公开(公告)号：US20080067964A1

公开(公告)日：2008-03-20

申请号：US11597113

申请日：2005-05-24

申请人： Norihiro Maeda ,  Seiichi Yamamoto

发明人： Norihiro Maeda ,  Seiichi Yamamoto

IPC分类号： H02P6/16

CPC分类号： H02P6/185 ,  H02P6/22 ,  Y10S388/901

摘要： A technology for correctly detecting a rotating position of a rotator at the time of rotation start. A rotation control apparatus controls rotation of a motor, which includes a stator provided with a plurality of coils and a rotor having magnetism. At the time of detecting a position of the motor when the motor is stopped, a control part supplies a current to a plurality of different paths including the coils, a stopped position detecting part measures the current flowing in each of the plurality of paths, judges the order of the measured current values, and a rotating position of the motor is detected based on the order. Based on a combination of a path showing the highest current value and a path showing the second highest current value, the stopped time position detecting part judges a position of the motor.

摘要翻译： 用于在旋转开始时正确地检测旋转体的旋转位置的技术。 旋转控制装置控制电动机的旋转，该电动机包括具有多个线圈的定子和具有磁性的转子。 在马达停止时检测到马达的位置时，控制部分将电流提供给包括线圈的多个不同路径，停止位置检测部分测量在多条路径中流动的电流，判断 根据顺序检测测量的电流值的顺序和电动机的旋转位置。 基于表示最高电流值的路径和表示第二最高电流值的路径的组合，停止时间位置检测部判断电动机的位置。

公开(公告)号：US07173476B2

公开(公告)日：2007-02-06

申请号：US10784302

申请日：2004-02-24

申请人： Seiichi Yamamoto ,  Norihiro Maeda ,  Toyokazu Ueda

发明人： Seiichi Yamamoto ,  Norihiro Maeda ,  Toyokazu Ueda

IPC分类号： H03K17/687

CPC分类号： G05F3/262 ,  H03K17/0822

摘要： The drain of a power transistor M1 is connected to the non-inverting input terminal of an operational amplifier A and the drain of a transistor M2 is connected to the inverting input terminal of the operational amplifier A to make substantially equal the drain voltages of the power transistor M1 and the transistor M2, of which the gates are connected together and of which the sources are connected together. The drain current of the transistor M2 is outputted via a detection terminal 13 as a current signal proportional to the drain current of the power transistor M1.

摘要翻译： 功率晶体管M 1的漏极连接到运算放大器A的非反相输入端子，并且晶体管M 2的漏极连接到运算放大器A的反相输入端子，使得基本上等于 功率晶体管M 1和晶体管M 2，其栅极连接在一起，并且源极连接在一起。 晶体管M 2的漏极电流通过检测端子13作为与功率晶体管M1的漏极电流成比例的电流信号输出。

公开(公告)号：US06980044B2

公开(公告)日：2005-12-27

申请号：US10848568

申请日：2004-05-19

申请人： Seiichi Yamamoto ,  Norihiro Maeda ,  Toyokazu Ueda

发明人： Seiichi Yamamoto ,  Norihiro Maeda ,  Toyokazu Ueda

IPC分类号： H01L27/04 ,  H01L21/822 ,  H01L21/8222 ,  H01L21/8234 ,  H01L21/8248 ,  H01L27/06 ,  H01L27/088 ,  H01L29/78 ,  H03K17/08 ,  H03K17/082 ,  H03K17/687

CPC分类号： H03K17/0822

摘要： Connected to a power element having a first electrode, a second electrode, and a control electrode, a power element protection circuit detects a voltage between the first and second electrodes of the power element and the current flowing through the power element, then logarithmically converts a current proportional to the detected voltage and a current proportional to the detected current individually, then adds the results together, then subtracts a predetermined value from the sum, then antilogarithmically converts the result with an antilogarithmic converter, and then limits the driving of the power element based on the output of the antilogarithmic converter.

摘要翻译： 连接到具有第一电极，第二电极和控制电极的功率元件，功率元件保护电路检测功率元件的第一和第二电极与流过功率元件的电流之间的电压，然后对数转换 与检测到的电压成比例的电流和与检测到的电流成比例的电流，然后将结果相加，然后从总和中减去预定值，然后用对数转换器对结果进行反对数转换，然后限制功率元件的驱动 基于反对数转换器的输出。

公开(公告)号：US07863844B2

公开(公告)日：2011-01-04

申请号：US11597113

申请日：2005-05-24

申请人： Norihiro Maeda ,  Seiichi Yamamoto

发明人： Norihiro Maeda ,  Seiichi Yamamoto

IPC分类号： H02P7/00

CPC分类号： H02P6/185 ,  H02P6/22 ,  Y10S388/901

摘要： A technology for correctly detecting a rotating position of a rotator at the time of rotation start. A rotation control apparatus controls rotation of a motor, which includes a stator provided with a plurality of coils and a rotor having magnetism. At the time of detecting a position of the motor when the motor is stopped, a control part supplies a current to a plurality of different paths including the coils, a stopped position detecting part measures the current flowing in each of the plurality of paths, judges the order of the measured current values, and a rotating position of the motor is detected based on the order. Based on a combination of a path showing the highest current value and a path showing the second highest current value, the stopped time position detecting part judges a position of the motor.

摘要翻译： 用于在旋转开始时正确地检测旋转体的旋转位置的技术。 旋转控制装置控制电动机的旋转，该电动机包括具有多个线圈的定子和具有磁性的转子。 在马达停止时检测到马达的位置时，控制部分将电流提供给包括线圈的多个不同路径，停止位置检测部分测量在多条路径中流动的电流，判断 根据顺序检测测量的电流值的顺序和电动机的旋转位置。 基于表示最高电流值的路径和表示第二最高电流值的路径的组合，停止时间位置检测部判断电动机的位置。

公开(公告)号：US08069728B2

公开(公告)日：2011-12-06

申请号：US12244269

申请日：2008-10-02

申请人： John Goodfellow ,  Kazuyoshi Ueno ,  Milan Prodanovic ,  Koshi Yamamoto ,  Norihiro Maeda

发明人： John Goodfellow ,  Kazuyoshi Ueno ,  Milan Prodanovic ,  Koshi Yamamoto ,  Norihiro Maeda

IPC分类号： G01M7/00

CPC分类号： G01M7/022

摘要： Focusing on the criterion of “Energy save” or “Quiet noise” or other suitable operating parameter and considering the existing limitation of the operation of the electro-dynamic shaker system, apparatus for optimizing the operating condition of the vibration test system is proposed. The apparatus 100 measures the field current and drive current under the state that the desired vibration is fed to the specimen 20, and calculates the necessary force the shaker 1 should supply. Field current is supposed to be varied, and the necessary drive current is calculated based on the necessary force data. Further, the blower rotation is supposed to be varied, and the total power consumption at the coils and the blower is calculated. Also the temperatures of the field coil 4 and of the drive coil 10 is estimated and checked whether within the limitation. Then the optimal operating condition for the focused criterion is selected.

摘要翻译： 针对“节能”或“安静噪声”或其他合适的运行参数，并考虑到电动振动筛系统的现有操作限制，提出了优化振动试验系统运行状态的装置。 装置100在将期望的振动供给到试样20的状态下测量励磁电流和驱动电流，并计算振荡器1应提供的必要力。 励磁电流应变化，并根据必要的力数据计算必要的驱动电流。 此外，鼓风机旋转被认为是变化的，并且计算线圈和鼓风机的总功耗。 此外，在限制内，还估计和检查励磁线圈4和驱动线圈10的温度。 然后选择聚焦标准的最优运行条件。

公开(公告)号：US20070176567A1

公开(公告)日：2007-08-02

申请号：US11596770

申请日：2005-05-26

申请人： Norihiro Maeda

发明人： Norihiro Maeda

IPC分类号： H02P7/06

CPC分类号： H02P6/182 ,  H02P6/28 ,  Y02P80/116

摘要： There is provided a brushless motor drive control circuit capable of assuring an S/N ratio of a predetermined counter electromotive voltage and suppressing lowering of efficiency of a brushless motor at a high-speed rotation. More specifically, the brushless motor drive control circuit (6) includes: counter electromotive voltage filter circuits (16U, 16V, 16W) for inputting 3-phase counter electromotive voltage induced at the end of each of the stator coils (LU, LV, LW) and switching between a first and a second time constant according to the rotation speed of the rotor (RO) so as to pass a low-range frequency component corresponding to the time constant; counter electromotive voltage detection comparators (17U, 17V, 17W) for inputting the counter electromotive voltage which has passed through the counter electromotive voltage filter circuit and comparing it with voltage at a neutral point so as to output counter electromotive voltage polarity signals (PU, PV, PW) as the comparison results; and a motor driver control circuit (15a) for switching/controlling the time constant of the counter electromotive filter circuits (16U, 16V, 16W) and controlling the motor driver (5) according to the counter electromotive voltage polarity signals.

摘要翻译： 提供了一种无刷电动机驱动控制电路，其能够确保预定的反电动势电压的S / N比并且抑制高速旋转时的无刷电动机的效率的降低。 更具体地说，无刷电动机驱动控制电路（6）包括：反电动势电压滤波电路（16），16 V，16（W） 用于输入在每个定子线圈（L，U，L，V，W）的端部感应的三相反电动势电压和 根据转子的旋转速度在第一时间常数和第二时间常数之间切换，以便通过对应于时间常数的低范围频率分量; 用于输入已经通过反电动势电压的反电动势电压的反电动势电压检测比较器（17 ，17V，17 ） 滤波电路，并将其与中性点的电压进行比较，以便输出反电动势电压极性信号（P ，P ）作为比较结果; 以及用于切换/控制反电动势滤波器电路的时间常数的电动机驱动器控制电路（15a），其中， / SUB>），并根据反电动势极性信号控制电机驱动器（5）。

公开(公告)号：US09509208B2

公开(公告)日：2016-11-29

申请号：US14122292

申请日：2012-05-25

申请人： Issei Kadowaki ,  Norihiro Maeda

发明人： Issei Kadowaki ,  Norihiro Maeda

IPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/155 ,  H02M1/00

CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/155 ,  H02M2001/0006

摘要： A load driving device according to the present invention has: an internal circuit (DRV) that operates in response to the supply of a power supply voltage (HV or LV); an output circuit (PD1 and PD2) for driving a load in response to the supply of the power supply voltage (HV or LV); an abnormality detection circuit (12) for monitoring the power supply voltage (HV or LV) and generating an abnormality detection signal (S1); and a power supply switch (P0) for, according to the abnormality detection signal (S1), conducting or cutting off a power-supply-voltage supply line to the internal circuit (DRV).

摘要翻译： 根据本发明的负载驱动装置具有：响应于电源电压（HV或LV）的供给而工作的内部电路（DRV）; 用于响应于电源电压（HV或LV）的供应来驱动负载的输出电路（PD1和PD2）; 用于监视电源电压（HV或LV）并产生异常检测信号的异常检测电路（12）; 以及根据异常检测信号（S1），导通或切断到内部电路（DRV）的电源电压供给线的电源开关（P0）。

公开(公告)号：US20140084835A1

公开(公告)日：2014-03-27

申请号：US14122292

申请日：2012-05-25

申请人： Issei Kadowaki ,  Norihiro Maeda

发明人： Issei Kadowaki ,  Norihiro Maeda

IPC分类号： H02M1/32

CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/155 ,  H02M2001/0006

摘要： A load driving device according to the present invention has: an internal circuit (DRV) that operates in response to the supply of a power supply voltage (HV or LV); an output circuit (PD1 and PD2) for driving a load in response to the supply of the power supply voltage (HV or LV); an abnormality detection circuit (12) for monitoring the power supply voltage (HV or LV) and generating an abnormality detection signal (S1); and a power supply switch (P0) for, according to the abnormality detection signal (S1), conducting or cutting off a power-supply-voltage supply line to the internal circuit (DRV).

摘要翻译： 根据本发明的负载驱动装置具有：响应于电源电压（HV或LV）的供给而工作的内部电路（DRV）; 用于响应于电源电压（HV或LV）的供应来驱动负载的输出电路（PD1和PD2）; 用于监视电源电压（HV或LV）并产生异常检测信号的异常检测电路（12）; 以及根据异常检测信号（S1），导通或切断到内部电路（DRV）的电源电压供给线的电源开关（P0）。

公开(公告)号：US07492113B2

公开(公告)日：2009-02-17

申请号：US11596770

申请日：2005-05-26

申请人： Norihiro Maeda

发明人： Norihiro Maeda

IPC分类号： H02P6/00

CPC分类号： H02P6/182 ,  H02P6/28 ,  Y02P80/116

摘要： There is provided a brushless motor drive control circuit capable of assuring an S/N ratio of a predetermined counter electromotive voltage and suppressing lowering of efficiency of a brushless motor at a high-speed rotation. More specifically, the brushless motor drive control circuit includes: counter electromotive voltage filter circuits for inputting 3-phase counter electromotive voltage induced at the end of each of the stator coils and switching between a first and a second time constant according to the rotation speed of the rotor so as to pass a low-range frequency component corresponding to the time constant; counter electromotive voltage detection comparators for inputting the counter electromotive voltage which has passed through the counter electromotive voltage filter circuit and comparing it with voltage at a neutral point so as to output counter electromotive voltage polarity signals as the comparison results; and a motor driver control circuit for switching/controlling the time constant of the counter electromotive filter circuits and controlling the motor driver according to the counter electromotive voltage polarity signals.

摘要翻译： 提供了一种无刷电动机驱动控制电路，其能够确保预定的反电动势电压的S / N比并且抑制高速旋转时的无刷电动机的效率的降低。 更具体地，无刷电动机驱动控制电路包括：反电动势电压滤波电路，用于输入在每个定子线圈的端部感应的三相反电动势电压，并根据第一和第二时间常数 转子，以便通过对应于时间常数的低范围频率分量; 反电动势电压检测比较器，用于输入已经通过反电动势电压滤波器电路的反电动势电压，并将其与中性点的电压进行比较，以输出反电动势极性信号作为比较结果; 以及用于切换/控制反电动势滤波器电路的时间常数并根据反电动势极性信号控制电动机驱动器的电动机驱动器控制电路。

公开(公告)号：US06922032B2

公开(公告)日：2005-07-26

申请号：US10765302

申请日：2004-01-27

申请人： Norihiro Maeda

发明人： Norihiro Maeda

IPC分类号： H02P6/18 ,  H02P6/24 ,  H02P3/12

CPC分类号： H02P6/24 ,  H02P6/182

摘要： In the driving operation of a sensorless three-phase motor to be used in a rotation at a comparatively low speed (approximately 2000 RPM or less) and to be bipolar driven, the number of rotations and a rotating position are accurately detected from an induced voltage and a reverse rotation brake is applied in an accurate phase, and furthermore, a short brake is applied at a set rotation number signal or less also in braking. Consequently, it is possible to prevent phase switching from being carried out in an erroneous timing and to prevent a rotation in a reverse direction by an inertia.

摘要翻译： 在以比较低的速度（大约2000RPM或更小）的旋转中使用并且被双极驱动的无传感器三相电动机的驱动操作中，从感应电压精确地检测转数和旋转位置 并且以正确的相位施加反向旋转制动器，此外，在制动时，以设定的转数信号或更小的制动器施加短的制动。 因此，可以防止在错误的定时中进行相位切换，并且防止通过惯性沿相反方向旋转。