公开(公告)号：US20070222391A1

公开(公告)日：2007-09-27

申请号：US11609576

申请日：2006-12-12

Applicant: Li-Min Lee ,  Che-Nan Tien ,  Chung-Che Yu

Inventor： Li-Min Lee ,  Che-Nan Tien ,  Chung-Che Yu

IPC: B60Q1/02

CPC classification number: H05B33/0827

Abstract: The invention provides an LED current balancing circuit, comprising a first and a second LED set coupled to a voltage source, a first transistor, and a second transistor. The first LED set comprises a first loader. The first transistor and the second transistor form a current balancing circuit for adjusting currents passing through the first and second LED sets.

Abstract translation: 本发明提供一种LED电流平衡电路，包括耦合到电压源的第一和第二LED组，第一晶体管和第二晶体管。 第一LED组包括第一装载机。 第一晶体管和第二晶体管形成用于调节通过第一和第二LED组的电流的电流平衡电路。

公开(公告)号：US07258740B2

公开(公告)日：2007-08-21

申请号：US11106029

申请日：2005-04-14

Applicant: Sheng-Lung Huang ,  Hsiao-Wen Lee ,  Chia-Chang Kuo ,  Sheng Bang Huang ,  Tsai-Shuan Chou ,  Li-Min Lee

Inventor： Sheng-Lung Huang ,  Hsiao-Wen Lee ,  Chia-Chang Kuo ,  Sheng Bang Huang ,  Tsai-Shuan Chou ,  Li-Min Lee

IPC: C30B15/02

CPC classification number: C30B13/00 ,  C30B29/30 ,  C30B29/32

Abstract: The present invention relates to an apparatus for making a source material into a crystal fiber having different regions of polarization inversion. The apparatus of the present invention is similar to a laser-heated pedestal growth (LHPG) apparatus, characterized in that a first electric field generating device and a second electric field generating device are included. The first electric field generating device is used for providing a first external electric field which is used for poling the crystal fiber and inducing micro-swing of the crystal fiber. The second electric field generating device is disposed on a predetermined position above the first electric field generating device for providing a second external electric field to control and maintain the amplitude of the micro-swing. Whereby, the growth condition of the crystal fiber can be controlled precisely, and a uniformly and regularly periodic polarization inversion structure is fabricated.

Abstract translation: 本发明涉及一种用于将源材料制成具有不同极化反转区域的晶体光纤的装置。 本发明的装置类似于激光加热基座生长装置（LHPG），其特征在于包括第一电场产生装置和第二电场产生装置。 第一电场产生装置用于提供用于极化晶体光纤并引起晶体光纤的微摆动的第一外部电场。 第二电场产生装置设置在第一电场产生装置上方的预定位置处，用于提供第二外部电场以控制和保持微摆幅的幅度。 由此，可以精确地控制晶体光纤的生长条件，并且制造均匀且规则的周期性极化反转结构。

公开(公告)号：US20070115057A1

公开(公告)日：2007-05-24

申请号：US11308019

申请日：2006-03-03

Applicant: Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

Inventor： Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

IPC: H03F3/45

CPC classification number: H03F3/45197 ,  H03F3/45632 ,  H03F2203/45101 ,  H03F2203/45352 ,  H03F2203/45641 ,  H03F2203/45646 ,  H03F2203/45681 ,  H03F2203/45726 ,  H03G1/0088

Abstract: A variable gain device having higher linearity and wider gain range is provided. The variable gain device includes a transduction unit for generating an output current, a control unit for adjusting the current gain of the gain amplifying unit according to a gain control signal, a gain amplifying unit receiving the current signal and generating a gain adjustable current according to the current gain of the control unit, an output DC level control unit controlling the DC level of the output signal of the variable gain device, and an output unit generating an output signal according to the signals output by the output DC level control unit and the gain amplifying unit.

Abstract translation: 提供具有更高线性度和更宽增益范围的可变增益器件。 可变增益装置包括用于产生输出电流的转换单元，用于根据增益控制信号调整增益放大单元的电流增益的控制单元，接收当前信号的增益放大单元，并根据 控制单元的当前增益，控制可变增益装置的输出信号的直流电平的输出直流电平控制单元和根据由输出直流电平控制单元输出的信号产生输出信号的输出单元， 增益放大单元。

公开(公告)号：US07129878B1

公开(公告)日：2006-10-31

申请号：US11155708

申请日：2005-06-16

Applicant: Shian Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu

Inventor： Shian Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu

IPC: H03M1/66

CPC classification number: H03M1/0612 ,  H03M1/785

Abstract: A digital to analog converter for an analog Liquid Crystal Display (LCD) includes a digital inlet, a latching circuitry, a voltage level shifter circuitry, a switching circuitry, and a resistance network with a resistance compensatory circuitry. The resistance network with the resistance compensatory circuitry is electrically connecting with the switching circuitry and adapted to regulate a pattern of the analog output signal so as to optimize the analog output signal. Specifically, the resistance network with a resistance compensatory circuitry is to produce the best linear conversion from the digital signal to the analog signal for use by the LCD.

Abstract translation: 用于模拟液晶显示器（LCD）的数模转换器包括数字入口，锁存电路，电压电平移位器电路，开关电路和具有电阻补偿电路的电阻网络。 具有电阻补偿电路的电阻网络与开关电路电连接并且适于调节模拟输出信号的模式，以优化模拟输出信号。 具体来说，具有电阻补偿电路的电阻网络是产生从数字信号到模拟信号的最佳线性转换，供LCD使用。

公开(公告)号：US20060203525A1

公开(公告)日：2006-09-14

申请号：US11431538

申请日：2006-05-11

Applicant: Chung-che Yu ,  Li-Min Lee ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

Inventor： Chung-che Yu ,  Li-Min Lee ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC: H02M3/24

CPC classification number: H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

Abstract: A DC/AC inverter for transforming a DC power source to an AC power, which drives a load. The DC/AC inverter comprises a full-bridge switch circuitry, a resonant tank, a frequency generator and a driver circuit. The full-bridge switch circuitry is electrically connected to the DC power source to convert the DC voltage to a pulse signal. The full-bridge switch circuitry comprises a first power switch, a second power switch, a third power switch, and a fourth power switch. The resonant tank is electrically connected between the full-bridge switch circuitry and a load for boosting and filtering the pulse signal to generate an AC power supplied to the load. The frequency generator generates a pulse signal at one of at least two predetermined operating frequencies based on an operation state of the DC/AC inverter. The driver circuit is coupled to the frequency generator and provides four driving signals based on the pulse signal of the frequency generator for turning on and off the first power switch, the second power switch, the third power switch, and the fourth power switch respectively. The four driving signals have the same frequency, wherein the duty cycle of two of the four driving signals is smaller than 50% and the duty cycle of the other two of the four driving signals is larger than 50%.

Abstract translation: 一种DC / AC逆变器，用于将直流电源转换为驱动负载的交流电源。 DC / AC逆变器包括全桥开关电路，谐振箱，频率发生器和驱动电路。 全桥开关电路与DC电源电连接，将DC电压转换为脉冲信号。 全桥开关电路包括第一电源开关，第二电源开关，第三电源开关和第四电源开关。 谐振箱电连接在全桥开关电路和用于升压和滤波脉冲信号的负载之间以产生提供给负载的AC电力。 频率发生器基于DC / AC逆变器的操作状态，以至少两个预定工作频率中的一个产生脉冲信号。 驱动器电路耦合到频率发生器，并且基于频率发生器的脉冲信号提供四个驱动信号，以分别打开和关闭第一电源开关，第二电源开关，第三电源开关和第四电源开关。 四个驱动信号具有相同的频率，其中四个驱动信号中的两个的占空比小于50％，四个驱动信号中另外两个的占空比大于50％。

公开(公告)号：US20060197561A1

公开(公告)日：2006-09-07

申请号：US11307131

申请日：2006-01-25

Applicant: Li-Min Lee ,  Chung-Che Yu

Inventor： Li-Min Lee ,  Chung-Che Yu

IPC: H03K4/06

CPC classification number: H03F3/217 ,  H03F2200/78

Abstract: A loading system and a controller thereof are disclosed. The controller includes an adjustable triangle wave generator, an error signal generator, and a pulse signal generator. The triangle-wave generator is adapted to perform an amplitude and frequency operation according to the reference voltage and the feedback voltage for generating an amplitude-frequency adjustable triangle wave according to a variation of the feedback voltage. The error signal generator is adapted to perform an error operation according to the feedback voltage and the reference voltage for outputting an error signal. The pulse signal generator is adapted to receive and compare the error signal and the amplitude-frequency adjustable triangle wave for outputting a pulse controlling signal for the loading system.

Abstract translation: 公开了一种装载系统及其控制器。 控制器包括可调三角波发生器，误差信号发生器和脉冲信号发生器。 三角波发生器适于根据参考电压和反馈电压执行振幅和频率运行，以根据反馈电压的变化产生振幅可调三角波。 误差信号发生器适于根据反馈电压和参考电压执行误差操作，以输出误差信号。 脉冲信号发生器适于接收和比较误差信号和幅频可调三角波，用于输出加载系统的脉冲控制信号。

公开(公告)号：US20060164366A1

公开(公告)日：2006-07-27

申请号：US11042303

申请日：2005-01-24

Applicant: Chung-Che Yu ,  Wen-Chieh Chiang ,  Li-Min Lee

Inventor： Chung-Che Yu ,  Wen-Chieh Chiang ,  Li-Min Lee

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G5/18 ,  G09G2330/06

Abstract: A controller for controlling at least two power circuits comprises a synchronous oscillator and a multi-phase PWM controller. The synchronous oscillator receives a timing signal for generating a synchronous control signal in which the timing signal is synchronous to a display signal. The multi-phase PWM controller receives the synchronous control signal for generating at least two PWM signals. The at least two PWM signals are coupled to the at least two power circuits for driving the at least two power circuits respectively. The at least two PWM signals are synchronous to the timing signal and with a phase shift between the at least two PWM signals.

Abstract translation: 用于控制至少两个电源电路的控制器包括同步振荡器和多相PWM控制器。 同步振荡器接收用于产生其中定时信号与显示信号同步的同步控制信号的定时信号。 多相PWM控制器接收用于产生至少两个PWM信号的同步控制信号。 所述至少两个PWM信号耦合到所述至少两个电源电路，以分别驱动所述至少两个电源电路。 所述至少两个PWM信号与所述定时信号同步并且在所述至少两个PWM信号之间具有相移。

公开(公告)号：US09024611B2

公开(公告)日：2015-05-05

申请号：US13585811

申请日：2012-08-14

Applicant: Li-Min Lee ,  Quan Gan ,  Shian-Sung Shiu ,  Chung-Che Yu

Inventor： Li-Min Lee ,  Quan Gan ,  Shian-Sung Shiu ,  Chung-Che Yu

IPC: G05F1/10 ,  H02M3/156 ,  H02M1/32 ,  H01L21/00 ,  H02H3/10 ,  H02H7/122 ,  H02M3/158

CPC classification number: H02M3/156 ,  H01L21/00 ,  H02H3/10 ,  H02H7/1222 ,  H02H7/1227 ,  H02M1/32 ,  H02M3/158

Abstract: A controller with a multi-function pin, adapted to control a converting circuit according to a control signal for converting an input voltage into an output voltage, is disclosed. The controller has the multi-function pin, an enable unit, an over-current detecting unit and a logic control unit. The enable unit is coupled to the multi-function pin for receiving an enable signal and activates the controller in response to the enable signal. The over-current detecting is coupled to the multi-function pin and determines an over-current value according to an over-current set resistance coupled between the multi-function pin and a voltage source. The over-current detecting unit generates an over-current protection signal according to the over-current value and a current flowing through the converting circuit. The logic control unit determines whether executing an over-current protection according to the over-current protection signal.

Abstract translation: 公开了一种具有多功能引脚的控制器，其适于根据用于将输入电压转换为输出电压的控制信号来控制转换电路。 控制器具有多功能引脚，使能单元，过流检测单元和逻辑控制单元。 使能单元耦合到多功能引脚，用于接收使能信号，并响应于使能信号激活控制器。 过电流检测耦合到多功能引脚，并根据耦合在多功能引脚和电压源之间的过电流设定电阻确定过电流值。 过流检测单元根据过电流值和流过转换电路的电流产生过电流保护信号。 逻辑控制单元根据过电流保护信号判定是否执行过电流保护。

公开(公告)号：US08558483B2

公开(公告)日：2013-10-15

申请号：US13118557

申请日：2011-05-30

Applicant: Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

Inventor： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

IPC: H05B37/02

CPC classification number: H05B33/0824 ,  H05B33/0815

Abstract: A non-linear load driving circuit and a controller for controlling a conversion circuit to drive a non-linear load are provided. The controller includes a feedback unit, a pulse width control unit, and an overshoot reduction unit. The feedback unit generates a feedback signal according to a current feedback signal that represents a load current flowing through the non-linear load. The pulse width control unit generates a control signal according to the feedback signal to control a power output of the conversion circuit. The overshoot reduction unit generates an overshoot reduction signal when the load current changes from being smaller than to being greater than a predetermined value according to the current feedback signal. The pulse width control unit receives the overshoot reduction signal and reduces the duty cycle of the control signal accordingly. Thereby, stability of feedback control is improved and damage to circuit is prevented.

Abstract translation: 提供了非线性负载驱动电路和用于控制转换电路以驱动非线性负载的控制器。 控制器包括反馈单元，脉冲宽度控制单元和过冲减少单元。 反馈单元根据表示流过非线性负载的负载电流的电流反馈信号产生反馈信号。 脉冲宽度控制单元根据反馈信号产生控制信号，以控制转换电路的功率输出。 当负载电流根据电流反馈信号从小于大于预定值变化时，过冲减少单元产生过冲减小信号。 脉冲宽度控制单元接收过冲减小信号并相应地减小控制信号的占空比。 由此，能够提高反馈控制的稳定性，防止对电路的损坏。

公开(公告)号：US08552768B2

公开(公告)日：2013-10-08

申请号：US13244636

申请日：2011-09-25

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Si-Min Wu

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Si-Min Wu

IPC: H03B1/00 ,  H03K3/00

CPC classification number: H02M1/38 ,  H02M3/156

Abstract: A synchronous driving circuit in the arts may cause a short through pheromone when a duty cycle of a duty cycle control signal is too short. The present invention sets a delay time with a suitable period when the duty cycle of the duty cycle control signal is too short to avoid the short through phenomenon.

Abstract translation: 当占空比控制信号的占空比太短时，本技术中的同步驱动电路可能导致短路信息素。 本发明在占空比控制信号的占空比太短而避免短路现象时，以合适的周期设定延迟时间。