公开(公告)号：US20120074856A1

公开(公告)日：2012-03-29

申请号：US13314597

申请日：2011-12-08

申请人： Go TAKATA ,  Shinichiro Kataoka ,  Yasunori Yamamoto ,  Tsukasa Kawahara ,  Ryuji Ueda ,  Daisuke Itou

发明人： Go TAKATA ,  Shinichiro Kataoka ,  Yasunori Yamamoto ,  Tsukasa Kawahara ,  Ryuji Ueda ,  Daisuke Itou

IPC分类号： H05B37/03

CPC分类号： H05B33/089 ,  G09G3/3406 ,  G09G2320/0233 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/083

摘要： Short circuit failures and open circuit failures of light-emitting elements used for the backlight in an LCD panel can be reliably and easily detected. The voltage at the node between each series-connected light-emitting element array and a drive circuit is detected as a monitored voltage. A maximum detector detects the highest and a minimum detector detects the lowest of these monitored voltages. Short circuit or open circuit failure of a light-emitting element is detected by comparing the voltage difference between the maximum detector output and the minimum detector output with a specific reference voltage.

摘要翻译： 可以可靠且容易地检测用于LCD面板中的背光的发光元件的短路故障和开路故障。 每个串联连接的发光元件阵列和驱动电路之间的节点处的电压被检测为监视电压。 最大检测器检测到最高检测器，并且最小检测器检测到这些监控电压中的最低值。 通过将最大检测器输出和最小检测器输出之间的电压差与特定参考电压进行比较来检测发光元件的短路或开路故障。

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。

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。

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。

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。

公开(公告)号：US07540132B2

公开(公告)日：2009-06-02

申请号：US10177416

申请日：2002-06-21

申请人： Kenzo Shimada ,  Takao Kobayashi ,  Tetsuo Iida ,  Toshiaki Takizawa ,  Yasunori Yamamoto ,  Yoshihisa Hirose

发明人： Kenzo Shimada ,  Takao Kobayashi ,  Tetsuo Iida ,  Toshiaki Takizawa ,  Yasunori Yamamoto ,  Yoshihisa Hirose

IPC分类号： A01D69/00

CPC分类号： A01D69/02 ,  A01D34/6812 ,  A01D34/828

摘要： In an electric working machine, a scroll portion is provided at one of left and right sides of a machine body, and a relay member functioning as a power switch in which a power on/off key is removably inserted is provided at the other side of the machine body. The relay member is provided between a motor-driving battery and a control section so that the battery and control section can be electrically connected with each other by insertion, in the relay member, of the power on/off key and disconnected from each other by removal, from the relay member, of the power on/off key.

摘要翻译： 在电动加工机中，在机体的左右一侧设置有涡旋部，并且在另一侧设置作为功率开关的功率开关的功能开关的中继部， 机身。 继电器构件设置在电动机驱动电池和控制部之间，使得电池和控制部可以通过在继电器构件中插入电源接通/断开键而彼此电连接，并且通过 从继电器构件中取出电源开/关键。

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。

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。

公开(公告)号：US20080126905A1

公开(公告)日：2008-05-29

申请号：US11946148

申请日：2007-11-28

申请人： Naoto DEGUCHI ,  Keizo SUMIDA ,  Yasunori YAMAMOTO

发明人： Naoto DEGUCHI ,  Keizo SUMIDA ,  Yasunori YAMAMOTO

IPC分类号： G06F11/00

CPC分类号： G06F11/1044

摘要： The memory control device according to the present invention reads data including an error correcting code from a memory and includes: an error correcting unit which detects an error in the data and corrects the detected error in the data, based on the error correcting code, and sends the error detected and error corrected data to the outside; and a selector which selects whether to send the data read from the memory to the error correcting unit or to the outside.

摘要翻译： 根据本发明的存储器控​​制装置从存储器读取包括纠错码的数据，包括：纠错单元，其基于纠错码检测数据中的错误并校正检测到的错误，以及 将检测到的错误和纠错数据发送到外部; 以及选择器，其选择是否将从存储器读取的数据发送到纠错单元或者向外部发送。

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。