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    • 1. 发明申请
    • TORQUE CONTROL CIRCUIT FOR IMPACT TOOL
    • 扭矩工具扭矩控制电路
    • US20090302798A1
    • 2009-12-10
    • US12136072
    • 2008-06-10
    • CHEN-KU WEI
    • CHEN-KU WEI
    • G05B17/02
    • H02P7/295
    • A torque control circuit includes a motor driving circuit, a motor operating current detection circuit, a reference voltage generation circuit, a maximum motor current setting circuit, a torque setting circuit, an information output circuit, a regulated-voltage power supply circuit, a motor operating temperature detection circuit, and a control circuit. The control circuit includes an integrated circuit to carry out functions of reading information detection sources, processing, and instruction for execution of torque control and output terminals of the reference voltage generation circuit, the maximum motor current setting circuit, the motor operating temperature detection circuit, and the motor impedance torque setting circuit are respectively connected to corresponding input terminals of the integrated circuit to carry out desired control of torque supplied to the impact tool.
    • 扭矩控制电路包括电动机驱动电路,电动机工作电流检测电路,参考电压产生电路,最大电动机电流设定电路,转矩设定电路,信息输出电路,稳压电源电路,电动机 工作温度检测电路和控制电路。 控制电路具有集成电路,用于执行读取信息检测源,处理和执行参考电压产生电路的转矩控制和输出端子的指令,最大电动机电流设定电路,电动机工作温度检测电路, 并且电动机阻抗转矩设定电路分别连接到集成电路的相应输入端子,以执行提供给冲击工具的转矩的期望控制。