公开(公告)号：US20090236997A1

公开(公告)日：2009-09-24

申请号：US12382588

申请日：2009-03-19

申请人： Jing-Meng Liu

发明人： Jing-Meng Liu

IPC分类号： H05B41/34 ,  H05B39/04 ,  H05B41/36

CPC分类号： A01M29/10

摘要： A LED control circuit and method generate a high frequency clock signal with a fixed duty for a LED driver, to supply a switching current to drive a LED to emit light flashing at a modulated high frequency and with a fixed duty. By controlling the flashing LED light within certain flashing frequency range, the circuit and method allow a LED light source for expelling, confusing or trapping insects but serving only an illuminative or decorative purpose to human eyes, due to the difference between human beings and insects in visual perception of flashing frequencies.

摘要翻译： LED控制电路和方法产生用于LED驱动器的固定占空比的高频时钟信号，以提供开关电流来驱动LED以以调制的高频率和固定占空比发光闪烁。 通过在一定的闪烁频率范围内控制闪烁的LED灯，电路和方法允许LED光源驱散，混淆或捕获昆虫，但仅为人眼照亮或装饰目的，由于人与昆虫之间的差异 闪烁频率的视觉感知。

公开(公告)号：US20090206663A1

公开(公告)日：2009-08-20

申请号：US12379256

申请日：2009-02-18

申请人： Jing-Meng Liu

发明人： Jing-Meng Liu

IPC分类号： H02J1/00

CPC分类号： H02M3/1588 ,  H02M2001/0022 ,  H02M2001/007 ,  Y02B70/1466 ,  Y10T307/406

摘要： A power converter includes a first conversion stage for converting an input voltage to a first output voltage and a second conversion stage for converting the first output voltage to a second output voltage. An error signal is generated according to a reference voltage and a feedback signal extracted from the second conversion stage, and a feed forward signal is generated from the error signal and injected into the first conversion stage to stabilize the first output voltage. The feedback signal is a function of the second output voltage and thus, the error signal varies with the second output voltage. As a result, the first output voltage will be stabilized when the second output voltage varies, due to the varied feed forward signal.

摘要翻译： 功率转换器包括用于将输入电压转换为第一输出电压的第一转换级和用于将第一输出电压转换为第二输出电压的第二转换级。 根据从第二转换级提取的参考电压和反馈信号产生误差信号，并且从误差信号产生前馈信号并将其注入到第一转换级中以稳定第一输出电压。 反馈信号是第二输出电压的函数，因此误差信号随着第二输出电压而变化。 结果，由于前馈信号的变化，当第二输出电压变化时，第一输出电压将被稳定。

公开(公告)号：US20080094349A1

公开(公告)日：2008-04-24

申请号：US11906477

申请日：2007-10-02

申请人： Chiawei Liao ,  Jing-Meng Liu

发明人： Chiawei Liao ,  Jing-Meng Liu

IPC分类号： G09G3/36

CPC分类号： H05B33/089 ,  G02F1/133603 ,  G02F2001/133612

摘要： The present invention discloses a backlight control circuit, comprising: a voltage supply circuit for receiving an input voltage and generating an output voltage under control by a control signal; at least one voltage comparison path respectively coupled to at least one light emission device path; a voltage operative amplifier circuit for generating the control signal according to a lowest voltage on the at least one voltage comparison path; and at least one under current detection circuit for detecting whether a corresponding one of the at least one light emission device path is in an under current status, whereby when anyone of the under current detection circuits detects the under current status, it sends an exclusion signal excluding a corresponding one of the at least one voltage comparison path from being an effective input of the voltage operative amplifier.

摘要翻译： 本发明公开了一种背光控制电路，包括：电压供给电路，用于接收输入电压，并通过控制信号控制输出电压; 至少一个电压比较路径分别耦合到至少一个发光器件路径; 电压操作放大器电路，用于根据所述至少一个电压比较路径上的最低电压产生所述控制信号; 以及至少一个欠电流检测电路，用于检测所述至少一个发光器件路径中的相应一个发光器件路径是否处于低电流状态，由此当所述欠电流检测电路中的任何一个检测到当前状态时，发送排除信号 不包括所述至少一个电压比较路径中的相应一个电压作为所述电压运算放大器的有效输入。

公开(公告)号：US20080094007A1

公开(公告)日：2008-04-24

申请号：US11906511

申请日：2007-10-02

申请人： Chiawei Liao ,  Jing-Meng Liu

发明人： Chiawei Liao ,  Jing-Meng Liu

IPC分类号： H05B41/36

CPC分类号： H05B33/0827 ,  H05B33/0815

摘要： The present invention discloses a backlight control circuit, and a method for controlling light emission devices. The method comprises: providing a plurality of light emission device paths connected in parallel; and setting a total current of the paths connected in parallel to a constant.

摘要翻译： 本发明公开了一种背光控制电路和控制发光装置的方法。 该方法包括：提供并联连接的多个发光装置路径; 并且将并联连接的路径的总电流设置为常数。

公开(公告)号：US20080080652A1

公开(公告)日：2008-04-03

申请号：US11801820

申请日：2007-05-12

申请人： Chih-Ching Wang ,  Jing-Meng Liu ,  Dah-Chih Lin

发明人： Chih-Ching Wang ,  Jing-Meng Liu ,  Dah-Chih Lin

IPC分类号： H04L7/02

CPC分类号： H04L25/4923 ,  H04L7/02 ,  H04L25/4904

摘要： The present invention discloses a method for single-wire transmission without clock synchronization, comprising: providing three states; defining a spacing bit by a first state of the three states; and defining data signals, a start signal and an end signal by combinations of the second and third states of the three states.

摘要翻译： 本发明公开了一种无时钟同步的单线传输方法，包括：提供三种状态; 将所述间隔位定义为所述三种状态的第一状态; 以及通过三种状态的第二和第三状态的组合来定义数据信号，起始信号和结束信号。

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：US20060268974A1

公开(公告)日：2006-11-30

申请号：US11272699

申请日：2005-11-15

申请人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Po-Shun Chung ,  Jing-Meng Liu

发明人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Po-Shun Chung ,  Jing-Meng Liu

IPC分类号： H03K9/08

CPC分类号： H02M3/156

摘要： A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM.

摘要翻译： 公开了具有自动切换脉冲跳跃模式（PSM）的脉冲宽度调制（PWM）调节器系统。 PWM调节器系统包括PWM调节器，PSM开关模块和脉冲发生器。 PWM调节器通过PWM转换输入电压。 PSM切换模块确定进入或退出PSM。 脉冲发生器自适应地产生用于开关调节器的脉冲信号以在PSM中操作。

公开(公告)号：US20050253558A1

公开(公告)日：2005-11-17

申请号：US11122035

申请日：2005-05-05

申请人： Wei-Che Chiu ,  Jing-Meng Liu

发明人： Wei-Che Chiu ,  Jing-Meng Liu

IPC分类号： H02J7/00

CPC分类号： H02J7/008

摘要： A battery charger comprises a power input to be connected to a power supply, a charge node to be connected with a battery, a N-channel or P-channel JFET coupled between the power input and the charge node, and a controller to monitor the voltage of the battery to control the JFET.

摘要翻译： 电池充电器包括要连接到电源的电源输入，要与电池连接的充电节点，耦合在电力输入和充电节点之间的N沟道或P沟道JFET，以及控制器，用于监视 电池的电压来控制JFET。

公开(公告)号：US20050162361A1

公开(公告)日：2005-07-28

申请号：US11040024

申请日：2005-01-24

申请人： Chao-Hsuan Chuang ,  Yiu-I Lin ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu

发明人： Chao-Hsuan Chuang ,  Yiu-I Lin ,  Nien-Hui Kung ,  Der-Jiunn Wang ,  Jing-Meng Liu

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H04N5/202

CPC分类号： G09G3/3611 ,  G06T5/009 ,  G06T5/40 ,  G09G2320/0276 ,  G09G2340/16

摘要： A frame-shifted technique is disclosed for a dynamic gamma correction method and system that comprises counting the gray levels of each frame to figure out the probability distribution of gray levels in the current frame, and determining the gamma reference voltages according to the probability distribution of gray levels of the current frame for the gamma correction of the next frame.

摘要翻译： 公开了一种用于动态伽马校正方法和系统的帧移动技术，其包括对每帧的灰度级进行计数，以计算当前帧中的灰度级的概率分布，并根据概率分布来确定伽马参考电压 当前帧的灰度级，用于下一帧的伽马校正。

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。