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公开(公告)号：US20060220602A1
公开(公告)日：2006-10-05
申请号：US11284018
申请日：2005-11-21
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Lijian Wu , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Lijian Wu , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02P1/18
摘要： The methods for starting a Hall-less single-phase BLDCM having an asymmetrical air gap are proposed. The provided methods are employed to input a specific amount of current impulse and stop the current impulse at a specific time such that the rotor of the single-phase BLDCM having an asymmetrical air gap can be realized to rotate in the pre-determined direction through one of the cogging torque and the rotor inertia after that specific time so as to accomplish the normal starting of a motor without the Hall-effect sensor.
摘要翻译： 提出了启动具有不对称气隙的无霍尔单相BLDCM的方法。 所提供的方法用于输入特定量的电流脉冲并在特定时间停止电流脉冲，使得具有不对称气隙的单相BLDCM的转子可以实现为沿预定方向旋转通过一个 的齿槽转矩和转子惯性之间的差别，以便在没有霍尔效应传感器的情况下实现马达的正常启动。
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公开(公告)号：US07459878B2
公开(公告)日：2008-12-02
申请号：US11328975
申请日：2006-01-10
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02P23/00
CPC分类号： H02P6/182
摘要： The method and circuit for controlling a sensorless single-phase BLDCM having a stator with a winding are proposed. The provided controlling circuit includes a power supply circuit, an inverter coupled to the winding and the power supply circuit, a BEMF detecting circuit coupled to the winding and the inverter and measuring a BEMF of the winding, and a controller coupled to the power supply circuit, the inverter and the BEMF detecting circuit and analyzing a status of the BEMF to control the BLDCM accordingly. The provided method is based on the motor winding time-sharing theory, and the controller controls the inverter to make the winding used as a driving element with loading current when the absolute value of the BEMF is relatively large and as a sensing element when the absolute value of the BEMF is relatively small.
摘要翻译： 提出了一种用于控制具有带绕组的定子的无传感器单相BLDCM的方法和电路。 所提供的控制电路包括电源电路，耦合到绕组和电源电路的反相器，耦合到绕组和逆变器并测量绕组的BEMF的BEMF检测电路，以及耦合到电源电路的控制器 ，逆变器和BEMF检测电路，并分析BEMF的状态以相应地控制BLDCM。 所提供的方法是基于电机绕组分时理论，控制器控制逆变器使绕组用作具有负载电流的驱动元件，当BEMF的绝对值相对较大时，作为传感元件，当绝对值 BEMF的价值相对较小。
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公开(公告)号：US20060197478A1
公开(公告)日：2006-09-07
申请号：US11284167
申请日：2005-11-21
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Qiong Yuan , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Qiong Yuan , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02P7/06
摘要： The proposed method for starting a motor having a stator, a rotor, a winding and an asymmetrical air gap, comprising the steps of: (a) exciting said winding with a current impulse such that said stator generates a magnetic field and going to one of steps (b) and (d); (b) driving said rotor to rotate in a first direction if a polarity of a portion of a specific tooth of said stator close to said air-gap and a polarity of a specific magnetic pole of said rotor corresponding to said tooth are opposite; (c) stopping said current impulse at a specific moment such that said rotor is rotated in a second direction by a cogging torque and going to step (f); (d) driving said rotor to rotate in a first direction if a polarity of a portion of a specific tooth of said stator close to said air-gap and a polarity of a specific magnetic pole of said rotor corresponding to said tooth are the same; (e) stopping said current impulse at said moment such that said rotor is rotated in a second direction by an inertia; and (f) detecting a back electromotive force (BEMF) in said winding when said rotor is rotated such that said motor is controlled for commutating according to said BEMF. The provided method overcomes the drawbacks of failing to position the rotor due to the oscillation of the rotor in the prior art.
摘要翻译： 所提出的用于启动具有定子，转子，绕组和不对称气隙的电动机的方法，包括以下步骤：（a）用电流冲击激励所述绕组，使得所述定子产生磁场并进入 步骤（b）和（d）; （b）如果所述定子的特定齿的一部分的极性接近所述气隙，并且所述转子的与所述齿对应的特定磁极的极性相反，则驱动所述转子沿第一方向旋转; （c）在特定时刻停止所述电流脉冲，使得所述转子通过齿槽转矩沿第二方向旋转并转到步骤（f）; （d）如果所述定子的特定齿的一部分的极性靠近所述气隙并且所述转子的与所述齿相对应的特定磁极的极性相同，则驱动所述转子沿第一方向旋转; （e）在所述时刻停止所述电流脉冲，使得所述转子通过惯性沿第二方向旋转; 以及（f）当所述转子旋转时检测所述绕组中的反电动势（BEMF），使得所述电动机根据所述BEMF被控制换向。 所提供的方法克服了现有技术中由于转子的振荡导致转子不能定位的缺点。
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公开(公告)号：US07345440B2
公开(公告)日：2008-03-18
申请号：US11284167
申请日：2005-11-21
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Qiong Yuan , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Qiong Yuan , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02P1/00
摘要： A method for starting a motor having a stator, a rotor, a winding and an asymmetrical air gap is accomplished using several steps. The steps include: (a) providing the motor at standstill; (b) exciting the winding for a specific time period with a current impulse having a first amplitude to obtain a first specific position of the rotor with respect to the stator; (c) decreasing the first amplitude down to a second amplitude gradually by a controller to make the rotor to be positioned at a second specific position with respect to the stator after the specific time period, wherein the second amplitude is one of zero ampere and a specific value close to zero ampere, and the rotor is rotating close to the second specific position with an almost zero rotating speed when the second amplitude is reached.
摘要翻译： 用于启动具有定子，转子，绕组和不对称气隙的电动机的方法通过几个步骤完成。 步骤包括：（a）停止提供电机; （b）用具有第一幅度的电流脉冲激励所述绕组达特定时间段以获得所述转子相对于所述定子的第一特定位置; （c）通过控制器逐渐将第一振幅降低到第二幅度，使得转子在特定时间段之后相对于定子定位在第二特定位置，其中第二幅度是零安培和 特定值接近零安培，并且当达到第二幅度时，转子以几乎为零的转速旋转接近第二特定位置。
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公开(公告)号：US07242160B2
公开(公告)日：2007-07-10
申请号：US11284018
申请日：2005-11-21
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Lijian Wu , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Lijian Wu , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02K21/00
摘要： The methods for starting a Hall-less single-phase BLDCM having an asymmetrical air gap are proposed. The provided methods are employed to input a specific amount of current impulse and stop the current impulse at a specific time such that the rotor of the single-phase BLDCM having an asymmetrical air gap can be realized to rotate in the pre-determined direction through one of the cogging torque and the rotor inertia after that specific time so as to accomplish the normal starting of a motor without the Hall-effect sensor.
摘要翻译： 提出了启动具有不对称气隙的无霍尔单相BLDCM的方法。 所提供的方法用于输入特定量的电流脉冲并在特定时间停止电流脉冲，使得具有不对称气隙的单相BLDCM的转子可以实现为沿预定方向旋转通过一个 的齿槽转矩和转子惯性之间的差别，以便在没有霍尔效应传感器的情况下实现马达的正常启动。
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公开(公告)号：US20060214611A1
公开(公告)日：2006-09-28
申请号：US11328975
申请日：2006-01-10
申请人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
发明人： Weizi Wang , Zhigan Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02P7/06
CPC分类号： H02P6/182
摘要： The method and circuit for controlling a sensorless single-phase BLDCM having a stator with a winding are proposed. The provided controlling circuit includes a power supply circuit, an inverter coupled to the winding and the power supply circuit, a BEMF detecting circuit coupled to the winding and the inverter and measuring a BEMF of the winding, and a controller coupled to the power supply circuit, the inverter and the BEMF detecting circuit and analyzing a status of the BEMF to control the BLDCM accordingly. The provided method is based on the motor winding time-sharing theory, and the controller controls the inverter to make the winding used as a driving element with loading current when the absolute value of the BEMF is relatively large and as a sensing element when the absolute value of the BEMF is relatively small.
摘要翻译： 提出了一种用于控制具有带绕组的定子的无传感器单相BLDCM的方法和电路。 所提供的控制电路包括电源电路，耦合到绕组和电源电路的反相器，耦合到绕组和逆变器并测量绕组的BEMF的BEMF检测电路，以及耦合到电源电路的控制器 ，逆变器和BEMF检测电路，并分析BEMF的状态以相应地控制BLDCM。 所提供的方法是基于电机绕组分时理论，控制器控制逆变器使绕组用作具有负载电流的驱动元件，当BEMF的绝对值相对较大时，作为传感元件，当绝对值 BEMF的价值相对较小。
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公开(公告)号：US07868570B2
公开(公告)日：2011-01-11
申请号：US11950131
申请日：2007-12-04
申请人： Jian Ni , Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
发明人： Jian Ni , Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
CPC分类号： H02P6/15
摘要： A controller of a brushless DC electric machine having a rotor and at least a stator winding powered by a driving voltage is provided. The controller includes a position sensor, an advance angle control circuit, and a driving circuit. The position sensor is moved along a reverse rotating direction of the rotor by a prepositioned angle for outputting a position signal. The advance angle control circuit receives the position signal and a driving voltage reproduction signal reproduced from the driving voltage and outputs a commutation control signal lagging the position signal by a first delay time. The driving circuit receives the commutation control signal for outputting a driving signal for controlling a commutation of the brushless DC electric machine.
摘要翻译： 提供一种具有转子和至少由驱动电压驱动的定子绕组的无刷直流电机的控制器。 控制器包括位置传感器，提前角控制电路和驱动电路。 位置传感器沿转子的反向旋转方向移动一预定角度，用于输出位置信号。 提前角控制电路接收从驱动电压再现的位置信号和驱动电压再现信号，并输出滞后于位置信号第一延迟时间的换向控制信号。 驱动电路接收用于输出用于控制无刷直流电机的换向的驱动信号的换向控制信号。
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公开(公告)号：US20080292292A1
公开(公告)日：2008-11-27
申请号：US11950131
申请日：2007-12-04
申请人： Jian NI , Lijian WU , Wanbing JIN , Jianping YING , Shih-Ming Huang , Wen-Shi HUANG
发明人： Jian NI , Lijian WU , Wanbing JIN , Jianping YING , Shih-Ming Huang , Wen-Shi HUANG
IPC分类号： H02P7/285
CPC分类号： H02P6/15
摘要： A controller of a brushless DC electric machine having a rotor and at least a stator winding powered by a driving voltage is provided. The controller includes a position sensor, an advance angle control circuit, and a driving circuit. The position sensor is moved along a reverse rotating direction of the rotor by a prepositioned angle for outputting a position signal. The advance angle control circuit receives the position signal and a driving voltage reproduction signal reproduced from the driving voltage and outputs a commutation control signal lagging the position signal by a first delay time. The driving circuit receives the commutation control signal for outputting a driving signal for controlling a commutation of the brushless DC electric machine.
摘要翻译： 提供一种具有转子和至少由驱动电压驱动的定子绕组的无刷直流电机的控制器。 控制器包括位置传感器，提前角控制电路和驱动电路。 位置传感器沿转子的反向旋转方向移动一预定角度，用于输出位置信号。 提前角控制电路接收从驱动电压再现的位置信号和驱动电压再现信号，并输出滞后于位置信号第一延迟时间的换向控制信号。 驱动电路接收用于输出用于控制无刷直流电机的换向的驱动信号的换向控制信号。
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公开(公告)号：US07839045B2
公开(公告)日：2010-11-23
申请号：US11827934
申请日：2007-07-13
申请人： Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
发明人： Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02K21/12
CPC分类号： H02K29/03 , H02K1/2786
摘要： A permanent magnet motor is provided. The permanent magnet motor includes a stator having a stator shaft having an outer surface, K salient teeth formed upon the outer surface, and K winding slots formed among the K salient teeth, and a rotor having a first inner surface facing the outer surface, and P pairs of permanent magnets formed on the first inner surface, each of which has a second inner surface facing the outer surface and at least a groove formed on the second inner surface to reduce a cogging torque.
摘要翻译： 提供永磁电动机。 所述永磁电动机包括定子，所述定子具有外表面的定子轴，形成在所述外表面上的K凸齿，以及形成在所述K凸齿之间的K绕组槽，以及具有面向所述外表面的第一内表面的转子， P对永磁体，其形成在第一内表面上，每对具有面向外表面的第二内表面和至少形成在第二内表面上的凹槽以减少齿槽转矩。
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公开(公告)号：US20080157619A1
公开(公告)日：2008-07-03
申请号：US11827934
申请日：2007-07-13
申请人： Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
发明人： Lijian Wu , Wanbing Jin , Jianping Ying , Shih-Ming Huang , Wen-Shi Huang
IPC分类号： H02K21/22
CPC分类号： H02K29/03 , H02K1/2786
摘要： A permanent magnet motor is provided. The permanent magnet motor includes a stator having a stator shaft having an outer surface, K salient teeth formed upon the outer surface, and K winding slots formed among the K salient teeth, and a rotor having a first inner surface facing the outer surface, and P pairs of permanent magnets formed on the first inner surface, each of which has a second inner surface facing the outer surface and at least a groove formed on the second inner surface to reduce a cogging torque.
摘要翻译： 提供永磁电动机。 所述永磁电动机包括定子，所述定子具有外表面的定子轴，形成在所述外表面上的K凸齿，以及形成在所述K凸齿之间的K绕组槽，以及具有面向所述外表面的第一内表面的转子， P对永磁体，其形成在第一内表面上，每对具有面向外表面的第二内表面和至少形成在第二内表面上的凹槽以减少齿槽转矩。
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