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公开(公告)号：US6008603A
公开(公告)日：1999-12-28
申请号：US181930
申请日：1998-10-28
申请人： Steven C. Jones , Keith Wolford
发明人： Steven C. Jones , Keith Wolford
CPC分类号： H02P25/03 , H02P25/024
摘要： A novel two-phase brushless motor drive assembly. The motor drive assembly is made of two parts, a motor assemble and a motor control circuit.The motor assembly, receives a first wire providing electric power, a second wire providing a ground connection, and a third wire. The motor assembly includes, a two-phase brushless motor. It also includes a motor drive circuit, responsive to a speed control voltage signal on the third wire and the electric power on the first wire, providing drive power to the motor to drive the motor to a speed determined by the speed control voltage signal. The motor assembly also includes a sensor circuit providing a sensed speed current signal on the third wire, having a current representing the rotational speed of the motor.The motor control circuit is coupled to the third wire, and includes a speed control circuit responsive to a speed control signal for generating the speed control voltage signal on the third wire at a voltage corresponding to a speed indicated by the speed control signal. It also includes a current sensing circuit providing a speed signal, corresponding to the sensed speed current signal on the third wire, such that the voltage of the speed control voltage signal is substantially unaffected by changes in the current of the sensed speed current signal, and such that the current of the sensed speed current signal is substantially unaffected by changes in the voltage of the speed control voltage signal.
摘要翻译： 一种新型的两相无刷电机驱动装置。 电机驱动组件由两部分组成，一组电动机组合和一个电动机控制电路。 马达组件接收提供电力的第一线，提供接地连接的第二线和第三线。 电动机组件包括两相无刷电动机。 它还包括电动机驱动电路，响应于第三线上的速度控制电压信号和第一线上的电力，向电动机提供驱动电力以将电动机驱动到由速度控制电压信号确定的速度。 马达组件还包括传感器电路，其在第三导线上提供感测的速度电流信号，其具有表示马达转速的电流。 电动机控制电路耦合到第三线，并且包括响应于速度控制信号的速度控制电路，用于以对应于由速度控制信号指示的速度的电压在第三线上产生速度控制电压信号。 它还包括电流感测电路，其提供对应于第三导线上感测到的速度电流信号的速度信号，使得速度控制电压信号的电压基本上不受感测的速度电流信号的电流的变化的影响，以及 使得感测的速度电流信号的电流基本上不受速度控制电压信号的电压的变化的影响。
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公开(公告)号：US5952798A
公开(公告)日：1999-09-14
申请号：US181252
申请日：1998-10-28
申请人： Steven C. Jones , Keith Wolford
发明人： Steven C. Jones , Keith Wolford
CPC分类号： H02P6/08
摘要： A novel two-phase brushless motor drive assembly. The motor drive assembly is made of two parts, a motor assemble and a motor control circuit.The motor assembly, receives a first wire providing electric power, a second wire providing a ground connection, and a third wire. The motor assembly includes, a two-phase brushless motor. It also includes a motor drive circuit, responsive to a speed control voltage signal on the third wire and the electric power on the first wire, providing drive power to the motor to drive the motor to a speed determined by the speed control voltage signal. The motor assembly also includes a sensor circuit providing a sensed speed current signal on the third wire, having a current representing the rotational speed of the motor.The motor control circuit is coupled to the third wire, and includes a speed control circuit responsive to a speed control signal for generating the speed control voltage signal on the third wire at a voltage corresponding to a speed indicated by the speed control signal. It also includes a current sensing circuit providing a speed signal, corresponding to the sensed speed current signal on the third wire, such that the voltage of the speed control voltage signal is substantially unaffected by changes in the current of the sensed speed current signal, and such that the current of the sensed speed current signal is substantially unaffected by changes in the voltage of the speed control voltage signal.
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