公开(公告)号：US09657980B2

公开(公告)日：2017-05-23

申请号：US14783272

申请日：2013-04-11

申请人： LG ELECTRONICS INC.

发明人： Hyun Sook Song ,  Ho Hyun Son ,  Myung Keun Yoo

IPC分类号： H02P23/14 ,  F25B49/02 ,  H02P6/18 ,  F25B39/02 ,  H02P1/04

CPC分类号： F25B49/025 ,  F25B39/02 ,  F25B2600/021 ,  F25B2600/112 ,  F25B2600/23 ,  H02P1/04 ,  H02P6/18 ,  H02P23/14 ,  H02P2203/09 ,  Y02B30/741

摘要： The present invention relates to a motor driving apparatus and a refrigerator including the same. A motor driving apparatus according to an embodiment of the present invention comprises: a signal delay unit for delaying an input speed order signal; an inverter control unit for outputting an inverter switching control signal, on the basis of the speed order signal delayed by the signal delay unit; and an inverter for converting an input operation direct current power into a predetermined alternating current power, on the basis of a switching operation according to the inverter switching control signal, and driving a motor using the converted alternating current power. Therefore, it is possible to prevent starting failure and reduce noise.

公开(公告)号：US09459122B2

公开(公告)日：2016-10-04

申请号：US13980156

申请日：2012-01-16

申请人： Rolf Strothmann

发明人： Rolf Strothmann

IPC分类号： G01D5/243 ,  H02P6/18

CPC分类号： G01D5/243 ,  H02P6/186 ,  H02P2203/01 ,  H02P2203/09

摘要： A method for determining the position of the rotor of an electric machine having multiple phases in relation to the stator. The change Δİ in the time derivative İ of the current I flowing through at least one of the power inputs is determined. The change Δİ is caused by a change ΔU in the potential U on at least one of the power inputs of the electric machine. A measurement signal that is representative of a position of the rotor is determined from multiple simultaneously or successively determined changes Δİ.

摘要翻译： 一种用于确定相对于定子具有多相的电机的转子的位置的方法。 确定流过至少一个功率输入的电流I的时间导数İ中的变化Δİ。 变化Δİ由电机的至少一个电力输入端的电位U的变化ΔU引起。 代表转子位置的测量信号由多个同时或连续确定的变化Δİ确定。

公开(公告)号：US20150123591A1

公开(公告)日：2015-05-07

申请号：US14535660

申请日：2014-11-07

申请人： ROHM CO., LTD.

发明人： Shigeyuki INOUE

IPC分类号： H02P8/12

CPC分类号： H02P8/12 ,  H02P6/182 ,  H02P2203/09

摘要： A logic circuit controls a bridge circuit connected to a coil of a stepping motor in synchronization with an input pulse, so as to control electric power supplied to the coil of the stepping motor. A back electromotive force detector detects the back electromotive force VBEMF across the coil L. A load angle estimation unit estimates the load angle φ based on the back electromotive force detected in the detection period set in the high-impedance period set for the coil L. A logic circuit is configured to adjust electric power supplied to the coil such that the estimated load angle φ approaches a predetermined target angle φREF.

摘要翻译： 逻辑电路与输入脉冲同步地控制与步进电动机的线圈连接的桥式电路，以控制提供给步进电动机的线圈的电力。 反电动势检测器检测跨越线圈L的反电动势VBEMF。负载角估计单元估计负载角＆phgr; 基于在为线圈L设定的高阻抗期间设定的检测期间中检测到的反电动势。逻辑电路被配置为调整供给到线圈的电力，使得估计负载角＆phgr; 接近预定的目标角度。

公开(公告)号：US20150002064A1

公开(公告)日：2015-01-01

申请号：US14037317

申请日：2013-09-25

申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.

发明人： Joo Yul Ko ,  Tae Ho Lim

IPC分类号： H02P6/18

CPC分类号： H02P6/18 ,  H02P6/085 ,  H02P2203/09

摘要： There are provided a circuit for detecting a rotor position, and an apparatus and a method for motor driving control using the same. The circuit for detecting a rotor position includes a sampling unit sampling a plurality of phase currents flowing in a plurality of phases to provide sampled phase currents; and a comparison unit comparing the sampled phase currents with one another to determine a phase having a minimum or maximum value.

摘要翻译： 提供了一种用于检测转子位置的电路​​，以及使用该电路驱动控制的装置和方法。 用于检测转子位置的电路​​包括采样单元，对以多个相位流动的多个相电流进行采样以提供采样的相电流; 以及比较单元，将采样的相电流相互比较，以确定具有最小值或最大值的相位。

公开(公告)号：US08866449B1

公开(公告)日：2014-10-21

申请号：US13914341

申请日：2013-06-10

申请人： Hamilton Sunstrand Corporation

发明人： Gregory I. Rozman ,  Jacek F. Gieras ,  Steven J. Moss

IPC分类号： H02P9/14

CPC分类号： H02P9/302 ,  H02P6/183 ,  H02P21/24 ,  H02P2203/09

摘要： A new and useful electrical machine includes a stator including a stator winding and a primary transformer coil. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes a plurality of embedded permanent magnets. An excitation coil is wound on the rotor and is operatively connected to form a rotating transformer with the primary transformer coil. An inverter/active rectifier component is operatively connected to the stator winding and the primary transformer coil to control the stator winding based on excitation in the stator winding from the excitation coil and permanent magnets.

摘要翻译： 一种新的有用的电机包括定子，其包括定子绕组和初级变压器线圈。 转子可操作地连接以相对于定子旋转，其中转子包括多个嵌入式永磁体。 励磁线圈缠绕在转子上并且可操作地连接以形成具有初级变压器线圈的旋转变压器。 逆变器/主动整流器组件可操作地连接到定子绕组和初级变压器线圈，以基于来自励磁线圈和永磁体的定子绕组中的激励来控制定子绕组。

公开(公告)号：US08847529B2

公开(公告)日：2014-09-30

申请号：US12668078

申请日：2008-06-30

申请人： Christopher David Dixon ,  Christopher Digby Roberts

发明人： Christopher David Dixon ,  Christopher Digby Roberts

IPC分类号： H02H7/08

CPC分类号： H02P21/18 ,  H02P29/0241 ,  H02P2203/09

摘要： A control system for an electric motor comprises processing means arranged to perform a control process which includes monitoring electrical voltages applied to the motor and electrical currents in the motor, and determining from them the rotational position of the motor. The system is further arranged to monitor at least one parameter of the control process thereby to detect a stall condition of the motor.

摘要翻译： 一种用于电动机的控制系统包括处理装置，其被配置为执行控制过程，该控制过程包括监视施加到电动机的电压和电动机中的电流，以及从它们确定电动机的旋转位置。 该系统还被布置成监视控制过程的至少一个参数，从而检测电动机的失速状态。

公开(公告)号：US08274248B2

公开(公告)日：2012-09-25

申请号：US12696199

申请日：2010-01-29

申请人： Shigeru Hirata ,  Yoshifumi Shigmogaki

发明人： Shigeru Hirata ,  Yoshifumi Shigmogaki

IPC分类号： H02P6/00

CPC分类号： H02P6/06 ,  H02P6/153 ,  H02P2203/09

摘要： A rotation speed detection circuit includes an internal clock generation portion which receives an input of a period signal whose period varies in accordance with rotation speed of a motor and generates an internal clock signal having a predetermined number of pulses in one period of the period signal, and an internal clock counter portion which counts the number of pulses of the internal clock signal for a predetermined period every one period of the period signal and delivers a count value thereof as a digital data signal.

摘要翻译： 旋转速度检测电路包括：内部时钟生成部，其接收周期根据电动机的转速而变化的周期信号的输入，并在周期信号的一个周期内生成具有规定数量的脉冲的内部时钟信号; 以及内部时钟计数器部分，其在周期信号的每一个周期内对预定周期内的内部时钟信号的脉冲数进行计数，并将其计数值作为数字数据信号传送。

公开(公告)号：US20090026992A1

公开(公告)日：2009-01-29

申请号：US11913269

申请日：2006-10-30

申请人： Hiroyuki Tsugaru ,  Gen Matsushima

发明人： Hiroyuki Tsugaru ,  Gen Matsushima

IPC分类号： H02K29/06

CPC分类号： B41J13/0027 ,  H02P7/29 ,  H02P2203/09

摘要： In speed control that is performed within a single operating cycle of a printer, three-level control of ON control, OFF control, and chopper control, is performed in place of the two-level control of ON control and OFF control, to effectively suppress speed variations due to load variations within a single operating cycle, even in small printers provided with DC motors having small output torques. In a printer comprising a DC motor 7, a paper feeding unit 5 that includes a paper feeding roller that uses the DC motor as the driving source, and a printing mechanism unit 2, for printing, in use of the printing mechanism unit 2, onto paper that is advanced by a specific amount by the paper feeding unit 5, an encoder 10 for outputting pulse signals according to the rotation of the DC motor 7 is provided. The encoder 10 is provided with a pulse forming region for forming a pulsed signal, on the periphery of an encoder plate, where this pulse forming region is provided with a non-uniform spacing region in a section within a uniform spacing region.

摘要翻译： 在打印机的单个操作周期内执行的速度控制中，执行ON控制，OFF控制和斩波控制的三电平控制，代替ON控制和OFF控制的两级控制，以有效抑制 即使在具有小输出转矩的直流电动机的小型打印机中，由于单个操作周期内的负载变化也会导致速度变化。 在包括直流电动机7的打印机中，包括使用直流电动机作为驱动源的供纸辊的供纸单元5和打印机构单元2，用于在打印机构单元2的使用中打印到 提供由供纸单元5提前特定量的纸张，用于根据直流电机7的旋转输出脉冲信号的编码器10。 编码器10在编码器板的周围设置有用于形成脉冲信号的脉冲形成区域，其中该脉冲形成区域在均匀间隔区域内的截面中设置有不均匀的间隔区域。

公开(公告)号：US20080116898A1

公开(公告)日：2008-05-22

申请号：US11590487

申请日：2006-10-30

申请人： Rodney B. Washington

发明人： Rodney B. Washington

IPC分类号： G01R31/08

CPC分类号： H02P7/00 ,  H01H2300/018 ,  H02J9/061 ,  H02P2203/09

摘要： A DC motor phase detection algorithm that monitors the change in motor current to detect pulses in the current caused by the motor's commutator brushes crossing over the gap between rotor commutator segments as the motor shaft rotates. A pulse is generated each time a commutator brush breaks and then reconnects to a commutator segment. The algorithm detects and counts the pulses in order to determine the number of revolutions the shaft has rotated. The motor phase can then be used to determine the distance, rotational or linear, that the moving portion of the load attached to the motor has traveled. If the initial position of the moving portion of the device is known then the absolute position can be calculated.

摘要翻译： 一种直流电动机相位检测算法，用于监视电动机电流的变化，以检测由电动机轴转动时电动机换向器电刷所产生的脉冲在电流换向器间隙之间的间隙上的电流。 每次换向器刷断时产生脉冲，然后重新连接到换向器段。 该算法检测和计数脉冲，以确定轴旋转的转数。 然后可以使用电动机相来确定连接到电动机的负载的移动部分行进的距离，旋转或线性。 如果装置的移动部分的初始位置是已知的，则可以计算绝对位置。

公开(公告)号：US20070046249A1

公开(公告)日：2007-03-01

申请号：US11508899

申请日：2006-08-24

申请人： Yoshio Tomigashi ,  Hajime Hida

发明人： Yoshio Tomigashi ,  Hajime Hida

IPC分类号： H02P27/04

CPC分类号： H02P21/18 ,  H02P2203/05 ,  H02P2203/09 ,  H02P2203/11 ,  H02P2207/05

摘要： A motor control device includes an estimator for estimating a rotor position of a motor having a salient pole by using a value corresponding to a q-axis inductance of the motor as an operation parameter where an estimated axes for the control corresponding to d-q axes are γ-δ axes, and a controller for controlling the motor based on the estimated rotor position. The estimator generates a deviation between a d-axis and a γ-axis by performing the estimation of the rotor position based on a value between a real q-axis inductance and a real d-axis inductance of the motor adopted as the operation parameter. The controller controls the motor so that a γ-axis component of a motor current supplied to the motor is maintained to be a predetermined value of zero or close to zero regardless of a value of a δ-axis component of the motor current.

摘要翻译： 电动机控制装置包括估计器，用于通过使用与电动机的q轴电感相对应的值来估计具有突极的电动机的转子位置作为操作参数，其中对应于dq轴的控制的估计轴为伽马 以及用于基于估计的转子位置来控制电动机的控制器。 估计器通过基于作为操作参数的电动机的实际q轴电感和实际d轴电感之间的值执行转子位置的估计来产生d轴和γ轴之间的偏差。 控制器控制电动机，使得提供给电动机的电动机电流的γ轴分量保持为零或接近于零的预定值，而与电动机电流的δ轴分量的值无关。