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    A method of pwm driving a brushless motor with digitally stored voltage profiles with reduced losses
    1.
    发明公开
    A method of pwm driving a brushless motor with digitally stored voltage profiles with reduced losses 有权
    与数字存储的电压分布和降低损失的无刷电动机的PWM驱动的方法

    公开(公告)号：EP0955722A1

    公开(公告)日：1999-11-10

    申请号：EP99200465.5

    申请日：1999-02-19

    Applicant: STMicroelectronics S.r.l.

    Inventor： Galbiati, Ezio ,  Boscolo, Michele ,  Viti, Marco

    IPC: H02P7/00 ,  H02P6/08 ,  H02P6/14

    CPC classification number: H02P6/085 ,  H02P6/14

    Abstract: A method of driving a multiphase brushless motor with N windings connected in a star or in a polygonal configuration and driven according to a certain periodic voltage profile includes cyclically keeping for a certain time interval at least one of the N windings in a fixed state of low or high saturation by applying to the other phase windings instantaneous voltages according to a predefined different periodic voltage profile such that the resultant voltages on the windings are coherent with the certain periodic voltage profile. The number of intervals, in an entire electric period, in which said fixed high or low saturation state of one winding is produced, depends on the predefined driving profile and upon the number N of windings of the motor.

    Abstract translation: 驱动具有星形连接或多边形构造和驱动雅丁到一定周期性的电压分布N个绕组的多相无刷电动机的方法，包括循环地保持为一定的时间间隔的N个绕组的至少一个中的低固定状态 或高饱和度通过向其它相绕组瞬时电压gemäß预定义不同的周期电压分布的调查做了绕组产生的电压是一致的与某些周期性的电压曲线。 间隔的中到整个电动周期的数目，其中，所述固定一个绕组中产生的高或低的饱​​和状态，依赖于预定义的驾驶概况并且在电动机的绕组的数目N.

    A method of PWM driving a brushless motor with digitally stored voltage profiles with reduced losses
    4.
    发明公开
    A method of PWM driving a brushless motor with digitally stored voltage profiles with reduced losses 失效
    与数字存储的电压分布和降低损失的无刷电动机的PWM驱动的方法

    公开(公告)号：EP0955721A1

    公开(公告)日：1999-11-10

    申请号：EP98830270.9

    申请日：1998-05-05

    Applicant: STMicroelectronics S.r.l.

    Inventor： Galbiati, Ezio ,  Boscolo, Michele ,  Viti, Marco

    IPC: H02P7/00 ,  H02P6/08 ,  H02P6/14

    CPC classification number: H02P6/14 ,  H02P6/085

    Abstract: A method of driving a multiphase brushless motor with N star-connected windings wherein all the N windings are driven according to a certain predefined periodic voltage profile intended as the differential voltage between the winding's terminal and the star center, includes cyclically keeping for a certain time interval one of the N windings in a fixed state of low or high saturation by applying to the other N-1 phase windings instantaneous voltages according to a profile such that the modulated voltage of the star center subtracted or added to the low or high saturation voltage applied to the terminal of said one winding produce a resultant voltage on the winding of a value coherent with said predefined voltage profile.
    The number of intervals, in an entire electric period, in which said fixed high or low saturation state of one winding is produced, depends on the predefined driving profile and upon the number N of windings of the motor.

    Abstract translation: 驱动具有worin所有的N个绕组被驱动雅丁于预期作为绕组的端子和星形中心之间的差分电压在某一预定周期电压属性N星形连接绕组的多相无刷电动机的方法，包括循环地保持一定时间 通过向其他N-1相绕组瞬时电压雅丁到配置文件搜索在低或高饱和度的固定状态的N个绕组的间隔一个做星形中心消减的调制电压或加入到低或高饱和电压 施加到所述一个绕组上产生相干与所述预定义的电压分布的值的卷绕所得的电压的端子。 间隔的中到整个电动周期的数目，其中，所述固定一个绕组中产生的高或低的饱​​和状态，依赖于预定义的驾驶概况并且在电动机的绕组的数目N.

    Start-up procedure for brushless DC motors having position sensors with angular resolution lower than the resolution of the driving system
    8.
    发明公开
    Start-up procedure for brushless DC motors having position sensors with angular resolution lower than the resolution of the driving system 有权
    用于与位置传感器的无刷直流电动机，其具有比所述驱动系统的较低角速度启动方法

    公开(公告)号：EP1026820A1

    公开(公告)日：2000-08-09

    申请号：EP99830062.8

    申请日：1999-02-04

    Applicant: STMicroelectronics S.r.l.

    Inventor： Viti, Marco ,  Boscolo, Michele

    IPC: H02P6/22

    CPC classification number: H02P6/22

    Abstract: A start-up routine for a multiphase brushless DC motor having one or more rotor position sensors insufficient to provide for an angular resolution as high as the angular resolution of the synchronized driving system of the motor, consists in:

    a) fixing of at least an angular check zone of a certain arc length angularly corr lated to the position of said sensor or sensors;
    b) assessing or presuming a certain initial rest position of the rotor;
    c) exciting for fixed time intervals the phase windings in a sequence such to rotate the rotor toward an angular position next to the initial position, in the desired direction, while masking the signals or digital codes of the position sensor or sensors for a preestablished masking time;
    d) repeating step c) until verifying that the excited phases are those commanding advancement of the rotor toward said angular check zone, or a change of state of the signals of said position sensor or sensors, if the masking time has elapsed;
    e) associating to each code of said position sensor or sensors a new angular check zone to be reached by repeating the sequence of operations starting from step c).

    Abstract translation: 用于多阶段A的启动程序无刷具有一个或多个转子位置传感器不足以提供用于直流电动机在角分辨率高达发动机的同步驱动系统的角分辨率，besteht在：1）中的至少固定在 某弧长角度科尔迟来到所述一个或多个传感器的位置的角度检查区; B）assesing或假定的转子的一定的初始静止位置; c）中令人兴奋的固定的时间间隔在一个序列中的相绕组谋求转子朝向在角位置旋转旁边在期望的方向的初始位置，同时掩盖的信号或位置传感器的数字码或传感器，用于预先建立的掩蔽 时间; d）重复步骤c），直到验证已做了激发相位是朝向所述角检查区，或者如果掩蔽时间已经过去时，所述位置传感器或多个传感器，信号的状态的变化，转子的那些命令前进; E）关联到所述位置传感器或传感器一个新的角度检查区的每个代码，以通过重复从步骤c开始）操作的顺序到达。

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