Electronic control timepiece
    1.
    发明公开
    Electronic control timepiece 失效
    Elektronische Kontrolluhr

    公开(公告)号:EP0982638A1

    公开(公告)日:2000-03-01

    申请号:EP99203757.2

    申请日:1995-08-03

    IPC分类号: G04C10/00 G04G1/00

    CPC分类号: G04C10/00 G04G19/04

    摘要: The present invention relates to a compact and thin electronic control timepiece having a long lasting time for indicating highly accurate time. The flow of an AC electromotive force (102) induced in a coil in a generator (3) powered by a power spring (1) is supplied to a step-up circuit (15) in an IC (11). The step-up circuit (15) boosts the rectified electromotive force (102) doubling to charge in a smoothing capacitor (4) as storage power. A step-up control circuit (16) generates a step-up control signal for controlling the step-up operation of the step-up circuit (15). A cycle comparing circuit (8) compares a reference cycle signal from an oscillation circuit (7) and a detected cycle signal (105) synchronized with the rotational cycle of the generator (3), generates a cycle correction signal (106) for eliminating a time difference between both signals, and outputs the signal to a load control circuit (5). The load control circuit (5) in turn changes a load current (107) on the generator (3) by appropriately selecting a load resistor for changing switching elements within an internal circuit, controls the amount of an electromagnetic brake corresponding to a current amount (107) flowing through the load resistor and thereby governs the speed of the rotation cycle of the generator (3).

    摘要翻译: 本发明涉及一种紧凑且薄型的电子控制钟表,其具有用于指示高精度时间的持久时间。 在由动力弹簧(1)供电的发电机(3)中的线圈中感应的交流电动势(102)的流动被提供给IC(11)中的升压电路(15)。 升压电路(15)将平滑电容器(4)中的整流电动势(102)增加一倍以使其充电作为存储电力。 升压控制电路(16)产生用于控制升压电路(15)的升压动作的升压控制信号。 周期比较电路(8)比较来自振荡电路(7)的参考周期信号和与发生器(3)的旋转周期同步的检测周期信号(105),生成用于消除发生器(3)的循环校正信号(106) 两个信号之间的时间差,并将该信号输出到负载控制电路(5)。 负载控制电路(5)通过适当地选择用于改变内部电路内的开关元件的负载电阻来改变发电机(3)上的负载电流(107),控制对应于电流量的电磁制动量( 107)流过负载电阻器,从而控制发电机(3)的旋转周期的速度。