Control circuit with dual programmable feedback loops for BLDC motors
    11.
    发明授权
    Control circuit with dual programmable feedback loops for BLDC motors 有权
    具有BLDC电机双编程反馈回路的控制电路

    公开(公告)号:US08049448B2

    公开(公告)日:2011-11-01

    申请号:US12465866

    申请日:2009-05-14

    CPC classification number: H02P6/16 H02P6/18 H02P21/0003

    Abstract: A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit comprises a speed-feedback loop and a torque-feedback loop to control the maximum speed and the maximum torque of the BLDC motor in parallel configuration. The speed-feedback loop generates a speed-control signal. The torque-feedback loop generates a torque-control signal. A PWM circuit receives the speed-control signal and the torque-control signal to generate a PWM signal. A pulse width of the PWM signal is correlated to the level of the speed-control signal and/or the level of the torque-control signal.

    Abstract translation: 本发明的BLDC(无刷直流)电动机系统包括控制电路,定序器,驱动电路和BLDC电动机。 控制电路包括速度反馈回路和扭矩反馈回路,以并联配置来控制BLDC电动机的最大转速和最大转矩。 速度反馈回路产生速度控制信号。 扭矩反馈回路产生转矩控制信号。 PWM电路接收速度控制信号和转矩控制信号以产生PWM信号。 PWM信号的脉冲宽度与速度控制信号的电平和/或转矩控制信号的电平相关。

    POWER MANAGEMENT INTERFACE
    12.
    发明申请
    POWER MANAGEMENT INTERFACE 有权
    电源管理接口

    公开(公告)号:US20100123563A1

    公开(公告)日:2010-05-20

    申请号:US12501509

    申请日:2009-07-13

    CPC classification number: G08C19/16 H02M5/2573 Y10T307/832

    Abstract: A power management interface is provided and includes a switch, a transmitting circuit, and a receiving circuit. The switch is coupled to an AC power line for controlling a power line signal to a load. The transmitting circuit generates a switching signal to control the switch and achieve a phase modulation to the power line signal in response to a transmitting-data. The receiving circuit is coupled to receive the power line signal for detecting a phase of the power line signal and generating a receiving-data to control power of the load. The receiving-data is generated in accordance with the phase detection of the power line signal and correlated to the transmitting-data.

    Abstract translation: 提供电源管理接口,包括开关,发送电路和接收电路。 该开关耦合到用于控制到负载的电力线信号的AC电力线。 发送电路产生开关信号以控制开关,并响应于发送数据实现对电力线信号的相位调制。 接收电路被耦合以接收用于检测电力线信号的相位的电力线信号,并且生成接收数据以控制负载的功率。 接收数据根据电力线信号的相位检测而生成,并与发送数据相关。

    CONTROL CIRCUIT WITH DUAL PROGRAMMABLE FEEDBACK LOOPS FOR BLDC MOTORS
    13.
    发明申请
    CONTROL CIRCUIT WITH DUAL PROGRAMMABLE FEEDBACK LOOPS FOR BLDC MOTORS 有权
    用于BLDC电机的双可编程反馈电路的控制电路

    公开(公告)号:US20090309526A1

    公开(公告)日:2009-12-17

    申请号:US12465866

    申请日:2009-05-14

    CPC classification number: H02P6/16 H02P6/18 H02P21/0003

    Abstract: A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit comprises a speed-feedback loop and a torque-feedback loop to control the maximum speed and the maximum torque of the BLDC motor in parallel configuration. The speed-feedback loop generates a speed-control signal. The torque-feedback loop generates a torque-control signal. A PWM circuit receives the speed-control signal and the torque-control signal to generate a PWM signal. A pulse width of the PWM signal is correlated to the level of the speed-control signal and/or the level of the torque-control signal.

    Abstract translation: 本发明的BLDC(无刷直流)电动机系统包括控制电路,定序器,驱动电路和BLDC电动机。 控制电路包括速度反馈回路和扭矩反馈回路,以并联配置来控制BLDC电动机的最大转速和最大转矩。 速度反馈回路产生速度控制信号。 扭矩反馈回路产生转矩控制信号。 PWM电路接收速度控制信号和转矩控制信号以产生PWM信号。 PWM信号的脉冲宽度与速度控制信号的电平和/或转矩控制信号的电平相关。

    Motor rotor and a motor having the same
    14.
    发明授权
    Motor rotor and a motor having the same 失效
    电机转子和电动机具有相同的功能

    公开(公告)号:US08384262B2

    公开(公告)日:2013-02-26

    申请号:US12818134

    申请日:2010-06-17

    CPC classification number: H02K1/2786 H02K29/03

    Abstract: A motor rotor includes an annular body and a plurality of magnetic bodies installed on an inner lateral surface of the annular body in an irregular manner, to prevent a rotating motor from generating a cogging effect, disperse the frequency of the cogging torque, and reduce the amplitude. Accordingly, noises generated while the motor is operating are reduced, the periodicity of a cogging torque is changed, and cogging torque is reduced.

    Abstract translation: 电动机转子包括环形体和以不规则方式安装在环形体的内侧表面上的多个磁体,以防止旋转电机产生齿槽效应,分散齿槽转矩的频率,并减少 振幅。 因此,电动机运转时产生的噪声减小,齿槽转矩的周期性变化,齿槽转矩降低。

    MOTOR ROTOR AND MOTOR HAVING THE MOTOR ROTOR
    15.
    发明申请
    MOTOR ROTOR AND MOTOR HAVING THE MOTOR ROTOR 审中-公开
    具有电机转子的电机转子和电动机

    公开(公告)号:US20120025655A1

    公开(公告)日:2012-02-02

    申请号:US12846097

    申请日:2010-07-29

    CPC classification number: H02K21/22 H02K1/2786 H02K29/03 H02K2201/03

    Abstract: A motor rotor includes an annular body and a magnetic body installed on an inner lateral surface of the annular body. The magnetic body has a first curved surface and a second curved surface opposing the first curved surface. The magnetic body props against the inner lateral surface of the annular body via the first curved surface. The first curved surface has a first curvature less than a second curvature of the second curved surface. Because the magnetic body of the motor rotor has an uneven thickness, and an air gap interval formed between the motor rotor and the stator also has an uneven width, forces applied to a region where the magnetic forces change directions are smooth. Therefore, the vibration of the whole motor is reduced, and the noises are suppressed effectively.

    Abstract translation: 马达转子包括环形体和安装在环形体的内侧表面上的磁体。 磁体具有与第一弯曲表面相对的第一弯曲表面和第二弯曲表面。 磁体通过第一弯曲表面抵靠环形体的内侧表面。 第一弯曲表面具有小于第二曲面的第二曲率的第一曲率。 由于电动机转子的磁体具有不均匀的厚度,并且在电动机转子和定子之间形成的气隙间隔也具有不均匀的宽度,所以施加到磁力变化方向的区域的力是平滑的。 因此,整个电动机的振动减小,噪声被有效地抑制。

    Control circuit for BLDC motors
    16.
    发明授权
    Control circuit for BLDC motors 有权
    BLDC电机控制电路

    公开(公告)号:US08102133B2

    公开(公告)日:2012-01-24

    申请号:US12488676

    申请日:2009-06-22

    Abstract: A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit determines the maximum torque and the maximum speed of the BLDC motor. The control circuit includes an over-current detection circuit to generate a reset signal in response to a switching current of the BLDC motor. The reset signal is generated when the switching current of the BLDC motor exceeds a threshold. A pulse width of the PWM signal is correlated to the level of a speed-control signal and the level of the torque-control signal. The pulse width of the PWM signal is also controlled by the reset signal generated by the over-current detection circuit.

    Abstract translation: 本发明的BLDC(无刷直流)电动机系统包括控制电路,定序器,驱动电路和BLDC电动机。 控制电路确定BLDC电机的最大转矩和最大转速。 控制电路包括过电流检测电路,以响应于BLDC电动机的开关电流产生复位信号。 当BLDC电机的开关电流超过阈值时,产生复位信号。 PWM信号的脉冲宽度与速度控制信号的电平和转矩控制信号的电平相关。 PWM信号的脉冲宽度也由过电流检测电路产生的复位信号控制。

    FLYBACK POWER CONVERTERS
    17.
    发明申请
    FLYBACK POWER CONVERTERS 有权
    飞轮功率转换器

    公开(公告)号:US20100202163A1

    公开(公告)日:2010-08-12

    申请号:US12620678

    申请日:2009-11-18

    CPC classification number: H02M3/3353

    Abstract: A dual-switch flyback power converter includes a control circuit to generate a switching signal. A high-side driving circuit includes a pulse generation circuit. The pulse generation circuit generates a pulse-on signal and a pulse-off signal to control two transistors in response to the switching signal. The two transistors further respectively provide a level-shift-on signal and a level-shift-off signal to a comparison circuit to enable/disable a high-side driving signal. Without using a charge pump circuit to power the high-side driving circuit, a floating winding of a transformer is utilized to provide a floating voltage to power the high-side driving circuit, which reduces the cost of the dual-switch flyback power converter and ensures a sufficient high-side driving capability of the high-side driving circuit.

    Abstract translation: 双开关反激式功率转换器包括产生开关信号的控制电路。 高侧驱动电路包括脉冲发生电路。 脉冲发生电路响应于开关信号产生脉冲导通信号和脉冲关闭信号来控制两个晶体管。 两个晶体管进一步分别向比较电路提供电平移位信号和电平偏移信号以使能/禁止高侧驱动信号。 不使用电荷泵电路为高侧驱动电路供电,利用变压器的浮动绕组提供浮动电压来为高侧驱动电路供电,这降低了双开关反激式功率转换器的成本和 确保高侧驱动电路的足够的高侧驱动能力。

    SENSOR FASTENING METHOD AND SENSOR FASTENING FRAME FOR USE THEREWITH
    18.
    发明申请
    SENSOR FASTENING METHOD AND SENSOR FASTENING FRAME FOR USE THEREWITH 有权
    传感器紧固方法和传感器紧固框架用于其中

    公开(公告)号:US20090309441A1

    公开(公告)日:2009-12-17

    申请号:US12358520

    申请日:2009-01-23

    CPC classification number: H02K29/08

    Abstract: A sensor fastening method and a sensor fastening frame for use therewith are provided. The sensor fastening frame is coupled to a motor stator of a brushless motor having distributed coils and extends over the distributed coils to allow the sensor fastening frame to rotate about the axle of a motor rotor, without interference with the distributed coils. At least a sensor is fastened in position to the sensor fastening frame proximate to one end of the axle of the motor stator for positioning the sensor to detect magnetic field variations of the motor rotor.

    Abstract translation: 提供传感器固定方法和与其一起使用的传感器固定框架。 传感器紧固框架连接到具有分布线圈的无刷电动机的电动机定子上并且在分布式线圈上延伸,以允许传感器紧固框架围绕电动机转子的轴线旋转,而不会干扰分配的线圈。 至少一个传感器被紧固到传感器紧固框架附近,靠近电动机定子的轴的一端,用于定位传感器以检测电动机转子的磁场变化。

    End cover and motor rotor having the end cover
    19.
    发明授权
    End cover and motor rotor having the end cover 有权
    端盖和电机转子具有端盖

    公开(公告)号:US08508091B2

    公开(公告)日:2013-08-13

    申请号:US12345792

    申请日:2008-12-30

    CPC classification number: H02K1/2773 H02K1/278

    Abstract: An end cover adapted to engage with an end surface of a spindle of a motor rotor is proposed for securely coupling to the spindle with a plurality of permanent magnets disposed around the peripheral wall of the spindle. The end cover has a first surface facing an end surface of the spindle and an second surface opposing to the first surface, which is formed with a plurality of inserting slots indentedly disposed around the rim thereof and corresponding to the permanent magnets for coupling the ends of the permanent magnets, thereby securely fastening each of the permanent magnets to the spindle of the motor rotor. Further, the present invention further provides a motor rotor having the end covers described above.

    Abstract translation: 提出了适于与电动机转子的主轴的端面接合的端盖,用于与设置在主轴的周壁周围的多个永磁体牢固地联接到主轴。 端盖具有面对主轴的端面的第一表面和与第一表面相对的第二表面,该第二表面形成有多个插入槽,该多个插入槽围绕其边缘凹槽地设置并对应于用于将 永磁体,从而将每个永磁体牢固地固定到电机转子的主轴上。 此外,本发明还提供一种具有上述端盖的马达转子。

    MOTOR ROTOR AND A MOTOR HAVING THE SAME
    20.
    发明申请
    MOTOR ROTOR AND A MOTOR HAVING THE SAME 失效
    电机转子和具有相同功能的电机

    公开(公告)号:US20110309705A1

    公开(公告)日:2011-12-22

    申请号:US12818134

    申请日:2010-06-17

    CPC classification number: H02K1/2786 H02K29/03

    Abstract: A motor rotor includes an annular body and a plurality of magnetic bodies installed on an inner lateral surface of the annular body in an irregular manner, to prevent a rotating motor from generating a cogging effect, disperse the frequency of the cogging torque, and reduce the amplitude. Accordingly, noises generated while the motor is operating are reduced, the periodicity of a cogging torque is changed, and cogging torque is reduced.

    Abstract translation: 电动机转子包括环形体和以不规则方式安装在环形体的内侧表面上的多个磁体,以防止旋转电机产生齿槽效应,分散齿槽转矩的频率,并减少 振幅。 因此,电动机运转时产生的噪声减小,齿槽转矩的周期性变化,齿槽转矩降低。

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