公开(公告)号：US07332885B2

公开(公告)日：2008-02-19

申请号：US11422668

申请日：2006-06-07

申请人： Harold R. Schnetzka ,  Ivan Jadric

发明人： Harold R. Schnetzka ,  Ivan Jadric

IPC分类号： H01R39/46 ,  H02K13/00 ,  H02P25/12

CPC分类号： H02J9/062 ,  H02M5/458

摘要： A method of providing ride-through capability in a chiller/refrigeration system employs a variable speed drive with an active converter stage, a DC link stage and an inverter stage for providing variable frequency and voltage to power at least one motor. An induction motor is coupled to the output of the inverter stage for driving a compressor in the chiller/refrigeration system. The ride-through method comprises operating the active converter to regulate the DC link voltage of the DC link stage to a predetermined voltage level until the current through the active converter equals a predetermined current limit, then transferring regulation of the DC link to the inverter upon reaching the current limit of the converter. The compressor is unloaded, and the power flow through the inverter is reversed to maintain the voltage level of the DC link stage. Pre-rotation vanes, slide valve, or check valve are used to unload the compressor.

摘要翻译： 在冷冻机/制冷系统中提供穿越能力的方法采用具有有源转换器级，DC链路级和逆变器级的变速驱动器，用于提供可变频率和电压以对至少一个电动机供电。 感应电动机与变频器级的输出端连接，用于驱动冷冻机/制冷系统中的压缩机。 该直通方法包括操作有源转换器以将DC链路级的DC链路电压调节到预定的电压电平，直到通过有源转换器的电流等于预定的电流限制，然后将DC链路的调节转移到逆变器上 达到转换器的电流极限。 压缩机卸载，逆变器的功率流反转，以保持直流母线的电压电平。 预旋转叶片，滑阀或止回阀用于卸载压缩机。

公开(公告)号：US07309969B2

公开(公告)日：2007-12-18

申请号：US11145052

申请日：2005-06-03

申请人： Fred A. Brown

发明人： Fred A. Brown

IPC分类号： H02P25/12

CPC分类号： H02P6/22

摘要： An apparatus and method of starting an electric motor (having a rotor that rotates in a given direction during steady state operation from the at rest position) generates a preliminary signal that causes the rotor to rotate in an opposite direction to that of the given direction. The method and apparatus also begin rotation of the rotor in the given direction after the rotor rotates in the opposite direction.

摘要翻译： 起动电动机的装置和方法（具有从静止位置在稳态运行期间沿给定方向旋转的转子）产生使转子沿与给定方向相反的方向旋转的初步信号。 在转子沿相反方向旋转之后，该方法和装置也开始沿给定方向旋转转子。

公开(公告)号：US20070159123A1

公开(公告)日：2007-07-12

申请号：US11482596

申请日：2006-07-07

申请人： Mark Collins

发明人： Mark Collins

IPC分类号： H02P25/12

CPC分类号： H02P6/16 ,  H02P6/17

摘要： System, method, and apparatus for commutating and controlling a multi-phase motor using one output rotor sensor and circuitry that measures time between rotor pole-to-pole transitions is disclosed. The exemplary system, method, and apparatus may utilize the polarity of the single-output rotor sensor and the measured time between the polarity transitions detected by the single-output rotor sensor.

摘要翻译： 公开了一种用于使用一个输出转子传感器进行换向和控制多相电动机的系统，方法和装置，以及测量转子极 - 极转换之间的时间的电路。 示例性系统，方法和装置可以利用单输出转子传感器的极性和由单输出转子传感器检测的极性转变之间的测量时间。

公开(公告)号：US07233121B2

公开(公告)日：2007-06-19

申请号：US11270494

申请日：2005-11-10

申请人： Chia-Feng Wu ,  Yueh-Lung Huang ,  Ming-Shi Tsai ,  Wen-Shi Huang

发明人： Chia-Feng Wu ,  Yueh-Lung Huang ,  Ming-Shi Tsai ,  Wen-Shi Huang

IPC分类号： H02P25/12

CPC分类号： H02P6/15

摘要： A fan speed control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a phase compensation unit. The PWM signal generating circuit generates a PWM control signal with a sequence of alternating on-time and off-time, and the driving circuit outputs a driving signal according to the PWM control signal to a fan motor. The phase compensation unit is connected to the fan motor for delaying or advancing the PWM control signal by a phase angle to synchronize the acting period of the back electromotive force formed by the magnetic flux variation with the off-time of the PWM control signal. The present invention further provides a bi-power motor driving system including a motor rotating by receiving a first power from a first power generator, and a driving circuit for driving the motor according to a second power from a second power generator.

摘要翻译： 风扇速度控制电路包括脉宽调制（PWM）信号发生电路，驱动电路和相位补偿单元。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的PWM控制信号，并且驱动电路根据PWM控制信号向风扇电动机输出驱动信号。 相位补偿单元连接到风扇电动机，用于使PWM控制信号延迟或前进相位角，以使由磁通量变化形成的反电动势的动作周期与PWM控制信号的关闭时间同步。 本发明还提供一种双功率电动机驱动系统，其包括通过从第一发电机接收第一功率而旋转的电动机和用于根据来自第二发电机的第二功率驱动电动机的驱动电路。

公开(公告)号：US20070040525A1

公开(公告)日：2007-02-22

申请号：US11496721

申请日：2006-07-31

申请人： Fred Brown

发明人： Fred Brown

IPC分类号： H02P25/12

CPC分类号： H02K11/0094 ,  H02K11/33 ,  H02K29/00 ,  H02P6/30

摘要： An apparatus and a method of manufacture of a DC electric motor operable over a range of voltage by virtue of a DC-DC regulator having an inductance provided by one or more windings on the stator of the motor. A conductor is wound about an interpole of the stator and coupled, as an inductance, to a voltage regulator circuit, allowing operation of the DC motor over a substantial range of input voltage.

摘要翻译： 一种直流电动马达的制造装置和方法，该直流电动马达借助于具有由马达的定子上的一个或多个绕组提供的电感的DC-DC调节器，在一定电压范围内工作。 导体围绕定子的间极缠绕，并作为电感耦合到电压调节器电路，允许DC电机在相当大的输入电压范围内操作。

公开(公告)号：US20070035264A1

公开(公告)日：2007-02-15

申请号：US10549989

申请日：2004-03-19

申请人： Bruce Gunton

发明人： Bruce Gunton

IPC分类号： H02P25/12

CPC分类号： G01P3/48 ,  E05F15/41 ,  H02H7/0851 ,  H02P7/2805

摘要： Current through a motor is sensed to create a voltage which is amplified. The amplifier is followed by a high pass filter and a low pass filter. This recovers commutator pulses from the motor current, rejecting mains ripple and higher frequency noise. Commutator pulses are counted. Other arrangements could be used for injecting pulses into the motor supply, for counting at a remote position. Various techniques are described for controlling the motor in accordance with the result of counting,

摘要翻译： 感测通过电动机的电流以产生被放大的电压。 放大器之后是高通滤波器和低通滤波器。 这将从电机电流恢复换向器脉冲，抑制电源纹波和较高频率噪声。 对换向器脉冲进行计数。 可以使用其他布置来将脉冲注入到电动机供应中，以在远程位置进行计数。 描述了根据计数结果来控制电动机的各种技术，

公开(公告)号：US20060214616A1

公开(公告)日：2006-09-28

申请号：US11370851

申请日：2006-03-09

申请人： Po-Hui Shen ,  Cheng-Chieh Liu ,  Ching-Sen Hsieh ,  Yueh-Lung Huang

发明人： Po-Hui Shen ,  Cheng-Chieh Liu ,  Ching-Sen Hsieh ,  Yueh-Lung Huang

IPC分类号： H02P25/12

CPC分类号： G06F1/206 ,  H05K7/20209

摘要： A heat dissipation device comprises a fan motor, a drive circuit, and a reset current reduction circuit. When the fan motor is locked, an input terminal of the reset current reduction circuit receives an alarm signal, and an output terminal thereof outputs a voltage signal, which is larger than a reference voltage generated as the fan motor is at a low rotation rate, so as to decrease a reset current of the fan motor.

摘要翻译： 散热装置包括风扇电动机，驱动电路和复位电流降低电路。 当风扇电动机被锁定时，复位电流降低电路的输入端接收报警信号，其输出端输出大于风扇电动机处于低转速时产生的参考电压的电压信号， 从而降低风扇马达的复位电流。

公开(公告)号：US20060138986A1

公开(公告)日：2006-06-29

申请号：US11240365

申请日：2005-10-03

申请人： Pyeong Ki Park ,  Koji Hamaoka ,  Han Joo Yoo ,  Jeong Ho Seo ,  Hun Yub Bae ,  Yun Jeong Kim ,  Kwang Kyo Oh

发明人： Pyeong Ki Park ,  Koji Hamaoka ,  Han Joo Yoo ,  Jeong Ho Seo ,  Hun Yub Bae ,  Yun Jeong Kim ,  Kwang Kyo Oh

IPC分类号： H02P25/12

CPC分类号： H02P6/18 ,  H02P25/024

摘要： A BLDC motor phase commutation method is provided, which can correctly detect phase commutation timing and position detection timing of a BLDC motor in a compressor to stabilize rotation and RPM of the compressor, thereby minimizing noise and vibration. When the BLDC motor rotates through a mechanical angle corresponding to one period, the BLDC motor operates according to a first scheme in which operation of the BLDC motor in the first phase commutation section of a period is performed in the same manner as in the last phase commutation section of a period immediately prior to the period. After the BLDC motor switches to sensorless mode, the BLDC motor operates according to a third scheme in which the first phase commutation section of a period has a time interval equal to the average of time intervals of first phase commutation sections of periods prior to the period.

摘要翻译： 提供一种BLDC电动机相位换向方法，可以正确地检测压缩机中BLDC电动机的相位换向定时和位置检测定时，以稳定压缩机的转速和转速，从而最大限度地降低噪音和振动。 当BLDC电动机以对应于一个周期的机械角度旋转时，BLDC电动机根据第一方案操作，其中以与最后阶段相同的方式执行周期的第一相位换向部分中的BLDC电动机的操作 在该期间之前的期间的换向部分。 在BLDC电动机切换到无传感器模式之后，BLDC电动机根据第三方案操作，其中，周期的第一相位换向部分的时间间隔等于期间之前的周期的第一相位换向部分的时间间隔的平均值 。

公开(公告)号：US07042182B2

公开(公告)日：2006-05-09

申请号：US10722835

申请日：2003-11-26

申请人： Alexander Hahn ,  Hermann Rappenecker ,  Harald Schmid

发明人： Alexander Hahn ,  Hermann Rappenecker ,  Harald Schmid

IPC分类号： H01R39/46 ,  H02K13/00 ,  H02P25/12

CPC分类号： H02P6/14

摘要： An electronically commutated motor (10) is adapted to be powered directly by an AC voltage (UAC) source, and comprises a permanent-magnet rotor (18), a stator having at least one winding phase (L1, L2, . . . , Ln), a rectifier (38) which generates, from the AC voltage (UAC), a pulsating DC voltage (UB) between a positive lead (30) and a negative lead (32) of a DC link (15). Also present is a bridge circuit (28A, 28B, 28C), connected to that DC link (15) and provided to supply current to the at least one winding phase (L1, L2, . . . , Ln), which comprises a switching element (50) controllable with a control voltage (UST) that is lower than the pulsating DC voltage (UB) to be switched. An auxiliary circuit (34, 34′) generates, from the pulsating DC voltage (UB) at the DC link and from the AC voltage (UAC), a control voltage (UST) for driving the switching element (50) that is lower than the pulsating DC voltage by an amount equal to a predetermined value (UΔ). A preferred filter (140) for connection to an AC power grid is described. A preferred embodiment of the circuit includes a bridge circuit having a p-channel MOSFET (50) at the positive lead (30) and an n-channel MOSFET (52) at the negative lead (32) of the DC link (15).

摘要翻译： 电子换向马达（10）适于由AC电压（U AC AC）源直接供电，并且包括永磁转子（18），具有至少一个绕组相位的定子（18） L 1，L 2，...，Ln），整流器（38），其从交流电压（U AC AC）产生脉动直流电压（U B B ）在直流母线（15）的正极引线（30）和负极引线（32）之间。 还存在连接到该直流母线（15）并被提供以向至少一个绕组相（L 1，L 2，...，Ln）提供电流的桥式电路（28A，28B，28​​C） ，其包括可被控制电压（U SUB ST）控制的开关元件，所述控制电压低于要切换的脉动DC电压（U B B）。 辅助电路（34,34'）从DC链路处的脉动DC电压（U SUB B）和AC电压（U SUB AC）产生一个控制 用于将低于脉动直流电压的开关元件（50）驱动等于预定值（U> Delta）的量的电压（U ST ST）。 描述了用于连接到AC电网的优选滤波器（140）。 电路的优选实施例包括桥接电路，其在正极引线（30）处具有p沟道MOSFET（50），在DC链路（15）的负引线（32）处具有n沟道MOSFET（52）。

公开(公告)号：US4323831A

公开(公告)日：1982-04-06

申请号：US77654

申请日：1979-09-21

申请人： Peter Bradler

发明人： Peter Bradler

IPC分类号： H02P25/12 ,  H02K23/64 ,  H02P7/36

CPC分类号： H02P25/12

摘要： A commutator motor can be set to different speeds by changing the external circuit connections between the single phase AC supply line and the stator field winding. The field winding is distributed in slots over at least part of the circumference of the stator bore and the field winding connection is switched, when going from a lower to a higher speed, in such a way that the axis of the stator field is rotated in the direction of rotation of the motor. For improved performance, the number of excitation turns may also be changed, simultaneously with the rotation of the field axis. The motor is particularly useful for automatic washing machine drives having a universal motor.

摘要翻译： 通过改变单相交流电源线和定子励磁绕组之间的外部电路连接，可以将换向器电机设定为不同的速度。 励磁绕组在定子孔的圆周的至少一部分上分布在槽中，并且当从下到高的速度转动时，励磁绕组连接被切换成定子磁场的轴线旋转 电机的旋转方向。 为了提高性能，与励磁轴的旋转同时也可以改变激励匝数。 马达对于具有通用马达的自动洗衣机驱动器特别有用。