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1. 发明授权

US07768226B2 Motor drive device and motor drive method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US07768226B2
公开(公告)日：2010-08-03
申请号：US11683667
申请日：2007-03-08
申请人： Shingo Fukamizu , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
发明人： Shingo Fukamizu , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
IPC分类号： H02P1/46
CPC分类号： H02P6/182 , H02P6/21
摘要： Problems with accuracy reading position detection signal peaks and minute phase differences in the detection current make motor drive control easily susceptible to differences in motor characteristics. The rotor position is determined based on whether or not a terminal difference voltage, which is the difference voltage between the motor terminal voltage and the pseudo-neutral-point voltage when the motor phases are selectively energized, exceeds a specific threshold value. The phase energized to start the motor is determined based on this determination and the motor is energized accordingly to start. Instead of switching directly from the search step at the initial rotor position to the back-EMF voltage mode, a search and start mode that creates initial rotor speed sufficient to start the motor is executed before entering the back-EMF voltage mode.
摘要翻译：读取位置检测信号峰值和检测电流的微小相位差的问题使电机驱动控制容易受到电机特性的差异的影响。转子位置是基于当电动机相位选择性地通电时电动机端子电压和伪中性点电压之间的差分电压是否超过特定阈值来确定终端差值电压。基于该确定确定启动电动机的相位，相应地启动电动机起动。代替直接从初始转子位置处的搜索步骤切换到反电动势电压模式，在进入反电动势电压模式之前执行产生足以启动电动机的初始转子速度的搜索和启动模式。

2. 发明授权

US07667419B2 Motor driving apparatus, motor driving method and disk driving apparatus 失效
标题翻译：电动机驱动装置，电动机驱动方法和磁盘驱动装置
公开(公告)号：US07667419B2
公开(公告)日：2010-02-23
申请号：US11766884
申请日：2007-06-22
申请人： Shingo Fukamizu , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
发明人： Shingo Fukamizu , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
IPC分类号： H02P6/18
CPC分类号： H02P6/182 , H02P6/185 , H02P6/22
摘要： A motor driving apparatus includes a virtual difference voltage detecting unit operable to detect a difference voltage between a virtual neutral point of a resistor circuit connected in parallel to motor coils and a terminal of a motor coil in non-conduction state, a rotor position detecting unit operable to detect a position of the rotor based on the difference voltage, and a controller operable to control commutation of an inverter based on the rotor position. The motor driving apparatus has a searching start mode for detecting the rotor position and energizes the coils, and a back electromotive voltage feedback mode for controlling commutation based on the back electromotive voltage. In the searching start mode, a rotor position searching process and a rotation start torque applying process are alternately performed.
摘要翻译：电动机驱动装置包括：虚拟差分电压检测单元，用于检测与电动机线圈并联连接的电阻电路的虚拟中性点与非导通状态的电动机线圈的端子之间的差分电压;转子位置检测单元可操作以基于所述差电压检测所述转子的位置，以及控制器，其可操作以基于所述转子位置来控制逆变器的换向。马达驱动装置具有用于检测转子位置并激励线圈的搜索启动模式，以及用于基于反电动势电压控制换向的反电动势电压反馈模式。在搜索开始模式中，交替执行转子位置搜索处理和旋转启动转矩施加处理。

3. 发明申请

US20080018279A1 MOTOR DRIVING APPARATUS, MOTOR DRIVING METHOD AND DISK DRIVING APPARATUS 失效
标题翻译：电动机驱动装置，电动机驱动方法和盘驱动装置
公开(公告)号：US20080018279A1
公开(公告)日：2008-01-24
申请号：US11766884
申请日：2007-06-22
申请人： Shingo FUKAMIZU , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
发明人： Shingo FUKAMIZU , Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima
IPC分类号： H02P7/00 , H02P7/06
CPC分类号： H02P6/182 , H02P6/185 , H02P6/22
摘要： A motor driving apparatus includes a virtual difference voltage detecting unit operable to detect a difference voltage between a virtual neutral point of a resistor circuit connected in parallel to motor coils and a terminal of a motor coil in non-conduction state, a rotor position detecting unit operable to detect a position of the rotor based on the difference voltage, and a controller operable to control commutation of an inverter based on the rotor position. The motor driving apparatus has a searching start mode for detecting the rotor position and energizes the coils, and a back electromotive voltage feedback mode for controlling commutation based on the back electromotive voltage. In the searching start mode, a rotor position searching process and a rotation start torque applying process are alternately performed.
摘要翻译：电动机驱动装置包括：虚拟差分电压检测单元，用于检测与电动机线圈并联连接的电阻电路的虚拟中性点与非导通状态的电动机线圈的端子之间的差分电压;转子位置检测单元可操作以基于所述差电压检测所述转子的位置，以及控制器，其可操作以基于所述转子位置来控制逆变器的换向。马达驱动装置具有用于检测转子位置并激励线圈的搜索启动模式，以及用于基于反电动势电压控制换向的反电动势电压反馈模式。在搜索开始模式中，交替执行转子位置搜索处理和旋转启动转矩施加处理。

4. 发明授权

US07531976B2 Motor drive device 有权
标题翻译：电机驱动装置
公开(公告)号：US07531976B2
公开(公告)日：2009-05-12
申请号：US11676644
申请日：2007-02-20
申请人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
发明人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
IPC分类号： H02P6/18
CPC分类号： H02P6/182 , H02P6/21
摘要： Problems with accuracy reading position detection signal peaks and minute phase differences in the detection current make motor drive control easily susceptible to differences in motor characteristics. The rotor position is determined based on whether or not a neutral point difference voltage, which is the difference voltage between the neutral point voltage and the pseudo-neutral-point voltage when the motor phases are selectively energized, exceeds a specific threshold value. The phase energized to start the motor is determined based on this determination and the motor is energized accordingly to start. Instead of switching directly from the search step at the initial rotor position to the back-EMF voltage mode, a search and start mode that creates initial rotor speed sufficient to start the motor is executed before entering the back-EMF voltage mode.
摘要翻译：读取位置检测信号峰值和检测电流的微小相位差的问题使电机驱动控制容易受到电机特性的差异的影响。转子位置是基于当电动机相位被选择性地通电时中性点电压和伪中性点电压之间的差分电压是否中性点差电压是否超过特定阈值来确定。基于该确定确定启动电动机的相位，相应地启动电动机起动。代替直接从初始转子位置处的搜索步骤切换到反电动势电压模式，在进入反电动势电压模式之前执行产生足以启动电动机的初始转子速度的搜索和启动模式。

5. 发明授权

US07535188B2 Motor driving apparatus, motor driving method and disk driving apparatus 有权
标题翻译：电动机驱动装置，电动机驱动方法和磁盘驱动装置
公开(公告)号：US07535188B2
公开(公告)日：2009-05-19
申请号：US11679939
申请日：2007-02-28
申请人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
发明人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
IPC分类号： H02P25/08
CPC分类号： H02P6/182 , G11B19/2054
摘要： A motor driving apparatus includes a neutral point difference voltage detecting unit operable to detect a difference voltage between a virtual neutral point of a resistor circuit connected in parallel to motor coils and an actual neutral point which is a common connection point of the motor coils, a rotor position detecting unit operable to detect a position of the rotor based on the difference voltage, and a controller operable to control commutation of an inverter. A rotation start torque applying process applies a rotation start pulse for providing rotation torque to the rotor based on a determined rotor position.
摘要翻译：电动机驱动装置包括：中性点差电压检测单元，用于检测与电动机线圈并联连接的电阻电路的虚拟中性点与作为电动机线圈的公共连接点的实际中性点之间的差分电压，转子位置检测单元，其可操作以基于所述差电压检测所述转子的位置;以及控制器，其可操作以控制逆变器的换向。旋转启动转矩施加处理基于确定的转子位置对转子施加用于提供旋转扭矩的旋转开始脉冲。

6. 发明申请

US20070194730A1 MOTOR DRIVE DEVICE 有权
标题翻译：电机驱动装置
公开(公告)号：US20070194730A1
公开(公告)日：2007-08-23
申请号：US11676644
申请日：2007-02-20
申请人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
发明人： Shingo Fukamizu , Yasunori Yamamoto , Shinichi Kuroshima
IPC分类号： H02P7/06
CPC分类号： H02P6/182 , H02P6/21
摘要： Problems with accuracy reading position detection signal peaks and minute phase differences in the detection current make motor drive control easily susceptible to differences in motor characteristics. The rotor position is determined based on whether or not a neutral point difference voltage, which is the difference voltage between the neutral point voltage and the pseudo-neutral-point voltage when the motor phases are selectively energized, exceeds a specific threshold value. The phase energized to start the motor is determined based on this determination and the motor is energized accordingly to start. Instead of switching directly from the search step at the initial rotor position to the back-EMF voltage mode, a search and start mode that creates initial rotor speed sufficient to start the motor is executed before entering the back-EMF voltage mode.
摘要翻译：读取位置检测信号峰值和检测电流的微小相位差的问题使电机驱动控制容易受到电机特性的差异的影响。转子位置是基于当电动机相位被选择性地通电时中性点电压和伪中性点电压之间的差分电压是否中性点差电压是否超过特定阈值来确定。基于该确定确定启动电动机的相位，相应地启动电动机起动。代替直接从初始转子位置处的搜索步骤切换到反电动势电压模式，在进入反电动势电压模式之前执行产生足以启动电动机的初始转子速度的搜索和启动模式。

7. 发明授权

US07088067B2 Motor driving apparatus and motor driving method 有权
公开(公告)号：US07088067B2
公开(公告)日：2006-08-08
申请号：US11191853
申请日：2005-07-27
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
IPC分类号： H02P7/00
CPC分类号： H02P6/10 , H02P6/18 , H02P2209/07
摘要： A motor driving apparatus has a driver circuit configuration capable of individually adjusting three phase coil currents. Coil current waveforms are formed to have a total of three phase shaft direction forces to be zero in compliance with predetermined mathematical expressions, and thus, three phase coil current profiles can be made independent of one another, and vibration-causing factors attributed to the fact that a certain phase is in an non-energized state are corrected by adjusting the current profiles of the other phases. Consequently, the vibration and the noise can be reduced.

8. 发明申请

US20060028161A1 Motor driving apparatus and motor driving method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US20060028161A1
公开(公告)日：2006-02-09
申请号：US11191853
申请日：2005-07-27
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
IPC分类号： H02P7/00
CPC分类号： H02P6/10 , H02P6/18 , H02P2209/07
摘要： A motor driving apparatus has a driver circuit configuration capable of individually adjusting three phase coil currents. Coil current waveforms are formed to have a total of three phase shaft direction forces to be zero in compliance with predetermined mathematical expressions, and thus, three phase coil current profiles can be made independent of one another, and vibration-causing factors attributed to the fact that a certain phase is in an non-energized state are corrected by adjusting the current profiles of the other phases. Consequently, the vibration and the noise can be reduced.
摘要翻译：电动机驱动装置具有能够分别调节三相线圈电流的驱动电路结构。线圈电流波形形成为具有符合预定数学表达式的总共三相轴方向力为零，因此可以使三相线圈电流分布彼此独立，并且由于事实引起的振动引起因素通过调整其它相的电流曲线来校正某一相位处于非通电状态。因此，可以降低振动和噪音。

9. 发明申请

US20070018599A1 Motor driving device and motor driving method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US20070018599A1
公开(公告)日：2007-01-25
申请号：US11490985
申请日：2006-07-21
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Yoshiaki Igarashi
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Yoshiaki Igarashi
IPC分类号： H02P25/12
CPC分类号： H02P6/182
摘要： A rotor position sensorless multiphase motor driving device includes a rotor; a plurality of phase windings; a common terminal to which one terminal of terminals at both ends of each winding is star connected; an upper-side drive transistor and a lower-side drive transistor connected to the other terminal of the winding; a commutation control unit operable to select two terminals other than the common terminal of the windings, and to turn on the corresponding pair of upper-side drive transistor and the lower-side drive transistor; a rotor position search pulse applying unit operable to apply a search pulse to the selected two terminals; and a comparing unit operable to detect a rotor position based on a response signal generated between the terminal which was unselected and the common terminal according to the search pulse application.
摘要翻译：一种无转子位置传感器的多相马达驱动装置，包括转子; 多个相绕组; 每个绕组两端的端子的一个端子星形连接的公共端子; 连接到绕组的另一端的上侧驱动晶体管和下侧驱动晶体管; 换向控制单元，其可操作以选择除绕组的公共端子之外的两个端子，并且使相应的一对上侧驱动晶体管和下侧驱动晶体管导通; 转子位置搜索脉冲施加单元，其可操作以向所选择的两个端子施加搜索脉冲; 以及比较单元，其可操作以基于根据搜索脉冲应用在未被选择的终端与公共终端之间产生的响应信号来检测转子位置。

10. 发明授权

US07298106B2 Motor driving device and motor driving method 有权
公开(公告)号：US07298106B2
公开(公告)日：2007-11-20
申请号：US11490985
申请日：2006-07-21
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Yoshiaki Igarashi
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Yoshiaki Igarashi
IPC分类号： H02P25/12
CPC分类号： H02P6/182
摘要： A rotor position sensorless multiphase motor driving device includes a rotor; a plurality of phase windings; a common terminal to which one terminal of terminals at both ends of each winding is star connected; an upper-side drive transistor and a lower-side drive transistor connected to the other terminal of the winding; a commutation control unit operable to select two terminals other than the common terminal of the windings, and to turn on the corresponding pair of upper-side drive transistor and the lower-side drive transistor; a rotor position search pulse applying unit operable to apply a search pulse to the selected two terminals; and a comparing unit operable to detect a rotor position based on a response signal generated between the terminal which was unselected and the common terminal according to the search pulse application.

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