公开(公告)号：EP3040791A1

公开(公告)日：2016-07-06

申请号：EP14839800.1

申请日：2014-08-29

申请人： Citizen Holdings Co., Ltd. ,  Citizen Watch Co., Ltd.

发明人： TAKYO, Yu ,  SEZAKI, Shogo ,  FUKUSHIMA, Toshiaki ,  IRI, Daisuke

IPC分类号： G04C3/14

CPC分类号： G04C3/143

摘要： Provided is an electronic timepiece, including: a step motor (8); a motor driver (7); a normal drive pulse generation circuit (3) configured to output a normal drive pulse (SP) at a designated drive rank; a rotation detection pulse generation circuit (5) configured to output a detection pulse (B5 to B12, F7 to F14, F5.5) ; a rotation detection circuit (9) which comprises at least a first detection mode determination circuit (91) configured to conduct determination in a first detection mode and which is configured to detect rotation or non-rotation of a rotor; a rotation determination counter circuit (11) configured to count a number of times that the rotation has been successively detected by the rotation detection circuit (9); a first detection mode determination counter circuit (111) configured to count a number of times that a detection signal generated by the detection pulse becomes a predetermined detection pattern in the first detection mode; and a drive rank selection circuit (10) configured to designate a drive rank of the normal drive pulse (SP) based on results of the counting conducted by the rotation determination counter circuit (11) and the first detection mode determination counter circuit (111).

摘要翻译： 提供了一种电子时计，包括：步进电机（8）; 一个电机驱动器（7）; 正常驱动脉冲发生电路（3），用于输出指定驱动等级的正常驱动脉冲（SP） 旋转检测脉冲发生电路（5），其输出检测脉冲（B5〜B12，F7〜F14，F5.5）。 旋转检测电路（9），其至少包括第一检测模式确定电路（91），所述第一检测模式确定电路（91）被配置为在第一检测模式下进行确定并且被配置为检测转子的旋转或不旋转; 旋转判定计数电路（11），其对由所述旋转检测电路（9）连续检测到旋转的次数进行计数; 第一检测模式确定计数器电路（111），其被配置为对在所述第一检测模式中由所述检测脉冲生成的检测信号变为预定检测模式的次数进行计数; 以及驱动等级选择电路（10），其被配置为基于由所述旋转确定计数器电路（11）和所述第一检测模式确定计数器电路（111）进行的所述计数的结果来指定所述正常驱动脉冲（SP）的驱动等级， 。