公开(公告)号：US08432111B2

公开(公告)日：2013-04-30

申请号：US12969850

申请日：2010-12-16

申请人： Teng-Hui Lee ,  Chan-Chih Liu

发明人： Teng-Hui Lee ,  Chan-Chih Liu

IPC分类号： H02P6/00

CPC分类号： H02P6/181 ,  H02P6/08 ,  H02P6/182 ,  H02P6/21 ,  Y02P80/116

摘要： A method of the Pulse Amplitude Modulation for the Sensorless Brushless motor, which includes a start-up circuit, a phase detect circuit, a phase commutation circuit, a driving circuit, BEMF detection circuit, and frequency detector, utilizes the control signal of the phase commutation circuit to control the driving circuit so as to drive the outer motor coil and detect the control signal for the driving motor driving circuit by a detection circuit. The motor system can be controlled to reduce the discharge speed to avoid the motor driving circuit shutdown and further speed up the start-up time for the next charging period of the motor driving circuit to achieve the effect of low speed rotation and power saving.

摘要翻译： 一种用于无传感器无刷电动机的脉冲幅度调制方法，包括启动电路，相位检测电路，相位换向电路，驱动电路，BEMF检测电路和频率检测器，利用相位的控制信号 换向电路，用于控制驱动电路以驱动外部电动机线圈，并通过检测电路检测用于驱动电动机驱动电路的控制信号。 可以控制电机系统降低放电速度，避免电机驱动电路关闭，进一步加快电机驱动电路下一个充电周期的启动时间，达到低速旋转和省电的效果。

公开(公告)号：US20120043919A1

公开(公告)日：2012-02-23

申请号：US12969850

申请日：2010-12-16

申请人： Teng-Hui Lee ,  Chan-Chih Liu

发明人： Teng-Hui Lee ,  Chan-Chih Liu

IPC分类号： H02P6/08 ,  H02P6/20 ,  H02P6/18

CPC分类号： H02P6/181 ,  H02P6/08 ,  H02P6/182 ,  H02P6/21 ,  Y02P80/116

摘要： A method of the Pulse Amplitude Modulation for the Sensorless Brushless motor, which includes a start-up circuit, a phase detect circuit, a phase commutation circuit, a driving circuit, BEMF detection circuit, and frequency detector, utilizes the control signal of the phase commutation circuit to control the driving circuit so as to drive the outer motor coil and detect the control signal for the driving motor driving circuit by a detection circuit. The motor system can be controlled to reduce the discharge speed to avoid the motor driving circuit shutdown and further speed up the start-up time for the next charging period of the motor driving circuit to achieve the effect of low speed rotation and power saving.

摘要翻译： 一种用于无传感器无刷电动机的脉冲幅度调制方法，包括启动电路，相位检测电路，相位换向电路，驱动电路，BEMF检测电路和频率检测器，利用相位的控制信号 换向电路，用于控制驱动电路以驱动外部电动机线圈，并通过检测电路检测用于驱动电动机驱动电路的控制信号。 可以控制电机系统降低放电速度，避免电机驱动电路关闭，进一步加快电机驱动电路下一个充电周期的启动时间，达到低速旋转和省电的效果。

公开(公告)号：US08354807B2

公开(公告)日：2013-01-15

申请号：US12967174

申请日：2010-12-14

申请人： Teng-Hui Lee ,  Chan-Chih Liu

发明人： Teng-Hui Lee ,  Chan-Chih Liu

IPC分类号： H02P6/04

CPC分类号： H02P6/182 ,  H02P6/20

摘要： An anti-noise method for the Direct Current Brushless motor System, which includes a startup circuit, phase detective circuit, motor phase commutation circuit, driving circuit, BEMF detective circuit, and frequency detector, utilizes the BEMF detective circuit to detect the BEMF induced from the coils of the outer motor, and utilizes the sampled voltage phase to determine rotation speed and phase of the external motor by the phase detection circuit and frequency detector. Further, the sampling voltage of the BEMF detection circuit is feedback controlled by the frequency detector, utilized to keep good BEMF to noise ratio, and avoids the BEMF sampling error from the system.

摘要翻译： 直流无刷电机系统的抗噪声方法，包括启动电路，相位检测电路，电机相位换向电路，驱动电路，BEMF检测电路和频率检测器，利用BEMF检测电路检测BEMF诱发的BEMF 外部电机的线圈，并利用采样的电压相位来确定相位检测电路和频率检测器的外部电机的转速和相位。 此外，BEMF检测电路的采样电压由频率检测器反馈控制，用于保持良好的BEMF噪声比，并避免系统中的BEMF采样误差。

公开(公告)号：US20120038297A1

公开(公告)日：2012-02-16

申请号：US12967174

申请日：2010-12-14

申请人： Teng-Hui Lee ,  Chan-Chih Liu

发明人： Teng-Hui Lee ,  Chan-Chih Liu

IPC分类号： H02P6/20

CPC分类号： H02P6/182 ,  H02P6/20

摘要： An anti-noise method for the Direct Current Brushless motor System, which includes a startup circuit, phase detective circuit, motor phase commutation circuit, driving circuit, BEMF detective circuit, and frequency detector, utilizes the BEMF detective circuit to detect the BEMF induced from the coils of the outer motor, and utilizes the sampled voltage phase to determine rotation speed and phase of the external motor by the phase detection circuit and frequency detector. Further, the sampling voltage of the BEMF detection circuit is feedback controlled by the frequency detector, utilized to keep good BEMF to noise ratio, and avoids the BEMF sampling error from the system.

摘要翻译： 直流无刷电机系统的抗噪声方法，包括启动电路，相位检测电路，电机相位换向电路，驱动电路，BEMF检测电路和频率检测器，利用BEMF检测电路检测BEMF诱发的BEMF 外部电机的线圈，并利用采样的电压相位来确定相位检测电路和频率检测器的外部电机的转速和相位。 此外，BEMF检测电路的采样电压由频率检测器反馈控制，用于保持良好的BEMF噪声比，并避免系统中的BEMF采样误差。