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1. 发明授权

US07327124B2 Control apparatus and method for a boost-inverting converter 有权
标题翻译：升压反相转换器的控制装置和方法
公开(公告)号：US07327124B2
公开(公告)日：2008-02-05
申请号：US11388158
申请日：2006-03-24
申请人： Jing-Meng Liu , Chung-Lung Pai , Hung-Der Su , Wei-Hsin Wei
发明人： Jing-Meng Liu , Chung-Lung Pai , Hung-Der Su , Wei-Hsin Wei
IPC分类号： G05F1/577
CPC分类号： H02M3/157 , H02M3/1588 , Y02B70/1466
摘要： A plurality of switches, an inductor and two capacitors are configured to be a boost-inverting converter. To operate the converter in a boost-inverting mode, a control apparatus and method switch the switches such that the inductor is energized in a first phase, the first capacitor is discharged to produce an inverting voltage in a second phase, and the capacitor Cout1 is discharged to produce the inverting voltage and the second capacitor is charged to produce a boost voltage in a third phase. Therefore, the boost-inverting converter has lower peak inductor current and less power loss, and the limitation to the switch design for the boost-inverting converter is relaxed.
摘要翻译：多个开关，电感器和两个电容器被配置为升压反相转换器。为了在升压反转模式下操作转换器，控制装置和方法切换开关使得电感器在第一相中通电，第一电容器被放电以产生第二相的反相电压，并且电容器Cout 1 被放电以产生反相电压，并且第二电容器被充电以在第三相中产生升压电压。因此，升压反相转换器具有较低的峰值电感电流和较小的功率损耗，并且对升压反相转换器的开关设计的限制放宽。

2. 发明申请

US20060214648A1 Control apparatus and method for a boost-inverting converter 有权
标题翻译：升压反相转换器的控制装置和方法
公开(公告)号：US20060214648A1
公开(公告)日：2006-09-28
申请号：US11388158
申请日：2006-03-24
申请人： Jing-Meng Liu , Chung-Lung Pai , Hung-Der Su , Wei-Hsin Wei
发明人： Jing-Meng Liu , Chung-Lung Pai , Hung-Der Su , Wei-Hsin Wei
IPC分类号： G05F1/00
CPC分类号： H02M3/157 , H02M3/1588 , Y02B70/1466
摘要： A plurality of switches, an inductor and two capacitors are configured to be a boost-inverting converter. To operate the converter in a boost-inverting mode, a control apparatus and method switch the switches such that the inductor is energized in a first phase, the first capacitor is discharged to produce an inverting voltage in a second phase, and the second capacitor is charged to produce a boost voltage in a third phase. Therefore, the boost-inverting converter has lower peak inductor current and less power loss, and the limitation to the switch design for the boost-inverting converter is relaxed.
摘要翻译：多个开关，电感器和两个电容器被配置为升压反相转换器。为了在升压反转模式下操作转换器，控制装置和方法切换开关使得电感器在第一相中通电，第一电容器被放电以在第二相中产生反相电压，并且第二电容器充电以在第三相中产生升压电压。因此，升压反相转换器具有较低的峰值电感电流和较小的功率损耗，并且对升压反相转换器的开关设计的限制放宽。

3. 发明授权

US07122971B2 Driver circuit for driving a plurality of DC lamp strings 失效
标题翻译：用于驱动多个DC灯串的驱动电路
公开(公告)号：US07122971B2
公开(公告)日：2006-10-17
申请号：US10976809
申请日：2004-11-01
申请人： Ching-Chiang Yeh , Chung-Lung Pai , Wei-Hsin Wei
发明人： Ching-Chiang Yeh , Chung-Lung Pai , Wei-Hsin Wei
IPC分类号： H05B37/00 , H05B39/00
CPC分类号： H05B33/0815 , H05B33/0827
摘要： A driver circuit for a DC light source supplies a voltage generated by a DC-to-DC converter for a plurality of lamp strings connected in parallel and a plurality of driving currents generated by a current mirror for the lamp strings, such that the lamp strings may have well controlled or uniform brightness.
摘要翻译：用于DC光源的驱动电路为并联连接的多个灯串提供由DC-DC转换器产生的电压以及由灯串的电流镜产生的多个驱动电流，使得灯串可能具有良好的控制或均匀的亮度。

4. 发明申请

US20050093473A1 Driver circuit for driving a plurality of DC lamp strings 失效
标题翻译：用于驱动多个DC灯串的驱动电路
公开(公告)号：US20050093473A1
公开(公告)日：2005-05-05
申请号：US10976809
申请日：2004-11-01
申请人： Ching-Chiang Yeh , Chung-Lung Pai , Wei-Hsin Wei
发明人： Ching-Chiang Yeh , Chung-Lung Pai , Wei-Hsin Wei
IPC分类号： H05B33/08 , H05B37/00 , H05B39/00
CPC分类号： H05B33/0815 , H05B33/0827
摘要： A driver circuit for a DC light source supplies a voltage generated by a DC-to-DC converter for a plurality of lamp strings connected in parallel and a plurality of driving currents generated by a current mirror for the lamp strings, such that the lamp strings may have well controlled or uniform brightness.
摘要翻译：用于DC光源的驱动电路为并联连接的多个灯串提供由DC-DC转换器产生的电压以及由灯串的电流镜产生的多个驱动电流，使得灯串可能具有良好的控制或均匀的亮度。

5. 发明申请

US20060279331A1 Tri-state output logic with zero quiescent current by one input control 失效
标题翻译：具有零静态电流的三态输出逻辑由一个输入控制
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。

6. 发明授权

US07385422B2 Tri-state output logic with zero quiescent current by one input control 失效
标题翻译：具有零静态电流的三态输出逻辑由一个输入控制
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。

7. 发明申请

US20090015543A1 Frame-shifted backlight-scaled display system and frame-shifted backlight scaling method 审中-公开
标题翻译：帧移背光显示系统和帧移背光缩放方法
公开(公告)号：US20090015543A1
公开(公告)日：2009-01-15
申请号：US12216720
申请日：2008-07-10
申请人： Wei-Hsin Wei , Jing-Meng Liu
发明人： Wei-Hsin Wei , Jing-Meng Liu
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2330/021 , G09G2340/16
摘要： In a backlight scaling method and system, the pixel values of a first frame are counted to obtain a first histogram of this frame simultaneously when the first frame is inputted to the data driver ICs, and a first backlight luminance generated according to the first histogram is applied to the backlight driver for the backlight scaling for a second frame when the derived second frame is inputted to the data driver after the pixel values of the second frame is recalculated by the first backlight luminance. In the same way, when the derived second frame is inputted to the data driver, the original pixel values of the second frame are counted to obtain a second histogram of this frame and to generate a second backlight luminance for the third frame, and so on. Because the backlight luminance for each frame is generated according to the histogram of the previous frame, only small amount of pixel buffers for the processing is required.
摘要翻译：在背光缩放方法和系统中，当第一帧被输入到数据驱动器IC时，对第一帧的像素值进行计数以同时获得该帧的第一直方图，并且根据第一直方图生成的第一背光亮度为当在第二帧的像素值被第一背光亮度重新计算之后，当所导出的第二帧被输入到数据驱动器时，应用于用于第二帧的背光缩放的背光驱动器。以相同的方式，当将导出的第二帧输入到数据驱动器时，对第二帧的原始像素值进行计数以获得该帧的第二直方图，并产生第三帧的第二背光亮度，等等。由于根据前一帧的直方图产生每帧的背光亮度，因此仅需要少量用于处理的像素缓冲器。

8. 发明申请

US20070132678A1 Dimming method and system thereof 有权
标题翻译：调光方法及其系统
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。

9. 发明授权

US08169159B2 Boost converter LED driver and controller thereof 有权
标题翻译：升压转换器LED驱动器及其控制器
公开(公告)号：US08169159B2
公开(公告)日：2012-05-01
申请号：US12232696
申请日：2008-09-23
申请人： Chien-Ping Lu , Wei-Hsin Wei , Kwan-Jen Chu , Tzu-Huan Chiu
发明人： Chien-Ping Lu , Wei-Hsin Wei , Kwan-Jen Chu , Tzu-Huan Chiu
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B33/0815
摘要： A LED driver is disclosed for providing a current for LED lighting. The LED driver includes an inductor and a controller having a power switch, and the inductor, the power switch and a LED to be driven are configured to be an asynchronous boost converter. Because the driven LED serves as a rectifier diode of the asynchronous boost converter, the controller may have fewer components and requires smaller die area.
摘要翻译：公开了一种用于为LED照明提供电流的LED驱动器。 LED驱动器包括电感器和具有电源开关的控制器，并且电感器，电源开关和要驱动的LED被配置为异步升压转换器。由于驱动LED用作异步升压转换器的整流二极管，所以控制器可能具有较少的元件并且需要更小的管芯面积。

10. 发明授权

US06803798B1 Output control apparatus of pulse width modulator 失效
标题翻译：脉宽调制器输出控制装置
公开(公告)号：US06803798B1
公开(公告)日：2004-10-12
申请号：US10639503
申请日：2003-08-13
申请人： Wei-Hsin Wei , Sheng-Yi Ho , Jung-Lin Chang
发明人： Wei-Hsin Wei , Sheng-Yi Ho , Jung-Lin Chang
IPC分类号： H03K502
CPC分类号： H03F3/217 , H03G3/00 , H03G3/3021
摘要： The invention provides an output control apparatus for adjusting the output level of a pulse width modulation (PWM) signal by changing the amplitude level of the output PWM signal. The output control apparatus comprises a control signal generator, a digital-to-analog converter (DAC), and an output circuit. The control signal generator generates a digital control signal. The DAC outputs a predetermined level according to the digital control signal. The output circuit with a negative feedback loop receives the PWM signal and receives the predetermined level by the negative feedback loop. While the PWM signal is logic number “0”, the negative feedback loop is not switched on, so as to control the level of the PWM signal at a base level. While the PWM signal is logic number “1”, the negative feedback loop is switched on, so as to control the level of the PWM signal at the predetermined level.
摘要翻译：本发明提供一种输出控制装置，用于通过改变输出PWM信号的幅度电平来调节脉宽调制（PWM）信号的输出电平。输出控制装置包括控制信号发生器，数模转换器（DAC）和输出电路。控制信号发生器产生数字控制信号。 DAC根据数字控制信号输出预定电平。具有负反馈回路的输出电路接收PWM信号并通过负反馈回路接收预定电平。当PWM信号为逻辑编号“0”时，负反馈环路不接通，以便控制基准电平的PWM信号电平。当PWM信号为逻辑编号“1”时，负反馈环路导通，以便将PWM信号的电平控制在预定电平。

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