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    Control method and device for a power-converting module that drives a light-emitting component
    3.
    发明授权
    Control method and device for a power-converting module that drives a light-emitting component 失效
    用于驱动发光部件的功率转换模块的控制方法和装置

    公开(公告)号：US07550932B2

    公开(公告)日：2009-06-23

    申请号：US12002545

    申请日：2007-12-18

    申请人： Nien-Hui Kung ,  Yiu-I Lin ,  Der-Jiunn Wang ,  Chao-Hsuan Chuang ,  Jien-Sheng Chen ,  Shui-Mu Lin ,  Wei-Hsin Wei

    发明人： Nien-Hui Kung ,  Yiu-I Lin ,  Der-Jiunn Wang ,  Chao-Hsuan Chuang ,  Jien-Sheng Chen ,  Shui-Mu Lin ,  Wei-Hsin Wei

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0818 ,  H05B33/0851 ,  Y02B20/346

    摘要： A control device, which controls a power-converting module that is coupled to a light-emitting component, includes a duration detecting unit and a control signal generator. The duration detecting unit compares the duration of a predetermined logic state of a pulsating input dim control signal with a reference time period. The control signal generator is enabled by the duration detecting unit so as to generate a control signal that enables the power-converting module to generate a drive voltage for driving the light-emitting component when the duration of the predetermined logic state is not longer than the reference time period. The duration detecting unit disables the control signal generator to disable the power-converting module when the duration of the predetermined logic state is longer than the reference time period.

    摘要翻译： 控制耦合到发光部件的功率转换模块的控制装置包括持续时间检测单元和控制信号发生器。 持续时间检测单元将脉动输入调光控制信号的预定逻辑状态的持续时间与参考时间段进行比较。 控制信号发生器由持续时间检测单元使能，以便产生一个控制信号，当预定逻辑状态的持续时间不长于该时间时，该控制信号使电力转换模块能够产生用于驱动发光部件的驱动电压 参考时间段。 当预定逻辑状态的持续时间长于参考时间段时，持续时间检测单元禁止控制信号发生器禁用功率转换模块。

    Low voltage output current mirror method and apparatus thereof
    4.
    发明申请
    Low voltage output current mirror method and apparatus thereof 审中-公开
    低压输出电流镜方法及其装置

    公开(公告)号：US20060055465A1

    公开(公告)日：2006-03-16

    申请号：US10940663

    申请日：2004-09-15

    申请人： Shui-Mu Lin ,  Chao-Hsuan Chuang ,  Nien-Hui Kung ,  Yiu-I Lin ,  Der-Jiunn Wang ,  Jien-Sheng Chen ,  Wei-Hsin Wei

    发明人： Shui-Mu Lin ,  Chao-Hsuan Chuang ,  Nien-Hui Kung ,  Yiu-I Lin ,  Der-Jiunn Wang ,  Jien-Sheng Chen ,  Wei-Hsin Wei

    IPC分类号： H03F3/04

    CPC分类号： G05F3/262 ,  H03F3/04 ,  H03F3/345 ,  H03F3/45475 ,  H03F2200/513

    摘要： A current mirror circuit that comprises a current mirror unit, a feedback unit and an amplifier unit is provided to output low voltage. The current mirror unit has a plurality of connecting ends, wherein one end couples to a current source, and the other end couples to a loading device. The feedback unit couples to the current mirror unit and the amplifier unit. The amplifier unit couples to the current mirror unit to lockup the voltages of the three notes configured in a plurality of MOS transistors of the current mirror unit. By way of the configuration of the present invention, the current mirror unit can detect an accurate current or map out accurately a push controlling current through the electrical characteristic of the amplifier unit and the feedback of the feedback unit.

    摘要翻译： 提供包括电流镜单元，反馈单元和放大器单元的电流镜电路以输出低电压。 电流镜单元具有多个连接端，其中一端耦合到电流源，另一端耦合到加载装置。 反馈单元耦合到电流镜单元和放大器单元。 放大器单元耦合到电流镜单元以锁定配置在电流镜单元的多个MOS晶体管中的三个音符的电压。 通过本发明的结构，电流镜单元可以通过放大器单元的电特性和反馈单元的反馈来精确地检测精确的电流或精确地映射推压控制电流。

    Resistance mirror circuit
    7.
    发明授权
    Resistance mirror circuit 失效
    电阻镜电路

    公开(公告)号：US06747508B2

    公开(公告)日：2004-06-08

    申请号：US10229160

    申请日：2002-08-28

    申请人： Jing-Meng Liu ,  Kent Hwang ,  Chao-Hsuan Chuang ,  Cheng-Hsuan Fan

    发明人： Jing-Meng Liu ,  Kent Hwang ,  Chao-Hsuan Chuang ,  Cheng-Hsuan Fan

    IPC分类号： G05F110

    CPC分类号： G05F3/262

    摘要： A resistance adjustable of resistance mirror circuit having a master resistor R0, a reference current source terminal providing a current value I0 through the master resistor R0 to ground; a first transistor; a current mirror source terminal providing a current value n I0, through the first transistor to ground; an operational amplifier having a positive terminal connecting to a drain of the first transistor, a negative terminal connecting to the other terminal of the master resistor R0, and an output terminal connecting to a gate of the first transistor; a mirror resistor set composed of a plurality of transistors in parallel each other and having their source electrode connecting to ground. Each transistor of the mirror resistor set has a ratio of channel width over channel length being m-fold of that of the first transistor, where m, n is any positive numbers. Since gates of the transistors connect to the output terminal of the operational amplifier, each of the transistors therefore has an equivalent resistance Req=(1/nm)R0.

    摘要翻译： 电阻镜电路的电阻可调，具有主电阻器R0，参考电流源端子通过主电阻器R0接地提供电流值I0; 第一晶体管; 电流镜源端子，通过第一晶体管接地提供电流值n I0; 具有连接到第一晶体管的漏极的正端子的运算放大器，连接到主电阻器R0的另一端子的负极端子和连接到第一晶体管的栅极的输出端子; 由多个彼此并联的晶体管组成并且其源电极连接到地的镜电阻器组。 镜面电阻器组的每个晶体管的沟道宽度与沟道长度的比率与第一晶体管的沟道长度的m倍成正比，其中m，n是任何正数。 由于晶体管的栅极连接到运算放大器的输出端，因此每个晶体管具有等效电阻Req =（1 / nm）R0。

    Gamma voltage generator and method thereof for generating individually tunable gamma voltages
    8.
    发明授权
    Gamma voltage generator and method thereof for generating individually tunable gamma voltages 失效
    伽马电压发生器及其方法，用于产生单独的可调伽马电压

    公开(公告)号：US07388592B2

    公开(公告)日：2008-06-17

    申请号：US10765039

    申请日：2004-01-28

    申请人： Chao-Hsuan Chuang ,  Jing-Meng Liu ,  Shin-Lung Ho ,  Wen-Hung Huang ,  Cheng-Yuan Chang

    发明人： Chao-Hsuan Chuang ,  Jing-Meng Liu ,  Shin-Lung Ho ,  Wen-Hung Huang ,  Cheng-Yuan Chang

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3696 ,  G09G3/3611 ,  G09G2320/0276

    摘要： In a gamma voltage generator and gamma voltage generating method that can tune the gamma voltages individually, several gamma currents of a same magnitude are generated for each to flow through a variable resistive element to generate a variable common voltage and several variable voltages, from which a common gamma voltage and several first gamma voltages are generated. By use of the symmetric property of the gamma curve corresponding to those gamma voltages to be generated, several voltages are generated by mapping the first gamma voltages with the common gamma voltage as the center axis, and from which several second gamma voltages are derived. The common gamma voltage and the first and second gamma voltages are provided for those gamma voltages corresponding to the gamma curve.

    摘要翻译： 在可以单独调节伽马电压的伽马电压发生器和伽马电压产生方法中，产生相同幅度的几个伽马电流，每个伽玛电流流过可变电阻元件以产生可变公共电压和若干可变电压， 产生常见的伽马电压和几个第一伽马电压。 通过使用对应于要产生的那些伽马电压的伽马曲线的对称性，通过将第一伽马电压与公共伽马电压作为中心轴进行映射，并从中导出数个第二伽马电压，产生几个电压。 对于与伽马曲线对应的那些伽马电压，提供常见的伽马电压和第一和第二伽马电压。

    High-side short-circuit protection for a voltage converter
    9.
    发明授权
    High-side short-circuit protection for a voltage converter 有权
    电压转换器的高端短路保护

    公开(公告)号：US07099127B2

    公开(公告)日：2006-08-29

    申请号：US10653101

    申请日：2003-09-03

    申请人： Chao-Hsuan Chuang ,  Peng-Ju Lan ,  Hsien-Ming Chiu ,  Jing-Meng Liu

    发明人： Chao-Hsuan Chuang ,  Peng-Ju Lan ,  Hsien-Ming Chiu ,  Jing-Meng Liu

    IPC分类号： H02H7/00

    CPC分类号： H02M1/38

    摘要： In a voltage converter with a high-side short-circuit protection before an input voltage provided by a high-voltage power supply reaches a first threshold, a driver detects the input voltage and the output voltage of the converter to turn on the low-side transistor of the converter and turn off the high-voltage power supply when the input voltage ranges between the first threshold and a second threshold and the output voltage reaches a third threshold, to thereby avoid damages to the circuit connected to the output node of the converter. The driver comprises a front-end drive circuit to switch the high-side and low-side transistors and a low-voltage logic control circuit for the turning-on of the low-side transistor.

    摘要翻译： 在由高压电源提供的输入电压达到第一阈值之前具有高侧短路保护的电压转换器中，驱动器检测转换器的输入电压和输出电压以使低侧 晶体管，当输入电压范围在第一阈值和第二阈值之间并且输出电压达到第三阈值时，关闭高压电源，从而避免损坏连接到转换器的输出节点的电路 。 驱动器包括用于切换高侧和低侧晶体管的前端驱动电路和用于低侧晶体管导通的低压逻辑控制电路。

    Programmable voltage supervisory circuit and method with minimum programming pins and low quiescent current
    10.
    发明授权
    Programmable voltage supervisory circuit and method with minimum programming pins and low quiescent current 失效
    可编程电压监控电路和方法，具有最小编程引脚和低静态电流

    公开(公告)号：US06844709B2

    公开(公告)日：2005-01-18

    申请号：US10283062

    申请日：2002-10-30

    申请人： Chao-Hsuan Chuang ,  Jing-Meng Liu ,  Cheng-Hsuan Fan ,  Kent Hwang

    发明人： Chao-Hsuan Chuang ,  Jing-Meng Liu ,  Cheng-Hsuan Fan ,  Kent Hwang

    IPC分类号： G05F1/565 ,  G05F1/40 ,  G05F1/618

    CPC分类号： G05F1/565

    摘要： A programmable voltage supervisory circuit and method with minimum programming pins and low quiescent current is provided to monitor a supply voltage, by which only one programming pin can configure three voltage levels for the threshold voltage to be compared to the supply voltage. The programming pin is connected with a voltage select signal that is defined to be high, low or floating states each determines a setting voltage among three levels corresponding to the three threshold voltages, respectively, by a voltage select circuit. A sample/hold circuit in combination with a switch arrangement is further connected to the voltage select circuit such that the programmable voltage supervisory circuit is only operationable during the duty of a clock and thereby to reduce the power consumption thereof by squeezing the duty.

    摘要翻译： 提供了具有最小编程引脚和低静态电流的可编程电压监控电路和方法来监视电源电压，只有一个编程引脚可以配置三个电压电平，以将阈值电压与电源电压进行比较。 编程引脚与被定义为高，低或浮置状态的电压选择信号连接，分别通过电压选择电路确定对应于三个阈值电压的三个电平之间的设定电压。 与开关装置组合的采样/保持电路还与电压选择电路连接，使得可编程电压监控电路仅在时钟的占空比期间可操作，从而通过压缩占空比来减少其功耗。