BLDC motor system including parameter detecting circuit and operating method thereof

    公开(公告)号:US09602032B2

    公开(公告)日:2017-03-21

    申请号:US14862139

    申请日:2015-09-22

    CPC classification number: H02P6/182

    Abstract: Provided is a BrushLess Direct Current (BLDC) motor system including a motor driving circuit configured to control a pulse-width-modulation (PWM) inverter in a first operation mode or a second operation mode according to a control signal, and output a switching signal according to each operation mode, the PWM inverter configured to receive the switching signal to output first three-phase voltages having a first frequency in the first operation mode, and output second three-phase voltages having a second frequency in the second operation mode, a sensorless BLDC motor configured not to operate in the first operation mode by operating based on three-phase voltages having a frequency in a different band from the first frequency, and operate in the second mode by operating based on three-phase voltages having a frequency in an identical band to the second frequency, and a parameter detecting circuit configured to calculate parameter information on the sensorless BLDC motor in the first operation mode by using sensing voltages sensed in the PWM inverter.

    MOTOR DRIVING MODULE AND BRUSHLESS DC MOTOR SYSTEM
    3.
    发明申请
    MOTOR DRIVING MODULE AND BRUSHLESS DC MOTOR SYSTEM 有权
    电机驱动模块和无刷直流电机系统

    公开(公告)号:US20140159632A1

    公开(公告)日:2014-06-12

    申请号:US13910201

    申请日:2013-06-05

    CPC classification number: H02P7/00 H02P6/18 H02P6/182 H02P6/188

    Abstract: A motor driving module is provided which includes a motor driving unit configured to control a PWM inverter on the basis of positional information and a control signal; a PWM inverter configured to output three-phase voltages on the basis of DC power according to control of the motor driving unit; a phase voltage estimating unit configured to output three-phase estimated voltages on the basis of the positional information, the DC power, and a voltage modulation index; and a position detecting unit configured to output the positional information on the basis of the three-phase estimated voltages, wherein the positional information is on an external motor that operates on the basis of the three-phase voltages.

    Abstract translation: 提供一种马达驱动模块,其包括:马达驱动单元,其被配置为基于位置信息和控制信号控制PWM逆变器; PWM逆变器,被配置为根据所述电动机驱动单元的控制,基于直流电力输出三相电压; 相位电压估计单元,被配置为基于位置信息,DC电力和电压调制指数输出三相估计电压; 以及位置检测单元,其被配置为基于三相估计电压输出位置信息,其中位置信息在基于三相电压工作的外部电动机上。

    Motor driving module and brushless DC motor system
    4.
    发明授权
    Motor driving module and brushless DC motor system 有权
    电机驱动模块和无刷直流电机系统

    公开(公告)号:US09490735B2

    公开(公告)日:2016-11-08

    申请号:US13910201

    申请日:2013-06-05

    CPC classification number: H02P7/00 H02P6/18 H02P6/182 H02P6/188

    Abstract: A motor driving module is provided which includes a motor driving unit configured to control a PWM inverter on the basis of positional information and a control signal; a PWM inverter configured to output three-phase voltages on the basis of DC power according to control of the motor driving unit; a phase voltage estimating unit configured to output three-phase estimated voltages on the basis of the positional information, the DC power, and a voltage modulation index; and a position detecting unit configured to output the positional information on the basis of the three-phase estimated voltages, wherein the positional information is on an external motor that operates on the basis of the three-phase voltages.

    Abstract translation: 提供一种马达驱动模块,其包括:马达驱动单元,其被配置为基于位置信息和控制信号控制PWM逆变器; PWM逆变器,被配置为根据所述电动机驱动单元的控制,基于直流电力输出三相电压; 相位电压估计单元,被配置为基于位置信息,DC电力和电压调制指数输出三相估计电压; 以及位置检测单元,其被配置为基于三相估计电压输出位置信息,其中位置信息在基于三相电压工作的外部电动机上。

    Position signal compensation unit of motor, and motor including the same
    5.
    发明授权
    Position signal compensation unit of motor, and motor including the same 有权
    电机的位置信号补偿单元和包括电机的电机

    公开(公告)号:US09219437B2

    公开(公告)日:2015-12-22

    申请号:US14148142

    申请日:2014-01-06

    CPC classification number: H02P6/16

    Abstract: Provided is a motor including a motor driving unit outputting a plurality of switching signals and any one of estimated three-phase voltages, in response to a control signal and a compensated position signal; a pulse width modulation (PWM) inverter outputting three-phase voltages and any one of estimated three-phase currents corresponding to the one estimated phase voltage, in response to the plurality switching signals; a motor unit operating based on the three-phase voltages and outputting a position signal according to the operation; and a position signal compensation unit receiving the position signal, the estimated phase voltage and the estimated phase current, detecting a phase difference between the estimated phase voltage and the estimated phase current and compensating for the position signal in response to the detected phase difference.

    Abstract translation: 提供一种电动机,其包括电动机驱动单元,其响应于控制信号和补偿位置信号而输出多个开关信号和估计的三相电压中的任一个; 响应于所述多个开关信号,输出三相电压和对应于所述一个估计相电压的估计三相电流中的任一个的脉宽调制(PWM)变换器; 基于三相电压工作的电动机单元,并根据操作输出位置信号; 以及位置信号补偿单元,接收位置信号,估计相电压和估计相电流,检测估计相电压和估计相电流之间的相位差,并响应于检测到的相位差补偿位置信号。

    MOTOR DRIVING MODULE, OPERATING METHOD FOR THE SAME, AND BRUSHLESS DC MOTOR SYSTEM
    6.
    发明申请
    MOTOR DRIVING MODULE, OPERATING METHOD FOR THE SAME, AND BRUSHLESS DC MOTOR SYSTEM 有权
    电机驱动模块,其操作方法和无刷直流电机系统

    公开(公告)号:US20140159625A1

    公开(公告)日:2014-06-12

    申请号:US13959647

    申请日:2013-08-05

    CPC classification number: H02P6/142 H02P6/14 H02P6/15 H02P6/16

    Abstract: The inventive concept provides a motor driving module, a operating method for the same, and a Brush less Direct Current (BLDC) motor system. The motor driving module is provided which comprises a motor driving unit configured to output a plurality of switching signals based on a plurality of position signals and a control signal; and a Pulse Width Modulation (PWM) inverter configured to output 3-phase voltages based on the plurality of switching signals outputted from the motor driving unit, wherein the motor driving unit comprises; a correction circuit configured to detect an error of the plurality of position signals to output a compensation signal based on the detecting result; and a control circuit configured to output the plurality of switching signals based on the compensation signal and the control signal, wherein the plurality of position signals indicate a position of a rotor in an external motor.

    Abstract translation: 本发明的概念提供了一种电动机驱动模块,一种其操作方法和一种无刷直流(BLDC)电动机系统。 提供电动机驱动模块,其包括:电动机驱动单元,被配置为基于多个位置信号和控制信号输出多个开关信号; 以及脉冲宽度调制(PWM)逆变器,被配置为基于从所述电动机驱动单元输出的多个开关信号输出3相电压,其中所述电动机驱动单元包括: 校正电路,被配置为基于所述检测结果来检测所述多个位置信号的误差以输出补偿信号; 以及控制电路,被配置为基于所述补偿信号和所述控制信号输出所述多个切换信号,其中所述多个位置信号指示外部电动机中的转子的位置。

    ESD protection diode and electronic device including the same

    公开(公告)号:US10475782B2

    公开(公告)日:2019-11-12

    申请号:US15713121

    申请日:2017-09-22

    Abstract: Provided are an ESD protection diode and an electronic device including the same. An ESD protection diode and an electronic device including the same according to an embodiment of the inventive concept include first to fifth wells. The first well is connected to a first voltage terminal. The second well is connected to a second voltage terminal. The third well is connected to the input/output terminal. The fourth well is disposed between the first well and the third well, and the fifth well is disposed between the second well and the third well. The first to third wells are N-type wells, and the fourth and fifth wells are P-type wells. The first well includes a first N+ diffusion region and the second well includes a second N+ diffusion region. The fourth well includes a first P+ diffusion region and the fifth well includes a second P+ diffusion region. According to an embodiment of the inventive concept, an internal circuit is protected fro an ESD pulse applied to a plurality of terminals and holding voltage is increased.

    Motor driving module, operating method for the same, and brushless DC motor system
    9.
    发明授权
    Motor driving module, operating method for the same, and brushless DC motor system 有权
    电机驱动模块,操作方法相同,无刷直流电机系统

    公开(公告)号:US09106166B2

    公开(公告)日:2015-08-11

    申请号:US13959647

    申请日:2013-08-05

    CPC classification number: H02P6/142 H02P6/14 H02P6/15 H02P6/16

    Abstract: The inventive concept provides a motor driving module, a operating method for the same, and a Brush less Direct Current (BLDC) motor system. The motor driving module is provided which comprises a motor driving unit configured to output a plurality of switching signals based on a plurality of position signals and a control signal; and a Pulse Width Modulation (PWM) inverter configured to output 3-phase voltages based on the plurality of switching signals outputted from the motor driving unit, wherein the motor driving unit comprises; a correction circuit configured to detect an error of the plurality of position signals to output a compensation signal based on the detecting result; and a control circuit configured to output the plurality of switching signals based on the compensation signal and the control signal, wherein the plurality of position signals indicate a position of a rotor in an external motor.

    Abstract translation: 本发明的概念提供了一种电动机驱动模块,一种其操作方法和一种无刷直流(BLDC)电动机系统。 提供电动机驱动模块,其包括:电动机驱动单元,被配置为基于多个位置信号和控制信号输出多个开关信号; 以及脉冲宽度调制(PWM)逆变器,被配置为基于从所述电动机驱动单元输出的多个开关信号输出3相电压,其中所述电动机驱动单元包括: 校正电路,被配置为基于所述检测结果来检测所述多个位置信号的误差以输出补偿信号; 以及控制电路,被配置为基于所述补偿信号和所述控制信号输出所述多个切换信号,其中所述多个位置信号指示外部电动机中的转子的位置。

    Apparatus for driving brushless DC motor
    10.
    发明授权
    Apparatus for driving brushless DC motor 有权
    无刷直流电机驱动装置

    公开(公告)号:US08796979B2

    公开(公告)日:2014-08-05

    申请号:US13672764

    申请日:2012-11-09

    Inventor: Jimin Oh

    CPC classification number: H02P6/00 H02P6/08 H02P6/16 H02P6/17

    Abstract: Disclosed is an apparatus for driving a BLDC motor, the apparatus including: a BLDC motor having a single sensing coil therein; a position/speed calculation unit for calculating a current position and a current speed of a rotor by using voltages at both ends of the sensing coil; a control unit for comparing the current speed of the rotor calculated by the position/speed calculation unit with a command speed and then outputting a control signal through a Proportional Integral (PI) control; a motor driving unit for generating a PWM signal based on the current position of the rotor calculated by the position/speed calculation unit and the control signal output by the control unit; and a power device unit for controlling the BLDC motor according to the PWM signal generated by the motor driving unit.

    Abstract translation: 公开了一种用于驱动BLDC电动机的装置,该装置包括:BLDC电动机,其中具有单个感测线圈; 位置/速度计算单元,用于通过使用感测线圈两端的电压来计算转子的当前位置和当前速度; 控制单元,用于将由位置/速度计算单元计算的转子的当前速度与指令速度进行比较,然后通过比例积分(PI)控制输出控制信号; 电动机驱动单元,用于基于由位置/速度计算单元计算的转子的当前位置和由控制单元输出的控制信号产生PWM信号; 以及用于根据由马达驱动单元产生的PWM信号来控制BLDC马达的功率器件单元。

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