公开(公告)号：US08781786B2

公开(公告)日：2014-07-15

申请号：US13208666

申请日：2011-08-12

Applicant: Chin Boon Huam

Inventor： Chin Boon Huam

IPC: G06F15/00 ,  G11B19/28 ,  H02P6/18 ,  H02P6/16 ,  B60L11/18

CPC classification number: G11B19/28 ,  B60L11/1807 ,  H02P6/17 ,  H02P6/18

Abstract: A circuit includes a comparator having input terminals configured to be coupled across a drive transistor adapted to drive a phase of a motor. The comparator senses a drive current of the motor phase, said sensed drive current represented by a periodic signal whose period is indicative of motor speed. A motor speed calculation circuit receives the periodic signal and processes the periodic signal to determine a speed of the motor.

Abstract translation: 电路包括比较器，其具有被配置为跨越适于驱动电动机的相位的驱动晶体管耦合的输入端子。 比较器感测电动机相的驱动电流，所述感测的驱动电流由其周期表示电动机速度的周期性信号表示。 电机速度计算电路接收周期信号并处理周期信号以确定电动机的速度。

公开(公告)号：US20130041620A1

公开(公告)日：2013-02-14

申请号：US13208666

申请日：2011-08-12

Applicant: Chin Boon Huam

Inventor： Chin Boon Huam

IPC: G06F15/00

CPC classification number: G11B19/28 ,  B60L11/1807 ,  H02P6/17 ,  H02P6/18

Abstract: A circuit includes a comparator having input terminals configured to be coupled across a drive transistor adapted to drive a phase of a motor. The comparator senses a drive current of the motor phase, said sensed drive current represented by a periodic signal whose period is indicative of motor speed. A motor speed calculation circuit receives the periodic signal and processes the periodic signal to determine a speed of the motor.

Abstract translation: 电路包括比较器，其具有被配置为跨越适于驱动电动机的相位的驱动晶体管耦合的输入端子。 比较器感测电动机相的驱动电流，所述感测的驱动电流由其周期表示电动机速度的周期性信号表示。 电机速度计算电路接收周期信号并处理周期信号以确定电动机的速度。