Brake control system of motor
    1.
    发明授权

    公开(公告)号:US11736044B2

    公开(公告)日:2023-08-22

    申请号:US17669495

    申请日:2022-02-11

    CPC classification number: H02P3/20

    Abstract: A brake control system of a motor is provided. When a control circuit intends to brake the motor, the control circuit controls a driver circuit to turn off a first high-side switch and a second high-side switch, and to fully turn on the first low-side switch and the second low-side switch, for a period of time. Then, the control circuit controls the driver circuit to turn off one of the first low-side switch and the second low-side switch, and to continually turn on the other one of the first low-side switch and the second low-side switch, for a period of time. Then, the control circuit controls the driver circuit to turn off the other one of the first low-side switch and the second low-side switch, and to turn on the one of the first low-side switch and the second low-side switch, for a period of time.

    Control circuit for passive braking for DC motor

    公开(公告)号:US11108345B1

    公开(公告)日:2021-08-31

    申请号:US16828757

    申请日:2020-03-24

    Abstract: A control circuit includes a first high-side transistor coupled between a voltage supply terminal and the first terminal of a DC motor and a second high-side transistor coupled between the voltage supply terminal and the second terminal of the DC motor. The control circuit includes a first low-side transistor coupled between a ground terminal and the first terminal of the DC motor and a second low-side transistor coupled between the ground terminal and the second terminal of the DC motor. The control circuit includes a first pull-up resistor coupled between the voltage supply terminal and a gate terminal of the first low-side transistor and a second pull-up resistor coupled between the voltage supply terminal and a gate terminal of the second low-side transistor. The pull-up resistors apply bias currents to turn ON the first and second low-side transistors to provide a conductive path to brake the DC motor.

    Actuating device and method of operating an actuating device
    3.
    发明授权
    Actuating device and method of operating an actuating device 有权
    驱动装置和操作致动装置的方法

    公开(公告)号:US08716963B2

    公开(公告)日:2014-05-06

    申请号:US13591952

    申请日:2012-08-22

    Abstract: An actuating device for displacing a control device, such as a gate valve or other control mechanism, in particular for use in oil or gas production systems, includes a motor-gear unit and a threaded spindle drive, which is operable by said motor-gear unit. The threaded spindle drive includes at least a threaded spindle and a screw nut. The threaded spindle is displaceable in an essentially axial-direction so as to displace the control device between an advance position and a retracted position. The threaded spindle drive further includes a position holding means holding the attained position of the threaded spindle. The position holding means is directly connected to a motor shaft of the motor-gear unit so as to apply a holding torque to said motor shaft.

    Abstract translation: 用于移动诸如闸阀或其他控制机构的控制装置的驱动装置,特别是用于油或气体生产系统中的驱动装置包括马达齿轮单元和螺纹主轴驱动器,其可由所述马达齿轮 单元。 螺纹主轴驱动器至少包括螺纹主轴和螺母。 螺纹主轴可在基本上轴向方向上移位,以使控制装置在提前位置和缩回位置之间移动。 螺纹主轴驱动器还包括保持螺纹主轴的到达位置的位置保持装置。 位置保持装置直接连接到电动机齿轮单元的电动机轴,以将保持转矩施加到所述电动机轴。

    DRIVE CONTROL CIRCUIT FOR LINEAR VIBRATION MOTOR
    4.
    发明申请
    DRIVE CONTROL CIRCUIT FOR LINEAR VIBRATION MOTOR 有权
    用于线性振动电机的驱动控制电路

    公开(公告)号:US20110279068A1

    公开(公告)日:2011-11-17

    申请号:US13107320

    申请日:2011-05-13

    Applicant: Tsutomu MURATA

    Inventor: Tsutomu MURATA

    CPC classification number: H02P3/10 H02P25/032

    Abstract: In a drive control circuit of a linear vibration motor, a drive signal generating unit generates a drive signal used to alternately deliver a positive current and a negative current to a coil. A driver unit generates a drive current in response to the drive signal generated by the drive signal generating unit and supplies the drive current to the coil. An induced voltage detector detects an induced voltage occurring in the coil. After a running of the linear vibration motor has terminated, the drive signal generating unit generates a drive signal whose phase is opposite to that of the drive signal generated during the motor running; this drive signal of opposite phase includes a high impedance period during which the driver unit is controlled to a high impedance state. The induced voltage detector detects the induced voltage occurring in the coil during the high impedance period.

    Abstract translation: 在线性振动电动机的驱动控制电路中,驱动信号生成单元生成用于交替地向线圈递送正电流和负电流的驱动信号。 驱动器单元响应于由驱动信号产生单元产生的驱动信号产生驱动电流,并将驱动电流提供给线圈。 感应电压检测器检测线圈中产生的感应电压。 在线性振动电动机的运转结束之后,驱动信号生成部生成与电动机运转时产生的驱动信号相反的驱动信号, 该相位相的驱动信号包括驱动器单元被控制到高阻抗状态的高阻抗周期。 感应电压检测器在高阻抗时段期间检测线圈中产生的感应电压。

    DRIVE CONTROL CIRCUIT FOR LINEAR VIBRATION MOTOR
    5.
    发明申请
    DRIVE CONTROL CIRCUIT FOR LINEAR VIBRATION MOTOR 有权
    用于线性振动电机的驱动控制电路

    公开(公告)号:US20110279067A1

    公开(公告)日:2011-11-17

    申请号:US13107059

    申请日:2011-05-13

    Applicant: Tsutomu MURATA

    Inventor: Tsutomu MURATA

    CPC classification number: H02P3/10 H02P25/032

    Abstract: In a drive control circuit of a linear vibration motor, a differential amplifier circuit includes an operational amplifier in which an P-channel type transistor is used as a transistor that receives an input voltage, and the differential amplifier circuit detects an induced voltage occurring in a coil. Before the H-bridge circuit is controlled to a high impedance state, a drive signal generating unit turns on a first transistor and a second transistor, and delivers a regenerative current through the coil, the first transistor, the second transistor and the power supply potential.

    Abstract translation: 在线性振动电动机的驱动控制电路中,差分放大电路包括运算放大器,其中使用P沟道型晶体管作为接收输入电压的晶体管,差分放大电路检测在 线圈 在H桥电路被控制到高阻抗状态之前,驱动信号生成单元接通第一晶体管和第二晶体管,并且通过线圈,第一晶体管,第二晶体管和电源电位传递再生电流 。

    Method for the control of a motor
    6.
    发明授权
    Method for the control of a motor 失效
    电机控制方法

    公开(公告)号:US6002225A

    公开(公告)日:1999-12-14

    申请号:US744686

    申请日:1996-11-07

    CPC classification number: B60L7/12 H02P3/10 Y02T10/642

    Abstract: A method of breaking a motor includes the step of applying a pulse width modulated signal to the winding of the motor. A switching voltage is used to intermittently reverse the poles of the motor for selected time periods. The time periods are separated by pauses the duration of which is dependent upon the breaking force needed to stop the motor.

    Abstract translation: 一种断开电动机的方法包括将脉宽调制信号施加到电动机绕组的步骤。 使用开关电压来间歇地反转电机的极点选定的时间段。 时间段由暂停分隔,其持续时间取决于停止电机所需的断路力。

    Electric sewing machine motor control device
    8.
    发明授权
    Electric sewing machine motor control device 失效
    电动缝纫机马达控制装置

    公开(公告)号:US4749923A

    公开(公告)日:1988-06-07

    申请号:US38183

    申请日:1987-04-14

    Applicant: Yu S. Chieng

    Inventor: Yu S. Chieng

    CPC classification number: D05B69/22

    Abstract: A motor control device provided on an electric sewing machine comprising a brushless permanent-magnet motor and in combination with a magnetic pole sensor, rotational-speed and rotational-speed polarity detector for sewing machine, detectors for needle-position and needle positioning signal, and the control systems of speed and needle stagnation thereof; with the specific ways of controlling the needle stagnant position and the strength of the reverse current for braking the motor, simple structure, less power wastage and no wearable friction clutch and brake device are needed, a quick sewing machine starting, quick stabilizing of speed control and precise stagnation of the sewing needle at a preset position can be achieved.

    Abstract translation: 一种设置在电动缝纫机上的电动机控制装置,包括无刷永磁电动机,与磁极传感器,缝纫机的转速和转速极性检测器,针位置和针定位信号的检测器,以及 速度和针停滞的控制系统; 具体的方法是控制针停滞位置和反向电流强度,制动电机,结构简单,耗电少,无需摩擦离合器和制动装置,快速缝纫机启动,速度控制快速稳定 可以实现缝纫针在预定位置的精确停滞。

    Image forming system
    9.
    发明授权
    Image forming system 失效
    图像形成系统

    公开(公告)号:US4739231A

    公开(公告)日:1988-04-19

    申请号:US8133

    申请日:1987-01-22

    CPC classification number: G03G15/041 G05B19/108

    Abstract: There is provided a moving body control device comprising a motor for driving a moving body, detector for detecting the speed of the motor, memory for storing a program for the phase comparison control of the speed of the motor, and control means for controlling the motor according to said program by inputting the output from the detector.

    Abstract translation: 提供了一种移动体控制装置,包括用于驱动移动体的马达,用于检测马达的速度的检测器,用于存储用于马达的速度的相位比较控制的程序的存储器,以及用于控制马达的控制装置 根据所述程序,通过输入来自检测器的输出。

    Sewing machine driving apparatus
    10.
    发明授权
    Sewing machine driving apparatus 失效
    缝纫机驱动装置

    公开(公告)号:US4692676A

    公开(公告)日:1987-09-08

    申请号:US798279

    申请日:1985-11-04

    CPC classification number: D05B69/26 H02K29/06 H02P6/06

    Abstract: The present invention provides a machine driving apparatus which is composed of a brushless motor for switching the energization phase of the stator winding in accordance with the position of a rotor with a permanent magnet being provided in a rotor as a machine driving motor, compares a speed instructing signal to be generated from a speed instructing unit 32 in accordance with the displacement amount of a machine pedal 31 with a speed detecting signal detected by a speed detector 44 to control the rotational speed of a motor 42, also damps in reverse operation the motor 42 with a stop instructing signal to be generated by a position instructing unit 33 in accordance with the operation of the machine pedal 31 and a needle position detecting signal detected by a needle position detector 46 to stop the machine needle in a given position.

    Abstract translation: PCT No.PCT / JP85 / 00087 Sec。 371日期:1985年11月4日 102(e)1985年11月4日日期PCT提交1985年2月26日PCT公布。 公开号WO85 / 03958 1985年9月12日,本发明提供一种机器驱动装置,其由无刷电动机构成,该无刷电动机根据转子的位置切换定子绕组的通电相,永久磁铁设置在转子中作为 机器驱动电动机根据速度检测器44检测的速度检测信号,根据机械踏板31的位移量,比较从速度指示部32生成的速度指示信号,以控制电动机42的转速, 还可以根据机械踏板31的操作和由针位置检测器46检测到的针位置检测信号,使马达42反转操作,停止指示信号由位置指示单元33产生,以停止机针 在给定的位置。

Patent Agency Ranking