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公开(公告)号：US07859205B2
公开(公告)日：2010-12-28
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： H02P23/04
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。
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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。
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公开(公告)号：US20060028161A1
公开(公告)日：2006-02-09
申请号：US11191853
申请日：2005-07-27
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。
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4.发明授权Device and method for detecting back electromotive force phase and device and method for controlling excitation 有权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。
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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
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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公开(公告)号：US07365506B2
公开(公告)日：2008-04-29
申请号：US11151057
申请日：2005-06-13
IPC分类号： H02P7/00
CPC分类号： H02P23/0004 , H02P23/26
摘要： A motor driving part has half bridge circuits in which a high potential side drive transistor and a low potential side drive transistor are connected in series to each other, and a connection point therebetween serves as a stator winding driving terminal of each phase of a motor. A rotor position detector detects a rotor position of the motor and outputs a rotor position signal. The current phase detector detects the phase of a phase current flowing in the stator winding driving terminal. A voltage signal generator controls and generates a voltage profile signal such that a first phase difference that is a difference between the phase of the phase current and the phase of the rotor position signal is kept to a predetermined electrical angle. A driving signal generator generates a PWM signal that drives the drive transistor of each phase depending on the voltage profile signal.
摘要翻译： 电动机驱动部具有半桥电路，其中高电位侧驱动晶体管和低电位侧驱动晶体管彼此串联连接，并且它们之间的连接点用作电动机各相的定子绕组驱动端子。 转子位置检测器检测电动机的转子位置并输出转子位置信号。 电流相位检测器检测在定子绕组驱动端子中流动的相电流的相位。 电压信号发生器控制并产生电压分布信号，使得作为相电流的相位与转子位置信号的相位之差的第一相位差保持在预定的电角度。 驱动信号发生器根据电压分布信号生成驱动各相的驱动晶体管的PWM信号。
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公开(公告)号：US07088067B2
公开(公告)日：2006-08-08
申请号：US11191853
申请日：2005-07-27
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.
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公开(公告)号：US20050275362A1
公开(公告)日：2005-12-15
申请号：US11151057
申请日：2005-06-13
IPC分类号： H02P7/06
CPC分类号： H02P23/0004 , H02P23/26
摘要： A motor driving device that is low in cost and capable to control the phase of a motor with high efficiency and with accuracy. A motor driving device includes a motor driving part, a rotor position detector, a current phase detector, a voltage signal generator, and a driving signal generator. The motor driving part has a plurality of half bridge circuits in which a high potential side drive transistor and a low potential side drive transistor are connected in series to each other, and a connection point therebetween serves as a stator winding driving terminal of each phase of a motor. The rotor position detector detects a rotor position of the motor and outputting a rotor position signal. The current phase detector detects the phase of a phase current flowing in the stator winding driving terminal. The voltage signal generator controls and generates a voltage profile signal such that a first phase difference that is a difference between the phase of the phase current and the phase of the rotor position signal is kept to a predetermined electrical angle. The driving signal generator generates a PWM signal that drives the drive transistor of each phase depending on the voltage profile signal.
摘要翻译： 一种电机驱动装置，其成本低，能够高精度地控制电动机的相位。 电动机驱动装置包括电动机驱动部，转子位置检测器，电流相位检测器，电压信号发生器和驱动信号发生器。 电动机驱动部具有多个半桥电路，其中高电位侧驱动晶体管和低电位侧驱动晶体管彼此串联连接，并且它们之间的连接点用作每相的定子绕组驱动端子 一个电机 转子位置检测器检测电动机的转子位置并输出转子位置信号。 电流相位检测器检测在定子绕组驱动端子中流动的相电流的相位。 电压信号发生器控制并产生电压分布信号，使得作为相电流的相位与转子位置信号的相位之间的差的第一相位差被保持为预定的电角度。 驱动信号发生器根据电压分布信号产生驱动每相驱动晶体管的PWM信号。
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公开(公告)号：US07402975B2
公开(公告)日：2008-07-22
申请号：US11548500
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： H02P1/24
CPC分类号： H02P27/08
摘要： A rise in the power supply voltage as a result of a sudden speed reducing command causing the motor current to flow to the power supply is prevented. The motor drive device has a drive signal generating unit for generating a drive signal by an energizing control unit, PWM control unit, and oscillation unit; a drive unit for producing drive power to drive the motor based on the drive signal; a torque control signal generating unit for generating a torque control signal specifying the motor torque; a speed detection unit for detecting the rotational speed of the motor and generating a rotational speed signal denoting motor speed information; and a decision unit for generating a speed difference detection signal denoting the difference between the torque control signal and the rotational speed signal. The drive signal generating unit is controlled based on the speed difference detection signal.
摘要翻译： 防止由于导致电动机电流流向电源的突然减速指令导致的电源电压的上升。 电机驱动装置具有用于通过激励控制部，PWM控制部和振荡部产生驱动信号的驱动信号生成部， 驱动单元，用于基于所述驱动信号产生用于驱动所述马达的驱动力; 转矩控制信号发生单元，用于产生指定电动机转矩的转矩控制信号; 速度检测单元，用于检测电动机的转速并产生表示电动机速度信息的转速信号; 以及判定单元，用于生成表示转矩控制信号和转速信号之间的差的速度差检测信号。 基于速度差检测信号来控制驱动信号生成部。
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公开(公告)号：US07298106B2
公开(公告)日：2007-11-20
申请号：US11490985
申请日：2006-07-21
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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