公开(公告)号：US07733051B2

公开(公告)日：2010-06-08

申请号：US11942325

申请日：2007-11-19

Applicant: Wang Hay Kenneth Tsui ,  Wai Chuen Gan ,  Shing Wai Tam ,  Gang Ou ,  Hon Yu Peter Ng

Inventor： Wang Hay Kenneth Tsui ,  Wai Chuen Gan ,  Shing Wai Tam ,  Gang Ou ,  Hon Yu Peter Ng

IPC: G05B19/40

CPC classification number: H02P8/32

Abstract: A method for damping vibrations in a stepper motor with micro-stepping control which comprises the steps of identifying the force amplitudes and phase shifts of multiple harmonic detent torques of the stepper motor, such as the first, second and fourth harmonic detent torques, and tuning the stepper motor with different current commands until minimum friction and resistive torque are obtained. Thereafter, a compensating harmonic current derived from said force amplitudes and phase shifts of the said multiple harmonic detent torques is injected into a current command during operation of the stepper motor to compensate for torque ripples.

Abstract translation: 一种用于减轻步进电机中的振动的方法，其包括以下步骤：识别步进电动机的多次谐波抑制转矩的力幅度和相移，例如第一，第二和第四谐波定位转矩，以及调谐 获得具有不同电流指令的步进电机，直到获得最小摩擦和阻力矩。 此后，在步进电动机的操作期间，将来自所述多个谐波定子转矩的力幅度和相移的补偿谐波电流注入到电流指令中，以补偿转矩波动。

公开(公告)号：US20080116835A1

公开(公告)日：2008-05-22

申请号：US11942325

申请日：2007-11-19

Applicant: Wang Hay Kenneth TSUI ,  Wai Chuen GAN ,  Shing Wai TAM ,  Gang OU ,  Hon Yu Peter NG

Inventor： Wang Hay Kenneth TSUI ,  Wai Chuen GAN ,  Shing Wai TAM ,  Gang OU ,  Hon Yu Peter NG

IPC: H02P8/32

CPC classification number: H02P8/32

Abstract: A method for damping vibrations in a stepper motor with micro-stepping control which comprises the steps of identifying the force amplitudes and phase shifts of multiple harmonic detent torques of the stepper motor, such as the first, second and fourth harmonic detent torques, and tuning the stepper motor with different current commands until minimum friction and resistive torque are obtained. Thereafter, a compensating harmonic current derived from said force amplitudes and phase shifts of the said multiple harmonic detent torques is injected into a current command during operation of the stepper motor to compensate for torque ripples.

Abstract translation: 一种用于减轻步进电机中的振动的方法，其包括以下步骤：识别步进电动机的多次谐波抑制转矩的力幅度和相移，例如第一，第二和第四谐波定位转矩，以及调谐 获得具有不同电流指令的步进电机，直到获得最小摩擦和阻力矩。 此后，在步进电动机的操作期间，将来自所述多个谐波定子转矩的力幅度和相移的补偿谐波电流注入到电流指令中，以补偿转矩波动。

公开(公告)号：US08631923B1

公开(公告)日：2014-01-21

申请号：US13630071

申请日：2012-09-28

Applicant: Chak Tong Sze ,  Pei Wei Tsai ,  Wai Hong Sizto ,  Chunbai Wang ,  Wai Chuen Gan ,  Shing Wai Tam

Inventor： Chak Tong Sze ,  Pei Wei Tsai ,  Wai Hong Sizto ,  Chunbai Wang ,  Wai Chuen Gan ,  Shing Wai Tam

IPC: B65G37/00

CPC classification number: H01L21/67271 ,  B07C5/36

Abstract: A device sorting apparatus 100 is disclosed herein. In a described embodiment, the device sorting apparatus 100 comprises a plurality of bin connectors 120 for coupling to respective bins for storing sorted devices and a rotary distribution module 102 for receiving a device 200 to be sorted and for discharging the device 200 selectively into one of the bin connectors 120 to enable the device 200 to be unloaded to the respective bin. The device sorting apparatus 100 further comprises a sensor 110 coupled to the rotary distribution module 102 for detecting the discharge of the device 200, and which is rotatable together with the rotary distribution module 102; and a rotary transformer 400 for powering the sensor 110.

Abstract translation: 本文公开了一种装置分类装置100。 在所描述的实施例中，装置分类装置100包括多个箱连接器120，用于联接到相应的箱，用于存储分类装置;以及旋转分配模块102，用于接收待分类的装置200，并将装置200选择性地排放到 箱连接器120以使装置200能够卸载到相应的仓。 装置分拣装置100还包括耦合到旋转分配模块102的传感器110，用于检测装置200的排放，并与旋转分配模块102一起旋转; 以及用于为传感器110供电的旋转变压器400。