公开(公告)号：WO2008148470A3

公开(公告)日：2009-01-29

申请号：PCT/EP2008004143

申请日：2008-05-23

Applicant: MAYR CHRISTIAN GMBH & CO KG ,  UNSINN KARL ,  MARTEN ANDREAS

Inventor： UNSINN KARL ,  MARTEN ANDREAS

IPC: H02P3/04 ,  H02M7/162

CPC classification number: H02M7/162 ,  H02P15/00

Abstract: Disclosed is a circuit for operating a coil of an electrically liftable safety brake, to be connected to AC inputs having different (preferably single-phase) operating voltages. Said circuit comprises: a rectifier circuit which is connected to the input terminals and is used for generating a periodically changing direct voltage; output terminals for supplying the direct voltage generated by the rectifier to a coil; one or more electronic valves/switches for switching the direct current on or off anytime; preferably a freewheeling diode that is connected to the output terminals in order to keep the current flowing through the coil during the off-state interval of the electronic valve/switch; a control loop which is connected to the output terminals and measures the direct voltage applied to the coil or calculates or derives said direct voltage from other measured voltages (e.g. input voltage, voltage of the intermediate circuit, valve/switch voltage, etc.) and triggers the electronic valve/switch in such a way that the direct voltage applied to the coil remains constant; and a mechanical/electronic switch in the power supply to the coil in order to interrupt and quickly switch off the free-wheeling circuit.

Abstract translation: 电路用于电luftbaren安全制动器的线圈的具有不同工作电压的操作，用于连接到交流电源（优选为单相）：一个连接到所述整流电路的输入端子，用于产生一个周期性变化的直流电压输出端子，用于向线圈供电，用 整流器的直流电压产生的，一个或多个电子阀/开关，在任何时候一次开启和关闭，最好是续流二极管，其连接到输出端子，以便在电子膨胀阀的关闭时间，以保持所述直流/切换过线圈的电流的流动 （等，例如，输入电压，中间电路电压时，阀\开关电压）来计算连接到测量测量或导出施加到线圈上的直流电压，或其他电压输出端子控制电路 和施加到线圈的直流电压保持恒定，并且在电流供应到线圈的机械/电子开关以中断和续流电路的快速关断，从而激活电子阀/开关。