公开(公告)号：US09124205B2

公开(公告)日：2015-09-01

申请号：US13746855

申请日：2013-01-22

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Soo Woong Lee

IPC: H02P6/14 ,  H02P6/18 ,  H02P6/16 ,  H03K17/082 ,  H03K17/16

CPC classification number: H02P6/182 ,  H02P6/17 ,  H03K17/0822 ,  H03K17/167

Abstract: There is provided an apparatus for generating a motor driving control signal, the apparatus including: an oscillating unit generating an oscillating signal having a preset duty ratio; a selecting unit including a first switch switching a first path connected between the oscillating unit and an output terminal and a second switch complementarily operated with respect to the first switch and switching a second path connected to the first path in parallel; and a duty adjusting unit installed on the second path between the second switch and the output terminal, adjusting a duty ratio of the oscillating signal according to a rotation speed signal of a motor, and outputting the signal having the adjusted duty ratio as a driving control signal through the output terminal.

Abstract translation: 提供了一种用于产生电机驱动控制信号的装置，该装置包括：产生具有预设占空比的振荡信号的振荡单元; 选择单元，其包括切换连接在所述振荡单元和输出端子之间的第一路径的第一开关和相对于所述第一开关互补操作的第二开关，并且并联连接到所述第一路径的第二路径切换; 以及负载调节单元，安装在第二开关和输出端子之间的第二路径上，根据电动机的转速信号调整振荡信号的占空比，并输出具有调整占空比的信号作为驱动控制 信号通过输出端子。

公开(公告)号：US09112439B2

公开(公告)日：2015-08-18

申请号：US13883355

申请日：2011-11-09

Applicant: Lars Larsson ,  Bernhard Dwersteg

Inventor： Lars Larsson ,  Bernhard Dwersteg

IPC: H02P8/00 ,  G05B19/40 ,  H02P8/12 ,  G01R19/00 ,  H02P6/18 ,  G05B19/00 ,  H02P8/34 ,  G01R31/34

CPC classification number: H02P8/12 ,  G01R19/00 ,  G01R31/343 ,  G05B19/00 ,  G05B2219/37317 ,  G05B2219/41326 ,  H02P6/182 ,  H02P8/34

Abstract: A method and a circuit arrangement are provided in which a mechanical load applied to the motor shaft or a load angle of the motor can be detected without sensors in a stepper motor. This is achieved substantially based on the fact that the load or the load angle creates a mutually induced voltage (back EMF) in the motor coils and the load or the load angle is detected by determining the phase shift of the motor voltage at at least one of the motor coil relative to the coil current at said motor coil connection, the phase shift being caused by the mutually induced voltage. A method and a circuit arrangement are also provided wherein the motor current of a stepper motor can be controlled according to load angle in such a way that the current consumption of the motor is relatively low.

Abstract translation: 提供了一种方法和电路装置，其中可以在步进电机中没有传感器来检测施加到电动机轴的机械负载或电动机的负载角。 这基本上基于负载或负载角度在电机线圈中产生相互感应的电压（反电动势）的事实而实现，并且通过确定电动机电压至少一个的相移来检测负载或负载角度 的电动机线圈相对于所述电动机线圈连接处的线圈电流，相移是由相互感应的电压引起的。 还提供了一种方法和电路装置，其中步进电动机的电动机电流可以根据负载角度被控制，使得电动机的电流消耗相对较低。

公开(公告)号：US09099949B2

公开(公告)日：2015-08-04

申请号：US13901347

申请日：2013-05-23

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Hyun Paek ,  Joo Yul Ko

IPC: H02P23/12 ,  H02P6/14 ,  H02P6/18 ,  H02P6/08

CPC classification number: H02P6/147 ,  H02P6/08 ,  H02P6/085 ,  H02P6/15 ,  H02P6/153 ,  H02P6/157 ,  H02P6/182 ,  H02P6/187

Abstract: There are provided a back electromotive force detection circuit and a motor driving control apparatus using the same. The back electromotive force detection circuit includes a duty determining unit and a delay compensation unit. The duty determining unit outputs a differential level according to a duty of a driving control signal of a motor. The delay compensation unit performs delay compensation differently on each differential level to compensate for a delay in back electromotive force of the motor regardless of a variation in a duty of the driving control signal.

Abstract translation: 提供了反电动势检测电路和使用该反电动势检测电路的电动机驱动控制装置。 反电动势检测电路包括占空比确定单元和延迟补偿单元。 占空比确定单元根据电动机的驱动控制信号的占空比输出差分电平。 延迟补偿单元在每个差分电平上不同地执行延迟补偿，以补偿电动机的反电动势的延迟，而与驱动控制信号的占空比的变化无关。

公开(公告)号：US09088236B2

公开(公告)日：2015-07-21

申请号：US13188582

申请日：2011-07-22

Applicant: Elio Marioni

Inventor： Elio Marioni

IPC: H02P3/18 ,  H02P6/00 ,  H02P6/18 ,  H02P27/16

CPC classification number: H02P6/182 ,  H02P6/26 ,  H02P27/16

Abstract: A method, which is efficient and cost-effective to implement, for controlling, at steady-state, a synchronous electric motor comprising a permanent magnet rotor and a stator provided with windings connected to an electrical grid by means of a switch controlled by a processing unit, said method comprising the following steps: periodically switching on said switch by means of a PWM output of said processing unit; continuously verifying the shift with respect to an ideal operating condition of the motor; and modifying the switched on period of the switch in feedback to approach said ideal operating condition of the motor.

Abstract translation: 一种用于在稳定状态下控制同步电动机的方法，所述同步电动机包括永磁体转子和定子，所述永磁体转子和定子具有通过由处理控制的开关连接到电网 所述方法包括以下步骤：通过所述处理单元的PWM输出周期性地接通所述开关; 连续验证相对于电动机理想运行状态的换档; 以及在反馈中修改开关的接通周期以接近电动机的理想操作状态。

公开(公告)号：US09077267B2

公开(公告)日：2015-07-07

申请号：US13495642

申请日：2012-06-13

Applicant: Tsutomu Murata

Inventor： Tsutomu Murata

IPC: H02P6/00 ,  H02P6/18 ,  H02P27/00 ,  H02P7/285 ,  H02P6/20

CPC classification number: H02P6/008 ,  H02P6/182 ,  H02P6/21 ,  H02P6/26

Abstract: A driving circuit for a single-phase-brushless motor, includes: a driving-signal-generating circuit to generate a driving signal for supplying, to a driving coil of the single-phase-brushless motor, first- and second-driving currents, alternately with a de-energized period therebetween during which neither of the first or the second driving current is supplied to the driving coil; an output circuit to supply the first or the second driving current to the driving coil in response to the driving signal; and a zero-cross detecting circuit to detect a zero cross of an induced voltage, generated across the driving coil, during the de-energized period, wherein the driving-signal-generating circuit determines a length of a subsequent energized period based on a driving cycle from a start of an energized period, during which the output circuit supplies the first or the second driving current to the driving coil, to a time when the zero-cross-detecting circuit detects the zero cross.

Abstract translation: 一种用于单相无刷电动机的驱动电路，包括：驱动信号发生电路，用于产生用于向单相无刷电动机的驱动线圈提供第一和第二驱动电流的驱动信号， 交替地在它们之间的断电时段期间，第一或第二驱动电流都不被提供给驱动线圈; 输出电路，用于响应于驱动信号将第一或第二驱动电流提供给驱动线圈; 以及零交叉检测电路，用于在去激励周期期间检测跨越驱动线圈产生的感应电压的零交叉，其中所述驱动信号发生电路基于驱动来确定随后的通电时段的长度 从输出电路向驱动线圈提供第一或第二驱动电流的通电时段的开始循环到零交叉检测电路检测到零交叉的时刻。

公开(公告)号：US20150177297A1

公开(公告)日：2015-06-25

申请号：US14415640

申请日：2013-07-11

Applicant: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg

Inventor： Johannes Schwarzkopf

IPC: G01R25/00 ,  G01D5/14

CPC classification number: G01R25/00 ,  G01D5/14 ,  H02P6/182 ,  H02P6/185

Abstract: The invention relates to a generic method for determining the rotor position of an electronically-commutated multi-phase direct current motor, characterised in: (a) generating of a plurality of test voltage pulses in the winding system with a specified switch-on duration ΔT by means of the commuting device in different phase distributed over 360°; (b)—measurement of the current values of the current responses of the test voltage pulses on expiration of the switch-on period of the respective test voltage pulse; (c) approximation of the measured current values by means of a periodic approximation function from a superimposition of a preferably sinusoidal fundamental wave with an amplitude IEMK and the associated first harmonic with an amplitude Und as a factor of the phase of the test voltage pulse, wherein the sinusoidal fundamental wave follows the chronological progression of the counter EMF voltage of the stator and the first harmonic follows the chronological progression of the stator of the direct current motor; (d) determination of an amplitude ratio value IEMF/IInd of the fundamental wave and the first harmonic of the approximation function; (e) determination of the rotor position as the EMF angle from the argument of the first harmonic of the approximation function as a factor of the amplitude ratio IEMF/IInd, wherein the EMF angle indicates the phase offset of the sinusoidal progression of the counter EMF voltage of the stator relative to the approximation function and the inductivity angle indicates the phase offset of the sinusoidal progression of the inductivity of the stator relative to the approximation function.

Abstract translation: 本发明涉及一种用于确定电子换向多相直流电动机的转子位置的通用方法，其特征在于：（a）在具有指定的接通持续时间的绕组系统中产生多个测试电压脉冲＆Dgr ; T通过不同相位的通勤装置分布在360°以上; （b） - 测量各个测试电压脉冲的接通时间期间测试电压脉冲的当前响应的当前值; （c）通过周期近似函数从具有振幅IEMK的优选正弦基波和相关联的第一谐波的叠加测量的电流值的近似值，振幅Und作为测试电压脉冲的相位的因子， 其中正弦基波跟随定子的反电动势电压的时间顺序，并且第一谐波遵循直流电动机的定子的时间顺序; （d）确定基波的幅度比值IEMF / IInd和近似函数的一次谐波; （e）确定作为作为幅度比IEMF / IInd的因子的来自近似函数的一次谐波的自变量的EMF角的转子位置，其中EMF角表示反电动势的正弦进展的相位偏移 定子相对于近似函数的电压和感应角表示定子相对于近似函数的电感的正弦进展的相位偏移。

公开(公告)号：US20150145454A1

公开(公告)日：2015-05-28

申请号：US14547267

申请日：2014-11-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shigeru Kameyama

IPC: H02P6/00 ,  H02P6/18

CPC classification number: H02P6/186 ,  G03G15/5008 ,  G03G15/80 ,  H02P6/182

Abstract: A motor control apparatus includes: a supply unit configured to supply a current for excitation to a plurality of coils of a motor; a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of at least one of the plurality of coils; a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit.

Abstract translation: 电动机控制装置包括：供给单元，被配置为向马达的多个线圈供给励磁电流; 第一检测单元，被配置为检测根据所述多个线圈中的至少一个的电感的变化而变化的物理量; 确定单元，被配置为基于由所述第一检测单元检测到的物理量来确定所述马达的转子的旋转位置; 以及控制单元，其被配置为基于所述确定单元的确定结果来控制所述电动机的转子的旋转位置。

公开(公告)号：US20150130378A1

公开(公告)日：2015-05-14

申请号：US14535623

申请日：2014-11-07

Applicant: ROHM CO., LTD.

Inventor： KENJI SUGIURA

IPC: H02P6/18 ,  H02P6/16 ,  H02P6/10 ,  H02P6/14

CPC classification number: H02P6/182 ,  H02P6/15

Abstract: The present disclosure provides a device and a method for driving a motor that demonstrates low noise and/or low vibration. A pulse-modulated control pulse signal S2 is generated by a driving signal generation portion 310 at each phase. A driving voltage VU˜VW, with duty cycle corresponding to the control pulse signal S2 and being inserted with specific idle time is applied to coils LU˜LW at each phase. A current phase detection signal S3 indicating a phase of the current IL flowing through the coil LU is generated by the current phase detection portion 330 at a specific phase (the phase U) corresponding to the control pulse signal S2 according to a pulse width of a terminal voltage VU at one end of the coil LU of the phase U.

Abstract translation: 本公开提供了一种用于驱动电动机的装置和方法，其显示出低噪声和/或低振动。 脉冲调制控制脉冲信号S2由驱动信号生成部310在各相产生。 对应于控制脉冲信号S2的占空因数并以特定空闲时间插入的驱动电压VU〜VW施加到各相的线圈LU〜LW。 当前相位检测部分330根据脉冲宽度对应于控制脉冲信号S2的特定相位（相位U）产生指示流过线圈LU的电流IL的相位的电流相位检测信号S3。 U相的线圈LU的一端的端子电压VU

公开(公告)号：US20150123583A1

公开(公告)日：2015-05-07

申请号：US14285418

申请日：2014-05-22

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Joo Yul Ko

IPC: H02P6/18

CPC classification number: H02P6/182 ,  H02P6/15

Abstract: A motor driving control apparatus may include a zero cross point (ZCP) detecting unit detecting back electromotive force generated by a motor apparatus and detecting a plurality of zero cross points in the back electromotive force, a zero cross point correcting unit correcting the plurality of zero cross points when a time interval between the plurality of zero cross points is equal to a predetermined error period or longer, and a controlling unit controlling driving of the motor apparatus using the plurality of corrected zero cross points.

Abstract translation: 电动机驱动控制装置可以包括检测由电动机装置产生的反电动势并检测反电动势中的多个零交叉点的零交叉点（ZCP）检测单元，校正多个零点的零交叉点校正单元 所述多个零交叉点之间的时间间隔等于预定误差周期或更长时间的交叉点;以及控制单元，其使用所述多个校正的零交叉点来控制所述电动机装置的驱动。

公开(公告)号：US09000703B2

公开(公告)日：2015-04-07

申请号：US13687193

申请日：2012-11-28

Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

Inventor： Wei Seng Chew ,  Kaufik Linggajaya

IPC: H02P6/18

CPC classification number: H02P6/182

Abstract: A first input of a differential circuit is coupled to a coil tap for a first phase of a multi-phase brushless DC motor. The first phase is associated with an electrically floating coil. A second input of the differential circuit is coupled to a virtual center tap. A divider circuit is coupled between coil taps for other phases of the multi-phase brushless DC motor to define a virtual center tap. The other phases are phases actuated for motor operation when the first phase is electrically floating. The coil tap for the first phase is electrically isolated from the virtual center tap. The differential circuit performs a comparison of the voltage at the coil tap for the first phase to the voltage at the virtual center tap to generate a back EMF signal.

Abstract translation: 差分电路的第一输入耦合到用于多相无刷直流电动机的第一相的线圈抽头。 第一相与电浮动线圈相关联。 差分电路的第二输入耦合到虚拟中心抽头。 分压器电路耦合在用于多相无刷直流电动机的其它相的线圈抽头之间以限定虚拟中心抽头。 当第一相电浮动时，其他相是电动机运行的相位。 用于第一阶段的线圈分接头与虚拟中心抽头电隔离。 差分电路对第一阶段的线圈抽头的电压与虚拟中心抽头的电压进行比较，以产生反电动势信号。