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1. 发明授权

US5929576A Protection apparatus for brushless motor 失效
标题翻译：无刷电机保护装置
公开(公告)号：US5929576A
公开(公告)日：1999-07-27
申请号：US839741
申请日：1997-04-15
申请人： Masahiro Yasohara , Kazuyuki Takada , Yoshihiro Fujisaki
发明人： Masahiro Yasohara , Kazuyuki Takada , Yoshihiro Fujisaki
IPC分类号： H02P6/06 , H02H7/08 , H02H7/093 , H02P6/00 , H02P6/12 , H02P6/16 , H02K23/00
CPC分类号： H02H7/0833 , H02P6/17 , H02P6/34 , H02H7/093
摘要： A protection apparatus used in a brushless motor is arranged by a brushless motor; a commutation signal detecting unit for detecting a position of a movable member of the brushless motor; a speed detecting unit for detecting a rotation speed of the movable member of the brushless motor, involving a rotation direction thereof, in response to the detection signal outputted from the commutation signal detecting unit; and a drive circuit for producing a commutation signal used to drive the movable member of the brushless motor in response to the detection signal outputted from the commutation signal detecting unit and for driving the brushless motor based upon the commutation signal. The protection apparatus is further constructed of an output voltage instructing unit for supplying to the drive circuit, an output voltage instruction signal for instructing an output voltage of the drive circuit, which constitutes a drive voltage when the brushless motor is driven; a voltage limit level setting unit for setting an upper limit value of the output voltage of the drive circuit; and a voltage limiter unit for limiting the output signal of the output voltage instructing unit based on the setting value of the voltage limit level setting unit to thereby limit an upper limit value of the output voltage of the drive circuit.
摘要翻译：用于无刷电动机的保护装置由无刷电动机布置; 换流信号检测单元，用于检测无刷电机的可动件的位置; 速度检测单元，用于响应于从换流信号检测单元输出的检测信号，检测包括其旋转方向的无刷电动机的可动构件的转速; 以及用于产生换向信号的驱动电路，用于响应于从换向信号检测单元输出的检测信号驱动无刷电动机的可动件，并根据换向信号驱动无刷马达。保护装置进一步由输出电压指令单元构成，用于向驱动电路提供用于指示驱动电路的输出电压的输出电压指令信号，该驱动电路在驱动无刷电动机时构成驱动电压; 电压限制电平设定单元，用于设定驱动电路的输出电压的上限值; 以及电压限制器单元，其基于所述电压限制电平设定单元的设定值来限制所述输出电压指示单元的输出信号，从而限制所述驱动电路的输出电压的上限值。

2. 发明授权

US5703459A Driver for an induction motor 失效
标题翻译：感应电机驱动器
公开(公告)号：US5703459A
公开(公告)日：1997-12-30
申请号：US610826
申请日：1996-03-05
申请人： Masahiro Yasohara , Yoshihiro Fujisaki , Kazuyuki Takada
发明人： Masahiro Yasohara , Yoshihiro Fujisaki , Kazuyuki Takada
IPC分类号： H02H3/08 , H02H3/20 , H02H5/00 , H02H7/00 , H02H7/093 , H02M7/48 , H02P27/04 , H02P27/06 , H02P5/34
CPC分类号： H02P29/027 , H02H7/093 , H02P21/09 , H02P2207/01 , H02P23/08 , H02P27/047
摘要： A driver for an induction motor includes a voltage limiter which limits an upper limit value of an output voltage from an invertor circuit in accordance with an output frequency command, a lowest frequency limiter which limits a lower limit of an output frequency from the invertor circuit, a forward rotation limiter which outputs a first power supply interruption signal when the output frequency from the invertor circuit reaches the upper limit, a reverse rotation limiter which outputs a second power supply interruption signal when a reverse rotational speed of the motor reaches a reverse rotation limit level, and a low-speed overload detector which outputs a third power supply interruption signal when a state in which the second power supply interruption signal is not output continues in a low speed abnormality state.
摘要翻译：用于感应电动机的驱动器包括限制器，该限幅器根据输出频率指令限制来自逆变器电路的输出电压的上限值，限制来自逆变器电路的输出频率的下限的最低频率限制器，正转限制器，当来自逆变器电路的输出频率达到上限时，输出第一电源中断信号;反转限制器，当电动机的反转速度达到反转极限时输出第二电源中断信号以及低速过载检测器，当不输出第二电源中断信号的状态在低速异常状态下继续时，输出第三电源中断信号。

3. 发明授权

US5859770A Output circuit for PWM inverter with no floating state 失效
标题翻译：无浮动状态的PWM逆变器输出电路
公开(公告)号：US5859770A
公开(公告)日：1999-01-12
申请号：US804652
申请日：1997-02-25
申请人： Kazuyuki Takada , Masahiro Yasohara , Shinichi Emura
发明人： Kazuyuki Takada , Masahiro Yasohara , Shinichi Emura
IPC分类号： H02M7/48 , H02M7/537 , H02M7/5387 , H02M1/12 , H02M3/24
CPC分类号： H02M7/538
摘要： An output circuit for a PWM inverter is provided which has an N-type first power device and a P-type second power device. Gates of the first and second power devices are connected to each other. Also, emitters of the first and second power devices are connected to each other. An input electrode control circuit controls the voltage applied to the common gates with respect to the common emitters. The voltage may be a positive or negative value, or zero. The input electrode control circuit controls the conduction states of the two power devices based upon the states of input light emitting devices associated with a first and second photocoupler (current generator). When both of the photocouplers are not lit, no current is generated and the conduction states of the power devices are instantaneously interrupted.
摘要翻译：提供一种用于PWM逆变器的输出电路，其具有N型第一功率器件和P型第二功率器件。第一和第二功率器件的栅极彼此连接。而且，第一和第二功率器件的发射极彼此连接。输入电极控制电路控制相对于公共发射极施加到公共栅极的电压。电压可以是正值或负值，也可以是零。输入电极控制电路基于与第一和第二光电耦合器（电流发生器）相关联的输入发光器件的状态来控制两个功率器件的导通状态。当两个光电耦合器不亮时，不产生电流，并且功率器件的导通状态瞬间中断。

4. 发明授权

US6040673A Motor control apparatus 失效
标题翻译：电机控制装置
公开(公告)号：US6040673A
公开(公告)日：2000-03-21
申请号：US320735
申请日：1999-05-27
申请人： Yoshinori Isomura , Masahiro Yasohara , Kazuyuki Takada
发明人： Yoshinori Isomura , Masahiro Yasohara , Kazuyuki Takada
IPC分类号： H02P27/06 , G05B5/01
CPC分类号： H02P23/0004 , H02P23/183
摘要： A motor control apparatus supplies a current to the motor according to the control either by an average current controller or by an instantaneous current controller. The selection of the controller is done by a switching command signal selector, which selects the average current controller when the position deviation is within a specified range, and selects the instantaneous current controller when the position deviation is outside this specified range.
摘要翻译：电动机控制装置根据由平均电流控制器或瞬时电流控制器进行的控制向电动机提供电流。控制器的选择由切换命令信号选择器完成，当位置偏差在指定范围内时，选择平均电流控制器，当位置偏差超出该指定范围时，选择瞬时电流控制器。

5. 发明授权

US6021058A PWM inverter with zero dead time and initial power supply capacitor charging 失效
标题翻译： PWM逆变器具有零死区时间和初始电源电容充电
公开(公告)号：US6021058A
公开(公告)日：2000-02-01
申请号：US129428
申请日：1998-08-05
申请人： Masahiro Yasohara , Yasushi Kato , Shinichi Emura , Kazuyuki Takada , Yuji Tanaka , Kouji Takada , Ryutaro Arakawa
发明人： Masahiro Yasohara , Yasushi Kato , Shinichi Emura , Kazuyuki Takada , Yuji Tanaka , Kouji Takada , Ryutaro Arakawa
IPC分类号： H02M7/48 , H02M7/5395
CPC分类号： H02M7/538
摘要： A PWM inverter output circuit enabling circuit integration, having a fast response characteristic, and unaffected by dv/dt transients is provided. A predrive circuit 17 drives a power circuit 11 comprising first and second power elements P1 and P2 by controlling the gate and source potential of the power elements P1 and P2 based on a stored control state. The control state is detected from a logic signal output from an input signal processor 13, which converts a command signal instructing turning on and off the power elements P1 and P2 to predetermined logic signals. Operating power is drawn from a main dc power source V1, a control power source V2, and a power supply capacitor C1 that is charged using an output voltage from the control power source V2. The gates and sources of the power elements P1 and P2 are connected together.
摘要翻译：提供具有快速响应特性并且不受dv / dt瞬变影响的PWM逆变器输出电路，使能电路集成。预驱动电路17通过基于存储的控制状态控制功率元件P1和P2的栅极和源极电位来驱动包括第一和第二功率元件P1和P2的电源电路11。从输入信号处理器13输出的逻辑信号中检测控制状态，该命令将指示将功率元件P1和P2导通和关闭的命令信号转换成预定的逻辑信号。从主DC电源V1，控制电源V2和使用来自控制电源V2的输出电压进行充电的电源电容器C1抽取工作电力。功率元件P1和P2的门和源连接在一起。

6. 发明申请

US20130147408A1 MOTOR CURRENT PHASE DETECTING DEVICE AND MOTOR DRIVE DEVICE HAVING SAME 审中-公开
标题翻译：电动机电流相检测装置和具有该电机驱动装置的电动机驱动装置
公开(公告)号：US20130147408A1
公开(公告)日：2013-06-13
申请号：US13818605
申请日：2011-09-06
申请人： Kenji Sugiura , Masahiro Yasohara
发明人： Kenji Sugiura , Masahiro Yasohara
IPC分类号： H02P6/00
CPC分类号： H02P6/28 , H02P6/085 , H02P6/15
摘要： The present invention is directed to a motor current phase detecting device that drives a motor having a three-phase drive coil, the device including a power distributor that supplies a drive voltage and a drive current to the drive coil, a current detector that detects a common current waveform flowing from the power distributor, a position detector that detects a position of a rotor, a waveform generator that generates a first PWM signal, a waveform regulator that generates a second PWM signal based on the first PWM signal, and a current phase detector that detects a phase of a drive current flowing in each of the drive coil. The waveform regulator generates the second PWM signal that operates a current phase detector while maintaining a relative voltage value between the drive coils determined by the first PWM signal, and the current phase detector detects the phase of the drive current of the drive coil by detecting a peak current value of the drive coil included in the common current waveform based on the second PWM signal.
摘要翻译：本发明涉及驱动具有三相驱动线圈的电动机的电动机电流相位检测装置，该装置包括向驱动线圈提供驱动电压和驱动电流的电力分配器，检测一个从分配器流出的公共电流波形，检测转子位置的位置检测器，产生第一PWM信号的波形发生器，基于第一PWM信号生成第二PWM信号的波形调节器，以及电流相位检测器，其检测在每个驱动线圈中流动的驱动电流的相位。波形调节器产生第二PWM信号，其操作电流相位检测器，同时保持由第一PWM信号确定的驱动线圈之间的相对电压值，并且电流相位检测器通过检测驱动线圈来检测驱动线圈的驱动电流的相位基于第二PWM信号，包括在公共电流波形中的驱动线圈的峰值电流值。

7. 发明授权

US08169170B2 Motor driving device, motor device, and integrated circuit device 失效
标题翻译：电机驱动装置，电机装置和集成电路装置
公开(公告)号：US08169170B2
公开(公告)日：2012-05-01
申请号：US12664287
申请日：2008-04-03
申请人： Masahiro Yasohara , Kenji Sugiura
发明人： Masahiro Yasohara , Kenji Sugiura
IPC分类号： H02P31/00
CPC分类号： H02P23/06 , H02P3/18
摘要： A motor driving device (100) includes an inverter (20), a speed control unit (40), and a regeneration preventing means (50). The inverter (20) converts supplied DC power to driving power for driving a motor (10), and supplies the driving power to the motor (10). The speed control unit (40) generates a speed control signal group based on a speed command signal Sref and a speed detection signal N, and adjusts the driving power based on a drive control signal VSP1 included in the speed control signal group, thereby controlling the speed of the motor (10). The regeneration preventing means (50) determines whether the motor (10) is in a state possibly causing regenerative phenomena or in a state not causing regenerative phenomena based on the speed command information included in the speed command signal Sref and the speed detection information included in the speed detection signal N, and performs a regeneration reduction process to reduce regenerative phenomena according to the determination result, thereby preventing regenerative phenomena.
摘要翻译：电动机驱动装置（100）包括逆变器（20），速度控制单元（40）和再生防止装置（50）。逆变器（20）将提供的直流电力转换为用于驱动电动机（10）的驱动电力，并将驱动电力提供给电动机（10）。速度控制单元40基于速度指令信号Sref和速度检测信号N生成速度控制信号组，并根据包括在速度控制信号组中的驱动控制信号VSP1来调节驱动功率，从而控制马达（10）的速度。再生防止装置（50）基于包括在速度指令信号Sref中的速度指令信息和包含在速度指令信号Sref中的速度检测信息，判断电动机（10）是否处于可能引起再生现象的状态或不引起再生现象的状态速度检测信号N，并且执行再生还原处理以根据确定结果减少再生现象，由此防止再生现象。

8. 发明授权

US07129661B2 Motor driver, motor driven by the motor driver, and apparatus employing the motor 有权
标题翻译：电机驱动器，由电机驱动器驱动的电动机，以及采用电动机的装置
公开(公告)号：US07129661B2
公开(公告)日：2006-10-31
申请号：US10555178
申请日：2004-04-27
申请人： Kenji Sugiura , Masahiro Yasohara
发明人： Kenji Sugiura , Masahiro Yasohara
IPC分类号： H02P7/00
CPC分类号： H02P6/22 , H02P6/10 , H02P6/24
摘要： A motor driver includes a first signal selector and a second signal selector. The first signal selector is used for selecting a signal to be supplied to an energizing unit of driving coils, and selects either one of a normal energizing pattern signal supplied from an energizing signal generator or a signal from the second signal selector based on a signal from an over-current detector. The second signal selector selects either one of a first non-normal energizing pattern signal from a first energizing signal output unit or a second non-normal energizing pattern signal from a second energizing signal output unit based on a signal from a rotary direction detector.
摘要翻译：电动机驱动器包括第一信号选择器和第二信号选择器。第一信号选择器用于选择要提供给驱动线圈的激励单元的信号，并且基于来自第二信号选择器的信号选择从激励信号发生器提供的正常激励模式信号或来自第二信号选择器的信号中的任一个，过电流检测器。第二信号选择器基于来自旋转方向检测器的信号，选择来自第一通电信号输出单元的第一非正常激励模式信号或来自第二通电信号输出单元的第二非正常供电模式信号中的任一个。

9. 发明授权

US06812667B2 Motor driver 失效
公开(公告)号：US06812667B2
公开(公告)日：2004-11-02
申请号：US10373342
申请日：2003-02-24
申请人： Masahiro Yasohara , Kenji Sugiura
发明人： Masahiro Yasohara , Kenji Sugiura
IPC分类号： G05B1128
CPC分类号： H02P6/10 , H02P6/153
摘要： In a motor driver, based on driving waveforms of respective phases generated by a driving waveform generator, a power feeder feeds respective phase-coils with an alternating current consecutively changing in sine wave. Further, a phase advancing controller adjusts phases of the driving waveform, and performs phase-advancing control such that each phase of back electromotive forces induced in respective phase-coils generally coincides with a phase of the ac running through the coils. In phase-advancing controlling, a phase current is detected with a common current. The structure discussed above can reduce torque ripples, vibrations and noises, and a motor thus can be driven efficiently.

10. 发明授权

US4780651A Speed control apparatus for a motor 失效
标题翻译：电机转速控制装置
公开(公告)号：US4780651A
公开(公告)日：1988-10-25
申请号：US49212
申请日：1987-05-13
申请人： Hiromitsu Nakano , Masahiro Yasohara
发明人： Hiromitsu Nakano , Masahiro Yasohara
IPC分类号： H02P6/06 , H02P6/02
CPC分类号： H02P6/06
摘要： A speed control apparatus for a motor, wherein the counter-electromotive voltage is detected with great precision even when the counter-electromotive voltage to be caused from the motor driving coils is small or the ambient temperature is changed. The voltages corresponding to the detection voltages are turned into speed signals. The emitter resistance of the driving transistor, which is the cause of the torque reduction, can be removed, and uneven rotation, uneven torque is reduced. The speed control apparatus provides a composite voltage of driving coil voltages that are converted by an inversion amplifier. The voltage corresponding to the composite voltage provides the speed signal. This voltage is transferred to the driving coils and precise speed control is produced without a reduction in the controllable maximum torque or the starting torque.
摘要翻译：一种用于电动机的速度控制装置，其中即使当从电动机驱动线圈引起的反电动势电压较小或环境温度改变时，也以高精度检测反电动势电压。与检测电压对应的电压变为速度信号。可以消除作为转矩降低的原因的驱动晶体管的发射极电阻，并且不均匀旋转，不均匀的转矩降低。速度控制装置提供由反相放大器转换的驱动线圈电压的复合电压。对应于复合电压的电压提供速度信号。该电压被传送到驱动线圈，并且在不降低可控最大转矩或起动转矩的情况下产生精确的速度控制。

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