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    Non-synchronous boost converter including low-voltage device for load disconnection
    1.
    发明申请
    Non-synchronous boost converter including low-voltage device for load disconnection 有权
    非同步升压转换器包括用于负载断开的低压装置

    公开(公告)号：US20100026257A1

    公开(公告)日：2010-02-04

    申请号：US12318665

    申请日：2009-01-06

    申请人： Tsung-Wei Huang ,  Shun-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    发明人： Tsung-Wei Huang ,  Shun-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    IPC分类号： G05F1/00

    CPC分类号： H02M3/158

    摘要： A non-synchronous boost converter includes a low-voltage device connected between the input voltage terminal and the output voltage terminal of the converter. When the converter is shutdown, the low-voltage device disconnects the output voltage terminal and the input voltage terminal. Since it is a low-voltage device used in the converter for load disconnection, the efficiency of the converter is improved with lower cost.

    摘要翻译： 非同步升压转换器包括连接在转换器的输入电压端子和输出电压端子之间的低压装置。 当转换器关闭时，低压设备断开输出电压端子和输入电压端子。 由于它是用于负载断路的转换器中的低压装置，所以转换器的效率以较低的成本提高。

    Anti-ring asynchronous boost converter and anti-ring method for an asynchronous boost converter
    2.
    发明授权
    Anti-ring asynchronous boost converter and anti-ring method for an asynchronous boost converter 失效
    用于异步升压转换器的反环异步升压转换器和反环方法

    公开(公告)号：US08169198B2

    公开(公告)日：2012-05-01

    申请号：US12219561

    申请日：2008-07-24

    申请人： Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu ,  Tsung-Wei Huang ,  Chao-Hsuan Chuang

    发明人： Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu ,  Tsung-Wei Huang ,  Chao-Hsuan Chuang

    IPC分类号： G05F1/00

    CPC分类号： H02M3/158 ,  H02M1/44

    摘要： The phase node voltage or the PWM signal in an asynchronous boost converter is monitored to detect a phase node voltage ringing. When a phase node voltage ringing is detected, a detection signal is asserted to establish a bypass path to bypass the inductor of the converter. A charge bypass circuit is shunt to the inductor, and controlled by the detection signal to establish the bypass path. Due to the bypass path, the phase node voltage is maintained at a constant, and the phase node voltage radiation and input/output noise are eliminated.

    摘要翻译： 监控异步升压转换器中的相位节点电压或PWM信号，以检测相位节点电压振铃。 当检测到相位节点电压振铃时，检测信号被断言以建立绕过转换器电感器的旁路路径。 电荷旁路电路分流到电感，并由检测信号控制，建立旁路。 由于旁通路径，相位节点电压保持恒定，并且消除了相位节点电压辐射和输入/输出噪声。

    Perceptually linear LED brightness control
    3.
    发明申请
    Perceptually linear LED brightness control 失效
    感知线性LED亮度控制

    公开(公告)号：US20090195191A1

    公开(公告)日：2009-08-06

    申请号：US12320503

    申请日：2009-01-28

    申请人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    发明人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0845 ,  H05B33/0818 ,  Y02B20/347

    摘要： A current regulator includes a first current source to provide a reference current varying with a dimming step, and a second current source to generate a drive current for a white LED according to the reference current. The reference current and the dimming step have a relationship identical to or approximating a relationship between luminance and lightness perceived by human eyes. Thus, the white LED is controlled to have a linear variation of the luminance perceived by human eyes when the dimming step is changed.

    摘要翻译： 电流调节器包括：第一电流源，用于提供随着调光步长变化的参考电流;以及第二电流源，以根据参考电流产生白光LED的驱动电流。 参考电流和调光步骤具有与人眼感知的亮度和亮度之间的关系相同或近似的关系。 因此，当改变调光步骤时，白色LED被控制为具有人眼感知的亮度的线性变化。

    Offset cancellation of a single-ended operational amplifier
    4.
    发明申请
    Offset cancellation of a single-ended operational amplifier 有权
    单端运算放大器的偏移消除

    公开(公告)号：US20090128238A1

    公开(公告)日：2009-05-21

    申请号：US12292061

    申请日：2008-11-12

    申请人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    发明人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45744 ,  H03F3/3022 ,  H03F3/45183 ,  H03F2203/45212 ,  H03F2203/45616 ,  H03F2203/45726

    摘要： A single-ended operational amplifier includes an output stage, a first transconductance amplifier and a second transconductance amplifier. In an offset cancellation mode, two inputs of the first transconductance amplifier are supplied with a reference voltage to sink two currents from two inputs of the output stage respectively, the output stage generates a third current according to the difference between the two currents to charge a capacitor, and the second transconductance amplifier generates two currents according to the voltage in the capacitor to make currents in the two inputs of the output stage equal to each other, thereby canceling the offset of the single-ended operational amplifier.

    摘要翻译： 单端运算放大器包括输出级，第一跨导放大器和第二跨导放大器。 在偏移消除模式中，第一跨导放大器的两个输入端被提供有参考电压，以分别从输出级的两个输入端吸收两个电流，输出级根据两个电流之间的差产生第三电流，以对 电容器和第二跨导放大器根据电容器中的电压产生两个电流，以使输出级的两个输入端中的电流彼此相等，从而消除单端运算放大器的偏移。

    CHARGE PUMP DOWN CIRCUIT AND METHOD FOR THE SAME
    5.
    发明申请
    CHARGE PUMP DOWN CIRCUIT AND METHOD FOR THE SAME 有权
    充电降压电路及其相关方法

    公开(公告)号：US20090219078A1

    公开(公告)日：2009-09-03

    申请号：US12041102

    申请日：2008-03-03

    申请人： Kwan-Jen Chu ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Tsung-Wei Huang

    发明人： Kwan-Jen Chu ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Tsung-Wei Huang

    IPC分类号： G05F3/02

    CPC分类号： H02M3/07 ,  H02M2003/072

    摘要： The present invention discloses a charge pump down circuit which comprises three capacitors operating in three time phases. In the first time phase, the total of the voltages across the three capacitors is equal to an input voltage; in the second time phase, the voltage across the second capacitor is equal to the voltage across the third capacitor; in the third time phase, the difference between the voltages across the first and the second capacitors is equal to the voltage across the third capacitor, wherein the voltage across the third capacitor is the output voltage of the charge pump down circuit.

    摘要翻译： 本发明公开了一种电荷泵浦电路，其包括三个电容器，三个时间相工作。 在第一阶段，三个电容器两端的电压总和等于输入电压; 在第二时间相中，第二电容器两端的电压等于第三电容器两端的电压; 在第三时间相中，第一和第二电容器两端的电压之间的差值等于第三电容器两端的电压，其中第三电容器两端的电压是电荷泵降电路的输出电压。

    Non-synchronous boost converter including low-voltage device for load disconnection
    6.
    发明授权
    Non-synchronous boost converter including low-voltage device for load disconnection 有权
    非同步升压转换器包括用于负载断开的低压装置

    公开(公告)号：US07898227B2

    公开(公告)日：2011-03-01

    申请号：US12318665

    申请日：2009-01-06

    申请人： Tsung-Wei Huang ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    发明人： Tsung-Wei Huang ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    IPC分类号： G05F1/10

    CPC分类号： H02M3/158

    摘要： A non-synchronous boost converter includes a low-voltage device connected between the input voltage terminal and the output voltage terminal of the converter. When the converter is shutdown, the low-voltage device disconnects the output voltage terminal and the input voltage terminal. Since it is a low-voltage device used in the converter for load disconnection, the efficiency of the converter is improved with lower cost.

    摘要翻译： 非同步升压转换器包括连接在转换器的输入电压端子和输出电压端子之间的低压装置。 当转换器关闭时，低压设备断开输出电压端子和输入电压端子。 由于它是用于负载断路的转换器中的低压装置，所以转换器的效率以较低的成本提高。

    Charge pump down circuit and method for the same
    8.
    发明授权
    Charge pump down circuit and method for the same 有权
    电荷泵浦电路及方法相同

    公开(公告)号：US07667530B2

    公开(公告)日：2010-02-23

    申请号：US12041102

    申请日：2008-03-03

    申请人： Kwan-Jen Chu ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Tsung-Wei Huang

    发明人： Kwan-Jen Chu ,  Shui-Mu Lin ,  Jien-Sheng Chen ,  Tsung-Wei Huang

    IPC分类号： G05F1/10 ,  G05F3/02

    CPC分类号： H02M3/07 ,  H02M2003/072

    摘要： The present invention discloses a charge pump down circuit which comprises three capacitors operating in three time phases. In the first time phase, the total of the voltages across the three capacitors is equal to an input voltage; in the second time phase, the voltage across the second capacitor is equal to the voltage across the third capacitor; in the third time phase, the difference between the voltages across the first and the second capacitors is equal to the voltage across the third capacitor, wherein the voltage across the third capacitor is the output voltage of the charge pump down circuit.

    摘要翻译： 本发明公开了一种电荷泵浦电路，其包括三个电容器，三个时间相工作。 在第一阶段，三个电容器两端的电压总和等于输入电压; 在第二时间相中，第二电容器两端的电压等于第三电容器两端的电压; 在第三时间相中，第一和第二电容器两端的电压之间的差值等于第三电容器两端的电压，其中第三电容器两端的电压是电荷泵降电路的输出电压。

    Perceptually linear LED brightness control
    10.
    发明授权
    Perceptually linear LED brightness control 失效
    感知线性LED亮度控制

    公开(公告)号：US08198830B2

    公开(公告)日：2012-06-12

    申请号：US12320503

    申请日：2009-01-28

    申请人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    发明人： Shui-Mu Lin ,  Tsung-Wei Huang ,  Jien-Sheng Chen ,  Kwan-Jen Chu

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0845 ,  H05B33/0818 ,  Y02B20/347

    摘要： A current regulator includes a first current source to provide a reference current varying with a dimming step, and a second current source to generate a drive current for a white LED according to the reference current. The reference current and the dimming step have a relationship identical to or approximating a relationship between luminance and lightness perceived by human eyes. Thus, the white LED is controlled to have a linear variation of the luminance perceived by human eyes when the dimming step is changed.

    摘要翻译： 电流调节器包括：第一电流源，用于提供随着调光步长变化的参考电流;以及第二电流源，以根据参考电流产生白光LED的驱动电流。 参考电流和调光步骤具有与人眼感知的亮度和亮度之间的关系相同或近似的关系。 因此，当改变调光步骤时，白色LED被控制为具有人眼感知的亮度的线性变化。