公开(公告)号：US5162710A

公开(公告)日：1992-11-10

申请号：US726292

申请日：1991-07-05

申请人： Wilhelm Reinhart ,  Helmut Lipp ,  Karl-Heinz Schultz

发明人： Wilhelm Reinhart ,  Helmut Lipp ,  Karl-Heinz Schultz

IPC分类号： H02H7/08 ,  H02H7/085

CPC分类号： H02H7/0852 ,  H02H7/0833 ,  Y10S388/934

摘要： The invention pertains to a control circuit for a collectorless DC motor where at least one power transistor (14, 16) is input-connected to each stator coil (2, 4) of the motor; said transistor is driven by at least one rotor position sensor, especially a Hall generator having commutation circuits to commute the motor current, and where a blocking protection device is provided to interrupt the motor current in an overload or blockage. The blocking protection device (26) has at least one semiconductor circuit (30) carrying the motor current which is switched through or blocked depending on its temperature.

摘要翻译： 本发明涉及一种用于无集电极直流电动机的控制电路，其中至少一个功率晶体管（14,16）输入连接到电动机的每个定子线圈（2,4）; 所述晶体管由至少一个转子位置传感器驱动，特别是具有换向电路以使马达电流上升的霍尔发生器，并且其中提供阻塞保护装置以在过载或阻塞中中断马达电流。 阻挡保护装置（26）具有承载电动机电流的至少一个半导体电路（30），该半导体电路根据其温度而被切换或阻断。