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    • 5. 发明授权
    • Braking circuit for a door actuator with a generatively operable electrical motor
    • 具有可执行电动马达的门执行机构的制动电路
    • US08248005B2
    • 2012-08-21
    • US12821605
    • 2010-06-23
    • Martin Römer
    • Martin Römer
    • H02P3/22
    • H02P3/12E05Y2400/302
    • A braking circuit is adapted to supply generatively produced energy of the motor as load resistance to a bipolar transistor. The braking circuit has a voltage regulator, which controls a voltage, applied to the base terminal of the bipolar transistor to achieve an associated controlled voltage based on a reference voltage. A first power supply connector of the electrical motor, in the generator mode of operation of the electrical motor, is coupled to a collector terminal of the bipolar transistor and to the voltage input of a voltage regulator. A second power supply connector of the electrical motor is coupled to an emitter terminal of the bipolar transistor and is coupled to a reference input of the voltage regulator via a resistive branch including at least one electrical resistor.
    • 一种制动电路适用于向双极型晶体管提供电动机的生成能量作为负载电阻。 制动电路具有电压调节器,其控制施加到双极晶体管的基极端子的电压,以基于参考电压实现相关的受控电压。 在电动机的发电机工作模式下,电动机的第一电源连接器耦合到双极晶体管的集电极端子和电压调节器的电压输入端。 电动机的第二电源连接器耦合到双极晶体管的发射极端子,并且经由包括至少一个电阻器的电阻支路耦合到电压调节器的基准输入端。