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    Control for commutatorless motor
    61.
    发明授权
    Control for commutatorless motor 失效
    无电机控制

    公开(公告)号：US3784888A

    公开(公告)日：1974-01-08

    申请号：US3784888D

    申请日：1972-06-26

    Applicant: ALLIS CHALMERS

    Inventor： GEIERSBACH A ,  STICH F

    IPC: H02K29/06 ,  H02P6/24 ,  H02K29/00

    CPC classification number: H02K29/06 ,  H02P6/24

    Abstract: Three stator phase windings of a commutatorless motor are energized from a battery through power transistors. A capacitive rotor position sensor coupled to the motor rotor derives three phase square wave rotor position signals displaced 120* apart at a frequency proportional to motor speed. Three sets of logic gates receive rotor position signals as inputs and control the conduction interval of the transistors. When a motor direction switch is actuated forward, first gates of the three logic sets are opened to enable the transistors during first rotor position signals displaced 120* to generate a clockwise rotating stator field, and when the direction switch is actuated to the reverse position, second gates are opened to enable the transistors during second rotor position signals displaced 180* from the first signals to thereby shift the stator field 180* and thus reverse rotor direction. Third gates of the logic sets are opened when the motor attains a predetermined speed to enable the transistors during rotor position signals shifted 60* from the first signals to thereby vary the motor torque angle. A plurality of timing pulses are generated during each rotor position signal, variable delay means generate delay pulses from the timing pulses after a selectively adjustable time delays the delay pulses open delay gates disposed between the logic gates and the power transistors, and motor speed controlling means vary the time delay between the timing and delay pulses to thereby change the power duty cycle of the power transistors and thus control motor speed and torque.

    Abstract translation: 无电机电机的三个定子相绕组通过功率晶体管从电池供电。 耦合到电动机转子的电容式转子位置传感器得到以与电动机速度成比例的频率间隔120°的三相方波转子位置信号。 三组逻辑门接收转子位置信号作为输入，并控制晶体管的导通间隔。 当电动机方向开关向前致动时，三个逻辑组的第一个门被打开，以使第一个转子位置信号处于120度的晶体管产生顺时针旋转的定子磁场，当方向开关被驱动到相反的位置时， 打开第二栅极以使第二转子位置信号中的晶体管与第一信号偏移180°，从而使定子磁场180°转动，从而使转子方向反转。 当电动机达到预定速度时，开启逻辑集合的第三个门，使转子位置信号的转子位置信号从第一个信号转移到60°，从而改变电动机的转矩角度。 在每个转子位置信号期间产生多个定时脉冲，可变延迟装置在选择性调节时间之后产生延迟脉冲，延迟设置在逻辑门和功率晶体管之间的延迟脉冲打开延迟门，以及电机速度控制装置 改变定时和延迟脉冲之间的时间延迟，从而改变功率晶体管的功率占空比，从而控制电机速度和转矩。

    Electronic control device in particular for use in a variable reluctance motor
    62.
    发明授权
    Electronic control device in particular for use in a variable reluctance motor 失效
    电子控制装置，特别适用于可变的电动机

    公开(公告)号：US3769555A

    公开(公告)日：1973-10-30

    申请号：US3769555D

    申请日：1972-02-04

    Applicant: PHILIPS CORP

    Inventor： DOLBACHIAN R ,  LEFEVRE C

    IPC: H02K29/06 ,  H02P6/14 ,  H02K29/00

    CPC classification number: H02K29/06 ,  H02P6/14

    Abstract: A control device for an electric motor with a stator having at least four groups of coils. Four switches are connected to the four coil groups so that two switches connect one terminal of a DC voltage supply to two coil groups and the other two switches connect the other terminal of the DC supply to the other two coil groups. A rotor position detector operates the first two switches in mutually exclusive time intervals at a frequency related to the rotor rotation. A pulse generator and two AND gates operate the other two switches in mutually exclusive time intervals at the frequency of the pulse generator. The frequency and the width of the pulse generator output pulses are variable.

    Abstract translation: 一种具有定子的电动机的控制装置，具有至少四组线圈。 四个开关连接到四个线圈组，使得两个开关将直流电源的一个端子连接到两个线圈组，另外两个开关将直流电源的另一个端子连接到另外两个线圈组。 转子位置检测器以与转子旋转相关的频率相互排列的时间间隔操作前两个开关。 脉冲发生器和两个与门在脉冲发生器的频率处以互斥的时间间隔操作另外两个开关。 脉冲发生器输出脉冲的频率和宽度是可变的。

    Device for producing direct voltage proportional to speed
    63.
    发明授权
    Device for producing direct voltage proportional to speed 失效
    用于生产直流电压比例的装置

    公开(公告)号：US3603869A

    公开(公告)日：1971-09-07

    申请号：US3603869D

    申请日：1970-05-15

    Applicant: SIEMENS AG

    Inventor： NEUFFER INGEMAR ,  EICHMANN DIETER ,  LANGWEILER FRANK

    IPC: H02K11/00 ,  G01P3/46 ,  H02K29/06 ,  H02K29/12 ,  H02P9/00

    CPC classification number: H02K29/12 ,  G01P3/46 ,  H02K29/06

    Abstract: A rotatable actuator is mounted on the rotor of an AC machine for rotation therewith. A pair of spaced transmitters are stationarily mounted on the stator of the AC machine in operative proximity with the actuator. Each of the transmitters produces an output signal during the time the actuator passes in close proximity therewith. A control unit couples the transmitters to the control electrodes of a plurality of electronic switches connected to the stationary windings of the machine and controls the conductive condition of the switches. Unipolar phase voltages are cyclically applied to a common output connected in common to the switches and provide a direct voltage proportional to the speed of the machine.

    Self commutated motor having a 16-18 ratio of armature poles to rotor poles
    64.
    发明授权
    Self commutated motor having a 16-18 ratio of armature poles to rotor poles 失效
    自转电机具有16-18比例的转向波轮

    公开(公告)号：US3586942A

    公开(公告)日：1971-06-22

    申请号：US3586942D

    申请日：1968-09-19

    Applicant: JAMES E MCMAHAN

    Inventor： MCMAHAN JAMES E

    IPC: H02K23/62 ,  H02K25/00 ,  H02K29/06 ,  H02K29/00

    CPC classification number: H02K29/06 ,  H02K23/62 ,  H02K25/00

    Abstract: A magnetic motor which includes a rotor, having a preselected number of polarized magnetic poles spaced about its periphery rotating with respect to an armature having a differing, preselected number of circumferentially spaced, magnetic poles, the motor utilizing at least four pole-polarity switching circuits responsive to the rotation of the rotor each of which circuits will selectively reverse the polarity of the armature poles to continue the rotation of the rotor with respect to the armature.

    Character indicator with means for monitoring the correct positioning
    65.
    发明授权
    Character indicator with means for monitoring the correct positioning 失效
    用于监视正确定位的字符指示符

    公开(公告)号：US3581183A

    公开(公告)日：1971-05-25

    申请号：US3581183D

    申请日：1970-02-02

    Applicant: AUTOPHON AG

    Inventor： PIAZZA GIAN-FRANCO ,  STREIT RUDOLF ,  ULRICH MARTIN ,  LABER WERNER ,  BURKERT ADOLF ,  TRON MANFRED ,  WALUGA WOLFGANG

    IPC: H02K29/06 ,  H02K37/16 ,  H02K37/00

    CPC classification number: H02K29/06 ,  H02K37/16

    Abstract: A character indicator system for sequentially displaying data and having means to monitor the characters indicated to thereby determine the correctness of the display. The character carriers are advanced by a step-by-step motor which advances one step for each alternation of the input energy. The monitor means, as a function of the position of the character carrier or the motor armature, affects at least one alternating current signal whose frequency lies within the order of magnitude of several times the frequency of the energy used for driving the motor. Switch means feed the alternating current signal to the motor input where it can be picked up at the other end of the input and used for monitoring purposes.

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