公开(公告)号：US08143797B2

公开(公告)日：2012-03-27

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： H05B37/02

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。

公开(公告)号：US07952296B2

公开(公告)日：2011-05-31

申请号：US12693401

申请日：2010-01-25

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 feedback circuit is utilized in a DC/AC inverter having a first power switch and a second power switch for driving a fluorescent lamp. The feedback circuit includes a protection circuit for disabling the first power switch and the second power switch when no fluorescent lamp is electrically connected, a first capacitor having a first terminal electrically connected to an output of the DC/AC inverter, a second capacitor having a first terminal electrically connected to a ground, and a second terminal electrically connected to a second terminal of the first capacitor, a diode having an anode electrically connected to the second terminals of the first and second capacitors, and a cathode electrically connected to the protection circuit, and a first resistor having a first terminal electrically connected to the cathode of the diode, and a second terminal electrically connected to the ground.

摘要翻译： 在具有用于驱动荧光灯的第一电源开关和第二电源开关的DC / AC逆变器中采用反馈电路。 所述反馈电路包括用于在没有荧光灯电连接时禁用所述第一电源开关和所述第二电源开关的保护电路，具有电连接到所述DC / AC逆变器的输出的第一端子的第一电容器，具有 电连接到地的第一端子和与第一电容器的第二端子电连接的第二端子，具有电连接到第一和第二电容器的第二端子的阳极的二极管，以及电连接到保护电路的阴极 以及第一电阻器，其具有电连接到二极管的阴极的第一端子和电连接到地的第二端子。

公开(公告)号：US20100072509A1

公开(公告)日：2010-03-25

申请号：US12585715

申请日：2009-09-23

申请人： Shih-Chung Huang ,  Chen-Hsiu Lin ,  Meng-Sung Chou

发明人： Shih-Chung Huang ,  Chen-Hsiu Lin ,  Meng-Sung Chou

IPC分类号： H01L33/00 ,  H01L23/495

CPC分类号： H01L23/49537 ,  H01L24/48 ,  H01L33/483 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/12041 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： A unitary lead frame assembly having a plurality of lead frame sets each comprises a first lead frame unit. The first lead frame unit has a pair of first and second frame portions extending along a first direction and spaced apart from each other along a second direction different from the first direction. The lead frame set further comprises at least two second lead frame units disposed between the first and second frame portions and spaced apart from each other along the second direction. Each of the second lead frame units cooperates with the first lead frame unit to define at least one first die-bonding area therebetween.

摘要翻译： 具有多个引线框组的单一引线框架组件每个包括第一引线框架单元。 第一引线框架单元具有沿着第一方向延伸并沿着不同于第一方向的第二方向彼此间隔开的一对第一和第二框架部分。 引线框组还包括设置在第一和第二框架部分之间并沿着第二方向彼此间隔开的至少两个第二引线框架单元。 每个第二引线框架单元与第一引线框架单元配合以限定其间的至少一个第一管芯接合区域。

公开(公告)号：US20070236155A1

公开(公告)日：2007-10-11

申请号：US11462721

申请日：2006-08-07

申请人： Chin-Fa Kao ,  Shih-Chung Huang ,  Chung-Che Yu

发明人： Chin-Fa Kao ,  Shih-Chung Huang ,  Chung-Che Yu

IPC分类号： H05B41/36 ,  H05B41/24

CPC分类号： H05B33/0884 ,  H05B33/0815 ,  Y02B20/346

摘要： A DC/DC converter comprises a switch device, an inductor, a rectifying device and a capacitor. Switch device has a first terminal coupled to a DC power supply and a control terminal receiving a control signal. Inductor has a first terminal electrically coupled to a second terminal of switch device. Rectifying device has a first terminal electrically coupled to the first terminal of inductor. Capacitor has a first terminal electrically coupled to a second terminal of rectifying device, a second terminal electrically coupled to a second terminal of inductor. Switch device is switched between a first and second states based on control signals, the power of DC power supply is stored into inductor when switch device is in the first state; the power stored in inductor is released and provided to capacitor and LED module through rectifying device when switch device is in the second state.

摘要翻译： DC / DC转换器包括开关装置，电感器，整流装置和电容器。 开关装置具有耦合到DC电源的第一端子和接收控制信号的控制端子。 电感器具有电耦合到开关装置的第二端子的第一端子。 整流装置具有电耦合到电感器的第一端子的第一端子。 电容器具有电耦合到整流装置的第二端子的第一端子，电耦合到电感器的第二端子的第二端子。 开关器件基于控制信号在第一和第二状态之间切换，当开关器件处于第一状态时，直流电源的功率被存储到电感器中; 当开关器件处于第二状态时，存储在电感器中的功率被释放并通过整流器件提供给电容器和LED模块。

公开(公告)号：US20070114949A1

公开(公告)日：2007-05-24

申请号：US11623326

申请日：2007-01-16

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： H05B41/24

CPC分类号： H05B33/0818 ,  H05B33/0845 ,  Y02B20/346

摘要： A pulse width modulation (PWM) illumination control circuit with 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. The duty cycle or frequency of the illumination control pulse signal varies within a predetermined scope for controlling a DC/DC converter to drive the light-emitting diode so that 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或频率在用于控制DC / DC转换器驱动发光二极管的预定范围内变化，使得PWM照明控制电路的总体视觉噪声水平提高。

公开(公告)号：US20070052370A1

公开(公告)日：2007-03-08

申请号：US11210534

申请日：2005-08-24

申请人： Shih-Chung Huang

发明人： Shih-Chung Huang

IPC分类号： H05B41/24

CPC分类号： H05B41/2822 ,  H05B41/282 ,  Y02B20/183

摘要： A multi-lamp driving system for driving a first lamp and a second lamp includes a power supply circuit, and first-stage transformers. The power supply circuit is used for supplying the first and second lamps with an AC power, and first-stage transformers coupled to the power supply circuit for performing an impedance-matching function to balance lamp currents and deliver evenly distributed current to each lamp in the multi-lamp system so that each lamp provides approximately same amount of luminance. The first-stage transformers includes a first transformer have a primary side coupled to the power supply circuit and a secondary side coupled to the first lamp, and a second transformer have a primary side coupled to the first transformer and a secondary side coupled to the second lamp.

摘要翻译： 用于驱动第一灯和第二灯的多灯驱动系统包括电源电路和第一级变压器。 电源电路用于向第一和第二灯提供AC电力;以及第一级变压器，耦合到电源电路，用于执行阻抗匹配功能，以平衡灯电流，并将均匀分布的电流输送到 多灯系统，使得每个灯提供大致相同量的亮度。 第一级变压器包括具有耦合到电源电路的初级侧的第一变压器和耦合到第一灯的次级侧，并且第二变压器具有耦合到第一变压器的初级侧和耦合到第二变压器的次级侧 灯。

公开(公告)号：US07106009B2

公开(公告)日：2006-09-12

申请号：US10904546

申请日：2004-11-16

申请人： Shih-Chung Huang

发明人： Shih-Chung Huang

IPC分类号： H05B37/02

CPC分类号： H05B41/36 ,  H05B41/2855

摘要： A lamp duplexing protection apparatus comprises a first lamp module and a second lamp module. The first lamp module outputs a first decision signal according to whether the first lamp operates normally. The second lamp module outputs a second decision signal according to an operating status of the second lamp. The first lamp module determines whether to supply power to the first lamp according to the second decision signal. The second lamp module determines whether to supply power to the second lamp according to the first decision signal.

摘要翻译： 灯双面保护装置包括第一灯模块和第二灯模块。 第一灯模块根据第一灯是否正常工作来输出第一判定信号。 第二灯模块根据第二灯的运行状态输出第二判定信号。 第一灯模块根据第二判定信号确定是否向第一灯供电。 第二灯模块根据第一判定信号确定是否向第二灯供电。

公开(公告)号：US20060119286A1

公开(公告)日：2006-06-08

申请号：US11006258

申请日：2004-12-06

申请人： Shih-Chung Huang ,  Tzu-Ming Yu

发明人： Shih-Chung Huang ,  Tzu-Ming Yu

IPC分类号： H05B41/36 ,  H05B39/04

CPC分类号： H05B41/2822

摘要： A lamp driving system includes a transformer, a first impedance network coupled in series to a second impedance network, and a first load coupled in series to a second load. The second impedance network has a larger impedance value with respect to the first impedance network and the first and second impedance networks coupled in parallel to a secondary side of the transformer. The first load is coupled in parallel to the first impedance network and a series of the second load and a blocking impedance network is coupled in parallel to the second impedance network, wherein the larger impedance value of the second impedance network compared to the first impedance network causes the second load to operate before the first load, and the blocking impedance network is adjusted to achieve the current balance of the first load and the second load by changing an impedance value of the blocking impedance network.

摘要翻译： 灯驱动系统包括变压器，与第二阻抗网络串联耦合的第一阻抗网络，以及与第二负载串联耦合的第一负载。 第二阻抗网络相对于第一阻抗网络具有较大的阻抗值，并且第一和第二阻抗网络并联耦合到变压器的次级侧。 第一负载与第一阻抗网络并联耦合，并且一系列第二负载和阻塞阻抗网络并联耦合到第二阻抗网络，其中第二阻抗网络与第一阻抗网络相比较大的阻抗值 使得第二负载在第一负载之前操作，并且通过改变阻塞阻抗网络的阻抗值来调整阻塞阻抗网络以实现第一负载和第二负载的电流平衡。

公开(公告)号：US08558469B2

公开(公告)日：2013-10-15

申请号：US13107948

申请日：2011-05-15

申请人： Shih-Chung Huang ,  Kuang-Yu Jung

发明人： Shih-Chung Huang ,  Kuang-Yu Jung

IPC分类号： H05B37/02 ,  H05B41/16

CPC分类号： H05B41/16 ,  H05B41/2828 ,  H05B41/2853

摘要： An apparatus and a method for driving a fluorescent lamp are provided. The apparatus submitted by the present invention includes a power switching circuit, an LC resonator and an automatic frequency tracing circuit. The power switching circuit is coupled between an input voltage and a ground potential, and is used for switching and outputting the input voltage and the ground potential in response to a ramp signal and a comparison voltage so as to generate a square signal. The LC resonator is used for receiving and converting the square signal to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is used for generating and adjusting the ramp signal according to a feedback signal related to the sinusoidal driving signal, so as to make a frequency of the sinusoidal driving signal automatically following a resonant frequency of the LC resonator.

摘要翻译： 提供了用于驱动荧光灯的装置和方法。 本发明提供的装置包括功率开关电路，LC谐振器和自动频率跟踪电路。 功率开关电路耦合在输入电压和接地电位之间，并且用于响应于斜坡信号和比较电压来切换和输出输入电压和接地电位，以产生平方信号。 LC谐振器用于接收和转换平方信号以产生用于驱动荧光灯的正弦驱动信号。 自动频率跟踪电路用于根据与正弦驱动信号相关的反馈信号产生和调整斜坡信号，以使正弦驱动信号的频率自动跟随LC谐振器的谐振频率。

公开(公告)号：US20130015769A1

公开(公告)日：2013-01-17

申请号：US13483003

申请日：2012-05-29

申请人： Kuang-Yu Jung ,  Shih-Chung Huang

发明人： Kuang-Yu Jung ,  Shih-Chung Huang

IPC分类号： H05B41/36

CPC分类号： H05B41/36 ,  H05B41/2828

摘要： An apparatus for driving a fluorescent lamp is provided. The provided apparatus includes a power switching circuit, an LC resonator and an automatic frequency tracing circuit. The power switching circuit is coupled between an input voltage and a ground potential, and configured for switching and outputting the input voltage and the ground potential in response to two output signals with a phase difference of 180 degrees so as to generate a square signal. The LC resonator is configured for receiving and converting the square signal, so as to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is configured for generating and adjusting the two output signals according to a current feedback signal relating to the sinusoidal driving signal, so as to make the frequency of the sinusoidal driving signal automatically follow the resonant frequency of the LC resonator.

摘要翻译： 提供一种用于驱动荧光灯的装置。 所提供的装置包括功率开关电路，LC谐振器和自动频率跟踪电路。 功率开关电路耦合在输入电压和接地电位之间，并且被配置为响应于具有180度的相位差的两个输出信号来切换和输出输入电压和接地电位，以便产生平方信号。 LC谐振器被配置为接收和转换平方信号，以便产生用于驱动荧光灯的正弦驱动信号。 自动频率跟踪电路被配置为根据与正弦驱动信号相关的电流反馈信号来产生和调整两个输出信号，以使正弦驱动信号的频率自动跟随LC谐振器的谐振频率。