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公开(公告)号：US20060023337A1
公开(公告)日：2006-02-02
申请号：US11212451
申请日：2005-08-26
申请人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
发明人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
IPC分类号： G11B15/46
CPC分类号： H02P6/22 , H02P2209/07
摘要： A brushless motor has first and second power transistors which form current paths to three-phase windings so as to rotate a rotor. A position detecting part produces a position signal in response to a rotation of the rotor. An activation operation block controls active operation of the first and second power transistors in response to the position signal. The activation operation block includes a starting operation part which comprises an initial phase setting part, phase changing part and a phase correcting part. The initial phase setting part sets an initial phase of drive signals to the three-phase windings in response to the level of the position signal at the timing of a start signal. The phase changing part changes sequentially the phase of the drive signals to the three-phase windings in the positive direction in response to time. The phase correcting part corrects the phase of the drive signals to the three-phase windings in response to the occurrence of the rising and falling edges of the position signal. Therefore, the brushless motor with reduced position sensor can stably start the rotation of the rotor by using one position signal of one position sensor.
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公开(公告)号：US07095195B2
公开(公告)日：2006-08-22
申请号：US10812289
申请日：2004-03-29
申请人： Masaki Tagome , Hideaki Mori , Hisanori Nagase , Makoto Gotou
发明人： Masaki Tagome , Hideaki Mori , Hisanori Nagase , Makoto Gotou
IPC分类号： H02P7/00
CPC分类号： G11B19/20 , G11B19/2054
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07110206B2
公开(公告)日：2006-09-19
申请号：US11212451
申请日：2005-08-26
申请人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
发明人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
IPC分类号： G11B15/46
CPC分类号： H02P6/22 , H02P2209/07
摘要： A brushless motor has first and second power transistors which form current paths to three-phase windings so as to rotate a rotor. A position detecting part produces a position signal in response to a rotation of the rotor. An activation operation block controls active operation of the first and second power transistors in response to the position signal. The activation operation block includes a starting operation part which comprises an initial phase setting part, phase changing part and a phase correcting part. The initial phase setting part sets an initial phase of drive signals to the three-phase windings in response to the level of the position signal at the timing of a start signal. The phase changing part changes sequentially the phase of the drive signals to the three-phase windings in the positive direction in response to time. The phase correcting part corrects the phase of the drive signals to the three-phase windings in response to the occurrence of the rising and falling edges of the position signal. Therefore, the brushless motor with reduced position sensor can stably start the rotation of the rotor by using one position signal of one position sensor.
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公开(公告)号：US06958877B2
公开(公告)日：2005-10-25
申请号：US10329849
申请日：2002-12-26
申请人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
发明人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
CPC分类号： H02P6/22 , H02P2209/07
摘要： A brushless motor has first and second power transistors which form current paths to three-phase windings so as to rotate a rotor. A position detecting part produces a position signal in response to a rotation of the rotor. An activation operation block controls active operation of the first and second power transistors in response to the position signal. The activation operation block includes a starting operation part which comprises an initial phase setting part, phase changing part and a phase correcting part. The initial phase setting part sets an initial phase of drive signals to the three-phase windings in response to the level of the position signal at the timing of a start signal. The phase changing part changes sequentially the phase of the drive signals to the three-phase windings in the positive direction in response to time. The phase correcting part corrects the phase of the drive signals to the three-phase windings in response to the occurrence of the rising and falling edges of the position signal. Therefore, the brushless motor with reduced position sensor can stably start the rotation of the rotor by using one position signal of one position sensor.
摘要翻译： 无刷电动机具有第一和第二功率晶体管，其形成到三相绕组的电流路径，以使转子旋转。 位置检测部分响应于转子的旋转产生位置信号。 激活操作块响应于位置信号控制第一和第二功率晶体管的有效操作。 激活操作块包括启动操作部分，其包括初始相位设置部分，相位改变部分和相位校正部分。 初始相位设置部分响应于在起始信号的定时处的位置信号的电平，将驱动信号的初始相位设置到三相绕组。 相位变化部根据时间顺序地将驱动信号的相位向正方向改变为三相绕组。 响应于位置信号的上升沿和下降沿的发生，相位校正部分将驱动信号的相位校正到三相绕组。 因此，具有减小位置传感器的无刷电动机可以通过使用一个位置传感器的一个位置信号来稳定地开始转子的旋转。
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公开(公告)号：US07073872B2
公开(公告)日：2006-07-11
申请号：US10896027
申请日：2004-07-22
申请人： Masaki Tagome , Hisanori Nagase , Hideaki Mori , Maki Murakami
发明人： Masaki Tagome , Hisanori Nagase , Hideaki Mori , Maki Murakami
IPC分类号： H02P7/04
摘要： A motor driving apparatus includes a position detector for detecting a rotational position of a motor to output the detection result as a position signal, a frequency comparator for comparing frequencies of continuous periods in the position signal and detecting a reversed state in which the frequency of the signal in the later period is higher than the frequency of the signal in the earlier period, a brake change over unit for selecting a reverse torque brake control which applies reverse torque to the rotor for braking or a short brake control which shorts coils of the motor for braking and instructing the brake control. The brake change over unit changes over the brake control from the reverse torque brake control to the short brake control, when a command signal for applying a reverse torque is output and the frequency comparator detects the reversed state.
摘要翻译： 电动机驱动装置包括：位置检测器，用于检测电动机的旋转位置以输出检测结果作为位置信号;频率比较器，用于比较位置信号中的连续周期的频率，并检测反转状态，其中， 后期的信号高于前一期间的信号频率，用于选择向转子施加反向转矩以进行制动的逆转矩制动控制的单位制动器变化或短路电动机的短路制动控制 用于制动和指示制动控制。 当输出用于施加反向转矩的指令信号并且频率比较器检测到反转状态时，单元上的制动器变化超过制动控制从反向转矩制动控制到短暂制动控制。
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公开(公告)号：US20050067890A1
公开(公告)日：2005-03-31
申请号：US10896027
申请日：2004-07-22
申请人： Masaki Tagome , Hisanori Nagase , Hideaki Mori , Maki Murakami
发明人： Masaki Tagome , Hisanori Nagase , Hideaki Mori , Maki Murakami
摘要： A motor driving apparatus includes a position detector for detecting a rotational position of a motor to output the detection result as a position signal, a frequency comparator for comparing frequencies of continuous periods in the position signal and detecting a reversed state in which the frequency of the signal in the later period is higher than the frequency of the signal in the earlier period, a brake change over unit for selecting a reverse torque brake control which applies reverse torque to the rotor for braking or a short brake control which shorts coils of the motor for braking and instructing the brake control. The brake change over unit changes over the brake control from the reverse torque brake control to the short brake control, when a command signal for applying a reverse torque is output and the frequency comparator detects the reversed state.
摘要翻译： 电动机驱动装置包括：位置检测器，用于检测电动机的旋转位置以输出检测结果作为位置信号;频率比较器，用于比较位置信号中的连续周期的频率，并检测反转状态，其中， 后期的信号高于前一期间的信号频率，用于选择向转子施加反向转矩以进行制动的逆转矩制动控制的单位制动器变化或短路电动机的短路制动控制 用于制动和指示制动控制。 当输出用于施加反向转矩的指令信号并且频率比较器检测到反转状态时，单元上的制动器变化超过制动控制从反向转矩制动控制到短暂制动控制。
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公开(公告)号：US09179504B2
公开(公告)日：2015-11-03
申请号：US13062302
申请日：2010-07-30
申请人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
发明人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08508180B2
公开(公告)日：2013-08-13
申请号：US13637136
申请日：2012-02-02
申请人： Masaki Tagome , Shun Kazama
发明人： Masaki Tagome , Shun Kazama
IPC分类号： H02P1/46
CPC分类号： H02M7/797 , H02M2001/0074 , H02M2001/327 , H02P25/22 , H02P27/06
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08390165B2
公开(公告)日：2013-03-05
申请号：US12995143
申请日：2009-05-28
CPC分类号： H02K21/222 , H02K3/28 , H02K29/03
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20110101906A1
公开(公告)日：2011-05-05
申请号：US12997871
申请日：2010-04-12
申请人： Masaki Tagome
发明人： Masaki Tagome
IPC分类号： H02P25/22
CPC分类号： H02P25/22 , H02K3/28 , H02K11/33 , H02K21/22 , H02K2213/03 , H02K2213/06 , H02P27/08
摘要： 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.
摘要翻译： 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。
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