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81. 发明申请

US20060164366A1 Circuits and methods for synchronizing multi-phase converter with display signal of LCD device 审中-公开
标题翻译：用于使多相转换器与LCD器件的显示信号同步的电路和方法
公开(公告)号：US20060164366A1
公开(公告)日：2006-07-27
申请号：US11042303
申请日：2005-01-24
申请人： Chung-Che Yu , Wen-Chieh Chiang , Li-Min Lee
发明人： Chung-Che Yu , Wen-Chieh Chiang , Li-Min Lee
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3648 , G09G5/18 , G09G2330/06
摘要： 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.
摘要翻译：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。

82. 发明授权

US08487377B2 MOSFET layout and structure with common source 有权
标题翻译： MOSFET布局和结构具有共同的来源
公开(公告)号：US08487377B2
公开(公告)日：2013-07-16
申请号：US13092992
申请日：2011-04-25
申请人： Chung-Che Yu , Kuo-Wei Peng , Li-Min Lee
发明人： Chung-Che Yu , Kuo-Wei Peng , Li-Min Lee
IPC分类号： H01L27/02
CPC分类号： H01L29/7816 , H01L27/0266 , H01L29/0696 , H01L29/4238 , H01L29/7802
摘要： A MOSFET layout is disclosed. The MOSFET comprises a drain region, a gate region, a source region and a body region. The gate region is disposed outside the drain region and adjacent to the drain region. The source region has a plurality of source sections, which are disposed outside of the gate region and adjacent to the gate region. Each of two adjacent source sections has a source blank zone there between. The body region has at least two body portions, which are disposed at the source blank zones and adjacent to the gate region.
摘要翻译：公开了MOSFET布局。 MOSFET包括漏极区域，栅极区域，源极区域和体区域。栅极区域设置在漏极区域的外侧并与漏极区域相邻。源极区域具有多个源极区域，其设置在栅极区域的外部并且与栅极区域相邻。两个相邻源段中的每一个在其间具有源空白区。身体区域具有至少两个主体部分，其被设置在源空白区域并且邻近门区域。

83. 发明授权

US08466710B2 Circuit for restraining shoot through current 有权
标题翻译：限制拍摄电流的电路
公开(公告)号：US08466710B2
公开(公告)日：2013-06-18
申请号：US13225565
申请日：2011-09-06
申请人： Li-Min Lee , Chung-Che Yu
发明人： Li-Min Lee , Chung-Che Yu
IPC分类号： H03K19/003
CPC分类号： H03K19/00361
摘要： A circuit for restraining a shoot through current comprises a master selecting unit and a logic unit. The master selecting unit receives an input signal, and outputs first and second master selecting signals. The logic unit comprises first and second logic elements which generate first and second control signals for controlling two transistor switches connected in series. The first and second logic elements change the logic states of the first and second control signals according to the first and second master selecting signals. When the input signal is at a first logic level, the first logic element acquires a control privilege to change the logic state of the first control signal and trigger the second logic element to change the logic state of the second control signal. When the input signal is at a second logic, the second logic element acquires the control privilege.
摘要翻译：用于限制拍摄电流的电路包括主选择单元和逻辑单元。主选择单元接收输入信号，并输出第一和第二主选择信号。逻辑单元包括第一和第二逻辑元件，其产生用于控制串联连接的两个晶体管开关的第一和第二控制信号。第一和第二逻辑元件根据第一和第二主选择信号改变第一和第二控制信号的逻辑状态。当输入信号处于第一逻辑电平时，第一逻辑元件获取改变第一控制信号的逻辑状态并触发第二逻辑元件以改变第二控制信号的逻辑状态的控制权限。当输入信号处于第二逻辑时，第二逻辑元件获取控制特权。

84. 发明授权

US09288853B2 LED driving circuit and LED driving controller 有权
标题翻译： LED驱动电路和LED驱动控制器
公开(公告)号：US09288853B2
公开(公告)日：2016-03-15
申请号：US13354343
申请日：2012-01-20
申请人： Chung-Che Yu
发明人： Chung-Che Yu
IPC分类号： H05B37/00 , H05B33/08
CPC分类号： H05B33/0815 , H05B33/0848
摘要： The present invention discloses an LED driving circuit and controller, capable of maintaining an average value of a current flowing through an LED module at a predetermined current value. The LED driving circuit and controller compensates influences of any factors deviating the average value of the current flowing through the LED module by modulating a period of constant on time or constant off time, or by modulating the determining value(s) of current peak value and/or current valley value according to a difference between an actual average value and the preset current value.
摘要翻译：本发明公开了一种LED驱动电路和控制器，其能够将流过LED模块的电流的平均值保持在预定电流值。 LED驱动电路和控制器通过调制恒定导通时间或恒定关闭时间的周期，或通过调制电流峰值的确定值来补偿影响流过LED模块的电流的平均值的任何因素的影响， /或当前谷值根据实际平均值和预置电流值之间的差值。

85. 发明申请

US20110156607A1 DC/AC Inverter 有权
标题翻译：直流/交流逆变器
公开(公告)号：US20110156607A1
公开(公告)日：2011-06-30
申请号：US13042472
申请日：2011-03-08
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B41/36 , H02M7/537
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A direct current to alternating current (DC/AC) inverter is for driving a fluorescent lamp through quasi sine wave generation. The DC/AC inverter includes a frequency generator for generating a reference signal and a modulation signal, a pulse width modulator coupled to the frequency generator for providing a pulse width modulation signal according to said modulation signal, a driver circuit coupled to the pulse width modulator for generating at least one driving signal according to the pulse width modulation signal and the reference signal, a half bridge power switch unit coupled to the driver circuit, and a resonant tank coupled to the fluorescent lamp for outputting a quasi sine wave to drive the fluorescent lamp.
摘要翻译：直流到交流（DC / AC）的逆变器用于通过准正弦波产生来驱动荧光灯。 DC / AC逆变器包括用于产生参考信号和调制信号的频率发生器，耦合到频率发生器的脉冲宽度调制器，用于根据所述调制信号提供脉宽调制信号;驱动器电路，耦合到脉宽调制器用于根据脉宽调制信号和参考信号产生至少一个驱动信号，耦合到驱动电路的半桥功率开关单元和耦合到荧光灯的谐振槽，用于输出准正弦波以驱动荧光灯。

86. 发明授权

US07183723B2 PWM illumination control circuit with low visual noise for driving LED 有权
标题翻译： PWM照明控制电路，具有低可视噪声，用于驱动LED
公开(公告)号：US07183723B2
公开(公告)日：2007-02-27
申请号：US10708212
申请日：2004-02-17
申请人： Chung-Che Yu , Bor-Yuh Chang , Shih-Chung Huang
发明人： Chung-Che Yu , Bor-Yuh Chang , Shih-Chung Huang
IPC分类号： H05B41/16
CPC分类号： H05B33/0818 , H05B33/0845 , Y02B20/346
摘要： A pulse width modulation (PWM) illumination control circuit with a low visual noise for driving a light-emitting diode (LED) is provided. An illumination control pulse-generating unit is used to generate an illumination control pulse signal according to an illumination-adjusting signal. A duty cycle, a phase shift or a frequency of the illumination control pulse signal varies with time within a predetermined scope for controlling a DC/DC converter to drive the light-emitting diode so that the overall visual noise level of the PWM illumination control circuit is improved.
摘要翻译：提供了用于驱动发光二极管（LED）的具有低视觉噪声的脉宽调制（PWM）照明控制电路。照明控制脉冲发生单元用于根据照明调节信号产生照明控制脉冲信号。照明控制脉冲信号的占空比，相移或频率随着时间的变化随着时间的推移而变化，用于控制DC / DC转换器驱动发光二极管，使得PWM照明控制电路的总体视觉噪声水平改进了

87. 发明授权

US08508145B2 DC/AC inverter 有权
标题翻译： DC / AC变频器
公开(公告)号：US08508145B2
公开(公告)日：2013-08-13
申请号：US13396609
申请日：2012-02-15
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A fluorescent lamp device includes a frequency generator for generating a pulse signal, a driver circuit coupled to said frequency generator for generating at least one driving signal according to said pulse signal, a half bridge power switch unit coupled to the driver circuit, a resonant tank coupled to the half bridge power switch unit, and a fluorescent lamp coupled to the resonant tank.
摘要翻译：荧光灯装置包括用于产生脉冲信号的频率发生器，耦合到所述频率发生器的驱动电路，用于根据所述脉冲信号产生至少一个驱动信号;耦合到驱动电路的半桥功率开关单元，谐振槽耦合到半桥功率开关单元，以及耦合到谐振槽的荧光灯。

88. 发明申请

US20090295776A1 Light emitting diode driving circuit and controller thereof 审中-公开
标题翻译：发光二极管驱动电路及其控制器
公开(公告)号：US20090295776A1
公开(公告)日：2009-12-03
申请号：US12285189
申请日：2008-09-30
申请人： Chung-Che Yu , Chen-Hsung Wang
发明人： Chung-Che Yu , Chen-Hsung Wang
IPC分类号： G06F3/038
CPC分类号： H05B33/0827 , G09G3/342 , G09G2320/064 , G09G2330/04 , G09G2330/12 , H05B33/0818 , H05B33/0887 , Y02B20/341 , Y02B20/347
摘要： A light emitting diode driving circuit comprising: a current control unit, a current detection unit, and a driving control unit. The current control unit connects to the current detection unit and comprises a control end, a first input/output end, and a second input/output end to individually produce an electric potential detection signal. The light emitting diode driving circuit determines whether driving the light emitting diode is unusual or not according to the electric potential detection signals to decide to start a protect mechanism. Furthermore, the present invention can receive any types of dimming signals to adjust the light of the light emitting diode.
摘要翻译：一种发光二极管驱动电路，包括：电流控制单元，电流检测单元和驱动控制单元。电流控制单元连接到电流检测单元，包括控制端，第一输入/输出端和第二输入/输出端，以分别产生电位检测信号。发光二极管驱动电路根据电位检测信号来判定驱动发光二极管是否异常，以决定启动保护机构。此外，本发明可以接收任何类型的调光信号以调节发光二极管的光。

89. 发明授权

US07446597B2 Voltage-controlled current source and frequency scanner using the same 有权
标题翻译：压控电流源和频率扫描仪使用相同
公开(公告)号：US07446597B2
公开(公告)日：2008-11-04
申请号：US11554038
申请日：2006-10-30
申请人： Chung-Che Yu
发明人： Chung-Che Yu
IPC分类号： G05F3/02
CPC分类号： G05F3/262 , H03F2203/45288
摘要： A voltage-controlled current source and a frequency scanner using the same are provided. The voltage-controlled current source includes an impedance circuit, an amplifier, a transistor, and a current mirror. A first terminal of the impedance circuit is coupled to a common voltage. A first terminal of the amplifier is coupled to a second terminal of the impedance circuit, and a second terminal of the amplifier receives a control voltage. A gate of the transistor is coupled to an output terminal of the amplifier, and a first source/drain of the transistor is coupled to the other terminal of the impedance circuit. The current mirror is coupled to a second drain/source of the transistor, and includes a current output terminal, wherein a current output by the current output terminal is proportional to the current flowing through the transistor.
摘要翻译：提供压控电流源和使用其的频率扫描器。压控电流源包括阻抗电路，放大器，晶体管和电流镜。阻抗电路的第一端子耦合到公共电压。放大器的第一端子耦合到阻抗电路的第二端子，并且放大器的第二端子接收控制电压。晶体管的栅极耦合到放大器的输出端，晶体管的第一源/漏耦合到阻抗电路的另一端。电流镜耦合到晶体管的第二漏极/源极，并且包括电流输出端子，其中由电流输出端子输出的电流与流过晶体管的电流成比例。

90. 发明申请

US20080136343A1 Resonant DC/AC inverter 审中-公开
标题翻译：谐振DC / AC逆变器
公开(公告)号：US20080136343A1
公开(公告)日：2008-06-12
申请号：US11201999
申请日：2005-08-11
申请人： Chung-Che Yu , Chien-Cheng Yang
发明人： Chung-Che Yu , Chien-Cheng Yang
IPC分类号： H05B37/02 , H02M7/5387 , H05B41/36
CPC分类号： H05B41/2827 , H05B41/3925
摘要： A resonant DC/AC inverter includes a DC power source providing a DC voltage, a half-bridge power switch circuit electrically connected to the DC power source being operative to convert the DC voltage to an AC voltage, a resonant tank electrically connected between an output of the half-bridge power switch circuit and an input of a load being operative to boost and filter the AC voltage to generate an AC power voltage supplied to the load, and a controller being operative to detect a magnitude of current in the load and a magnitude of a voltage across the load and to generate pulse waveforms for turning on and off the half-bridge power switch circuit, wherein the controller substantially instantaneously varies a frequency of the pulse waveforms and a duty cycle of the pulse waveforms so as to operate the resonant DC/AC inverter near a neighborhood of a resonant frequency of the resonant tank regardless of a conduction state of the load and improve the efficiency of the inverter regardless of the higher DC voltage applied to the inverter. Particularly, the resonant DC/AC inverter utilizes a piezoelectric transformer to supply power to a fluorescent lamp which is wildly employed in display panels and is extensively used to provide backlighting for liquid crystal displays (LCDs), especially for backlighting LCD monitors and LCD televisions.
摘要翻译：谐振DC / AC逆变器包括提供DC电压的DC电源，电连接到直流电源的半桥功率开关电路，其操作以将DC电压转换为AC电压，电连接在输出端所述半桥电源开关电路的输入和负载的输入端用于升压和过滤所述AC电压以产生提供给所述负载的AC电力电压，以及控制器，用于检测所述负载中的电流的大小，以及负载上的电压的大小，并产生用于导通和关断半桥电源开关电路的脉冲波形，其中控制器基本瞬时地改变脉冲波形的频率和脉冲波形的占空比，以便操作谐振回路附近的谐振DC / AC逆变器，无论负载的导通状态如何，并提高了逆变器的效率施加到逆变器的较高直流电压的ss。特别地，谐振DC / AC逆变器利用压电变压器向显示面板中广泛使用的荧光灯供电，并广泛用于为液晶显示器（LCD）提供背光，特别是用于背光LCD显示器和液晶电视。

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