CONTROLLER AND CONTROL METHOD FOR ALTERNATING CURRENT CONTACTOR
    21.
    发明公开
    CONTROLLER AND CONTROL METHOD FOR ALTERNATING CURRENT CONTACTOR 有权
    交流电流接触器的控制器和控制方法

    公开(公告)号:EP3176803A1

    公开(公告)日:2017-06-07

    申请号:EP15827157.7

    申请日:2015-07-23

    IPC分类号: H01H47/02

    摘要: A controller for an alternating current contactor. The controller comprises: a filtering and rectification circuit (101, 102), which filters and rectifies external alternating current; an electromagnet component (103), which is driven by an output of the filtering and rectification circuit and performs actions of attraction, holding or releasing; a power transistor circuit (104), which is connected to the electromagnet component; and a microcontroller (112), which controls on or off of the power transistor circuit to control the electromagnet component so as to perform the actions of attraction, holding or releasing. The controller further comprises: a voltage control loop, which provides a voltage feedback signal to the microcontroller and the microcontroller generates a control signal according to the voltage feedback signal, wherein the control signal is a PWM control signal having different duty cycles during the attraction and holding of the electromagnet component so that the current does not exceed a predetermined current threshold during the attraction and holding of the electromagnet component; and a current control loop, which provides a current feedback signal to the microcontroller and the microcontroller turns off the power transistor circuit upon detecting an overcurrent exceeding the current threshold.

    摘要翻译: 交流接触器的控制器。 该控制器包括:滤波和整流电路(101,102),其对外部交流电流进行滤波和整流; 由所述滤波整流电路的输出驱动并执行吸引,保持或释放动作的电磁铁部件(103) 功率晶体管电路(104),其连接到电磁体部件; 和微控制器(112),其控制功率晶体管电路的开启或关闭以控制电磁体部件以执行吸引,保持或释放的动作。 控制器还包括:电压控制回路,其向微控制器提供电压反馈信号,并且微控制器根据电压反馈信号生成控制信号,其中控制信号是在吸引期间具有不同占空比的PWM控制信号; 在电磁体部件的吸引和保持期间保持电磁体部件,使得电流不超过预定的电流阈值; 以及电流控制回路,其向微控制器提供电流反馈信号,并且在检测到超过电流阈值的过电流时,微控制器关断功率晶体管电路。

    A relay for automatically selecting a monitoring range
    25.
    发明公开
    A relay for automatically selecting a monitoring range 有权
    中继用于自动选择监视范围

    公开(公告)号:EP2709135A3

    公开(公告)日:2014-12-31

    申请号:EP13184092.8

    申请日:2013-09-12

    IPC分类号: H01H47/02 G01R19/22

    CPC分类号: H01H47/22 H01H47/02

    摘要: A relay for automatically selecting a monitoring range for monitoring a parameter of an input source and a method for monitoring a parameter of an input source can be provided whereby the relay comprises one or more terminals for coupling to the input source; a plurality of switchable circuits coupled to the one or more terminals; a processing module coupled to the plurality of switchable circuits for automatically selecting a monitoring range from a plurality of monitoring ranges based on a value of the parameter of the input source, each monitoring range associated with one or more of said switchable circuits; and a relay switch being configured to provide or disrupt electrical communication to a circuit, based on a trigger signal provided by the processing module. A signal conditioning module may also be provided for e.g. conditioning signals prior to selection of the monitoring range.