公开(公告)号：US20080136343A1

公开(公告)日：2008-06-12

申请号：US11201999

申请日：2005-08-11

Applicant: Chung-Che Yu ,  Chien-Cheng Yang

Inventor： Chung-Che Yu ,  Chien-Cheng Yang

IPC: H05B37/02 ,  H02M7/5387 ,  H05B41/36

CPC classification number: H05B41/2827 ,  H05B41/3925

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07242153B2

公开(公告)日：2007-07-10

申请号：US10907742

申请日：2005-04-14

Applicant: Chung-che Yu ,  Chien-Cheng Yang

Inventor： Chung-che Yu ,  Chien-Cheng Yang

IPC: G05F1/00

CPC classification number: H05B41/2825 ,  G09G3/3406 ,  G09G2330/021 ,  G09G2330/04 ,  Y10S315/04

Abstract: A pulse width modulation inverter circuit is provided. The circuit includes a power switch driver, a power switch, a transformer unit, a feedback detector unit, and a voltage control oscillator. The circuit is electrically coupled to the DC power source to drive a load. The circuit adjusts the pulse width of the signal outputted from the power switch driver according to the voltage inputted to the DC power source. Accordingly, the circuit can maintain a fixed input voltage received by the fluorescent tube. Thus, the high input voltage but low output phenomenon can be avoided.

Abstract translation: 提供了一种脉宽调制逆变器电路。 该电路包括电源开关驱动器，电源开关，变压器单元，反馈检测器单元和电压控制振荡器。 电路电连接到直流电源以驱动负载。 该电路根据输入到DC电源的电压来调整从电源开关驱动器输出的信号的脉冲宽度。 因此，电路可以保持由荧光管接收的固定的输入电压。 因此，可以避免高输入电压但低输出现象。

公开(公告)号：US20060098935A1

公开(公告)日：2006-05-11

申请号：US10907742

申请日：2005-04-14

Applicant: Chung-che Yu ,  Chien-Cheng Yang

Inventor： Chung-che Yu ,  Chien-Cheng Yang

IPC: H04N11/00

CPC classification number: H05B41/2825 ,  G09G3/3406 ,  G09G2330/021 ,  G09G2330/04 ,  Y10S315/04

Abstract: A pulse width modulation inverter circuit is provided. The circuit includes a power switch driver, a power switch, a transformer unit, a feedback detector unit, and a voltage control oscillator. The circuit is electrically coupled to the DC power source to drive a load. The circuit adjusts the pulse width of the signal outputted from the power switch driver according to the voltage inputted to the DC power source. Accordingly, the circuit can maintain a fixed input voltage received by the fluorescent tube. Thus, the high input voltage but low output phenomenon can be avoided.

Abstract translation: 提供了一种脉宽调制逆变器电路。 该电路包括电源开关驱动器，电源开关，变压器单元，反馈检测器单元和电压控制振荡器。 电路电连接到直流电源以驱动负载。 该电路根据输入到DC电源的电压来调整从电源开关驱动器输出的信号的脉冲宽度。 因此，电路可以保持由荧光管接收的固定的输入电压。 因此，可以避免高输入电压但低输出现象。

公开(公告)号：US07973330B2

公开(公告)日：2011-07-05

申请号：US12510255

申请日：2009-07-27

Applicant: Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

Inventor： Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

IPC: H01L33/00

CPC classification number: H01L33/0079

Abstract: A substrate-free light emitting diode (LED) including an epitaxy layer, a conductive supporting layer, and a first contact pad is provided. The epitaxy layer includes a first type doped semiconductor layer, a light emitting layer, and a second type doped semiconductor layer. The light emitting layer is disposed on the first type doped semiconductor layer, and a portion of the first type doped semiconductor layer is exposed. The second type doped semiconductor layer and the conductive supporting layer are sequentially disposed on the second type doped semiconductor layer. The first contact pad is disposed on the exposed first type doped semiconductor layer and electrically connected thereto. The first contact pad and the conductive supporting layer serving as an electrode are disposed on the same side of the epitaxy layer to avoid the light shielding effects of the electrode to improve the front light emitting efficiency of the LED.

Abstract translation: 提供了包括外延层，导电支撑层和第一接触焊盘的无基板的发光二极管（LED）。 外延层包括第一掺杂半导体层，发光层和第二掺杂半导体层。 发光层设置在第一掺杂半导体层上，第一掺杂半导体层的一部分露出。 第二类掺杂半导体层和导电支撑层依次设置在第二掺杂半导体层上。 第一接触焊盘设置在暴露的第一型掺杂半导体层上并与其电连接。 用作电极的第一接触焊盘和导电支撑层设置在外延层的同一侧，以避免电极的遮光效应，以提高LED的前发光效率。

公开(公告)号：US20090283750A1

公开(公告)日：2009-11-19

申请号：US12510255

申请日：2009-07-27

Applicant: Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

Inventor： Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

IPC: H01L33/00

CPC classification number: H01L33/0079

Abstract: A substrate-free light emitting diode (LED) including an epitaxy layer, a conductive supporting layer, and a first contact pad is provided. The epitaxy layer includes a first type doped semiconductor layer, a light emitting layer, and a second type doped semiconductor layer. The light emitting layer is disposed on the first type doped semiconductor layer, and a portion of the first type doped semiconductor layer is exposed. The second type doped semiconductor layer and the conductive supporting layer are sequentially disposed on the second type doped semiconductor layer. The first contact pad is disposed on the exposed first type doped semiconductor layer and electrically connected thereto. The first contact pad and the conductive supporting layer serving as an electrode are disposed on the same side of the epitaxy layer to avoid the light shielding effects of the electrode to improve the front light emitting efficiency of the LED.

Abstract translation: 提供了包括外延层，导电支撑层和第一接触焊盘的无基板的发光二极管（LED）。 外延层包括第一掺杂半导体层，发光层和第二掺杂半导体层。 发光层设置在第一掺杂半导体层上，第一掺杂半导体层的一部分露出。 第二类掺杂半导体层和导电支撑层依次设置在第二掺杂半导体层上。 第一接触焊盘设置在暴露的第一型掺杂半导体层上并与其电连接。 用作电极的第一接触焊盘和导电支撑层设置在外延层的同一侧，以避免电极的遮光效应，以提高LED的前发光效率。

公开(公告)号：US07381995B2

公开(公告)日：2008-06-03

申请号：US11081319

申请日：2005-03-16

Applicant: Ra-Min Tain ,  Shyi-Ching Liau ,  Chien-Cheng Yang

Inventor： Ra-Min Tain ,  Shyi-Ching Liau ,  Chien-Cheng Yang

IPC: H01L31/12

CPC classification number: F21K9/00 ,  F21Y2107/30 ,  F21Y2115/10 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Disclosed is a lighting device with flipped side-structure of LEDs, which allows emitted lights to travel in parallel with the mounting surface. Single or plural LED chips are mounted on a substrate with their side surfaces facing the substrate surface. The lighting device can be further combined with optical protrusions on the substrate to form a light module for reflecting and mixing lights emitted from the LED chips. It does not require a conventional wire bonding process. The packaging structure also resolves the heat dissipation problem of the LEDs. Electrostatic discharge protection circuits can be included in the light module if desired. The invention achieves good uniformity and high intensity of the combined lights with desired chromaticity.

Abstract translation: 公开了一种具有翻转的LED侧面结构的照明装置，其允许发射的光与安装表面平行地行进。 单个或多个LED芯片安装在基板上，其侧表面面向基板表面。 照明装置可以进一步与基板上的光学突起组合，以形成用于反射和混合从LED芯片发射的光的光模块。 它不需要常规的引线接合工艺。 封装结构也解决了LED散热问题。 如果需要，静电放电保护电路可以包括在灯模块中。 本发明实现了具有所需色度的组合光的均匀性和高强度。

公开(公告)号：US20110182457A1

公开(公告)日：2011-07-28

申请号：US12973036

申请日：2010-12-20

Applicant: Chiu-Yun Tung ,  Hui-Yin Liang ,  Ju-Mei Tsai ,  Yu-Huan Yen ,  Chien-Cheng Yang ,  Ming-Hung Tsai ,  Shi-Pan Ho

Inventor： Chiu-Yun Tung ,  Hui-Yin Liang ,  Ju-Mei Tsai ,  Yu-Huan Yen ,  Chien-Cheng Yang ,  Ming-Hung Tsai ,  Shi-Pan Ho

IPC: H04R1/10

CPC classification number: H04R1/1041 ,  H04R1/1016

Abstract: An in-ear earphone with a capacitive sensing function is provided. The earphone includes a case, a speaker, a circuit board, and a capacitive sensing unit. The case has an extension tube and an accommodating portion. An ear tip is sleeved on the extension tube. The accommodating portion accommodates the speaker, the circuit board, and the capacitive sensing unit. A sound emitting surface of the speaker faces the extension tube. The circuit board is electrically connected to the speaker, and a sensing chip is disposed on the circuit board. The capacitive sensing unit includes a sensor and a conducting element. The sensor is electrically connected to the sensing chip through the conducting element. When the extension tube is inserted into an ear canal of a user, the sensor returns a sensing signal to the sensing chip, and the sensing chip sends a control signal to control sound output of the speaker.

Abstract translation: 提供具有电容感应功能的入耳式耳机。 耳机包括外壳，扬声器，电路板和电容感测单元。 壳体具有延伸管和容纳部分。 耳尖套在延长管上。 容纳部分容纳扬声器，电路板和电容感测单元。 扬声器的发声表面面向延伸管。 电路板电连接到扬声器，并且感测芯片设置在电路板上。 电容感测单元包括传感器和导电元件。 传感器通过导电元件与传感芯片电连接。 当延长管插入用户的耳道时，传感器将感测信号返回到感测芯片，感测芯片发送控制信号以控制扬声器的声音输出。

公开(公告)号：US07682855B2

公开(公告)日：2010-03-23

申请号：US11461436

申请日：2006-07-31

Applicant: Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

Inventor： Chien-Cheng Yang ,  Zhi-Cheng Hsiao ,  Gen-Wen Hsieh

IPC: H01L21/00

CPC classification number: H01L33/0079

Abstract: A substrate-free light emitting diode (LED) including an epitaxy layer, a conductive supporting layer, and a first contact pad is provided. The epitaxy layer includes a first type doped semiconductor layer, a light emitting layer, and a second type doped semiconductor layer. The light emitting layer is disposed on the first type doped semiconductor layer, and a portion of the first type doped semiconductor layer is exposed. The second type doped semiconductor layer and the conductive supporting layer are sequentially disposed on the second type doped semiconductor layer. The first contact pad is disposed on the exposed first type doped semiconductor layer and electrically connected thereto. The first contact pad and the conductive supporting layer serving as an electrode are disposed on the same side of the epitaxy layer to avoid the light shielding effects of the electrode to improve the front light emitting efficiency of the LED.

Abstract translation: 提供了包括外延层，导电支撑层和第一接触焊盘的无基板的发光二极管（LED）。 外延层包括第一掺杂半导体层，发光层和第二掺杂半导体层。 发光层设置在第一掺杂半导体层上，第一掺杂半导体层的一部分露出。 第二类掺杂半导体层和导电支撑层依次设置在第二掺杂半导体层上。 第一接触焊盘设置在暴露的第一型掺杂半导体层上并与其电连接。 用作电极的第一接触焊盘和导电支撑层设置在外延层的同一侧，以避免电极的遮光效应，以提高LED的前发光效率。

公开(公告)号：US07098612B2

公开(公告)日：2006-08-29

申请号：US11226938

申请日：2005-09-14

Applicant: Shih-Chung Huang ,  Chien-Cheng Yang ,  Tim Yu

Inventor： Shih-Chung Huang ,  Chien-Cheng Yang ,  Tim Yu

IPC: H05B37/00

CPC classification number: H05B41/2822 ,  H05B41/2824 ,  H05B41/3927

Abstract: A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit wherein one power amplification unit is electrically coupled to another amplification unit, each power amplification unit being electrically coupled to one or more of the lamps, adapted to generate a driving signal, and adapted to send the driving signal to the coupled lamp(s) for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one or more of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.

公开(公告)号：US08400049B2

公开(公告)日：2013-03-19

申请号：US12789652

申请日：2010-05-28

Applicant: Chien-Cheng Yang ,  Win-Yng Wang ,  Hung-Peng Lee

Inventor： Chien-Cheng Yang ,  Win-Yng Wang ,  Hung-Peng Lee

IPC: H03H9/19

CPC classification number: H03H9/19 ,  H01L41/04 ,  H03H9/215

Abstract: A tuning fork quartz crystal resonator has a base and two resonating arms extended in parallel from the same side of the base. Each resonating arm has asymmetric grooves on its upper and bottom surface, and the via-hole to reliably connect the top and bottom electrode. The asymmetric groove design can simplify the manufacturing process and lower the manufacturing cost. The base has continuous concave on both side surfaces and a recess on the main surface. The energy of ultrasonic wave propagating via the base mounting pads into the ceramic package can be reduced. This unique tuning fork quartz crystal resonator can prevent dramatic reduction of the Q value, and retain the outstanding quality of the resonator.

Abstract translation: 音叉石英晶体谐振器具有从基座的同一侧平行延伸的基座和两个谐振臂。 每个谐振臂在其上下表面具有不对称的凹槽，并且通孔可靠地连接顶部和底部电极。 不对称槽设计可以简化制造过程，降低制造成本。 底座在两个侧表面上具有连续的凹面，在主表面上具有凹槽。 可以减少通过基座安装垫传播到陶瓷封装中的超声波的能量。 这种独特的音叉石英晶体谐振器可以防止Q值的显着降低，并保持谐振器的出色品质。