公开(公告)号：US09179504B2

公开(公告)日：2015-11-03

申请号：US13062302

申请日：2010-07-30

Applicant: Shun Kazama ,  Masaki Tagome ,  Makoto Kitabatake

Inventor： Shun Kazama ,  Masaki Tagome ,  Makoto Kitabatake

IPC: H05B6/04 ,  H05B6/06 ,  H02M1/14

CPC classification number: H05B6/062 ,  H02M1/14 ,  H05B6/04

Abstract: To aim to reduce ripple current flowing through a capacitor in a power converter apparatus including a converter, the capacitor and an inverter. A current sensor 6 is connected between a capacitor 5 and an inverter circuit 7 for detecting current Iinv flowing from the capacitor 5 to the inverter circuit 7. A frequency detecting subunit 11 performs fast Fourier transform on a waveform of the current Iinv to detect a frequency of a frequency component having the largest amplitude. Also, the frequency detecting subunit 12 detects a zero-cross point of the frequency component having the largest amplitude. Then a carrier signal control subunit 13 performs control such that a frequency and a rise time of a PWM carrier signal for driving the converter circuit 4 match the frequency and the zero-cross point that have been detected by the frequency detecting subunit 11 and the phase detecting subunit 12.

Abstract translation: 旨在减少在包括转换器，电容器和逆变器的功率转换器装置中流过电容器的纹波电流。 电流传感器6连接在电容器5和逆变器电路7之间，用于检测从电容器5流向逆变器电路7的电流Iinv。频率检测子单元11对电流Iinv的波形执行快速傅里叶变换，以检测频率 具有最大振幅的频率分量。 此外，频率检测子单元12检测具有最大振幅的频率分量的零交叉点。 然后，载波信号控制子单元13执行控制，使得用于驱动转换器电路4的PWM载波信号的频率和上升时间与由频率检测子单元11检测到的频率和零交叉点相匹配， 检测子单元12。

公开(公告)号：US08508180B2

公开(公告)日：2013-08-13

申请号：US13637136

申请日：2012-02-02

Applicant: Masaki Tagome ,  Shun Kazama

Inventor： Masaki Tagome ,  Shun Kazama

IPC: H02P1/46

CPC classification number: H02M7/797 ,  H02M2001/0074 ,  H02M2001/327 ,  H02P25/22 ,  H02P27/06

Abstract: A motor drive apparatus receiving power from a power source and driving a motor with independent polyphase systems of excitation coils, comprises: a control circuit and power converters each corresponding to one system, each including an inverter circuit, an interrupter circuit, and a temperature detector, the inverter circuits being connected in series to the power source and, while not short-circuited, supplying power to the excitation coil, wherein the control circuit detects an operating state of the motor, short-circuits the inverter circuits and interrupts the interrupter circuits for a subset of power converters defined according to the operating state, such that a source voltage is supplied to non-short-circuited inverter circuits, and, when a power converter exceeds a predetermined temperature, the control circuit short-circuits the inverter circuit and interrupts the interrupter circuit thereof, and, in another power converter not exceeding the predetermined temperature, operates the inverter circuit and connects the interrupter circuit.

Abstract translation: 一种电动机驱动装置，其从动力源接收动力并用独立的多相励磁线圈系统驱动电动机，其特征在于，包括：控制电路和功率转换器，分别对应于一个系统，每个系统包括逆变器电路，断续器电路和温度检测器 逆变器电路与电源串联连接，并且在没有短路的情况下向励磁线圈供电，其中控制电路检测到电动机的运行状态，使逆变器电路短路并中断断续电路 对于根据工作状态定义的功率转换器的子集，使得源电压被提供给非短路的逆变器电路，并且当功率转换器超过预定温度时，控制电路使逆变器电路短路， 中断其断续电路，并且在不超过预定温度的另一功率转换器中操作 连接逆变电路并连接断路器电路。

公开(公告)号：US08390165B2

公开(公告)日：2013-03-05

申请号：US12995143

申请日：2009-05-28

Applicant: Noriyoshi Nishiyama ,  Masaki Tagome ,  Yasuhiro Kondo ,  Makoto Kitabatake ,  Shun Kazama

Inventor： Noriyoshi Nishiyama ,  Masaki Tagome ,  Yasuhiro Kondo ,  Makoto Kitabatake ,  Shun Kazama

IPC: H02K3/04 ,  H02K1/00

CPC classification number: H02K21/222 ,  H02K3/28 ,  H02K29/03

Abstract: Provided is a synchronous motor including a rotor having magnetic poles distributed circumferentially along a rotation direction of the rotor at equal intervals, and a stator having stator teeth arranged circumferentially along the rotation direction of the rotor, each tooth wound with a stator coil by concentrated winding. Every M consecutive stator teeth belong to one of stator teeth groups arranged at equal intervals. The M consecutive stator teeth in each stator teeth group are arranged at intervals different from the intervals of the magnetic poles of the rotor. The stator coils wound around the M consecutive stator teeth are connected to separate terminals. A motor driver supplies currents of different phases to the stator coils via the respective terminals.

Abstract translation: 本发明提供一种同步电动机，其具有转子，该转子具有沿着转子的旋转方向等间隔地周向分布的磁极，定子具有沿着转子的旋转方向周向配置的定子齿，每个齿通过集中绕组卷绕定子线圈 。 每个M个连续的定子齿属于以等间隔布置的定子齿组之一。 每个定子齿组中的M个连续的定子齿以与转子的磁极间隔不同的间隔排列。 缠绕在M个连续的定子齿上的定子线圈连接到分离的端子。 电机驱动器通过各个端子向定子线圈提供不同相的电流。

公开(公告)号：US20110101906A1

公开(公告)日：2011-05-05

申请号：US12997871

申请日：2010-04-12

Applicant: Masaki Tagome

Inventor： Masaki Tagome

IPC: H02P25/22

CPC classification number: H02P25/22 ,  H02K3/28 ,  H02K11/33 ,  H02K21/22 ,  H02K2213/03 ,  H02K2213/06 ,  H02P27/08

Abstract: The present invention aims to provide a synchronous motor drive system that is capable of suppressing ripples in current while reducing switching loss. The system includes three-phase inverters 201-203, a control circuit 400 for controlling the operations of the three-phase inverters and a synchronous motor 300 including a plurality of three-phase coils. To control the operations of the three-phase inverters, the control circuit 400 causes the three-phase inverters 201 and 203 and the three-phase inverter 202 to use different carrier frequencies to generate three-phase AC power, and each of the three-phase inverters supplies a different one of the three-phase coils with three-phase AC power.

Abstract translation: 本发明的目的在于提供一种能够抑制电流波动同时减少开关损耗的同步电动机驱动系统。 该系统包括三相逆变器201-203，用于控制三相逆变器的操作的控制电路400和包括多个三相线圈的同步电动机300。 为了控制三相逆变器的动作，控制电路400使三相逆变器201,203和三相逆变器202使用不同的载波频率来产生三相AC电力， 三相交流电源提供不同的三相线圈。

公开(公告)号：US20100176783A1

公开(公告)日：2010-07-15

申请号：US12376493

申请日：2008-06-19

Applicant: Masaki Tagome

Inventor： Masaki Tagome

IPC: G05F1/10

CPC classification number: H03K17/145 ,  H03K17/04123 ,  H03K17/08122 ,  H03K17/08142 ,  H03K17/163 ,  H03K17/302 ,  H03K17/567 ,  H03K2217/0036

Abstract: A gate voltage detecting circuit 201 detects a gate voltage Vgs of a switching device 11, and when the gate voltage is less than a predetermined voltage that is set to be less than a threshold voltage of the switching device 11, outputs an H-level boost instruction signal. A voltage control circuit 103, when the boost instruction signal is at the L level, outputs a predetermined voltage V1 of a control power supply 102 as it is, and when the boost instruction signal is at the H level, outputs a voltage V2 obtained by boosting the predetermined voltage V1. The drive signal output circuit 104 amplifies a voltage of a PWM pulse output from a PWM pulse output circuit 111 to a voltage output from the voltage control circuit 103. Therefore, a drive signal from the drive signal output circuit 104 to the switching device 11 initially becomes the boosted voltage V2 when the PWM pulse goes to the H level, and then becomes the predetermined voltage V1 when the gate voltage Vgs of the switching device 11 increases to a predetermined voltage. Therefore, a switching loss of the switching device can be suppressed.

Abstract translation: 栅极电压检测电路201检测开关器件11的栅极电压Vgs，并且当栅极电压小于设定为小于开关器件11的阈值电压的预定电压时，输出H电平升高 指令信号。 电压控制电路103，当升压指令信号处于L电平时，原样输出控制电源102的预定电压V1，当升压指令信号为H电平时，输出由 提高预定电压V1。 驱动信号输出电路104将从PWM脉冲输出电路111输出的PWM脉冲的电压放大为从电压控制电路103输出的电压。因此，最初从驱动信号输出电路104向开关装置11的驱动信号 当PWM脉冲变为H电平时变为升压电压V2，然后当开关器件11的栅极电压Vgs增加到预定电压时变为预定电压V1。 因此，可以抑制开关器件的开关损耗。

公开(公告)号：US20070110424A1

公开(公告)日：2007-05-17

申请号：US10580926

申请日：2005-04-13

Applicant: Tomokuni Iijima ,  Satoshi Tamaki ,  Takashi Haruguchi ,  Masaki Tagome

Inventor： Tomokuni Iijima ,  Satoshi Tamaki ,  Takashi Haruguchi ,  Masaki Tagome

IPC: G03B3/10

CPC classification number: H04N5/2257 ,  G02B7/026 ,  G02B7/04 ,  G02B7/08

Abstract: The present invention provides a camera module including: a lens portion (10) including at least one lens (11); an imaging element (4) having a light-receiving surface that is substantially perpendicular to an optical axis direction of the lens (11); a fixed portion (30) provided on an outer peripheral side of the lens portion (10); a first elastic body (41a) that is provided on a side opposite to the imaging element (4) side with respect to the lens (11) and couples the lens portion (10) and the fixed portion (30); and a second elastic body (41b) that is provided on the imaging element (4) side with respect to the lens (11) and couples the lens portion (10) and the fixed portion (30). The first elastic body (41a) and the second elastic body (41b) have the same shape. The first elastic body (41a) and the second elastic body (41b) are arranged so as to oppose each other while sharing a common central axis. The second elastic body (41b) is arranged so that so that the shape of the second elastic body (41b) is different from a shape of the first elastic body (41a) projected in the optical axis direction of the lens (11).

Abstract translation: 本发明提供了一种相机模块，包括：透镜部分（10），包括至少一个透镜（11）; 具有基本上垂直于所述透镜（11）的光轴方向的光接收表面的成像元件（4）; 设置在所述透镜部（10）的外周侧的固定部（30） 第一弹性体（41a），其相对于所述透镜（11）设置在与所述摄像元件（4）侧相反的一侧，并且联接所述透镜部分（10）和所述固定部分（30）; 以及相对于所述透镜（11）设置在所述摄像元件（4）侧并耦合所述透镜部（10）和所述固定部（30）的第二弹性体（41a）。 第一弹性体（41a）和第二弹性体（41a）具有相同的形状。 第一弹性体（41a）和第二弹性体（41a）布置成在共享共同的中心轴线的同时彼此相对。 第二弹性体（41a）被布置成使得第二弹性体（41b）的形状与在透镜（11）的光轴方向上突出的第一弹性体（41a）的形状不同 ）。

公开(公告)号：US07095195B2

公开(公告)日：2006-08-22

申请号：US10812289

申请日：2004-03-29

Applicant: Masaki Tagome ,  Hideaki Mori ,  Hisanori Nagase ,  Makoto Gotou

Inventor： Masaki Tagome ,  Hideaki Mori ,  Hisanori Nagase ,  Makoto Gotou

IPC: H02P7/00

CPC classification number: G11B19/20 ,  G11B19/2054

Abstract: In a motor and a disk drive apparatus in accordance with the present invention, a position detecting part 30 comprises a detection signal switching circuit 39A, a noise elimination circuit 38 and a detection circuit 39B, and the detection signal switching circuit 39A is configured to output an inverted detection signal obtained by logically inverting a detection signal until the rotation speed reaches a predetermined rotation speed after the beginning of starting or until a position detection pulse signal FG is detected a predetermined number of times; position detection operation is carried out only during the ON operation of PWM, whereby PWM sensorless starting is carried out.

Abstract translation: 在根据本发明的电动机和磁盘驱动装置中，位置检测部分30包括检测信号切换电路39A，噪声消除电路38和检测电路39B，检测信号切换电路39A是 被配置为输出通过逻辑反转检测信号而获得的反转检测信号，直到开始起动之后转速达到预定转速，或者直到检测到位置检测脉冲信号FG为止预定次数; 仅在PWM的ON操作期间执行位置检测操作，由此执行PWM无传感器启动。

公开(公告)号：US08405341B2

公开(公告)日：2013-03-26

申请号：US12997871

申请日：2010-04-12

Applicant: Masaki Tagome

Inventor： Masaki Tagome

IPC: H02P25/22 ,  H02P27/06 ,  H02P9/04

CPC classification number: H02P25/22 ,  H02K3/28 ,  H02K11/33 ,  H02K21/22 ,  H02K2213/03 ,  H02K2213/06 ,  H02P27/08

Abstract: The present invention aims to provide a synchronous motor drive system that is capable of suppressing ripples in current while reducing switching loss. The system includes three-phase inverters 201-203, a control circuit 400 for controlling the operations of the three-phase inverters and a synchronous motor 300 including a plurality of three-phase coils. To control the operations of the three-phase inverters, the control circuit 400 causes the three-phase inverters 201 and 203 and the three-phase inverter 202 to use different carrier frequencies to generate three-phase AC power, and each of the three-phase inverters supplies a different one of the three-phase coils with three-phase AC power.

Abstract translation: 本发明的目的在于提供一种能够抑制电流波动同时减少开关损耗的同步电动机驱动系统。 该系统包括三相逆变器201-203，用于控制三相逆变器的操作的控制电路400和包括多个三相线圈的同步电动机300。 为了控制三相逆变器的动作，控制电路400使三相逆变器201,203和三相逆变器202使用不同的载波频率来产生三相AC电力， 三相交流电源提供不同的三相线圈。

公开(公告)号：US20110168697A1

公开(公告)日：2011-07-14

申请号：US13062302

申请日：2010-07-30

Applicant: Shun Kazama ,  Masaki Tagome ,  Makoto Kitabatake

Inventor： Shun Kazama ,  Masaki Tagome ,  Makoto Kitabatake

IPC: H05B6/04 ,  H02M7/44

CPC classification number: H05B6/062 ,  H02M1/14 ,  H05B6/04

Abstract: To aim to reduce ripple current flowing through a capacitor in a power converter apparatus including a converter, the capacitor and an inverter. A current sensor 6 is connected between a capacitor 5 and an inverter circuit 7 for detecting current Iinv flowing from the capacitor 5 to the inverter circuit 7. A frequency detecting subunit 11 performs fast Fourier transform on a waveform of the current Iinv to detect a frequency of a frequency component having the largest amplitude. Also, the frequency detecting subunit 12 detects a zero-cross point of the frequency component having the largest amplitude. Then a carrier signal control subunit 13 performs control such that a frequency and a rise time of a PWM carrier signal for driving the converter circuit 4 match the frequency and the zero-cross point that have been detected by the frequency detecting subunit 11 and the phase detecting subunit 12.

Abstract translation: 旨在减少在包括转换器，电容器和逆变器的功率转换器装置中流过电容器的纹波电流。 电流传感器6连接在电容器5和逆变器电路7之间，用于检测从电容器5流向逆变器电路7的电流Iinv。频率检测子单元11对电流Iinv的波形执行快速傅里叶变换，以检测频率 具有最大振幅的频率分量。 此外，频率检测子单元12检测具有最大振幅的频率分量的零交叉点。 然后，载波信号控制子单元13执行控制，使得用于驱动转换器电路4的PWM载波信号的频率和上升时间与由频率检测子单元11检测到的频率和零交叉点相匹配， 检测子单元12。

公开(公告)号：US07590341B2

公开(公告)日：2009-09-15

申请号：US10580926

申请日：2005-04-13

Applicant: Tomokuni Iijima ,  Satoshi Tamaki ,  Takashi Haruguchi ,  Masaki Tagome

Inventor： Tomokuni Iijima ,  Satoshi Tamaki ,  Takashi Haruguchi ,  Masaki Tagome

IPC: G03B13/34 ,  G02B7/04

CPC classification number: H04N5/2257 ,  G02B7/026 ,  G02B7/04 ,  G02B7/08

Abstract: A camera module including: a lens portion including at least one lens; an imaging element; a fixed portion; a first elastic body that is provided on a side opposite to the imaging element side with respect to the lens and couples the lens portion and the fixed portion; and a second elastic body that is provided on the imaging element side with respect to the lens and couples the lens portion and the fixed portion. The first elastic body and the second elastic body have the same shape. The first elastic body and the second elastic body are arranged so as to oppose each other while sharing a common central axis. The second elastic body is arranged so that so that the shape of the second elastic body is different from a shape of the first elastic body projected in the optical axis direction of the lens.

Abstract translation: 一种相机模块，包括：透镜部分，其包括至少一个透镜; 成像元件; 固定部分 第一弹性体，其相对于所述透镜设置在与所述摄像元件侧相对的一侧，并且连接所述透镜部和所述固定部; 以及第二弹性体，其相对于所述透镜设置在所述摄像元件侧，并且联接所述透镜部和所述固定部。 第一弹性体和第二弹性体具有相同的形状。 第一弹性体和第二弹性体被布置成在共享共同的中心轴线的同时彼此相对。 第二弹性体被布置成使得第二弹性体的形状不同于在透镜的光轴方向上投影的第一弹性体的形状。