Fan system and driving control device of motor
    1.
    发明授权
    Fan system and driving control device of motor 有权
    电机风扇系统和驱动控制装置

    公开(公告)号:US07671738B2

    公开(公告)日:2010-03-02

    申请号:US11898734

    申请日:2007-09-14

    IPC分类号: G08B1/08

    CPC分类号: H05K7/20209

    摘要: A driving control device of a motor includes a temperature sensing circuit, a comparing circuit, a rotation speed control circuit and a driving circuit. The temperature sensing circuit detects an environmental temperature for generating a sensing signal. The comparing circuit is electrically connected to the temperature sensing circuit, and compares the sensing signal with a reference voltage signal for outputting a comparing signal. The rotation speed control circuit is electrically connected to the comparing circuit and has a first threshold voltage and a second threshold voltage, both of which are compared with the comparing signal for outputting a rotation speed control signal. The driving circuit is electrically connected to the rotation speed control circuit, and generates a driving signal to drive the motor in accordance with the rotation speed control signal.

    摘要翻译: 电动机的驱动控制装置包括温度检测电路,比较电路,转速控制电路和驱动电路。 温度检测电路检测用于产生感测信号的环境温度。 比较电路电连接到温度检测电路,并将感测信号与用于输出比较信号的参考电压信号进行比较。 旋转速度控制电路电连接到比较电路,并且具有第一阈值电压和第二阈值电压,两者都与用于输出转速控制信号的比较信号进行比较。 驱动电路与旋转速度控制电路电连接,并根据转速控制信号产生驱动电机的驱动信号。

    Fan system and driving control device of motor
    2.
    发明申请
    Fan system and driving control device of motor 有权
    电机风扇系统和驱动控制装置

    公开(公告)号:US20080088463A1

    公开(公告)日:2008-04-17

    申请号:US11898734

    申请日:2007-09-14

    IPC分类号: G08B17/00

    CPC分类号: H05K7/20209

    摘要: A driving control device of a motor includes a temperature sensing circuit, a comparing circuit, a rotation speed control circuit and a driving circuit. The temperature sensing circuit detects an environmental temperature for generating a sensing signal. The comparing circuit is electrically connected to the temperature sensing circuit, and compares the sensing signal with a reference voltage signal for outputting a comparing signal. The rotation speed control circuit is electrically connected to the comparing circuit and has a first threshold voltage and a second threshold voltage, both of which are compared with the comparing signal for outputting a rotation speed control signal. The driving circuit is electrically connected to the rotation speed control circuit, and generates a driving signal to drive the motor in accordance with the rotation speed control signal.

    摘要翻译: 电动机的驱动控制装置包括温度检测电路,比较电路,转速控制电路和驱动电路。 温度检测电路检测用于产生感测信号的环境温度。 比较电路电连接到温度检测电路,并将感测信号与用于输出比较信号的参考电压信号进行比较。 旋转速度控制电路电连接到比较电路,并且具有第一阈值电压和第二阈值电压,两者都与用于输出转速控制信号的比较信号进行比较。 驱动电路与旋转速度控制电路电连接,并根据转速控制信号产生驱动电机的驱动信号。

    AC motor
    3.
    发明授权
    AC motor 有权

    公开(公告)号:US09240741B2

    公开(公告)日:2016-01-19

    申请号:US13242354

    申请日:2011-09-23

    IPC分类号: H02P6/14 H02P6/00 H02P6/16

    CPC分类号: H02P6/16 H02P6/26 H02P2207/05

    摘要: An embodiment of the invention provides an AC motor that is driven by an AC voltage. The AC motor includes a motor coil, a switch circuit, a position detector and a controller. The motor coil receives the AC voltage to drive an axis of the motor. The switch circuit is coupled to the motor coil and controls a current passing through the motor coil. The position detector detects the position of a motor rotor to output a polarity signal. The controller controls the switch circuit according to the polarity signal and the AC voltage to make the current to be a first current with a first direction or a second current with a second direction.

    Fan systems
    4.
    发明申请
    Fan systems 有权
    风扇系统

    公开(公告)号:US20070258805A1

    公开(公告)日:2007-11-08

    申请号:US11790851

    申请日:2007-04-27

    IPC分类号: F04D15/00

    摘要: A fan system comprising a first switch, a second switch, a coil, and a drive device. The drive device comprises a third switch and a fourth switch. The third switch, the fourth switch, the first switch, the second switch and the coil form a bridge connection.

    摘要翻译: 一种风扇系统,包括第一开关,第二开关,线圈和驱动装置。 驱动装置包括第三开关和第四开关。 第三开关,第四开关,第一开关,第二开关和线圈形成桥连接。

    Fan systems
    5.
    发明授权
    Fan systems 有权
    风扇系统

    公开(公告)号:US07781998B2

    公开(公告)日:2010-08-24

    申请号:US11790851

    申请日:2007-04-27

    IPC分类号: H02P6/14

    摘要: A fan system comprising a first switch, a second switch, a coil, and a drive device. The drive device comprises a third switch and a fourth switch. The third switch, the fourth switch, the first switch, the second switch and the coil form a bridge connection.

    摘要翻译: 一种风扇系统,包括第一开关,第二开关,线圈和驱动装置。 驱动装置包括第三开关和第四开关。 第三开关,第四开关,第一开关,第二开关和线圈形成桥连接。

    Fan system and speed detecting device thereof
    6.
    发明授权
    Fan system and speed detecting device thereof 有权
    风扇系统及其速度检测装置

    公开(公告)号:US07701158B2

    公开(公告)日:2010-04-20

    申请号:US11638508

    申请日:2006-12-14

    IPC分类号: H02P7/00

    摘要: A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.

    摘要翻译: 风扇系统包括驱动装置,速度检测装置和逻辑装置。 驱动装置产生速度检测信号和预定报警信号。 与驱动装置电连接的速度检测装置接收速度检测信号,当速度检测信号低于基准信号时,生成低速信号。 逻辑装置分别与驱动装置和速度检测装置电连接,并且当逻辑装置接收到预定的报警信号或低速信号时产生报警信号。

    Brushless DC motor drive apparatus
    7.
    发明授权
    Brushless DC motor drive apparatus 有权
    无刷直流电机驱动装置

    公开(公告)号:US07348744B2

    公开(公告)日:2008-03-25

    申请号:US11295509

    申请日:2005-12-07

    IPC分类号: H02P6/18 H02H7/08

    CPC分类号: H02H7/0811 H02H7/08

    摘要: A brushless DC motor drive apparatus for driving a rotor includes a drive circuit rotating the rotor, a current shutdown and auto-restart circuit coupled to the drive circuit, and a DC voltage comparison circuit coupled to the current shutdown and auto-restart circuit. The current shutdown and auto-restart circuit detects blockage of the rotor via the DC voltage comparison circuit and shuts off the power to the drive circuit accordingly.

    摘要翻译: 用于驱动转子的无刷直流电动机驱动装置包括旋转转子的驱动电路,耦合到驱动电路的电流关断和自动重启电路以及耦合到当前关断和自动重启电路的直流电压比较电路。 当前的关断和自动重启电路通过直流电压比较电路检测转子的堵塞,并相应地切断驱动电路的电源。

    Motor driving circuit and motor driving method
    8.
    发明授权
    Motor driving circuit and motor driving method 有权
    电机驱动电路和电机驱动方式

    公开(公告)号:US08080963B2

    公开(公告)日:2011-12-20

    申请号:US12241887

    申请日:2008-09-30

    IPC分类号: H02P1/00

    CPC分类号: H02P7/29

    摘要: A motor driving circuit includes a detecting unit, a signal control unit, a comparing unit and a driving unit. The detecting unit detects a rotation speed of a motor and thus outputs a detecting signal. The signal control unit generates a reference signal. The comparing unit electrically connected with the detecting unit and the signal control unit, and receives the detecting signal and the reference signal and thus outputs a comparing signal. The driving unit electrically connected with the comparing unit, and receives the comparing signal and thus outputs a driving signal to drive the motor.

    摘要翻译: 电动机驱动电路包括检测单元,信号控制单元,比较单元和驱动单元。 检测单元检测电动机的转速,从而输出检测信号。 信号控制单元生成参考信号。 比较单元与检测单元和信号控制单元电连接,并接收检测信号和参考信号,从而输出比较信号。 所述驱动单元与所述比较单元电连接,并且接收所述比较信号,从而输出用于驱动所述电动机的驱动信号。

    Fan speed control circuit
    9.
    发明申请
    Fan speed control circuit 有权
    风扇转速控制电路

    公开(公告)号:US20060056823A1

    公开(公告)日:2006-03-16

    申请号:US11270494

    申请日:2005-11-10

    IPC分类号: H02P7/29

    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。

    Brushless direct current motor and driving unit thereof
    10.
    发明授权
    Brushless direct current motor and driving unit thereof 有权
    无刷直流电动机及其驱动单元

    公开(公告)号:US08629639B2

    公开(公告)日:2014-01-14

    申请号:US12397867

    申请日:2009-03-04

    IPC分类号: H02P25/00 H03K3/00

    CPC分类号: H02P6/14 H02K3/28 H02K29/03

    摘要: A brushless direct current (DC) motor includes a rotor, a stator and a driving unit. The rotor includes a plurality of magnetic poles. The stator includes a plurality of upper pole arms and a plurality of lower pole arms. The driving unit includes at least two coils wound on the upper pole arms and the lower pole arms respectively, and the driving unit generates an alternating magnetic field on the stator for driving the rotor.

    摘要翻译: 无刷直流(DC)电动机包括转子,定子和驱动单元。 转子包括多个磁极。 定子包括多个上极臂和多个下极臂。 驱动单元包括分别缠绕在上极臂和下极臂上的至少两个线圈,并且驱动单元在定子上产生用于驱动转子的交变磁场。