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1. 发明申请

US20090243526A1 DEVICE AND METHOD FOR DETECTING BACK ELECTROMOTIVE FORCE PHASE AND DEVICE AND METHOD FOR CONTROLLING EXCITATION 有权
标题翻译：用于检测反电动力相的装置和方法和装置以及用于控制激励的方法
公开(公告)号：US20090243526A1
公开(公告)日：2009-10-01
申请号：US12367855
申请日：2009-02-09
申请人： Daisuke ITO , Hideaki Mori , Yasunori Yamamoto
发明人： Daisuke ITO , Hideaki Mori , Yasunori Yamamoto
IPC分类号： H02P6/18
CPC分类号： H02P6/182
摘要： In a back electromotive force phase detecting device, a timing generating unit generates a timing signal indicating a start timing, an intermediate timing and an end timing of a 180-degree electrical angle period in a detection target phase, from an excitation pulse signal. A difference calculating unit receives the timing signal, and calculates a difference between a total PWM control period of the detection target phase during a first-half 90-degree period, and a total PWM control period of the detection target phase during a second-half 90-degree period. In an excitation control device, a control unit changes the capability of driving a motor based on an output of the back electromotive force phase detecting device.
摘要翻译：在反电动势相位检测装置中，定时生成单元从激励脉冲信号生成表示检测对象相位中的180度电角度周期的开始定时，中间定时和结束定时的定时信号。差分计算单元接收定时信号，并且计算在半个90度周期期间的检测目标相位的总PWM控制周期与下半期检测目标相位的总PWM控制周期之间的差 90度时期。在励磁控制装置中，控制单元根据反电动势相位检测装置的输出来改变驱动电动机的能力。

2. 发明授权

US08030877B2 Device and method for detecting back electromotive force phase and device and method for controlling excitation 有权
标题翻译：用于检测反电动势相的装置和方法以及用于控制激励的装置和方法
公开(公告)号：US08030877B2
公开(公告)日：2011-10-04
申请号：US12367855
申请日：2009-02-09
申请人： Daisuke Ito , Hideaki Mori , Yasunori Yamamoto
发明人： Daisuke Ito , Hideaki Mori , Yasunori Yamamoto
IPC分类号： G05B19/40
CPC分类号： H02P6/182
摘要： In a back electromotive force phase detecting device, a timing generating unit generates a timing signal indicating a start timing, an intermediate timing and an end timing of a 180-degree electrical angle period in a detection target phase, from an excitation pulse signal. A difference calculating unit receives the timing signal, and calculates a difference between a total PWM control period of the detection target phase during a first-half 90-degree period, and a total PWM control period of the detection target phase during a second-half 90-degree period. In an excitation control device, a control unit changes the capability of driving a motor based on an output of the back electromotive force phase detecting device.
摘要翻译：在反电动势相位检测装置中，定时生成单元从激励脉冲信号生成表示检测对象相位中的180度电角度周期的开始定时，中间定时和结束定时的定时信号。差分计算单元接收定时信号，并且计算在半个90度周期期间的检测目标相位的总PWM控制周期与下半期检测目标相位的总PWM控制周期之间的差 90度时期。在励磁控制装置中，控制单元根据反电动势相位检测装置的输出来改变驱动电动机的能力。

3. 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。

4. 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。

5. 发明授权

US07622873B2 Motor drive device and drive method 有权
标题翻译：电机驱动装置及驱动方式
公开(公告)号：US07622873B2
公开(公告)日：2009-11-24
申请号：US11548495
申请日：2006-10-11
申请人： Go Takata , Hideaki Mori , Yasunori Yamamoto
发明人： Go Takata , Hideaki Mori , Yasunori Yamamoto
IPC分类号： H02P29/04
CPC分类号： H02P6/182
摘要： A reverse current detection unit detects the direction of the motor current during the synchronous rectifier period based on the polarity of the on voltage of a switching device contained in the motor current path, and outputs a reverse current detection signal representing the result of this detection to the PWM control unit. Change in the output of the PWM control unit that generates the drive signal for a particular switching device in the drive unit is controlled based on the reverse current detection signal and the energizing pattern of the drive unit is changed when motor current is detected in the synchronous rectifier period to be flowing in the opposite direction as in the urging period. The flow of motor current to the power supply is thus reduced and a rise in the power supply voltage can be prevented.
摘要翻译：反向电流检测单元根据电动机电流路径中包含的开关装置的导通电压的极性，在同步整流时段内检测电动机电流的方向，并将表示该检测结果的反向电流检测信号输出到 PWM控制单元。基于反向电流检测信号来控制产生用于驱动单元中的特定开关装置的驱动信号的PWM控制单元的输出的变化，并且当在同步中检测到电动机电流时，驱动单元的通电模式被改变整流器周期在与施力期相反的方向上流动。电动机电流流向电源因此减少，并且可以防止电源电压的上升。

6. 发明申请

US20080231219A1 MOTOR DRIVE APPARATUS AND MOTOR DRIVE METHOD 有权
标题翻译：电机驱动装置和电机驱动方法
公开(公告)号：US20080231219A1
公开(公告)日：2008-09-25
申请号：US12051471
申请日：2008-03-19
申请人： Hideaki Mori , Yasunori Yamamoto , Noriaki Emura
发明人： Hideaki Mori , Yasunori Yamamoto , Noriaki Emura
IPC分类号： H02P23/00
CPC分类号： H02P3/22 , H02M7/5395 , H02M2001/0009 , H02P23/0004 , H02P27/08
摘要： To reduce noise by limiting a current peak value to a predetermined value or less and by smoothing the waveforms of drive currents during the current limitation, switching control means (30) according to the present invention turns ON all of one-side drive transistors selected from the high-side drive transistors (21, 22 and 23) and the low-side drive transistors (25, 26 and 27) of power supply means (20) for a predetermined period, and turns OFF all of the other-side drive transistors for a predetermined period in response to a current control signal for the current peak value to a predetermined value or less.
摘要翻译：为了通过将电流峰值限制在规定值以下，通过平滑电流限制时的驱动电流的波形来降低噪声，根据本发明的开关控制装置（30）将从电源装置（20）的高侧驱动晶体管（21,22和23）和低侧驱动晶体管（25,26和27），并且使所有的另一侧驱动晶体管响应于当前峰值的电流控制信号达到预定值或更短的预定时间段。

7. 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。

8. 发明申请

US20060055352A1 Motor drive apparatus and motor drive method 有权
公开(公告)号：US20060055352A1
公开(公告)日：2006-03-16
申请号：US11220006
申请日：2005-09-06
申请人： Hideaki Mori , Yasunori Yamamoto
发明人： Hideaki Mori , Yasunori Yamamoto
IPC分类号： H02P7/00
CPC分类号： H02P6/18 , H02P6/10 , H02P25/03 , H02P29/50
摘要： A motor drive apparatus and motor drive method reduce vibration and acoustic noise by not requiring a non-activation period for rotor position detection, and enable stable, high efficiency motor drive. A control voltage generator generates a control voltage based on the frequency of the speed signal FG output from a speed detection unit, and the amplitude of the control voltage is controlled based on a torque control signal EC. The phase difference generator detects the phase difference between the control voltage and the zero cross signal of the motor current detected from the motor terminal voltages. A control voltage generator controls the phase of the control voltage so that the phase difference goes to zero, thus accomplishing sensor-less motor drive.

9. 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。

10. 发明授权

US07626350B2 Motor drive apparatus 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：US07626350B2
公开(公告)日：2009-12-01
申请号：US11220006
申请日：2005-09-06
申请人： Hideaki Mori , Yasunori Yamamoto
发明人： Hideaki Mori , Yasunori Yamamoto
IPC分类号： H02P7/00
CPC分类号： H02P6/18 , H02P6/10 , H02P25/03 , H02P29/50
摘要： A motor drive apparatus and motor drive method reduce vibration and acoustic noise by not requiring a non-activation period for rotor position detection, and enable stable, high efficiency motor drive. A control voltage generator generates a control voltage based on the frequency of the speed signal FG output from a speed detection unit, and the amplitude of the control voltage is controlled based on a torque control signal EC. The phase difference generator detects the phase difference between the control voltage and the zero cross signal of the motor current detected from the motor terminal voltages. A control voltage generator controls the phase of the control voltage so that the phase difference goes to zero, thus accomplishing sensor-less motor drive.
摘要翻译：电机驱动装置和电动机驱动方法通过不需要转子位置检测的非激活时间来减少振动和声音噪声，并且实现稳定，高效率的电动机驱动。控制电压发生器基于从速度检测单元输出的速度信号FG的频率产生控制电压，并且基于转矩控制信号EC来控制控制电压的幅度。相位差发生器检测从电动机端子电压检测的电动机电流的控制电压和零交叉信号之间的相位差。控制电压发生器控制控制电压的相位，使相位差达到零，从而实现无传感器的电机驱动。

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