Driving device for LED module
    11.
    发明授权
    Driving device for LED module 有权
    LED模块驱动装置

    公开(公告)号:US08476842B2

    公开(公告)日:2013-07-02

    申请号:US12962657

    申请日:2010-12-08

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0815 Y02B20/346

    摘要: A driving device for a LED module is provided. The driving device for the LED module includes a voltage converting unit, a LED module voltage detecting unit, and a switching signal generation unit. The voltage converting unit produces a driving voltage to drive the LED module according to a switching signal. The LED module voltage detecting unit divides the driving voltage to produce a comparison voltage. The switching signal generation unit receives the comparison voltage by a fault detection pin and compares a reference voltage and the comparison voltage to enable or disable the switching signal. After the switching signal is disabled, the switching signal generation unit further pulls up a voltage level of the fault detection pin to a logic high level voltage, so as to produce a fault notification signal to let the fault detection pin also have a function for fault notification.

    摘要翻译: 提供了一种用于LED模块的驱动装置。 LED模块的驱动装置包括电压转换单元,LED模块电压检测单元和开关信号生成单元。 电压转换单元根据开关信号产生驱动电压以驱动LED模块。 LED模块电压检测单元分压驱动电压以产生比较电压。 开关信号发生单元通过故障检测引脚接收比较电压,并比较基准电压和比较电压,以使能或禁止开关信号。 开关信号禁止后,开关信号发生单元进一步将故障检测引脚的电压电平升高到逻辑高电平电压,以产生故障通知信号,使故障检测引脚也具有故障功能 通知。

    Negative lock loop and control method for a flyback voltage converter
    12.
    发明授权
    Negative lock loop and control method for a flyback voltage converter 有权
    用于反激式电压转换器的负锁定环路和控制方法

    公开(公告)号:US08373404B2

    公开(公告)日:2013-02-12

    申请号:US12591079

    申请日:2009-11-06

    IPC分类号: G05F1/00 H02M3/335

    CPC分类号: H02M3/33507 H02M3/33523

    摘要: A flyback voltage converter includes a transformer having a primary winding and a secondary winding, a switch serially connected to the primary winding for being switched to produce a current in the secondary winding, and a negative lock loop to adjust the peak value of the current in the secondary winding according to a current conduction time during which the current in the secondary winding is higher than a current threshold, such that the peak value of the current in the secondary winding will be in inverse proportion to the time.

    摘要翻译: 回扫电压转换器包括具有初级绕组和次级绕组的变压器,串联连接到初级绕组的开关用于切换以产生次级绕组中的电流,以及负锁定环以调整电流的峰值 次级绕组根据次级绕组中的电流的电流导通时间高于电流阈值,使得次级绕组中的电流的峰值将与时间成反比。

    Cell culture device
    13.
    发明申请
    Cell culture device 审中-公开
    细胞培养装置

    公开(公告)号:US20100184200A1

    公开(公告)日:2010-07-22

    申请号:US12461045

    申请日:2009-07-30

    IPC分类号: C12M1/34

    CPC分类号: C12M41/36 C12M23/08 C12M23/46

    摘要: The present invention relates to a cell culture device which includes: a cell culture container comprising a container body and a neck connecting to the container body wherein the container contains a top wall, a bottom wall having a first opening, and at least one side wall to define a cell culture zone, and an end of the neck has a second opening for cells or culture media being injected into the cell culture zone; a biosensor chip having a detective surface which faces the top wall of the cell culture container; and a fastening component for the biosensor chip being fastened in the first opening of the bottom wall. The cell culture of the present invention can be used for real-time detection of the cell growth and further for drug screening.

    摘要翻译: 细胞培养装置技术领域本发明涉及一种细胞培养装置,其特征在于,包括:细胞培养容器,其包括容器主体和与所述容器主体连接的颈部,所述容器包含顶壁,具有第一开口的底壁和至少一个侧壁 以限定细胞培养区,并且颈部的末端具有注入细胞培养区的细胞或培养基的第二个开口; 具有面向细胞培养容器的顶壁的检测面的生物传感器芯片; 并且用于生物传感器芯片的紧固部件紧固在底壁的第一开口中。 本发明的细胞培养物可用于实时检测细胞生长并进一步用于药物筛选。

    Negative lock loop and control method for a flyback voltage converter
    14.
    发明申请
    Negative lock loop and control method for a flyback voltage converter 有权
    用于反激式电压转换器的负锁定环路和控制方法

    公开(公告)号:US20100117617A1

    公开(公告)日:2010-05-13

    申请号:US12591079

    申请日:2009-11-06

    IPC分类号: G05F1/618

    CPC分类号: H02M3/33507 H02M3/33523

    摘要: A flyback voltage converter includes a transformer having a primary winding and a secondary winding, a switch serially connected to the primary winding for being switched to produce a current in the secondary winding, and a negative lock loop to adjust the peak value of the current in the secondary winding according to a current conduction time during which the current in the secondary winding is higher than a current threshold, such that the peak value of the current in the secondary winding will be in inverse proportion to the time.

    摘要翻译: 回扫电压转换器包括具有初级绕组和次级绕组的变压器,串联连接到初级绕组的开关用于切换以产生次级绕组中的电流,以及负锁定环以调整电流的峰值 次级绕组根据次级绕组中的电流的电流导通时间高于电流阈值,使得次级绕组中的电流的峰值将与时间成反比。

    Light-load efficiency improving method and apparatus for a flyback converter
    17.
    发明授权
    Light-load efficiency improving method and apparatus for a flyback converter 有权
    用于反激式转换器的轻载效率改进方法和装置

    公开(公告)号:US07609533B2

    公开(公告)日:2009-10-27

    申请号:US11882637

    申请日:2007-08-03

    IPC分类号: H02M3/335

    摘要: A flyback converter has a controller to switch a power switch so as to convert an input voltage to an output voltage for a load by monitoring an output voltage dependent signal and a current sensing signal derived from a current flowing through the power switch, a light-load efficiency improving apparatus monitors the load and a supply voltage provided for the controller to selectively clamp the output voltage dependent signal when the load is lower than a first threshold value and the supply voltage is lower than a second threshold value, so as to increase the supply voltage.

    摘要翻译: 反激式转换器具有控制器,用于切换电源开关,以便通过监视输出电压相关信号和从流过电源开关的电流得到的电流感测信号将输入电压转换为负载的输出电压, 负载效率改善装置监视负载和为控制器提供的电源电压,以便在负载低于第一阈值并且电源电压低于第二阈值时选择性地钳位输出电压相关信号,从而增加 电源电压。

    Load-Dependent Frequency Jittering Circuit and Load-Dependent Frequency Jittering Method
    19.
    发明申请
    Load-Dependent Frequency Jittering Circuit and Load-Dependent Frequency Jittering Method 有权
    负载相关的频率抖动电路和负载相关的频率抖动方法

    公开(公告)号:US20090115391A1

    公开(公告)日:2009-05-07

    申请号:US11935558

    申请日:2007-11-06

    IPC分类号: G05F1/46 H03K3/017

    CPC分类号: H03K3/72

    摘要: The present invention discloses a load-dependent frequency jittering circuit, comprising: a load condition detection circuit for receiving a switching signal and generating an output according to a load condition; a number generator for receiving the output of the load condition detection circuit and generating a number; a digital to analog converter for converting the output of the number generator to an analog signal; and an oscillator for generating a jittered frequency according to the output of the digital to analog converter.

    摘要翻译: 本发明公开了一种负载相关的频率抖动电路,包括:负载状态检测电路,用于接收开关信号并根据负载条件产生输出; 数字发生器,用于接收负载状态检测电路的输出并产生一个数字; 用于将数字发生器的输出转换为模拟信号的数模转换器; 以及用于根据数模转换器的输出产生抖动频率的振荡器。

    Charge pump start up circuit and method thereof
    20.
    发明授权
    Charge pump start up circuit and method thereof 有权
    电荷泵启动电路及其方法

    公开(公告)号:US07489182B2

    公开(公告)日:2009-02-10

    申请号:US11749872

    申请日:2007-05-17

    IPC分类号: G05F1/10

    CPC分类号: G11C5/145

    摘要: The present invention discloses a charge pump start up circuit comprising: a start up transistor having one end which is electrically connected with a voltage supply source, and another end which is electrically connected to a voltage node; and a charge pump circuit having an input which is electrically connected with the voltage node, and an output which is electrically with the gate of the start up transistor.

    摘要翻译: 本发明公开了一种电荷泵起动电路,包括:起动晶体管,其一端与电压源电连接,另一端电连接到电压节点; 以及具有与电压节点电连接的输入的电荷泵电路,以及与启动晶体管的栅极电连接的输出。