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    • 1. 发明申请
    • REACTOR FOR ELECTRICAL DEVICES
    • 电器用反应器
    • US20100245016A1
    • 2010-09-30
    • US12732464
    • 2010-03-26
    • Mitsutoshi KamedaKazuo KatoTakashi AokiHiroyuki OkuhiraKouji Okamoto
    • Mitsutoshi KamedaKazuo KatoTakashi AokiHiroyuki OkuhiraKouji Okamoto
    • H01F17/04
    • H01F37/00H01F17/04H01F27/255H01F27/324H01F41/0246H01F2017/048
    • A reactor includes a tubular coil and a core. The coil generates magnetic flux when a current is supplied thereto. The core is made of magnetic powder-containing resin, and is arranged to cover the coil. An entire surface of the coil is covered with an insulation coating. The insulation coating has corner portions that cover corner portions of the coil. The corner portions of the coil are formed between two opposing end surfaces (axial end surfaces) of the coil and an inner circumference surface of the coil, and between the two axial end surfaces of the coil and an outer circumference surface of the coil, when viewed in a cross section that is perpendicular to the direction the coil is wound. Each corner portion includes a curved surface portion formed with a circularly curved surface portion having a curvature radius of 0.2 mm or more. A minimum thickness of the corner portion is 0.2 mm or more. The elastic modulus of the core is 5 to 25 GPa.
    • 反应器包括管状线圈和芯。 当向其提供电流时,线圈产生磁通量。 芯由含磁性粉末的树脂制成,并且被布置成覆盖线圈。 线圈的整个表面覆盖有绝缘涂层。 绝缘涂层具有覆盖线圈的角部的角部。 线圈的角部形成在线圈的两个相对的端面(轴向端面)和线圈的内周面之间,并且在线圈的两个轴向端面和线圈的外周面之间形成,当 在垂直于卷绕方向的横截面中观察。 每个角部包括形成有曲率半径为0.2mm以上的圆形曲面部的曲面部。 角部的最小厚度为0.2mm以上。 芯的弹性模量为5至25GPa。
    • 10. 发明申请
    • Stepping motor control circuit and analog electronic watch
    • 步进电机控制电路和模拟电子手表
    • US20100238767A1
    • 2010-09-23
    • US12661359
    • 2010-03-16
    • Keishi HonmuraSaburo ManakaKosuke YamamotoAkira TakakuraKenji OgasawaraKazumi SakumotoKazuo KatoTakanori Hasegawa
    • Keishi HonmuraSaburo ManakaKosuke YamamotoAkira TakakuraKenji OgasawaraKazumi SakumotoKazuo KatoTakanori Hasegawa
    • G04B19/04H02P8/38
    • G04C3/143H02P8/02
    • A stepping motor control circuit includes a rotation detecting means which detects an induced signal generated by rotation of a rotor of a stepping motor, and detects a rotation state of the stepping motor according to whether the induced signal exceeds a predetermined reference threshold voltage in a predetermined detection section, and a control means which controls driving of the stepping motor by using any one of a plurality of main driving pulses having energies different from each other or a correction driving pulse with energy higher than energy of each main driving pulse according to a detection result of the rotation detecting means. The detection section is divided into a first section immediately after driving by the main driving pulse, a second section after the first section and a third section after the second section. During the driving of the stepping motor by the main driving pulse, when the rotation detecting means has detected an induced signal exceeding a first reference threshold voltage in the first section and the second section, if an induced signal exceeding a second reference threshold voltage lower than the first reference threshold voltage is not detected in the third section, the control means drives the stepping motor by using the correction driving pulse.
    • 步进电动机控制电路包括旋转检测装置,其检测由步进电动机的转子旋转产生的感应信号,并且根据感应信号是否超过预定的参考阈值电压来检测步进电动机的旋转状态 检测部分和控制装置,其通过使用具有彼此不同的能量的多个主驱动脉冲中的任何一个来控制步进电机的驱动,或者根据检测来控制具有高于每个主驱动脉冲的能量的能量的校正驱动脉冲 旋转检测装置的结果。 检测部分通过主驱动脉冲被分成紧接在驱动之后的第一部分,第一部分之后的第二部分和第二部分之后的第三部分。 在通过主驱动脉冲驱动步进电机的过程中,当旋转检测装置在第一部分和第二部分检测到超过第一参考阈值电压的感应信号时,如果超过第二参考阈值电压的感应信号低于 在第三部分中没有检测到第一参考阈值电压,控制装置通过使用校正驱动脉冲来驱动步进电机。