公开(公告)号：US20130069614A1

公开(公告)日：2013-03-21

申请号：US13466791

申请日：2012-05-08

申请人： Chung-Hsien Tso ,  Wei-Hsin Wei ,  Kuo-Chen Tsai ,  Shui-Mu Lin ,  Yu-Chia Hsu ,  Wei-Chuan Wu

发明人： Chung-Hsien Tso ,  Wei-Hsin Wei ,  Kuo-Chen Tsai ,  Shui-Mu Lin ,  Yu-Chia Hsu ,  Wei-Chuan Wu

IPC分类号： G05F1/10

CPC分类号： H02M3/07

摘要： The present invention discloses a power supply circuit with adaptively enabled charge pump. The power supply circuit includes: a buck switching regulator switching at least one power switch therein to convert an input voltage to a middle voltage according to a control signal; a charge pump coupled to the buck switching regulator, wherein when the charge pump is enabled, the charge pump boosts the middle voltage to provide an output voltage higher than the middle voltage, and when the charge pump is disabled, the middle voltage is supplied as the output voltage; and a controller generating the control signal to control the switching regulator, and determining to enable or disable the charge pump according to a level of the input voltage.

摘要翻译： 本发明公开了一种具有自适应使能电荷泵的电源电路。 电源电路包括：降压开关调节器，其中至少切换一个电源开关，根据控制信号将输入电压转换为中间电压; 耦合到降压开关调节器的电荷泵，其中当电荷泵被使能时，电荷泵升高中间电压以提供高于中间电压的输出电压，并且当电荷泵被禁用时，中间电压被提供为 输出电压; 以及控制器，其产生控制信号以控制开关调节器，以及根据输入电压的电平确定使能或禁用电荷泵。

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。

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。

公开(公告)号：US07825882B2

公开(公告)日：2010-11-02

申请号：US11704244

申请日：2007-02-09

申请人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

发明人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

IPC分类号： G09G3/32

CPC分类号： H05B33/0827 ,  G09G3/3406 ,  H05B33/0815 ,  Y02B20/346

摘要： A dimming method for LED driving circuit is proposed. By temporary switching a pin that is originally used for the input/output of other electric signals to a high impedance node, the dimming control signal may be inputted to dim LEDs. The dimming method comprises the steps of: floating the pin every a period of time to pull the pin's voltage being equal to the dimming control signal; detecting the pin's voltage; and retrieving the dimming control signal in accordance with the detected pin's voltage and thereafter dimming the LEDs.

摘要翻译： 提出了一种LED驱动电路的调光方法。 通过将最初用于其他电信号的输入/输出的引脚临时切换到高阻抗节点，调光控制信号可以被输入到暗淡的LED。 该调光方法包括以下步骤：每隔一段时间浮动引脚以将引脚的电压拉至等于调光控制信号; 检测引脚的电压; 以及根据检测到的引脚的电压检索调光控制信号，然后对LED进行调光。

公开(公告)号：US07332879B2

公开(公告)日：2008-02-19

申请号：US10919015

申请日：2004-08-16

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 ,  H02M3/156

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.

公开(公告)号：US20070132678A1

公开(公告)日：2007-06-14

申请号：US11704244

申请日：2007-02-09

申请人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

发明人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

IPC分类号： G09G3/32

CPC分类号： H05B33/0827 ,  G09G3/3406 ,  H05B33/0815 ,  Y02B20/346

摘要： A dimming method for LED driving circuit is proposed. By temporary switching a pin that is originally used for the input/output of other electric signals to a high impedance node, the dimming control signal may be inputted to dim LEDs. The dimming method comprises the steps of: floating the pin every a period of time to pull the pin's voltage being equal to the dimming control signal; detecting the pin's voltage; and retrieving the dimming control signal in accordance with the detected pin's voltage and thereafter dimming the LEDs.

摘要翻译： 提出了一种LED驱动电路的调光方法。 通过将最初用于其他电信号的输入/输出的引脚临时切换到高阻抗节点，调光控制信号可以被输入到暗淡的LED。 该调光方法包括以下步骤：每隔一段时间浮动引脚以将引脚的电压拉至等于调光控制信号; 检测引脚的电压; 以及根据检测到的引脚的电压检索调光控制信号，然后对LED进行调光。

公开(公告)号：US20060279331A1

公开(公告)日：2006-12-14

申请号：US11217341

申请日：2005-09-02

申请人： Shui-Mu Lin ,  Chien-Sheng Chen ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu ,  Wei-Hsin Wei

发明人： Shui-Mu Lin ,  Chien-Sheng Chen ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu ,  Wei-Hsin Wei

IPC分类号： H03K19/00

CPC分类号： G06F1/26

摘要： A voltage generating circuit, which generates tri-state logic output in accordance with high, low or floating of the input node, is proposed. The present voltage generating circuit includes: a pulse generating circuit for generating a plurality of pulses; a voltage selecting circuit having a pair of NMOS transistors coupled in common source, each drain of the NMOS transistors is coupled to a current source respectively, both gates of the NMOS transistors are coupled to an input node, and the paired drain of the NMOS transistors generate a pair of voltage output; a plurality of flip-flops, which couple to drains of the NMOS transistors to lock the voltage output of the NMOS transistors in accordance with the pulses; an inner voltage-generating unit couples to the input node for providing a floating voltage level; and a plurality of switches controlled by the pulses for controlling the normal operation of the voltage selecting circuit and the conduction between the inner-voltage generating unit with the input node.

摘要翻译： 提出了根据输入节点的高，低或浮动产生三态逻辑输出的电压产生电路。 本电压发生电路包括：产生多个脉冲的脉冲发生电路; 一个电压选择电路，具有耦合在公共源极上的一对NMOS晶体管，NMOS晶体管的每个漏极分别耦合到电流源，NMOS晶体管的两个栅极耦合到输入节点，并且NMOS晶体管的成对漏极 产生一对电压输出; 多个触发器，其耦合到NMOS晶体管的漏极以根据脉冲锁定NMOS晶体管的电压输出; 内部电压产生单元耦合到输入节点以提供浮动电压电平; 以及由用于控制电压选择电路的正常操作的脉冲控制的多个开关以及内部电压产生单元与输入节点之间的导通。

公开(公告)号：US07385422B2

公开(公告)日：2008-06-10

申请号：US11217341

申请日：2005-09-02

申请人： Shui-Mu Lin ,  Chien-Sheng Chen ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu ,  Wei-Hsin Wei

发明人： Shui-Mu Lin ,  Chien-Sheng Chen ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu ,  Wei-Hsin Wei

IPC分类号： H03K19/02

CPC分类号： G06F1/26

摘要： A voltage generating circuit, which generates tri-state logic output in accordance with high, low or floating of the input node, is proposed. The present voltage generating circuit includes: a pulse generating circuit for generating a plurality of pulses; a voltage selecting circuit having a pair of NMOS transistors coupled in common source, each drain of the NMOS transistors is coupled to a current source respectively, both gates of the NMOS transistors are coupled to an input node, and the paired drain of the NMOS transistors generate a pair of voltage output; a plurality of flip-flops, which couple to drains of the NMOS transistors to lock the voltage output of the NMOS transistors in accordance with the pulses; an inner voltage-generating unit couples to the input node for providing a floating voltage level; and a plurality of switches controlled by the pulses for controlling the normal operation of the voltage selecting circuit and the conduction between the inner-voltage generating unit with the input node.

摘要翻译： 提出了根据输入节点的高，低或浮动产生三态逻辑输出的电压产生电路。 本电压发生电路包括：产生多个脉冲的脉冲发生电路; 一个电压选择电路，具有耦合在公共源极上的一对NMOS晶体管，NMOS晶体管的每个漏极分别耦合到电流源，NMOS晶体管的两个栅极耦合到输入节点，并且NMOS晶体管的成对漏极 产生一对电压输出; 多个触发器，其耦合到NMOS晶体管的漏极以根据脉冲锁定NMOS晶体管的电压输出; 内部电压产生单元耦合到输入节点以提供浮动电压电平; 以及由用于控制电压选择电路的正常操作的脉冲控制的多个开关以及内部电压产生单元与输入节点之间的导通。

公开(公告)号：US07368977B2

公开(公告)日：2008-05-06

申请号：US11288242

申请日：2005-11-29

申请人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

发明人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

IPC分类号： G05F1/10

CPC分类号： H05B33/0827 ,  G09G3/3406 ,  H05B33/0815 ,  Y02B20/346

摘要： A dimming method for LED driving circuit is proposed. By temporary switching a pin that is originally used for the input/output of other electric signals to a high impedance node, the dimming control signal may be inputted to dim LEDs. The dimming method comprises the steps of: floating the pin every a period of time to pull the pin's voltage being equal to the dimming control signal; detecting the pin's voltage; and retrieving the dimming control signal in accordance with the detected pin's voltage and thereafter dimming the LEDs.

摘要翻译： 提出了一种LED驱动电路的调光方法。 通过将最初用于其他电信号的输入/输出的引脚临时切换到高阻抗节点，调光控制信号可以被输入到暗淡的LED。 该调光方法包括以下步骤：每隔一段时间浮动引脚以将引脚的电压拉至等于调光控制信号; 检测引脚的电压; 以及根据检测到的引脚的电压检索调光控制信号，然后对LED进行调光。

公开(公告)号：US20060279565A1

公开(公告)日：2006-12-14

申请号：US11288242

申请日：2005-11-29

申请人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

发明人： Wei-Hsin Wei ,  Shui-Mu Lin ,  Chien-Sheng Chen ,  Tsung-Wei Huang ,  Chin-Chiang Yeh ,  Chin-Tsung Chen

IPC分类号： G09G5/00

CPC分类号： H05B33/0827 ,  G09G3/3406 ,  H05B33/0815 ,  Y02B20/346

摘要： A dimming method for LED driving circuit is proposed. By temporary switching a pin that is originally used for the input/output of other electric signals to a high impedance node, the dimming control signal may be inputted to dim LEDs. The dimming method comprises the steps of: floating the pin every a period of time to pull the pin's voltage being equal to the dimming control signal; detecting the pin's voltage; and retrieving the dimming control signal in accordance with the detected pin's voltage and thereafter dimming the LEDs.

摘要翻译： 提出了一种LED驱动电路的调光方法。 通过将最初用于其他电信号的输入/输出的引脚临时切换到高阻抗节点，调光控制信号可以被输入到暗淡的LED。 该调光方法包括以下步骤：每隔一段时间浮动引脚以将引脚的电压拉至等于调光控制信号; 检测引脚的电压; 以及根据检测到的引脚的电压检索调光控制信号，然后对LED进行调光。