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1. 发明授权

US06593715B1 Single-phase motor with a conversion circuit 失效
标题翻译：单相电机带有转换电路
公开(公告)号：US06593715B1
公开(公告)日：2003-07-15
申请号：US10044970
申请日：2002-01-15
申请人： Alex Horng , Ming-Sheng Wang , Ying-Ya Lu
发明人： Alex Horng , Ming-Sheng Wang , Ying-Ya Lu
IPC分类号： H02K2908
CPC分类号： H02P6/26
摘要： A single-phase motor comprises a [US79KUA] two-phase motor driver IC, a conversion circuit, and a coil for a motor. The driver IC includes two outputs that are serially connected to the conversion circuit and then connected to the coil. The conversion circuit includes two transistors respectively connected two ends of the coil. The outputs of the driver IC respectively send out alternate on/off signals to respectively turn the transistors on and off, thereby controlling directions of current passing the coil. Thus, the coil generates alternative magnetic fields as a result of alternative directions of the current to thereby drive the rotor.
摘要翻译：单相电动机包括[US79KUA]两相电动机驱动器IC，转换电路和用于电动机的线圈。驱动器IC包括串联连接到转换电路然后连接到线圈的两个输出。转换电路包括分别连接线圈两端的两个晶体管。驱动器IC的输出分别发出交替的开/关信号，分别使晶体管导通和关断，从而控制通过线圈的电流方向。因此，线圈由于电流的替代方向产生替代磁场，从而驱动转子。

2. 发明授权

US06437526B1 Commutation system for torque ripple minimization 失效
标题翻译：用于转矩脉动最小化的换向系统
公开(公告)号：US06437526B1
公开(公告)日：2002-08-20
申请号：US09657887
申请日：2000-09-08
申请人： Benoit Derouane , Sunil Keshava Murthy , Tomy Sebastian , Buyun Liu
发明人： Benoit Derouane , Sunil Keshava Murthy , Tomy Sebastian , Buyun Liu
IPC分类号： H02K2908
CPC分类号： B62D5/046 , H02K29/08 , H02P6/10
摘要： A system for reducing torque ripple in an electric motor, comprising an electric motor having a stator and a rotor, a first set of N Hall sensors, a second set of N Hall sensors, a controller, and wherein said N Hall sensors in each said set of Hall sensors is spaced 360/N electrical degrees apart and said first and second sets of Hall sensors are spaced T electrical degrees apart, and wherein said controller is adapted to provide increased current during an overlap period detected by said Hall sensors.
摘要翻译：一种用于减小电动机中的转矩波动的系统，包括具有定子和转子的电动机，第一组N个霍尔传感器，第二组N个霍尔传感器，一个控制器，并且其中每个所述的N个霍尔传感器霍尔传感器组间隔开360 / N电角度，所述第一组霍尔传感器和第二组霍尔传感器间隔开T电度，并且其中所述控制器适于在由所述霍尔传感器检测到的重叠周期期间提供增加的电流。

3. 发明授权

US06417587B1 Motor 失效
标题翻译：发动机
公开(公告)号：US06417587B1
公开(公告)日：2002-07-09
申请号：US08839166
申请日：1997-04-23
申请人： Izumi Komatsu , Hirohiko Katsuno
发明人： Izumi Komatsu , Hirohiko Katsuno
IPC分类号： H02K2908
CPC分类号： H02K29/08
摘要： A motor comprises a rotor having an index signal generating portion on a rotor magnet and a magnetic resistance sensor having a magneto-sensitive surface. The sensor is positioned on a stator of the motor facing the index signal generating portion of the rotor with a predetermined gap. The sensor functions to sense an index signal in the magnetic field generated by the index signal generating portion during the rotation of the rotor. A speed detection circuit is included for detecting the speed of the motor based on the detection results of the magnetic resistance sensor. The index generating portion forms a magnetic area in which a magnetic flux intensity in a plane orthogonal to the principal magnetic flux of the index signal generating portion is greater than the rated sensitivity of the magnetic resistance sensor. The magnetic resistance sensor is positioned on the magnetized area such that its magneto-sensitive surface is parallel to the plane. The magnetic resistance sensor has an output which is in a saturated state.
摘要翻译：电动机包括转子，转子具有转子磁体上的指标信号产生部分和具有磁敏表面的磁阻传感器。传感器位于电动机的定子上，面向转子的指标信号产生部分，并具有预定的间隙。传感器用于在转子旋转期间感测由指标信号产生部分产生的磁场中的指标信号。包括用于基于磁阻传感器的检测结果来检测电动机速度的速度检测电路。指标生成部形成与指标信号生成部的主磁通正交的面的磁通强度大于磁阻传感器的额定灵敏度的磁性区域。磁阻传感器位于磁化区域上，使其磁敏表面平行于平面。磁阻传感器具有处于饱和状态的输出。

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