Motor drive voltage-boost control
    1.
    发明授权
    Motor drive voltage-boost control 有权
    电机驱动升压控制

    公开(公告)号:US08004220B2

    公开(公告)日:2011-08-23

    申请号:US11632111

    申请日:2005-07-08

    IPC分类号: H02P6/08

    摘要: A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.

    摘要翻译: 具有转子和相绕组(a,b,c)的电动机的驱动系统包括: 驱动电路,包括与绕组a,b,c相关联的开关装置,用于改变通过绕组的电流; 转子位置检测装置,其布置成感测转子的位置; 控制装置,被布置成提供驱动信号以控制开关装置; 用于在标称电压下连接到电源的电源输入; 以及与功率输入和功率输出电通信的升压装置,并且可控制以将标称电压升高到更高的电压以施加到绕组。

    METHOD OF PROCESSING ENCODER SIGNALS
    2.
    发明申请
    METHOD OF PROCESSING ENCODER SIGNALS 有权
    加密编码器信号的方法

    公开(公告)号:US20110187355A1

    公开(公告)日:2011-08-04

    申请号:US12377777

    申请日:2007-08-17

    IPC分类号: G01B7/30

    摘要: A method of processing signals in a rotary encoder of the kind which comprises at least one annular track of encoding regions arranged as an alternating pattern of first encoding regions and second encoding regions, comprises providing a first detector at a first fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; providing a second detector at a second fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; identifying a usable pair of transitions in the first and second signals comprising a transition of the first signal from the first state to the second state followed by a transition in the second signal from the first state to the second state without in the intervening period having changed from the second state to the first state; measuring the elapsed time between the transitions of the identified usable pair, and determining the angular velocity by combining the elapsed time with the spacing between the first and second detectors.

    摘要翻译: 一种处理这种旋转编码器中的信号的方法,该旋转编码器包括被布置为第一编码区域和第二编码区域的交替图案的编码区域的至少一个环形轨道,包括在第一固定位置提供第一检测器,该第一检测器布置成 产生第一交替输出信号,因为编码区的轨道围绕其轴旋转超过检测器,所述交变信号包括与检测器相对应的第一状态与第一编码区对准的第一状态与对应于检测器的第二状态之间的一系列转变 检测器与第二编码区域对准; 在第二固定位置提供第二检测器,所述第二固定位置被布置成当所述编码区域的轨道围绕其轴旋转超过所述检测器时产生第一交替输出信号,所述交变信号包括与所述检测器相对应的第一状态之间的一系列转变 与第一编码区对准的第二状态和对应于检测器的第二状态与第二编码区对齐; 识别所述第一和第二信号中的可用转换对,包括所述第一信号从所述第一状态到所述第二状态的转变,随后在所述第二信号中从所述第一状态到所述第二状态的转变, 从第二个状态到第一个状态; 测量所识别的可用对的转变之间的经过时间,以及通过将经过的时间与第一和第二检测器之间的间隔组合来确定角速度。

    Position Sensorless Motor Control
    3.
    发明申请
    Position Sensorless Motor Control 有权
    无位置传感器电机控制

    公开(公告)号:US20110057593A1

    公开(公告)日:2011-03-10

    申请号:US12990996

    申请日:2009-05-08

    IPC分类号: H02P6/16

    摘要: A control system is provided for an AC electric motor which comprises a rotor and a stator and a plurality of phase windings connected in a star formation, each winding having one end connected to a common neutral point and another end arranged to have a terminal voltage applied to it. The control system comprises switching means arranged to control the terminal voltages applied to the windings and control means arranged to control the switching means so as to switch it between a plurality of states in each of a sequence of PWM periods. The control means is further arranged to measure the voltage at the neutral point at sample times within the PWM periods and to generate from the measured voltages an estimation of the rotational position of the rotor.

    摘要翻译: 提供了一种用于AC电动机的控制系统,该AC电动机包括转子和定子以及以星形连接的多个相绕组,每个绕组的一端连接到公共中性点,另一端被布置成施加端电压 给它 控制系统包括被设置为控制施加到绕组的端子电压的开关装置和被布置成控制开关装置的控制装置,以便在PWM周期的每个序列中的多个状态之间切换它。 控制装置进一步被布置成在PWM周期内的采样时间处测量中性点处的电压,并从测量的电压产生转子旋转位置的估计。

    Motor Drive Voltage-Boost Control
    5.
    发明申请
    Motor Drive Voltage-Boost Control 有权
    电机驱动电压升压控制

    公开(公告)号:US20080265808A1

    公开(公告)日:2008-10-30

    申请号:US11632111

    申请日:2005-07-08

    IPC分类号: H02P27/02 G05F1/30

    摘要: A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.

    摘要翻译: 具有转子和相绕组(a,b,c)的电动机的驱动系统包括: 驱动电路,包括与绕组a,b,c相关联的开关装置,用于改变通过绕组的电流; 转子位置检测装置,其布置成感测转子的位置; 控制装置,被布置成提供驱动信号以控制开关装置; 用于在标称电压下连接到电源的电源输入; 以及与功率输入和功率输出电通信的升压装置,并且可控制以将标称电压升高到更高的电压以施加到绕组。

    Motor Control with Voltage Harmonic Shaping
    6.
    发明申请
    Motor Control with Voltage Harmonic Shaping 有权
    电动机控制与电压谐波整形

    公开(公告)号:US20130193898A1

    公开(公告)日:2013-08-01

    申请号:US13641498

    申请日:2011-04-14

    IPC分类号: H02P6/00

    摘要: A control system for an electric motor comprises a current sensing means arranged to produce a current sensing output indicative of electric current in the motor, current control means arranged to receive the current sensing output and to output a voltage demand indicative of voltages to be applied to the motor, and voltage demand correction means arranged to generate a correction signal and to use the correction signal and the voltage demand to produce a corrected voltage demand.

    摘要翻译: 一种用于电动机的控制系统包括电流感测装置,其被布置成产生指示电动机中的电流的电流感测输出,电流控制装置,被布置成接收电流感测输出并输出指示施加到 所述电动机和电压需求校正装置被布置成产生校正信号并且使用所述校正信号和所述电压需求来产生校正的电压需求。

    Method of processing encoder signals
    7.
    发明授权
    Method of processing encoder signals 有权
    处理编码器信号的方法

    公开(公告)号:US08466672B2

    公开(公告)日:2013-06-18

    申请号:US12377777

    申请日:2007-08-17

    IPC分类号: G01B7/30

    摘要: A method of processing signals in a rotary encoder of the kind which comprises at least one annular track of encoding regions arranged as an alternating pattern of first encoding regions and second encoding regions. The encoder including first and second detectors, each of which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector. The detector identifying a usable pair of transitions and a rejectable pair of transitions and utilizing the pairs of transitions to produce a compensated position measurement for the rotary encoder.

    摘要翻译: 一种处理这种旋转编码器中的信号的方法,该旋转编码器包括至少一个编码区的环形轨道,该编码区被布置为第一编码区域和第二编码区域的交替图案。 所述编码器包括第一和第二检测器,每个检测器被布置成当编码区域的轨道围绕其轴旋转超过检测器时产生第一交替输出信号。 检测器识别可用的一对转换和可拒绝的一对转换并利用该转换对来产生用于旋转编码器的补偿位置测量。