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    • 51. 发明授权
    • Power semiconductor device and method of manufacturing the same
    • 功率半导体器件及其制造方法
    • US08643056B2
    • 2014-02-04
    • US13229203
    • 2011-09-09
    • Kiyoshi KimuraYasuto SumiHiroshi OhtaHiroyuki Irifune
    • Kiyoshi KimuraYasuto SumiHiroshi OhtaHiroyuki Irifune
    • H01L29/66
    • H01L29/0634H01L29/0638H01L29/0696H01L29/0878H01L29/1095H01L29/402H01L29/66712H01L29/7395H01L29/7802H01L29/7811H01L29/872
    • A power semiconductor device includes a first semiconductor layer of a first conductivity type, a first drift layer, and a second drift layer. The first drift layer includes a first epitaxial layer of the first conductivity type, a plurality of first first-conductivity-type pillar layers, and a plurality of first second-conductivity-type pillar layers. The second drift layer is formed on the first drift layer and includes a second epitaxial layer of the first conductivity type, a plurality of second second-conductivity-type pillar layers, a plurality of second first-conductivity-type pillar layers, a plurality of third second-conductivity-type pillar layers, and a plurality of third first-conductivity-type pillar layers. The plurality of second second-conductivity-type pillar layers are connected to the first second-conductivity-type pillar layers. The plurality of second first-conductivity-type pillar layers are connected to the first first-conductivity-type pillar layers. The plurality of third second-conductivity-type pillar layers are arranged on the first epitaxial layer.
    • 功率半导体器件包括第一导电类型的第一半导体层,第一漂移层和第二漂移层。 第一漂移层包括第一导电类型的第一外延层,多个第一第一导电型柱层和多个第一第二导电型柱层。 第二漂移层形成在第一漂移层上,并且包括第一导电类型的第二外延层,多个第二第二导电型柱层,多个第二第一导电型柱层,多个第二导电型柱层 第三第二导电型柱层和多个第三第一导电型柱层。 多个第二第二导电型柱层与第一第二导电型柱层连接。 多个第二第一导电型柱层与第一第一导电型柱层连接。 多个第三第二导电型柱层布置在第一外延层上。
    • 54. 发明申请
    • MOTOR CONTROLLING DEVICE
    • 电机控制装置
    • US20110175563A1
    • 2011-07-21
    • US12987299
    • 2011-01-10
    • Jun YAMADAShigeru KamioKiyoshi Kimura
    • Jun YAMADAShigeru KamioKiyoshi Kimura
    • G05B7/02
    • G05B7/02
    • A motor controlling device includes an encoder to output pulse signals with a predetermined angle interval as a rotor of a motor is rotated. An energized phase of the motor is sequentially switched by detecting a rotation position of the rotor based on a value of counting the signals. An initial drive controlling portion executes an initial drive to switch the energized phase with a predetermined pattern after the device is activated so as to learn a relationship among the count value, the rotation position and the energized phase. An initial drive prohibiting portion prohibits the execution of the initial drive until a predetermined time is elapsed after the initial drive is finished.
    • 电动机控制装置包括编码器,当电动机的转子旋转时,输出具有预定角度间​​隔的脉冲信号。 基于对信号进行计数的值,通过检测转子的旋转位置来依次切换电动机的通电相位。 初始驱动控制部分在器件启动之后执行初始驱动以切换具有预定图案的通电相位,以便学习计数值,旋转位置和通电相位之间的关系。 初始驱动禁止部分禁止执行初始驱动,直到在初始驱动完成之后经过预定时间。
    • 59. 发明授权
    • Rotary actuator
    • 旋转执行机构
    • US07326143B2
    • 2008-02-05
    • US11086306
    • 2005-03-23
    • Kiyoshi KimuraTaku ItohShigeru Yoshiyama
    • Kiyoshi KimuraTaku ItohShigeru Yoshiyama
    • F16H1/32
    • H02K7/116F16H1/32F16H59/08F16H2061/326H02K7/083
    • A radial inner portion of a rotor core, where a rotor core and a rotor shaft are connected, has an electromagnetically excessive capacity. A recess is provided at the radial inner portion of the rotor core. The recess is a cylindrical bore retracting in the axial direction from the front surface of the rotor core, facing to a reduction gear unit, toward the rear surface of the rotor core. A sun gear bearing, supporting a sun gear of the reduction gear unit, is disposed at least partly in the recess. Extending the sun gear bearing in the axial direction brings the effects of preventing inclination of the sun gear, improving transmission efficiency of the reduction gear unit, and producing a large output torque without increasing the overall size.
    • 转子铁芯和转子轴连接的转子铁心的径向内部具有电磁过剩的能力。 在转子铁心的径向内部设有凹部。 凹部是从转子芯的前表面朝向转子芯的后表面朝向减速齿轮单元的轴向方向缩回的圆柱形孔。 支撑减速齿轮单元的太阳齿轮的太阳齿轮轴承至少部分地设置在凹部中。 沿轴向延伸太阳齿轮轴承具有防止太阳齿轮倾斜的效果,提高减速机组的传动效率,并且在不增加总体尺寸的情况下产生大的输出扭矩。
    • 60. 发明授权
    • Synchronous motor control system
    • 同步电机控制系统
    • US07323834B2
    • 2008-01-29
    • US11090004
    • 2005-03-28
    • Kiyoshi KimuraTaku ItohShigeru Yoshiyama
    • Kiyoshi KimuraTaku ItohShigeru Yoshiyama
    • H02P1/00
    • H02K19/103F16H2061/326H02K7/116
    • A synchronous motor control system includes a motor including a stator having a plurality of sets of stator teeth and phase coils, a rotor having a plurality of rotor teeth disposed opposite the stator teeth and a stopper for restricting the rotation angle of the rotor relative to the stator and a control unit for sequentially controlling electric supply to the phase coils to rotate the rotor to a prescribed rotation position. The motor is controlled by the control unit to operate through the following steps of supplying current to a specific group of the phase coils, sequentially supplying current to the phase coils to rotate the rotor in one direction at a speed not to step out of synchronization to rotate the rotor until it is stopped by the means for restricting, and sequentially supplying current to the phase coils to rotate the rotor in the other direction at a speed not to step out of synchronization until the number of times of current supply becomes a prescribed number.
    • 同步电动机控制系统包括电动机,其包括具有多组定子齿和相位线圈的定子,具有与定子齿相对设置的多个转子齿的转子和用于限制转子相对于转子的旋转角度的止动器 定子和控制单元,用于顺序地控制对相线圈的供电以将转子旋转到规定的旋转位置。 电动机由控制单元控制,以通过以下步骤操作:向特定组的相线圈提供电流,顺序地向相线提供电流,以使转子沿一个方向以不脱离同步的速度旋转, 使转子旋转直到被限制装置停止,并且顺序地向相位线圈提供电流以使转子沿另一方向以不脱离同步的速度旋转,直到供电次数变为规定数 。