电压。 因此，能够以稳定的振幅有效地驱动永久磁铁。

    Mechanically operating pendulum clock with an electronic correcting device
    3.
    发明授权
    Mechanically operating pendulum clock with an electronic correcting device 失效
    用电子校正装置机械操作摆钟

    公开(公告)号：US4196579A

    公开(公告)日：1980-04-08

    申请号：US955556

    申请日：1978-10-27

    申请人： Konrad Schaefer

    发明人： Konrad Schaefer

    IPC分类号： G04C3/027 ,  G04C9/00 ,  G04C10/00 ,  G04C3/02 ,  G04B17/02

    CPC分类号： G04C10/00 ,  G04C3/0276

    摘要： A mechanically operating pendulum clock is provided with an electronic cocting device which comprises a quartz oscillator. An electronic frequency divider generates from the oscillation frequency of the quartz oscillator a frequency equal to that of the pendulum. A permanent magnet is arranged on the pendulum to cooperate with a control coil forming an electro-mechanical converter. The control coil is effective at least in the two turning positions of the pendulum. A contact-free pendulum sensor is also provided. A proportional electronic control device includes a converter which produces rectangular signals from the signals emitted by the quartz oscillator and the sensor, and a comparator is adapted, depending upon the reciprocal phase position of the quartz oscillator and sensor signals to transmit delay or acceleration signals to the control coil as well as opposing acceleration or delay signals to the control coil but phase-shifted by 180.degree..

    摘要翻译： 具有机械操作摆钟设置有包括石英振荡器的电子校正装置。 电子分频器从石英振荡器的振荡频率产生与摆锤相同的频率。 永久磁铁布置在摆锤上，与形成机电转换器的控制线圈配合。 控制线圈至少在摆锤的两个转动位置有效。 还提供无接触式摆锤传感器。 比例电子控制装置包括从由石英振荡器和传感器发射的信号产生矩形信号的转换器，并且根据石英振荡器的相互相位位置和传感器信号将比较器适配成传输延迟或加速度信号 控制线圈以及与控制线圈相反的加速度或延迟信号，但相移180°。

    Structure of a ultrathin clock
    4.
    发明授权
    Structure of a ultrathin clock 失效
    超薄时钟的结构

    公开(公告)号：US5442601A

    公开(公告)日：1995-08-15

    申请号：US320266

    申请日：1994-10-11

    申请人： Ching-Ti Chen

    发明人： Ching-Ti Chen

    IPC分类号： G04C3/00 ,  G04C3/027 ,  G04B17/02 ,  G04B15/00

    CPC分类号： G04C3/0276 ,  G04C3/008

    摘要： A structure of an ultrathin clock comprises generally a roughly rectangular housing having partitioned into a first chamber on upper portion for disposing a clockwork mechanism and a dial, a second chamber on median portion for disposing a set of electric circuit and batteries, and a third chamber on the lower portion for pivoting a pendulum therein and a cover which is snap fitted to the third chamber for securing the pendulum. The pendulum has a magnet on the upper end directly under an electric coil inside the second chamber so as to actuate the pendulum to swing laterally upon the variations of the electromagnetic field between the coil and the magnet. This invention has been characterized in the thickness of the housing which is greatly thiner than that of the prior art.

    摘要翻译： 超薄时钟的结构通常包括大致矩形的壳体，其在上部分隔成第一室，用于布置发条机构和表盘，中间部分上的第二室用于设置一组电路和电池，以及第三室 在其上摆动摆锤的下部，以及与第三腔卡扣配合以固定摆的盖。 钟摆具有位于第二室内的电线圈正下方的上端的磁体，以便在线圈和磁体之间的电磁场的变化时使摆锤横向摆动。 本发明的特征在于外壳的厚度比现有技术的厚度大得多。

    Electronically powered clock
    5.
    发明授权
    Electronically powered clock 失效
    电子供电时钟

    公开(公告)号：US3605401A

    公开(公告)日：1971-09-20

    申请号：US3605401D

    申请日：1969-09-08

    申请人： REICH ROBERT W

    发明人： REICH ROBERT WALTER

    IPC分类号： G04C3/027 ,  G04C3/06 ,  G04C3/04

    CPC分类号： G04C3/068 ,  G04C3/0276 ,  G04C3/065 ,  G04C3/067

    摘要： AN ELECTRONICALLY POWERED CLOCK HAVING THREE MAGNET MEANS CONCENTRICALLY FIXED TO A BALANCE WHEEL AND THREE COILS MOUNTED RESPECTIVELY COAXIALLY WITH THE MAGNET MEANS WHEN SAID BALANCE WHEEL IS IN ITS ZERO POSITION. THE SERIES-CONNECTED OUTSIDE COILS SERVING AS EXCITER COILS FOR A TRANSISTOR SWITCHING ARRANGEMENT, THE INSIDE COIL SERVING AS DRIVE COIL FOR THE BALANCE WHEEL, AND THE MAGNET MEANS HAVING SUCH DIMENSIONS AND SUCH POSITIONS WITH RESPECT TO EACH OTHER THAT EVERY MAGNET MEANS COMING

    AWAY FROM ONE COIL AND SIMULTANEOUSLY APPROACHING NEIGHBORING COIL WILL GENERATE AN EXCITATION PULSE AND AT THE SAME TIME EXPERIENCE A DRIVE PULSE.