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1. 发明申请

US20080100243A1 DRIVE CONTROL DEVICE OF MOTOR AND A METHOD OF START-UP 失效
标题翻译：电机的驱动控制装置和启动方法
公开(公告)号：US20080100243A1
公开(公告)日：2008-05-01
申请号：US11871343
申请日：2007-10-12
申请人： Minoru KUROSAWA , Yasuhiko KOKAMI
发明人： Minoru KUROSAWA , Yasuhiko KOKAMI
IPC分类号： H02P1/18
CPC分类号： H02P6/182 , G11B19/2054 , H02P6/20
摘要： A motor drive control device and motor startup method prevent startup noise and reduce startup time. At startup, a current to which a rotor does not react is passed through two phase coils of a polyphase DC motor in succession, and a voltage polarity induced in a non-conducting phase is detected. A first operation decodes the detected signal, and determines phase coils of the motor through which a current should pass to rotate the rotor and the energization direction. A second operation forms a control signal for passing a current according to the determination to drive the motor, detects a voltage peak induced in the non-conducting phase during the drive, and performs switching control of a conducting phase. In normal operation, the position of the rotor is detected based on a back EMF in each phase, and rotation control is performed.
摘要翻译：电机驱动控制装置和电机启动方式可以防止启动噪音，减少启动时间。在启动时，转子不反应的电流依次通过多相直流电动机的两相线圈，并且检测在非导通相中感应的电压极性。第一操作对检测到的信号进行解码，并且确定电流通过的电动机的相线圈以使转子和通电方向旋转。第二操作形成用于根据用于驱动电动机的确定来传递电流的控制信号，检测在驱动期间在非导通相中感应的电压峰值，并执行导通相位的切换控制。在正常运行中，基于各相的反电动势来检测转子的位置，进行旋转控制。

2. 发明申请

US20110156625A1 MOTOR DRIVING APPARATUS AND METHOD FOR CONTROL OF MOTOR REVOLUTION 有权
标题翻译：电动机驱动装置和控制电动机的方法
公开(公告)号：US20110156625A1
公开(公告)日：2011-06-30
申请号：US13044042
申请日：2011-03-09
申请人： Minoru KUROSAWA , Yasuhiko KOKAMI
发明人： Minoru KUROSAWA , Yasuhiko KOKAMI
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , G11B19/28 , H02P6/18
摘要： This invention provides a motor driving apparatus that made it possible to reduce torque ripples including those attributed to load variation of the motor and an associated method for control of motor revolution. An output stage to a multiphase DC motor is comprised of power elements to supply output voltages to multiphase coils and a predriver to supply drive voltages to the power elements. A resistor means detects a current flowing through the power elements. A supply current detector detects a voltage signal produced across the resistor means as a supply current, using a high-speed ADC and a moving average filter. An output controller generates a PWM signal with a frequency lower than the frequency of the high-speed ADC so that the current detected by the supply current detector conforms to a current signal indicating a motor revolving speed and transfers the PWM signal to the output stage.
摘要翻译：本发明提供一种电动机驱动装置，其能够减少扭矩波动，包括归因于电动机的负载变化的转矩波动，以及用于控制电动机转速的相关方法。向多相直流电动机的输出级由向多相线圈提供输出电压的功率元件和向功率元件提供驱动电压的预驱动器组成。电阻装置检测流过功率元件的电流。电源电流检测器使用高速ADC和移动平均滤波器来检测跨电阻器件产生的电压信号作为电源电流。输出控制器产生频率低于高速ADC频率的PWM信号，使得由电源电流检测器检测到的电流符合指示电动机转速的电流信号，并将PWM信号传输到输出级。

3. 发明申请

US20100066284A1 DRIVE SYSTEM OF SYNCHRONOUS MOTOR 失效
标题翻译：同步电机驱动系统
公开(公告)号：US20100066284A1
公开(公告)日：2010-03-18
申请号：US12547693
申请日：2009-08-26
申请人： Yoshitaka IWAJI , Yasuhiko KOKAMI , Minoru KUROSAWA
发明人： Yoshitaka IWAJI , Yasuhiko KOKAMI , Minoru KUROSAWA
IPC分类号： H02P6/00 , H02P21/14 , H02P27/08
CPC分类号： H02P21/04 , H02P6/187 , H02P21/32 , H02P2207/05
摘要： A position sensorless drive method capable of driving a permanent magnet motor by an ideal sine-wave current and enabling the driving from an extremely low-speed range in the vicinity of zero-speed is provided. A neutral-point potential of the permanent magnet motor is detected in synchronization with a PWM waveform of an inverter. The position of a rotor of the permanent magnet motor is estimated from the variation of the neutral-point potential. Since the neutral-point potential is varied in accordance with the magnetic circuit characteristics of an individual permanent magnet motor, the position can be detected regardless of the presence of saliency of the permanent magnet motor.
摘要翻译：提供一种能够通过理想的正弦波电流驱动永磁电动机并且能够在零速度附近的极低速范围内进行驱动的位置无传感器驱动方法。与逆变器的PWM波形同步地检测永磁电动机的中性点电位。根据中性点电位的变化估计永磁电动机的转子的位置。由于中性点电位根据单个永磁电动机的磁路特性而变化，因此可以检测位置，而不管永磁电动机的显着性如何。

4. 发明申请

US20110063021A1 POWER SUPPLY UNIT 失效
标题翻译：供电单元
公开(公告)号：US20110063021A1
公开(公告)日：2011-03-17
申请号：US12950161
申请日：2010-11-19
申请人： Osamu YAMASHITA , Yasuhiko KOKAMI , Masahiro ISHIHARA , Toshiyuki TSUNODA
发明人： Osamu YAMASHITA , Yasuhiko KOKAMI , Masahiro ISHIHARA , Toshiyuki TSUNODA
IPC分类号： G05F1/10
CPC分类号： H02M1/32 , H02M3/158 , H02M2001/0009 , H02M2001/0025
摘要： High-accuracy overcurrent detection is performed, while a loss resulting from the current detection is significantly reduced. A switch section outputs the voltage between the both terminals of a current detection resistor using an AND signal between an output signal from a hysteresis comparator and an output signal from a pre-driver. The voltage is filtered by an electrostatic capacitor element and a resistor, and inputted to a comparator. The comparator makes a comparison between the signals inputted to the two input terminals thereof, and outputs the result of the comparison to a digital filter. When an overcurrent begins to flow in a power supply unit, the levels of the voltages inputted to the two input terminals of the comparator are inverted so that the comparator outputs an inversion signal to the digital filter. The digital filter outputs a detection signal to an overcurrent detection circuit when an arbitrary time has elapsed.
摘要翻译：执行高精度过电流检测，而由电流检测导致的损耗显着降低。开关部分使用来自迟滞比较器的输出信号和来自预驱动器的输出信号之间的AND信号来输出电流检测电阻器的两端之间的电压。电压由静电电容器元件和电阻器滤波，并输入到比较器。比较器对输入到其两个输入端的信号进行比较，并将比较结果输出到数字滤波器。当过电流在电源单元中流动时，输入到比较器的两个输入端的电压的电平被反相，使得比较器向数字滤波器输出反相信号。当任意时间过去时，数字滤波器将检测信号输出到过电流检测电路。

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