Drive circuit for brushless DC motors
    1.
    发明授权
    Drive circuit for brushless DC motors 失效
    无刷直流电机驱动电路

    公开(公告)号:US06384554B1

    公开(公告)日:2002-05-07

    申请号:US09021207

    申请日:1998-02-10

    IPC分类号: H02P118

    摘要: A drive circuit for brushless DC motors including a rotor and a stator with at least one stator coil includes a commutation device which supplied commutation pulses of drive current to the state coil(s). The commutation device senses the rotor position and calculates current rotor speed therefrom. The rotor speed is then used to shift the commutation circuits according to predetermined functions. The shifting of commutation currents is occasioned by shifting either or both of ignition part of a commutation pulse and the extinction part of such pulse.

    摘要翻译: 一种包括具有至少一个定子线圈的转子和定子的无刷直流电动机的驱动电路,包括向所述状态线圈提供驱动电流的换流脉冲的换向装置。 换向装置感测转子位置并计算当前的转子转速。 然后转子速度用于根据预定功能移动换向电路。 换向电流的移动是通过换向换向脉冲的点火部分和这种脉冲的消光部分之一或两者来实现的。

    Bridge circuit for driving a brushless DC motor
    3.
    发明授权
    Bridge circuit for driving a brushless DC motor 失效
    用于驱动无刷直流电动机的桥式电路

    公开(公告)号:US5600216A

    公开(公告)日:1997-02-04

    申请号:US091665

    申请日:1993-07-13

    IPC分类号: H02P6/20 H02P1/04

    CPC分类号: H02P6/20

    摘要: The invention pertains to a bridge circuit and a drive circuit for it, in particular for driving a brushless DC motor. The bridge circuit exclusively consists of n-channel field-effect transistors. An auxiliary potential generated by at least one potential sliding capacitor is provided for driving these particular field-effect transistors which are connected to the positive supply voltage. The auxiliary potential is already built up before the starting of the motor by means of special switching measures, and said auxiliary potential exists at a defined intensity during extended standstill times of the motor.

    摘要翻译: 本发明涉及用于其的桥式电路和驱动电路,特别是用于驱动无刷直流电动机。 桥电路由n沟道场效应晶体管组成。 提供由至少一个可能的滑动电容器产生的辅助电位用于驱动连接到正电源电压的这些特定的场效应晶体管。 通过特殊的开关措施,在起动电动机之前已经建立了辅助电位,并且所述辅助电位在电动机的延长停止时间期间以确定的强度存在。

    Drive circuit for brushless DC motors
    4.
    发明授权
    Drive circuit for brushless DC motors 失效
    无刷直流电机驱动电路

    公开(公告)号:US5583404A

    公开(公告)日:1996-12-10

    申请号:US956948

    申请日:1992-10-05

    摘要: A drive circuit for brushless DC motors comprising a rotor and a stator with at least one stator coil includes a commutation device which supplies commutation pulses of drive current to the stator coil(s). The commutation device senses the rotor position and calculates current rotor speed therefrom. The rotor speed is then used to shift the commutation currents according to predetermined functions. The shifting of commutation currents is occasioned by shifting either or both of the ignition part of a commutation pulse and the extinction part of such pulses.

    摘要翻译: 一种包括具有至少一个定子线圈的转子和定子的无刷直流电动机的驱动电路,包括一个向定子线圈提供驱动电流的换向脉冲的换向装置。 换向装置感测转子位置并计算当前的转子转速。 转子转速然后用于根据预定功能移动换向电流。 换向电流的移动是通过使换向脉冲的点火部分中的任一个或两者与这种脉冲的消光部分相互转换而产生的。

    Drive circuit for a brushless direct-current motor
    5.
    发明授权
    Drive circuit for a brushless direct-current motor 失效
    无刷直流电机的驱动电路

    公开(公告)号:US5343129A

    公开(公告)日:1994-08-30

    申请号:US76720

    申请日:1993-06-14

    IPC分类号: H02P1/18 H02P6/14 H02P6/20

    CPC分类号: H02P6/14 H02P2209/07

    摘要: A drive circuit for a brushless direct-current motor, particularly a fan motor, which permits a flexible control or regulation of the power delivered to the direct-current motor depending on a desired or reference value. The drive circuit consists of power output stages which are supplied via a rectifier circuit direct from the a.c. supply, while the control of the power output stages is effected by a special control circuit. This control circuit is supplied via an auxiliary supply part from the a.c. supply. The control circuit delivers ramp-shaped output pluses each driving a control pulse for the motor current which comprises within each commutation phase a pulse that can vary from a symmetrical triangular form to a trapezoidal form. The driving circuit includes a restart circuit which supplies a separate supply voltage to an intermediate drive stage in a fashion which becomes intermittent if the motor is overloaded or blocked.

    摘要翻译: 一种用于无刷直流电动机,特别是风扇电动机的驱动电路,其允许根据期望值或参考值灵活地控制或调节输送到直流电动机的功率。 驱动电路由功率输出级组成,通过整流电路直接从交流电源供电。 供电,而功率输出级的控制由专用控制电路实现。 该控制电路通过辅助供电部件从交流电源供电。 供应。 控制电路提供斜坡形输出电压,每个驱动电机电流的控制脉冲,其包括在每个换向阶段内可以从对称三角形形状变为梯形形式的脉冲。 驱动电路包括如果电动机过载或阻塞而以间歇的方式向中间驱动级提供单独的电源电压的重启电路。

    INTERNAL ROTOR MOTOR
    6.
    发明申请
    INTERNAL ROTOR MOTOR 审中-公开
    内部转子电机

    公开(公告)号:US20140062243A1

    公开(公告)日:2014-03-06

    申请号:US14118238

    申请日:2012-07-12

    IPC分类号: H02K1/22 H02K1/27

    摘要: An internal rotor motor, in particular an electronically commutated internal rotor motor, has a multi-pole stator (28) and a rotor lamination stack (37; 52, 54, 56) mounted rotatably relative to said stator; furthermore a central bore is provided in the rotor lamination stack, the rotor lamination stack comprising individual laminations (41) whose respective central openings (47) comprise radially inwardly projecting first portions or tabs (50) into which a rotor shaft (18) is press-fitted, and said central openings (47) comprise, in angular sectors between the first portions (50), second portions (51) that, in the assembled state, are spaced away from the outside of the shaft (18), at least some (axially central) ones of the individual laminations (41) of the rotor lamination stack (52) being arranged with an angular offset from one another.

    摘要翻译: 内部转子电动机,特别是电子换向内部转子电动机,具有多极定子(28)和相对于所述定子可旋转地安装的转子叠片叠层(37; 52,54,56) 此外,在转子叠片堆叠中设置有中心孔,转子叠片堆叠包括单独的叠片(41),其各自的中心开口(47)包括径向向内突出的第一部分或凸片(50),转子轴(18)被压入其中 并且所述中心开口(47)在第一部分(50)之间的角度区域中包括在组装状态下与轴(18)的外部间隔开的至少第二部分(51)的第二部分 转子叠片堆叠(52)的单个叠片(41)中的一些(轴向中心的)一个彼此成角度偏移地布置。

    Drive circuit for a brushless direct-current motor
    7.
    发明授权
    Drive circuit for a brushless direct-current motor 失效
    无刷直流电机的驱动电路

    公开(公告)号:US5589745A

    公开(公告)日:1996-12-31

    申请号:US473930

    申请日:1995-06-07

    IPC分类号: H02P1/18 H02P6/14 H02P6/20

    CPC分类号: H02P6/14 H02P2209/07

    摘要: A drive circuit for a brushless direct-current motor, particularly a fan motor, which permits a flexible control or regulation of the power delivered to the direct-current motor depending on a desired or reference value. The drive circuit consists of power output stages which are supplied via a rectifier circuit directly from the a.c. supply, while the control of the power output stages is effected by a special control circuit. This control circuit is supplied via an auxiliary supply part from the a.c. supply. The control circuit delivers ramp-shaped output pluses each driving a control pulse for the motor current which comprises within each commutation phase a pulse that can vary from a symmetrical triangular form to a trapezoidal form. The driving circuit includes a restart circuit which supplies a separate supply voltage to an intermediate drive stage in a fashion which becomes intermittent if the motor is overloaded or blocked.

    摘要翻译: 一种用于无刷直流电动机,特别是风扇电动机的驱动电路,其允许根据期望值或参考值灵活地控制或调节输送到直流电动机的功率。 驱动电路由功率输出级组成,通过整流电路直接从交流电源供电。 供电,而功率输出级的控制由专用控制电路实现。 该控制电路通过辅助供电部件从交流电源供电。 供应。 控制电路提供斜坡形输出电压,每个驱动电机电流的控制脉冲,其包括在每个换向阶段内可以从对称三角形形状变为梯形形式的脉冲。 驱动电路包括如果电动机过载或阻塞而以间歇的方式向中间驱动级提供单独的电源电压的重启电路。

    Drive circuit for a brushless direct-current motor
    8.
    发明授权
    Drive circuit for a brushless direct-current motor 失效
    无刷直流电机的驱动电路

    公开(公告)号:US5598073A

    公开(公告)日:1997-01-28

    申请号:US292693

    申请日:1994-08-18

    IPC分类号: H02P1/18 H02P6/14 H02P6/20

    CPC分类号: H02P6/14 H02P2209/07

    摘要: A drive circuit for a brushless direct-current motor, particularly a fan motor, which permits a flexible control or regulation of the power delivered to the direct-current motor depending on a desired or reference value. The drive circuit consists of power output stages which are supplied via a rectifier circuit directly from the a.c. supply, while the control of the power output stages is effected by a special control circuit. This control circuit is supplied via an auxiliary supply part from the a.c. supply. The control circuit delivers ramp-shaped output pluses each driving a control pulse for the motor current which comprises within each commutation phase a pulse that can vary from a symmetrical triangular form to a trapezoidal form. The driving circuit includes a restart circuit which supplies a separate supply voltage to an intermediate drive stage in a fashion which becomes intermittent if the motor is overloaded or blocked.

    摘要翻译: 一种用于无刷直流电动机,特别是风扇电动机的驱动电路,其允许根据期望值或参考值灵活地控制或调节输送到直流电动机的功率。 驱动电路由功率输出级组成,通过整流电路直接从交流电源供电。 供电,而功率输出级的控制由专用控制电路实现。 该控制电路通过辅助供电部件从交流电源供电。 供应。 控制电路提供斜坡形输出电压,每个驱动电机电流的控制脉冲,其包括在每个换向阶段内可以从对称三角形形状变为梯形形式的脉冲。 驱动电路包括如果电动机过载或阻塞而以间歇的方式向中间驱动级提供单独的电源电压的重启电路。

    Drive circuit for a brushless direct-current motor
    9.
    发明授权
    Drive circuit for a brushless direct-current motor 失效
    无刷直流电机的驱动电路

    公开(公告)号:US5220258A

    公开(公告)日:1993-06-15

    申请号:US932737

    申请日:1992-08-25

    IPC分类号: H02P6/14

    CPC分类号: H02P6/14 H02P2209/07

    摘要: A drive circuit for a brushless direct-current motor, particularly a fan motor, which permits a flexible control or regulation of the power delivered to the direct-current motor depending on a desired or reference value. The drive circuit consists of power output stages which are supplied via a rectifier circuit direct from the a.c. supply, while the control of the power output stages is effected by a special control circuit. This control circuit is supplied via an auxiliary supply part from the a.c. supply. The control circuit delivers ramp-shaped output pluses each driving a control pulse for the motor current which comprises within each commutation phase a pulse that can vary from a symmetrical triangular form to a trapezoidal form. The driving circuit includes a restart circuit which supplies a separate supply voltage to an intermediate drive stage in a fashion which becomes intermittent if the motor is overloaded or blocked.

    摘要翻译: 一种用于无刷直流电动机,特别是风扇电动机的驱动电路,其允许根据期望值或参考值灵活地控制或调节输送到直流电动机的功率。 驱动电路由功率输出级组成,通过整流电路直接从交流电源供电。 供电,而功率输出级的控制由专用控制电路实现。 该控制电路通过辅助供电部件从交流电源供电。 供应。 控制电路提供斜坡形输出电压,每个驱动电机电流的控制脉冲,其包括在每个换向阶段内可以从对称三角形形状变为梯形形式的脉冲。 驱动电路包括如果电动机过载或阻塞而以间歇的方式向中间驱动级提供单独的电源电压的重启电路。