Control and protection apparatus for electric motor

    公开(公告)号:US09876461B2

    公开(公告)日:2018-01-23

    申请号:US15119047

    申请日:2015-02-12

    申请人: Eaton Corporation

    摘要: A control and protection apparatus for an electric motor, comprising an inverter (3), a first converter (1), a temperature detection apparatus (7), and a second converter (2). The first converter (1) is used for generating, on the basis of an input signal, a first control signal to control working of the inverter (3). The temperature detection apparatus (7) is used for detecting the temperature of the electric motor (4) and for acquiring a temperature signal. The second converter (2) is used for generating a second control signal on the basis of the temperature signal detected and for providing the second control signal to the inverter (3). The inverter (3) is used for controlling wording of the electric motor (4) on the basis of the first control signal and of the second control signal. The control and protection apparatus for the electric motor is low in costs and high in safety and reliability.

    Electronic fuse circuit and method of controlling the same
    2.
    发明授权
    Electronic fuse circuit and method of controlling the same 有权
    电子熔丝电路及其控制方法

    公开(公告)号:US09077175B2

    公开(公告)日:2015-07-07

    申请号:US13936303

    申请日:2013-07-08

    申请人: EATON CORPORATION

    摘要: An electronic fuse circuit for interrupting a current flowing through a power circuit includes: a trip switch structured to open and close to interrupt and permit, respectively, the current flowing through the power circuit; a current sensing circuit structured to sense when a magnitude of the current flowing through the power circuit is greater than a predetermined magnitude; a trip circuit structured to control the trip switch to open and close based on the sensed magnitude of the current flowing through the power circuit; and a processor having a routine structured to monitor a characteristic of the trip circuit and, when the monitored characteristic meets a predetermined criteria, to enter an override mode and control the trip circuit to control the trip switch to open regardless of the magnitude of the current flowing through the power circuit.

    摘要翻译: 用于中断流过电源电路的电流的电子熔丝电路包括:构造成打开和关闭中断的跳闸开关,并允许分别流过电源电路的电流; 电流感测电路,被构造为感测何时流过电源电路的电流的大小大于预定的大小; 一种跳闸电路,其被构造为基于检测到的流过电源电路的电流的大小来控制跳闸开关的断开和闭合; 以及处理器,其具有构造成监视跳闸电路的特性的例程,并且当监视特性满足预定标准时,进入超控模式并控制跳闸电路以控制跳闸开关,而不管电流的大小如何 流经电源电路。

    ELECTRONIC FUSE CIRCUIT AND METHOD OF CONTROLLING THE SAME
    3.
    发明申请
    ELECTRONIC FUSE CIRCUIT AND METHOD OF CONTROLLING THE SAME 有权
    电子保险丝电路及其控制方法

    公开(公告)号:US20150009597A1

    公开(公告)日:2015-01-08

    申请号:US13936303

    申请日:2013-07-08

    申请人: Eaton Corporation

    IPC分类号: H02H3/10 H02H3/093

    摘要: An electronic fuse circuit for interrupting a current flowing through a power circuit includes: a trip switch structured to open and close to interrupt and permit, respectively, the current flowing through the power circuit; a current sensing circuit structured to sense when a magnitude of the current flowing through the power circuit is greater than a predetermined magnitude; a trip circuit structured to control the trip switch to open and close based on the sensed magnitude of the current flowing through the power circuit; and a processor having a routine structured to monitor a characteristic of the trip circuit and, when the monitored characteristic meets a predetermined criteria, to enter an override mode and control the trip circuit to control the trip switch to open regardless of the magnitude of the current flowing through the power circuit.

    摘要翻译: 用于中断流过电源电路的电流的电子熔丝电路包括:构造成打开和关闭中断的跳闸开关,并允许分别流过电源电路的电流; 电流感测电路,被构造为感测何时流过电源电路的电流的大小大于预定的大小; 一种跳闸电路,其被构造为基于检测到的流过电源电路的电流的大小来控制跳闸开关的断开和闭合; 以及处理器,其具有构造成监视跳闸电路的特性的例程,并且当监视特性满足预定标准时,进入超控模式并控制跳闸电路以控制跳闸开关,而不管电流的大小如何 流经电源电路。