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    • 15. 发明授权
    • Motor driver
    • 电机驱动器
    • US07256701B2
    • 2007-08-14
    • US10905434
    • 2005-01-04
    • Shinichi KonoShinichi HorikoshiMasami KimijimaMamoru Yaeshima
    • Shinichi KonoShinichi HorikoshiMasami KimijimaMamoru Yaeshima
    • G08B21/00
    • G01R31/343B60L3/0023G01R31/12
    • A motor driver capable of detecting the insulation deterioration of a motor easily and inexpensively is disclosed. The voltage supplied from an AC power supply (1) is rectified by a first rectifying circuit (D1 to D6) and smoothed by a capacitor (C) in a power supply unit (6). The output voltage of the power supply unit (6) is converted into an AC voltage of a frequency and a motor (M) is driven by a motor drive amplifier (8). Elements (R1, C2, R11, C21) are connected between at least one of the positive electrode (4) and the negative electrode (5) of the output line (4, 5) of the power supply unit (6) and the ground (G2, G4). An insulation deterioration circuit (10, 11, 12) detects at least one of the voltage between the elements and the current flowing through the elements.
    • 公开了能够容易且廉价地检测电动机的绝缘劣化的电动机驱动器。 由交流电源(1)提供的电压由第一整流电路(D1至D6)整流,并在电源单元(6)中被电容器(C)平滑。 电源单元(6)的输出电压被转换为频率的交流电压,电动机(M)由电机驱动放大器(8)驱动。 元件(R 1,C 2,R 11,C 21)连接在电源单元(6)的输出线(4,5)的正极(4)和负极(5)中的至少一个 )和地面(G 2,G 4)。 绝缘劣化电路(10,11,12)检测元件之间的电压和流过元件的电流中的至少一个。
    • 16. 发明授权
    • Motor driving apparatus
    • 电机驱动装置
    • US07227323B2
    • 2007-06-05
    • US10859237
    • 2004-06-03
    • Yuuichi YamadaShigeki HanyuMamoru Yaeshima
    • Yuuichi YamadaShigeki HanyuMamoru Yaeshima
    • H02P1/26H02P3/14B66B1/06
    • H02M5/458H02M5/4585H02P3/14H02P3/18
    • A motor driving apparatus applicable to various types of motor driving apparatuses and having a power storage section for storing a regenerative current and supplying power to an inverter section at the time of acceleration. The motor driving apparatus further comprises a converter section, a DC link, and an inverter section, thereby driving a motor. Connected to the DC link is the power storage section including a capacitor, a charging circuit, a discharging circuit and a diode. The regenerative current produced at the motor deceleration is stored in the capacitor through the diode. The power stored in the capacitor is outputted to the DC link by turning a switching element of the discharging circuit ON at the motor acceleration. Furthermore, the charging circuit has a boost switching regulator circuit for charging the capacitor to the given upper limit voltage equal to or larger than voltage of the DC link and a current limitation circuit for limiting a charging current to the given upper limit. The upper limit of the charging current can be changed according to the type of the motor driving apparatus.
    • 一种适用于各种电动机驱动装置的电动机驱动装置,具有用于存储再生电流的蓄电部,并且在加速时向逆变器部供电。 电动机驱动装置还包括转换器部分,直流链路和逆变器部分,从而驱动电动机。 连接到直流链路的是存储部分,其包括电容器,充电电路,放电电路和二极管。 电机减速时产生的再生电流通过二极管存储在电容器中。 存储在电容器中的电力通过在马达加速度下打开放电电路的开关元件而被输出到DC链路。 此外,充电电路具有用于将电容器充电到等于或大于DC链路的电压的给定上限电压的升压开关调节器电路和用于将充电电流限制到给定上限的电流限制电路。 充电电流的上限可以根据电动机驱动装置的类型而改变。