公开(公告)号：US08248001B2

公开(公告)日：2012-08-21

申请号：US12382588

申请日：2009-03-19

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: H05B37/02

CPC classification number: A01M29/10

Abstract: 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.

Abstract translation: 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：US20120153913A1

公开(公告)日：2012-06-21

申请号：US13025977

申请日：2011-02-11

Applicant: Yi-Cheng Wan ,  Jian-Rong Huang ,  Cheng-Feng Chung ,  Hung-Chun Peng

Inventor： Yi-Cheng Wan ,  Jian-Rong Huang ,  Cheng-Feng Chung ,  Hung-Chun Peng

IPC: G05F1/10

CPC classification number: H02M3/1588 ,  H02M2001/0009 ,  H02M2003/1566 ,  Y02B70/1466

Abstract: An exemplary method for improving voltage identification (VID) transient response is adapted to a voltage regulator and includes steps of: continuously sensing an inductor current of the voltage regulator to thereby output a current sense signal; during a steady state operation period, sampling the current sense signal to thereby obtain a sampling result for providing a droop control signal; after entering a VID transient period from the steady state operation period, holding the sampling result for providing the droop control signal; and taking the droop control signal as a consideration factor of producing a pulse width modulation signal to regulate an output voltage of the voltage regulator.

Abstract translation: 用于改善电压识别（VID）瞬态响应的示例性方法适用于电压调节器，并且包括以下步骤：连续感测电压调节器的电感器电流，从而输出电流感测信号; 在稳态运行期间，对电流检测信号进行采样，从而获得用于提供下垂控制信号的采样结果; 在从稳态运行期间进入VID暂态期后，保持用于提供下降控制信号的采样结果; 并且采用下垂控制信号作为产生脉宽调制信号的一个考虑因素，以调节电压调节器的输出电压。

公开(公告)号：US20120140958A1

公开(公告)日：2012-06-07

申请号：US13309397

申请日：2011-12-01

Applicant: Chang-Chih LIN ,  Hung-Dar WANG ,  Pei-Cheng HUANG

Inventor： Chang-Chih LIN ,  Hung-Dar WANG ,  Pei-Cheng HUANG

IPC: H02B1/00

CPC classification number: H04R3/00

Abstract: A driving circuit for a sound outputting apparatus includes a H-bridge and a charge pump established by six switches for driving two types of loudspeakers, respectively. The six switches include two common switches to be configured in the H-bridge and the charge pump, thereby reducing the costs and circuit area of the driving circuit.

Abstract translation: 用于声音输出装置的驱动电路包括分别由用于驱动两种扬声器的六个开关建立的H桥和电荷泵。 六个开关包括在H桥和电荷泵中配置的两个公共开关，从而降低驱动电路的成本和电路面积。

公开(公告)号：US08193791B2

公开(公告)日：2012-06-05

申请号：US12457129

申请日：2009-06-02

Applicant: Pei-Lun Huang ,  Kuang-Ming Chang

Inventor： Pei-Lun Huang ,  Kuang-Ming Chang

IPC: G05F1/40 ,  H02M3/335

CPC classification number: H02M3/33507 ,  Y10S323/908

Abstract: A method and apparatus for a flyback converter estimate the next value of the current limit for the flyback converter according to a present current limit value to achieve the maximum output power control of the flyback converter. An arithmetic circuit is used to calculate the next current limit value according three parameters, the present current limit value, the value of the current sense signal taken after a first time period counting from the instant when the present duty is triggered, and the variation of the current sense signal during a second time period, thereby narrowing the tolerance of the output power from the flyback converter.

Abstract translation: 用于反激转换器的方法和装置根据当前限流值估计反激式转换器的电流限制的下一值，以实现反激式转换器的最大输出功率控制。 算术电路用于根据三个参数，当前电流限制值，从当前值班触发时刻开始的第一时间段计数后的电流检测信号的值，计算下一个电流限制值， 在第二时间段期间的电流感测信号，从而使来自反激转换器的输出功率的容限变窄。

公开(公告)号：US20120133348A1

公开(公告)日：2012-05-31

申请号：US13307644

申请日：2011-11-30

Applicant: Po-Chin FAN ,  Kuo-Ping LIU

Inventor： Po-Chin FAN ,  Kuo-Ping LIU

IPC: G05F1/10

CPC classification number: H02M3/1588 ,  H02M2001/0025 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

Abstract: When the switching frequency of a constant on-time power converter decreases to a threshold, the power converter is switched from the original operation of triggering a constant on-time of a high-side switch responsive to the output voltage of the power converter reaching a valley point to the operation of triggering a constant off-time of the high-side switch responsive to the output voltage reaching a peak point, to thereby prevent the power converter from operating in an audio frequency range.

Abstract translation: 当恒定导通时间功率转换器的开关频率降低到阈值时，响应于功率转换器的输出电压到达高功率转换器的输出电压，功率转换器从原始操作切换到触发高侧开关的恒定导通时间 谷指向响应于输出电压达到峰值点的高侧开关的恒定关断时间的操作，从而防止功率转换器在音频范围内工作。

公开(公告)号：US20120041573A1

公开(公告)日：2012-02-16

申请号：US13190631

申请日：2011-07-26

Applicant: WEI-HSU CHANG ,  YU-KUANG WU

Inventor： WEI-HSU CHANG ,  YU-KUANG WU

IPC: G05B13/02

CPC classification number: G05B13/024 ,  G05B2219/32015 ,  G05B2219/32019

Abstract: A dynamic gain controller for providing an adjust value for a control plant to control an output value of the control plant, detects an error value between a feedback value related to the output value and an input reference value, and compares the error value with a threshold to select a gain for amplifying the error value to generate the adjust value. The dynamic gain control will make the control plant to have a shorter settling time and a stable output value.

Abstract translation: 一种动态增益控制器，用于为控制工厂提供调整值以控制控制装置的输出值，检测与输出值相关的反馈值与输入参考值之间的误差值，并将误差值与阈值进行比较 选择用于放大误差值的增益以生成调整值。 动态增益控制将使控制工厂具有较短的稳定时间和稳定的输出值。

公开(公告)号：US20120038338A1

公开(公告)日：2012-02-16

申请号：US13279366

申请日：2011-10-24

Applicant: NIEN-HUI KUNG ,  KWAN-JEN CHU

Inventor： NIEN-HUI KUNG ,  KWAN-JEN CHU

IPC: G05F1/10

CPC classification number: H02M3/158 ,  H02M2001/0009

Abstract: For output current detection of a voltage regulator, the currents in a high-side transistor and a low-side transistor of the voltage regulator are sensed and summarized to a summed current to flow through a setting resistor. The voltage variation on the setting resistor is monitored to provide a feedback signal for feedback control in the voltage regulator. This detection scheme removes the current sensing resistor from the charging current path of the voltage regulator to prevent efficiency loss on it, and is much less sensitive to noise interference because greater voltage variation is available by using a greater setting resistor.

Abstract translation: 对于电压调节器的输出电流检测，电压调节器的高侧晶体管和低侧晶体管中的电流被感测并汇总为相加电流以流过设定电阻。 监控设定电阻上的电压变化，为电压调节器中的反馈控制提供反馈信号。 该检测方案从电压调节器的充电电流路径中去除电流检测电阻，以防止其上的效率损失，并且对噪声干扰的敏感性要小得多，因为通过使用更大的设置电阻可以获得更大的电压变化。

公开(公告)号：US20110261492A1

公开(公告)日：2011-10-27

申请号：US13092282

申请日：2011-04-22

Applicant: SHAO-HUNG LU ,  JING-MENG LIU ,  JO-YU WANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

Inventor： SHAO-HUNG LU ,  JING-MENG LIU ,  JO-YU WANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

IPC: H02H3/26

CPC classification number: H02M1/32

Abstract: For a system to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit, a protection apparatus and method apply a buffered reference voltage to the parameter setting pin to define an internal parameter of the integrated circuit by the buffered reference voltage and an external element connected to the parameter setting pin, and detect the rapid variation of the internal parameter to trigger a shutdown signal or slow down the speed of the variation of the internal parameter reflected to an adjustable signal of the integrated circuit.

Abstract translation: 为了避免由集成电路的短路参数设置引脚引起的异常操作的系统，保护装置和方法将缓冲的参考电压施加到参数设置引脚，以通过缓冲的参考电压定义集成电路的内部参数，并且 外部元件连接到参数设置引脚，并检测内部参数的快速变化以触发关断信号或将内部参数变化的速度降低到集成电路的可调信号。

公开(公告)号：US20110169561A1

公开(公告)日：2011-07-14

申请号：US12984088

申请日：2011-01-04

Applicant: KWAN-JEN CHU ,  NIEN-HUI KUNG ,  HSUAN-KAI WANG

Inventor： KWAN-JEN CHU ,  NIEN-HUI KUNG ,  HSUAN-KAI WANG

IPC: G05F3/20

CPC classification number: G05F3/30

Abstract: A fast start-up low-voltage bandgap reference voltage generator uses two current generators to provide a first current having a positive temperature coefficient and a second current having a negative temperature coefficient, respectively, and a resistor to generate a temperature independent output voltage according to the sum of the first and second currents. The current generator for providing the first current has a self-bias circuit which uses a single MOSFET to establish the first current, and thereby avoids error caused by mismatched MOSFETs.

Abstract translation: 快速启动低电压带隙参考电压发生器使用两个电流发生器来分别提供具有正温度系数的第一电流和具有负温度系数的第二电流，以及根据下述方式产生与温度无关的输出电压的电阻器 第一和第二电流的总和。 用于提供第一电流的电流发生器具有使用单个MOSFET建立第一电流的自偏置电路，从而避免由不匹配的MOSFET引起的误差。

公开(公告)号：US20110109398A1

公开(公告)日：2011-05-12

申请号：US12942218

申请日：2010-11-09

Applicant: CHIEN-FU TANG ,  ISAAC Y. CHEN

Inventor： CHIEN-FU TANG ,  ISAAC Y. CHEN

IPC: H03K7/08

CPC classification number: H03K7/08 ,  H02M3/1588 ,  H02M2001/0003 ,  H03F3/217 ,  Y02B70/1466

Abstract: A fixed-frequency control circuit and method detect the difference between the frequency of a pulse width modulation signal and a target frequency to adjust a current used to determine the on-time or off-time of the pulse width modulation signal, such that the frequency of the pulse width modulation signal is stable at the target frequency.

Abstract translation: 固定频率控制电路和方法检测脉冲宽度调制信号的频率与目标频率之间的差异，以调整用于确定脉宽调制信号的导通时间或关闭时间的电流，使得频率 的脉宽调制信号在目标频率下是稳定的。