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1. 发明授权

US07733051B2 Model-based active electronic damping for stepper motors 有权
标题翻译：用于步进电机的基于模型的有源电子阻尼
公开(公告)号：US07733051B2
公开(公告)日：2010-06-08
申请号：US11942325
申请日：2007-11-19
申请人： Wang Hay Kenneth Tsui , Wai Chuen Gan , Shing Wai Tam , Gang Ou , Hon Yu Peter Ng
发明人： Wang Hay Kenneth Tsui , Wai Chuen Gan , Shing Wai Tam , Gang Ou , Hon Yu Peter Ng
IPC分类号： G05B19/40
CPC分类号： H02P8/32
摘要： 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.
摘要翻译：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。

2. 发明授权

US08631923B1 Device sorting apparatus 有权
标题翻译：设备分拣设备
公开(公告)号：US08631923B1
公开(公告)日：2014-01-21
申请号：US13630071
申请日：2012-09-28
申请人： Chak Tong Sze , Pei Wei Tsai , Wai Hong Sizto , Chunbai Wang , Wai Chuen Gan , Shing Wai Tam
发明人： Chak Tong Sze , Pei Wei Tsai , Wai Hong Sizto , Chunbai Wang , Wai Chuen Gan , Shing Wai Tam
IPC分类号： B65G37/00
CPC分类号： H01L21/67271 , B07C5/36
摘要： 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.
摘要翻译：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。

3. 发明授权

US08013562B2 Driving mechanism having position encoder for two-dimensional positioning 有权
公开(公告)号：US08013562B2
公开(公告)日：2011-09-06
申请号：US12555871
申请日：2009-09-09
申请人： Wai Chuen Gan , Gary Peter Widdowson , Shiqiang Yao , Siu Yan Ho , Hon Yu Peter Ng
发明人： Wai Chuen Gan , Gary Peter Widdowson , Shiqiang Yao , Siu Yan Ho , Hon Yu Peter Ng
IPC分类号： B64C17/06
CPC分类号： H02K16/00 , H02K11/225 , H02K41/03 , H02K2201/18
摘要： A driving mechanism comprises a fixed housing, a movable housing on which an object to be driven is mounted and a driving motor which is operative to drive the movable housing to move linearly as well as to rotate relative to the fixed housing. An inductance-type encoder determines both linear and rotary displacement of the movable housing relative to the fixed housing, whereby to provide closed-loop control of the position of the object in both linear and rotary directions.

4. 发明授权

US08692426B2 Direct current motor incorporating thermal control 有权
标题翻译：直流电机并入热控制
公开(公告)号：US08692426B2
公开(公告)日：2014-04-08
申请号：US12482843
申请日：2009-06-11
申请人： Wai Chuen Gan , Gary Peter Widdowson
发明人： Wai Chuen Gan , Gary Peter Widdowson
IPC分类号： H02K11/00 , H02K41/035
CPC分类号： H02K41/0354 , H02K15/125
摘要： A direct current motor comprises a magnet assembly having a pair of magnets for generating a magnetic field and a coil assembly located between the pair of magnets, the coil assembly and the magnet assembly being movable relative to each other. The coil assembly further comprises a first coil section and a second coil section which are electrically connected to each other. A current generator is electrically connected to the coil assembly and is operative to provide first, second and third currents. The first current is electrically connected directly to the first coil section and the second current is electrically connected directly to the second coil section whereas the third current is electrically connected to the first and second coil sections at a position connecting the first and second coil sections.
摘要翻译：直流电动机包括具有用于产生磁场的一对磁体的磁体组件和位于一对磁体之间的线圈组件，线圈组件和磁体组件可相对于彼此移动。线圈组件还包括彼此电连接的第一线圈段和第二线圈段。电流发生器电连接到线圈组件并且可操作以提供第一，第二和第三电流。第一电流直接电连接到第一线圈部分，并且第二电流直接电连接到第二线圈部分，而第三电流在连接第一和第二线圈部分的位置处电连接到第一和第二线圈部分。

5. 发明申请

US20100264755A1 DUAL-AXIS PLANAR MOTOR PROVIDING FORCE CONSTANT AND THERMAL STABILITY 有权
标题翻译：双轴平面电机提供持续和热稳定性
公开(公告)号：US20100264755A1
公开(公告)日：2010-10-21
申请号：US12427224
申请日：2009-04-21
申请人： Gary Peter Widdowson , Wai Chuen Gan
发明人： Gary Peter Widdowson , Wai Chuen Gan
IPC分类号： H02K41/03
CPC分类号： H02K41/03 , H02K2201/18
摘要： A motor is provided comprising a magnet assembly having two rows of magnets arranged along a first axis, which are separated by a gap for generating magnetic flux lines between the rows of magnets. The motor further comprises a coil bracket which is located within the gap between the two rows of magnets. The coil bracket includes a first set of coils arranged along the first axis that are operative to drive movement of the coil bracket relative to the magnet assembly along the first axis. A second set of coils arranged along the first axis are operative to drive movement of the coil bracket relative to the magnet assembly along a second axis which is orthogonal to the first axis between a first end position and a second end position along the second axis. The first set of coils is fully located within the flux lines generated by the magnet assembly at both the first and second end positions of the coil bracket and the second set of coils is located at least partially outside the flux lines generated by the magnet assembly at the second end position of the coil bracket.
摘要翻译：提供一种电动机，其包括具有沿着第一轴布置的两排磁体的磁体组件，所述磁体组被间隔开，以在所述磁体排之间产生磁通线。电动机还包括位于两排磁体之间的间隙内的线圈支架。线圈支架包括沿着第一轴线布置的第一组线圈，其可操作以驱动线圈支架相对于磁体组件沿着第一轴线的运动。沿着第一轴线布置的第二组线圈可操作以沿着沿着第二轴线的第一端部位置和第二端部位置之间的与第一轴线正交的第二轴线驱动线圈支架相对于磁体组件的运动。第一组线圈完全位于由磁体组件在线圈支架的第一和第二端部位置处产生的磁通线内，并且第二组线圈至少部分地位于由磁体组件产生的磁通线的外侧线圈支架的第二端位置。

6. 发明申请

US20100194328A1 SYSTEM FOR MAINTAINING THERMAL STABILITY OF A MOTION STAGE 有权
标题翻译：维持运动阶段的热稳定性系统
公开(公告)号：US20100194328A1
公开(公告)日：2010-08-05
申请号：US12366275
申请日：2009-02-05
申请人： Gary Peter WIDDOWSON , Wai Chuen Gan , Cheuk Wah Tang , Chor Fai Wong
发明人： Gary Peter WIDDOWSON , Wai Chuen Gan , Cheuk Wah Tang , Chor Fai Wong
IPC分类号： G05B19/404 , G05D23/30
CPC分类号： G05B19/404 , G05B2219/37429 , G05B2219/49209 , Y02P90/265
摘要： A system for maintaining thermal stability of a motion stage driven by a motor comprises a motion current generator operative to produce a motion current to drive the motion stage to move and a thermal current generator operative to produce a thermal current to dissipate heat in the motion stage for controlling a temperature of the motion stage without producing corresponding movement of the motion stage. A summation controller is operative to combine the motion current with the thermal current, and to produce a combined current output to the motor.
摘要翻译：用于维持由电动机驱动的运动台的热稳定性的系统包括运动电流发生器，其运行以产生运动电流以驱动运动级运动，并且热电发生器可操作以产生热电流以在运动级中散热用于控制运动舞台的温度而不产生运动舞台的相应运动。总和控制器可操作以将运动电流与热电流组合，并产生组合的电流输出到电动机。

7. 发明授权

US08729745B2 Multiple-phase linear switched reluctance motor 有权
标题翻译：多相线性开关磁阻电机
公开(公告)号：US08729745B2
公开(公告)日：2014-05-20
申请号：US12910969
申请日：2010-10-25
申请人： Wai Chuen Gan , Gary Peter Widdowson , Siu Yan Ho
发明人： Wai Chuen Gan , Gary Peter Widdowson , Siu Yan Ho
IPC分类号： H02K41/02 , H02K41/03
CPC分类号： H02K41/03 , H02P25/06 , H02P25/08
摘要： A linear switched reluctance motor comprises a movable coil bracket including first and second coil assemblies. Each of the first and second coil assemblies further comprises a plurality of coils separately wound around a plurality of motor coil cores, each of the coils being configured to receive a sinusoidal current at a different phase from other coils comprised in the same coil assembly. Tooth members of a stator track are located adjacent to the motor coil cores such that a magnetic flux path is created which passes through the motor coil core, the stator track and an air gap between the motor coil core and the stator track. A multiple-phase motor driver electrically connected to the first and second coil assemblies generates symmetric multiple-phase sinusoidal currents for driving the motor.
摘要翻译：线性开关磁阻电动机包括包括第一和第二线圈组件的可动线圈支架。第一线圈组件和第二线圈组件中的每一个还包括分别卷绕在多个电动机线圈芯上的多个线圈，每个线圈被配置为接收与包括在同一线圈组件中的其它线圈不同相位的正弦电流。定子轨道的齿构件位于电动机线圈芯附近，使得产生通过电动机线圈芯，定子轨道和电动机线圈芯与定子轨道之间的气隙的磁通路径。电连接到第一和第二线圈组件的多相电动机驱动器产生用于驱动电动机的对称多相正弦电流。

8. 发明授权

US08324848B2 System for maintaining thermal stability of a motion stage 有权
标题翻译：用于保持运动阶段的热稳定性的系统
公开(公告)号：US08324848B2
公开(公告)日：2012-12-04
申请号：US12366275
申请日：2009-02-05
申请人： Gary Peter Widdowson , Wai Chuen Gan , Cheuk Wah Tang , Chor Fai Wong
发明人： Gary Peter Widdowson , Wai Chuen Gan , Cheuk Wah Tang , Chor Fai Wong
IPC分类号： H02P6/00 , H02P5/00 , H02P7/00 , G05D23/275 , G01N25/00
CPC分类号： G05B19/404 , G05B2219/37429 , G05B2219/49209 , Y02P90/265
摘要： A system for maintaining thermal stability of a motion stage driven by a motor comprises a motion current generator operative to produce a motion current to drive the motion stage to move and a thermal current generator operative to produce a thermal current to dissipate heat in the motion stage for controlling a temperature of the motion stage without producing corresponding movement of the motion stage. A summation controller is operative to combine the motion current with the thermal current, and to produce a combined current output to the motor.
摘要翻译：用于维持由电动机驱动的运动台的热稳定性的系统包括运动电流发生器，其运行以产生运动电流以驱动运动级运动，并且热电发生器可操作以产生热电流以在运动级中散热用于控制运动舞台的温度而不产生运动舞台的相应运动。总和控制器可操作以将运动电流与热电流组合，并产生组合的电流输出到电动机。

9. 发明授权

US08013561B2 Driving mechanism having position encoder for two-dimensional positioning 有权
标题翻译：具有用于二维定位的位置编码器的驱动机构
公开(公告)号：US08013561B2
公开(公告)日：2011-09-06
申请号：US12206831
申请日：2008-09-09
申请人： Wai Chuen Gan , Gary Peter Widdowson
发明人： Wai Chuen Gan , Gary Peter Widdowson
IPC分类号： B64C17/06
CPC分类号： H02K41/03 , H02K11/225 , H02K16/00 , H02K21/16 , H02K24/00 , H02K2201/18
摘要： A driving mechanism comprises a fixed housing, a movable housing on which an object to be driven is mounted and a driving motor which is operative to drive the movable housing to move linearly as well as to rotate relative to the fixed housing. An inductance-type encoder determines both linear and rotary displacement of the movable housing relative to the fixed housing, whereby to provide closed-loop control of the position of the object in both linear and rotary directions.
摘要翻译：驱动机构包括：固定壳体，安装被驱动物体的可动壳体;以及驱动马达，其可操作地驱动可动壳体线性运动以及相对于固定壳体旋转。电感型编码器确定可移动壳体相对于固定壳体的线性和旋转位移，从而在线性和旋转方向上提供物体的位置的闭环控制。

10. 发明授权

US07808133B1 Dual-axis planar motor providing force constant and thermal stability 有权
标题翻译：双轴平面电机提供力常数和热稳定性
公开(公告)号：US07808133B1
公开(公告)日：2010-10-05
申请号：US12427224
申请日：2009-04-21
申请人： Gary Peter Widdowson , Wai Chuen Gan
发明人： Gary Peter Widdowson , Wai Chuen Gan
IPC分类号： H02K41/02
CPC分类号： H02K41/03 , H02K2201/18
摘要： A motor is provided comprising a magnet assembly having two rows of magnets arranged along a first axis, which are separated by a gap for generating magnetic flux lines between the rows of magnets. The motor further comprises a coil bracket which is located within the gap between the two rows of magnets. The coil bracket includes a first set of coils arranged along the first axis that are operative to drive movement of the coil bracket relative to the magnet assembly along the first axis. A second set of coils arranged along the first axis are operative to drive movement of the coil bracket relative to the magnet assembly along a second axis which is orthogonal to the first axis between a first end position and a second end position along the second axis. The first set of coils is fully located within the flux lines generated by the magnet assembly at both the first and second end positions of the coil bracket and the second set of coils is located at least partially outside the flux lines generated by the magnet assembly at the second end position of the coil bracket.
摘要翻译：提供一种电动机，其包括具有沿着第一轴布置的两排磁体的磁体组件，所述磁体组被间隔开，以在所述磁体排之间产生磁通线。电动机还包括位于两排磁体之间的间隙内的线圈支架。线圈支架包括沿着第一轴线布置的第一组线圈，其可操作以驱动线圈支架相对于磁体组件沿着第一轴线的运动。沿着第一轴线布置的第二组线圈可操作以沿着沿着第二轴线的第一端部位置和第二端部位置之间的与第一轴线正交的第二轴线驱动线圈支架相对于磁体组件的运动。第一组线圈完全位于由磁体组件在线圈支架的第一和第二端部位置处产生的磁通线内，并且第二组线圈至少部分地位于由磁体组件产生的磁通线的外侧线圈支架的第二端位置。

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