Fan motor speed control circuit
    1.
    发明申请
    Fan motor speed control circuit 有权
    风机电机调速电路

    公开(公告)号:US20050019168A1

    公开(公告)日:2005-01-27

    申请号:US10695776

    申请日:2003-10-30

    CPC分类号: F04D27/004

    摘要: A fan motor speed control circuit is disclosed. The circuit includes a digital/analog converting unit and a driving unit. The digital/analog converting unit takes charge of receiving a pulse width modulation (PWM) signal and converting it into a voltage signal. The driving unit is connected with the digital/analog converting unit in series for receiving the voltage signal, while the driving unit provides a first predetermined voltage level and a second predetermined voltage level as references. The fan motor is kept to run with a low constant rotation speed when the voltage signal level is higher than the first predetermined voltage level, with a full constant rotation speed when the voltage signal level is lower than the second predetermined voltage level, and with a variable rotation speed when the voltage signal level is lower than the first predetermined voltage level and higher than the second predetermined voltage level.

    摘要翻译: 公开了一种风扇马达速度控制电路。 电路包括数字/模拟转换单元和驱动单元。 数字/模拟转换单元负责接收脉宽调制(PWM)信号并将其转换为电压信号。 驱动单元与数字/模拟转换单元串联连接以接收电压信号,而驱动单元提供第一预定电压电平和第二预定电压电平作为参考。 当电压信号电平高于第一预定电压电平时,风扇电动机以低的恒定转速运行,当电压信号电平低于第二预定电压电平时具有完全恒定的转速,并且使用 当电压信号电平低于第一预定电压电平并高于第二预定电压电平时,可变转速。

    Motor speed control device
    2.
    发明申请
    Motor speed control device 审中-公开
    电机调速装置

    公开(公告)号:US20050047762A1

    公开(公告)日:2005-03-03

    申请号:US10776510

    申请日:2004-02-12

    IPC分类号: H02P6/16 H05K7/20 H02P5/06

    CPC分类号: H05K7/20209

    摘要: A motor speed control device. The motor speed control device applied to a direct current (DC) fan includes a driving element constituted by a driving IC and Hall IC, a thermal sensor and a control element electrically connected between the driving element and the thermal sensor. The present invention utilizes a thermal sensor and a simple control element to effectively and stably control the variable speed of the fan within different temperature ranges.

    摘要翻译: 电机调速装置。 应用于直流(DC)风扇的电动机速度控制装置包括由驱动IC和霍尔IC构成的驱动元件,热传感器和电连接在驱动元件和热传感器之间的控制元件。 本发明利用热传感器和简单的控制元件,在不同的温度范围内有效和稳定地控制风扇的变速。

    Driving apparatus for fan motor
    3.
    发明授权
    Driving apparatus for fan motor 有权
    风扇电机驱动装置

    公开(公告)号:US07826722B2

    公开(公告)日:2010-11-02

    申请号:US11450419

    申请日:2006-06-12

    IPC分类号: H02P7/29

    CPC分类号: H02P7/2913

    摘要: A driving apparatus for fan motors, electrically connected between a pulse width modulation (PWM) signal generator and a controller, includes a converter electrically connected to the PWM signal generator, generating a first reference voltage according to the duty cycle of a PWM signal generated by the PWM signal generator; a reference voltage generator electrically connected to an external power source, generating a second reference voltage according to the external power source; and a comparator having a first and second input terminal and an output terminal; wherein the first input terminal is electrically connected to the converter, the second input terminal is connected to the reference voltage generator and the output terminal is connected to the controller, and when the first reference voltage is greater than the second reference voltage, a driving signal is output from the output terminal to the controller to control the rotation speed of the fan motor.

    摘要翻译: 电连接在脉宽调制(PWM)信号发生器和控制器之间的风扇电动机的驱动装置包括电连接到PWM信号发生器的转换器,根据由PWM信号发生器产生的PWM信号的占空比产生第一参考电压, PWM信号发生器; 电连接到外部电源的参考电压发生器,根据外部电源产生第二参考电压; 以及具有第一和第二输入端子和输出端子的比较器; 其中所述第一输入端子与所述转换器电连接,所述第二输入端子连接到所述参考电压发生器,并且所述输出端子连接到所述控制器,并且当所述第一参考电压大于所述第二参考电压时,驱动信号 从输出端子输出到控制器,以控制风扇马达的转速。

    Current control device and method
    4.
    发明授权
    Current control device and method 有权
    电流控制装置及方法

    公开(公告)号:US07598691B2

    公开(公告)日:2009-10-06

    申请号:US11484716

    申请日:2006-07-12

    CPC分类号: H02P7/285 H02P29/032

    摘要: A current control device for a fan motor includes a current sampling module, a signal generating module, a current detecting module and a current controlling module. The current sampling module samples an operating current of the fan motor to generate a sampled current signal. The operating current is controlled according to a driving signal. The signal generating module generates a threshold current signal. The current detecting module receives the sampled current signal and the threshold current signal and generates a motor protecting signal according to the sampled current signal and the threshold current signal. The current controlling module receives the motor protecting signal and stops generating or decreases the driving signal according to the motor protecting signal.

    摘要翻译: 用于风扇电动机的电流控制装置包括电流采样模块,信号发生模块,电流检测模块和电流控制模块。 当前采样模块对风扇电机的工作电流进行采样以产生采样电流信号。 根据驱动信号控制工作电流。 信号产生模块产生阈值电流信号。 电流检测模块接收采样电流信号和阈值电流信号,并根据采样电流信号和阈值电流信号产生电机保护信号。 电流控制模块接收电机保护信号,并根据电机保护信号停止产生或减少驱动信号。

    Fan
    5.
    发明授权
    Fan 有权
    风扇

    公开(公告)号:US07416388B2

    公开(公告)日:2008-08-26

    申请号:US10879146

    申请日:2004-06-30

    IPC分类号: F04D29/40

    CPC分类号: F04D29/646 F04D25/0606

    摘要: A fan is disclosed for use in a system, and the system has at least one connection structure. The fan is mainly composed of an impeller and a base, and the impeller is connected to the base. The impeller at least has a hub, a plurality of blades and a driver. The base has at least one engaging member, and the engaging member is corresponding to the connection structure. Further, the fan is fixed on the system by connecting the engaging member and the connection structure together.

    摘要翻译: 公开了一种用于系统的风扇,并且该系统具有至少一个连接结构。 风扇主要由叶轮和底座组成,叶轮连接到底座上。 叶轮至少具有毂,多个叶片和驱动器。 基座具有至少一个接合构件,并且接合构件对应于连接结构。 此外,通过将接合构件和连接结构连接在一起,将风扇固定在系统上。

    Blower
    6.
    发明申请
    Blower 有权
    鼓风机

    公开(公告)号:US20060165525A1

    公开(公告)日:2006-07-27

    申请号:US11316732

    申请日:2005-12-27

    IPC分类号: F04D29/44

    CPC分类号: F04D29/4213

    摘要: A blower comprises a housing and an impeller. The housing comprises a side outlet and an inlet comprising a predetermined profile, and the impeller is disposed in the housing. The predetermined profile is quadratrical, elliptical, polygonal, non-coaxial circle, or irregularly closed shaped. A flow tunnel is disposed between the impeller and the housing.

    摘要翻译: 鼓风机包括壳体和叶轮。 壳体包括侧出口和包括预定轮廓的入口,并且叶轮设置在壳体中。 该预定轮廓为三角形,椭圆形,多边形,非同轴圆形或不规则形状。 流动通道设置在叶轮和壳体之间。

    Control systems and switch devices thereof
    8.
    发明申请
    Control systems and switch devices thereof 有权
    控制系统及其开关装置

    公开(公告)号:US20070132412A1

    公开(公告)日:2007-06-14

    申请号:US11606079

    申请日:2006-11-30

    IPC分类号: H02P7/06

    CPC分类号: H02P7/29

    摘要: A control system for a motor. The control system and the motor receive an external power. The control system comprises a driver and a switch device. The driver is electrically connected to the motor. The switch device is electrically connected between the external power and the driver and turned on or off according to a control signal. The driver drives the motor according to the external power when the switch device is turned on.

    摘要翻译: 电机控制系统。 控制系统和电机接收外部电源。 控制系统包括驱动器和开关装置。 驱动器电连接到电机。 开关装置电连接在外部电源和驱动器之间,并根据控制信号导通或关断。 当开关装置打开时,驱动器根据外部电源驱动电机。

    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。

    Motor structure having low profile
    10.
    发明授权
    Motor structure having low profile 有权
    电机结构薄型

    公开(公告)号:US06703757B2

    公开(公告)日:2004-03-09

    申请号:US09985143

    申请日:2001-11-01

    IPC分类号: H02K112

    摘要: A motor structure is disclosed. The motor structure includes a stator and a rotor. Among these, the stator further includes a coil seat defined by a bottom plate, a plurality of first teeth and a plurality of second teeth. A coil is formed in the coil seat. The first teeth formed around inner periphery of the bottom plate and have a first extending portion extending so as to constitute a reversed L shape. The second teeth formed around outer periphery of the bottom plate and have a second extending portion so as to constitute a reversed L shape. The rotor, coupled to the stator, further have a circular magnet formed above the coil seat, the first extending portion and the second extending portion. Each of the first and second extending portions further includes a chamfer, a fillet, a clearance, a fold and different dimension.

    摘要翻译: 公开了一种电机结构。 电动机结构包括定子和转子。 其中,定子还包括由底板,多个第一齿和多个第二齿限定的线圈座。 在线圈座中形成线圈。 所述第一齿围绕所述底板的内周形成,并且具有延伸以构成反转的L形的第一延伸部。 所述第二齿形成在所述底板的外周的周围,并且具有第二延伸部,以构成反转的L形。 耦合到定子的转子还具有形成在线圈座上方的圆形磁体,第一延伸部分和第二延伸部分。 第一和第二延伸部分中的每一个还包括倒角,圆角,间隙,折叠和不同的尺寸。