Fan driving system with safe driving current switching
    1.
    发明授权
    Fan driving system with safe driving current switching 有权
    风扇驱动系统采用安全驱动电流切换

    公开(公告)号:US07746017B2

    公开(公告)日:2010-06-29

    申请号:US12104664

    申请日:2008-04-17

    CPC classification number: H02P7/04

    Abstract: An exemplary fan driving system includes a driving device and a MOSFET group. The driving device includes a first adjustable resistor connected between its first voltage signal input terminal and ground, and a second adjustable resistor connected between its second voltage signal input terminal and ground. The MOSFET group includes two N-type MOSFETs and two P-type MOSFETs. The first terminal of the fan is connected to an anode of D1 and a cathode of D3. The second terminal of the fan is connected to an anode of D2 and a cathode of D4. Cathodes of the D1 and D2 are configured to connect a supply voltage. Anodes of the D3 and D4 both are grounded. The fan driving system can effectively discharge off the residual current in the coil of the fan at the moment of the MOSFET group being switched off.

    Abstract translation: 示例性的风扇驱动系统包括驱动装置和MOSFET组。 所述驱动装置包括连接在其第一电压信号输入端和地之间的第一可调电阻器和连接在其第二电压信号输入端和地之间的第二可调电阻器。 MOSFET组包括两个N型MOSFET和两个P型MOSFET。 风扇的第一端子连接到D1的阳极和D3的阴极。 风扇的第二端子连接到D2的阳极和D4的阴极。 D1和D2的阴极配置为连接电源电压。 D3和D4的阳极都接地。 风扇驱动系统可以在MOSFET组关闭时有效地消除风扇线圈中的剩余电流。

    Driving apparatus having an adjustable driving current output
    2.
    发明授权
    Driving apparatus having an adjustable driving current output 失效
    具有可调驱动电流输出的驱动装置

    公开(公告)号:US07586340B2

    公开(公告)日:2009-09-08

    申请号:US11733165

    申请日:2007-04-09

    CPC classification number: H03K3/64

    Abstract: An exemplary driving apparatus capable of generating a driving current, including: an analog input generating circuit, an analog input driving circuit, and an output circuit. The analog input generating circuit is electrically connected between a first voltage source and the ground and configured (i.e., structured and arranged) for supplying an adjustable analog signal. The analog input driving circuit is electrically connected between a second voltage source and the ground and configured for converting the analog signal into a pulsed signal. The output circuit is configured for converting the pulsed signal into a driving current as an output. The frequency of the pulsed signal can be adjusted via adjusting the analog signal and thereby varying the driving current. Thus the driving current can be adapted for the different target loads.

    Abstract translation: 一种能够产生驱动电流的示例性驱动装置,包括:模拟输入产生电路,模拟输入驱动电路和输出电路。 模拟输入发生电路电连接在第一电压源和地之间并被配置(即,构造和布置),用于提供可调模拟信号。 模拟输入驱动电路电连接在第二电压源和地之间并被配置为将模拟信号转换为脉冲信号。 输出电路被配置为将脉冲信号转换为作为输出的驱动电流。 脉冲信号的频率可以通过调节模拟信号进行调整,从而改变驱动电流。 因此,驱动电流可以适应不同的目标负载。

    FAN DRIVING SYSTEM WITH SAFE DRIVING CURRENT SWITCHING
    3.
    发明申请
    FAN DRIVING SYSTEM WITH SAFE DRIVING CURRENT SWITCHING 有权
    风扇驱动系统具有安全驱动电流切换

    公开(公告)号:US20090085506A1

    公开(公告)日:2009-04-02

    申请号:US12104664

    申请日:2008-04-17

    CPC classification number: H02P7/04

    Abstract: An exemplary fan driving system includes a driving device and a MOSFET group. The driving device includes a first adjustable resistor connected between its first voltage signal input terminal and ground, and a second adjustable resistor connected between its second voltage signal input terminal and ground. The MOSFET group includes two N-type MOSFETs and two P-type MOSFETs. The first terminal of the fan is connected to an anode of D1 and a cathode of D3. The second terminal of the fan is connected to an anode of D2 and a cathode of D4. Cathodes of the D1 and D2 are configured to connect a supply voltage. Anodes of the D3 and D4 both are grounded. The fan driving system can effectively discharge off the residual current in the coil of the fan at the moment of the MOSFET group being switched off.

    Abstract translation: 示例性的风扇驱动系统包括驱动装置和MOSFET组。 所述驱动装置包括连接在其第一电压信号输入端和地之间的第一可调电阻器和连接在其第二电压信号输入端和地之间的第二可调电阻器。 MOSFET组包括两个N型MOSFET和两个P型MOSFET。 风扇的第一端子连接到D1的阳极和D3的阴极。 风扇的第二端子连接到D2的阳极和D4的阴极。 D1和D2的阴极配置为连接电源电压。 D3和D4的阳极都接地。 风扇驱动系统可以在MOSFET组关闭时有效地消除风扇线圈中的剩余电流。

    DRIVING APPARATUS AND METHOD FOR ADJUSTING DRIVE VOLTAGE
    4.
    发明申请
    DRIVING APPARATUS AND METHOD FOR ADJUSTING DRIVE VOLTAGE 失效
    用于调节驱动电压的驱动装置和方法

    公开(公告)号:US20110031898A1

    公开(公告)日:2011-02-10

    申请号:US12852533

    申请日:2010-08-09

    CPC classification number: H05B33/0827

    Abstract: A driving apparatus includes a voltage transforming unit and a detector. The driving apparatus is used for supplying a drive voltage to a load. The voltage transforming unit is used for transforming a direct current (DC) voltage to the drive voltage. The detector is connected to the load for detecting a forward voltage across the load to generate a detecting voltage; wherein the detector compares the detecting voltage with a first reference voltage. If the detecting voltage is smaller than the first reference voltage, the detector generates a first feedback signal; the voltage transforming unit increases the drive voltage according to the first feedback signal, the detecting voltage is defined by subtraction of the forward voltage from the drive voltage.

    Abstract translation: 驱动装置包括电压变换单元和检测器。 驱动装置用于向负载提供驱动电压。 电压变换单元用于将直流(DC)电压转换为驱动电压。 检测器连接到负载,用于检测负载上的正向电压,以产生检测电压; 其中所述检测器将所述检测电压与第一参考电压进行比较。 如果检测电压小于第一参考电压,则检测器产生第一反馈信号; 电压变换单元根据第一反馈信号增加驱动电压,通过从驱动电压中减去正向电压来定义检测电压。

    DRIVING DEVICE AND ELECTRONIC APPARATUS USING THE SAME
    5.
    发明申请
    DRIVING DEVICE AND ELECTRONIC APPARATUS USING THE SAME 失效
    驱动装置和使用该装置的电子装置

    公开(公告)号:US20110057575A1

    公开(公告)日:2011-03-10

    申请号:US12843031

    申请日:2010-07-25

    CPC classification number: H05B33/0815

    Abstract: A driving device includes a dimmer, a rectifying-filtering unit, a rectifying-dividing unit, a control unit, and a voltage transforming unit. The dimmer is used for receiving an alternating current (AC) voltage from a power supply, and generating a primary voltage for controlling the brightness of a luminous element. The rectifying-filtering unit is used for rectifying and filtering the primary voltage to generate a secondary voltage. The rectifying-dividing unit is used for rectifying and dividing the primary voltage to generate a detecting voltage. The control unit is used for receiving the secondary voltage, and generating a pulse voltage whose duty cycle is variable with the detecting voltage. The voltage transforming unit is used for transforming the secondary voltage to a driving voltage for driving the luminous element to emit light according to the pulse voltage. A related electronic apparatus is also provided.

    Abstract translation: 驱动装置包括调光器,整流滤波单元,整流分离单元,控制单元和电压变换单元。 调光器用于从电源接收交流(AC)电压,并且产生用于控制发光元件的亮度的初级电压。 整流滤波单元用于对初级电压进行整流和滤波以产生次级电压。 整流分离单元用于整流和分压初级电压以产生检测电压。 控制单元用于接收次级电压,并产生其脉冲电压,其工作周期随检测电压而变化。 电压变换单元用于将次级电压转换为用于驱动发光元件的驱动电压,以根据脉冲电压发光。 还提供了一种相关的电子设备。

    Driving apparatus and method for adjusting drive voltage
    6.
    发明授权
    Driving apparatus and method for adjusting drive voltage 失效
    用于调节驱动电压的驱动装置和方法

    公开(公告)号:US08368324B2

    公开(公告)日:2013-02-05

    申请号:US12852533

    申请日:2010-08-09

    CPC classification number: H05B33/0827

    Abstract: A driving apparatus includes a voltage transforming unit and a detector. The driving apparatus is used for supplying a drive voltage to a load. The voltage transforming unit is used for transforming a direct current (DC) voltage to the drive voltage. The detector is connected to the load for detecting a forward voltage across the load to generate a detecting voltage; wherein the detector compares the detecting voltage with a first reference voltage. If the detecting voltage is smaller than the first reference voltage, the detector generates a first feedback signal; the voltage transforming unit increases the drive voltage according to the first feedback signal, the detecting voltage is defined by subtraction of the forward voltage from the drive voltage.

    Abstract translation: 驱动装置包括电压变换单元和检测器。 驱动装置用于向负载提供驱动电压。 电压变换单元用于将直流(DC)电压转换为驱动电压。 检测器连接到负载,用于检测负载上的正向电压,以产生检测电压; 其中所述检测器将所述检测电压与第一参考电压进行比较。 如果检测电压小于第一参考电压,则检测器产生第一反馈信号; 电压变换单元根据第一反馈信号增加驱动电压,通过从驱动电压中减去正向电压来定义检测电压。

    LEVEL SHIFTER WITH SPEEDY OPERATION
    7.
    发明申请
    LEVEL SHIFTER WITH SPEEDY OPERATION 审中-公开
    水平变速器与速度运行

    公开(公告)号:US20080116954A1

    公开(公告)日:2008-05-22

    申请号:US11733168

    申请日:2007-04-09

    CPC classification number: H03K3/35613 G09G3/3677 G09G2310/0289 H03K3/012

    Abstract: A level shifter (100) includes a first transistor (111), a second transistor (112), a third transistor (121), a fourth transistor (122), a fifth transistor (151), and a sixth transistor (152). The first and second transistors are first-type transistors; and the third and fourth transistors are second-type transistors different from the first-type transistors. The fifth and sixth transistors are the first-type transistors same as the first and second transistors. The level shifter has a quick operating speed.

    Abstract translation: 电平移位器(100)包括第一晶体管(111),第二晶体管(112),第三晶体管(121),第四晶体管(122),第五晶体管(151)和第六晶体管(152)。 第一和第二晶体管是第一型晶体管; 并且第三和第四晶体管是与第一型晶体管不同的第二型晶体管。 第五和第六晶体管是与第一和第二晶体管相同的第一类晶体管。 电平转换器具有快速的操作速度。

    Driving device and electronic apparatus using the same
    8.
    发明授权
    Driving device and electronic apparatus using the same 失效
    驱动装置及使用其的电子装置

    公开(公告)号:US08237368B2

    公开(公告)日:2012-08-07

    申请号:US12843031

    申请日:2010-07-25

    CPC classification number: H05B33/0815

    Abstract: A driving device includes a dimmer, a rectifying-filtering unit, a rectifying-dividing unit, a control unit, and a voltage transforming unit. The dimmer is used for receiving an alternating current (AC) voltage from a power supply, and generating a primary voltage for controlling the brightness of a luminous element. The rectifying-filtering unit is used for rectifying and filtering the primary voltage to generate a secondary voltage. The rectifying-dividing unit is used for rectifying and dividing the primary voltage to generate a detecting voltage. The control unit is used for receiving the secondary voltage, and generating a pulse voltage whose duty cycle is variable with the detecting voltage. The voltage transforming unit is used for transforming the secondary voltage to a driving voltage for driving the luminous element to emit light according to the pulse voltage. A related electronic apparatus is also provided.

    Abstract translation: 驱动装置包括调光器,整流滤波单元,整流分离单元,控制单元和电压变换单元。 调光器用于从电源接收交流(AC)电压,并且产生用于控制发光元件的亮度的初级电压。 整流滤波单元用于对初级电压进行整流和滤波以产生次级电压。 整流分离单元用于整流和分压初级电压以产生检测电压。 控制单元用于接收次级电压,并产生其脉冲电压,其工作周期随检测电压而变化。 电压变换单元用于将次级电压转换为用于驱动发光元件的驱动电压,以根据脉冲电压发光。 还提供了一种相关的电子设备。

    DRIVING APPARATUS HAVING AN ADJUSTABLE DRIVING CURRENT OUTPUT
    9.
    发明申请
    DRIVING APPARATUS HAVING AN ADJUSTABLE DRIVING CURRENT OUTPUT 失效
    具有可调节驱动电流输出的驱动装置

    公开(公告)号:US20080100349A1

    公开(公告)日:2008-05-01

    申请号:US11733165

    申请日:2007-04-09

    CPC classification number: H03K3/64

    Abstract: An exemplary driving apparatus capable of generating a driving current, including: an analog input generating circuit, an analog input driving circuit, and an output circuit. The analog input generating circuit is electrically connected between a first voltage source and the ground and configured (i.e., structured and arranged) for supplying an adjustable analog signal. The analog input driving circuit is electrically connected between a second voltage source and the ground and configured for converting the analog signal into a pulsed signal. The output circuit is configured for converting the pulsed signal into a driving current as an output. The frequency of the pulsed signal can be adjusted via adjusting the analog signal and thereby varying the driving current. Thus the driving current can be adapted for the different target loads.

    Abstract translation: 一种能够产生驱动电流的示例性驱动装置,包括:模拟输入产生电路,模拟输入驱动电路和输出电路。 模拟输入发生电路电连接在第一电压源和地之间并被配置(即,构造和布置),用于提供可调模拟信号。 模拟输入驱动电路电连接在第二电压源和地之间并被配置为将模拟信号转换为脉冲信号。 输出电路被配置为将脉冲信号转换为作为输出的驱动电流。 脉冲信号的频率可以通过调节模拟信号进行调整,从而改变驱动电流。 因此,驱动电流可以适应不同的目标负载。

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