利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.014 秒)

    MOTOR DRIVE HAVING RF TAG
    2.
    发明申请
    MOTOR DRIVE HAVING RF TAG 审中-公开

    公开(公告)号：US20170103241A1

    公开(公告)日：2017-04-13

    申请号：US15284598

    申请日：2016-10-04

    申请人： FANUC CORPORATION

    发明人： Yuuichi Yamada

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10366 ,  H02M5/4585

    摘要： A motor drive according to an embodiment of the present invention, which is a motor drive for driving a motor, includes a detection circuit for detecting the state of the inside of the motor drive; a first memory and a second memory for storing information including a detection value indicating the state detected by the detection circuit; an RF tag having the first memory; an interface circuit for transmitting and receiving information to and from external equipment; and a controller for transmitting at least a part of the information stored in the second memory to the outside through the RF tag or the interface circuit.

    MOTOR DRIVE HAVING FUNCTION OF DETECTING DC LINK CURRENT
    6.
    发明申请
    MOTOR DRIVE HAVING FUNCTION OF DETECTING DC LINK CURRENT 审中-公开
    具有检测直流链路电流功能的电机驱动

    公开(公告)号：US20170070179A1

    公开(公告)日：2017-03-09

    申请号：US15246669

    申请日：2016-08-25

    申请人： FANUC CORPORATION

    发明人： Yuuichi Yamada

    IPC分类号： H02P29/40 ,  H02P6/08 ,  H02P27/08

    CPC分类号： H02P29/40 ,  H02H7/1225 ,  H02M1/32 ,  H02M7/5387 ,  H02M2001/0009 ,  H02P6/28 ,  H02P29/032

    摘要： A motor drive according to the present invention includes an inverter circuit for converting a direct current into an alternating current by the switching of power elements and supplying the alternating current to a motor; a drive circuit for controlling the switching of the power elements; a fuse connected in series between a terminal of a DC link unit and a terminal of the inverter circuit through a conductor; a DC link current detection circuit for detecting a DC link current based on at least one of a voltage across the fuse, a voltage across a circuit including the fuse and part of the conductor, and a voltage across part of the conductor; and a DC link overcurrent detection circuit for detecting an overcurrent when the DC link current exceeds a predetermined value, and outputting a power element off command to turn off at least one of the power elements.

    摘要翻译： 根据本发明的电动机驱动器包括：逆变器电路，用于通过功率元件的切换将交流电转换成交流电并将电流提供给电动机; 用于控制功率元件的切换的驱动电路; 通过导体将直流链路单元的端子与逆变器电路的端子串联连接的熔丝; 直流链路电流检测电路，用于基于熔丝两端的电压，包括熔丝和导体的一部分的电路两端的电压以及导体的一部分上的电压来检测直流链路电流; 以及DC链路过电流检测电路，用于当DC链路电流超过预定值时检测过电流，并且输出功率元件关断命令以关闭至少一个功率元件。