公开(公告)号：US08143797B2

公开(公告)日：2012-03-27

申请号：US13042472

申请日：2011-03-08

Applicant: Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

Inventor： Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

IPC: H05B37/02

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

Abstract: 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.

Abstract translation: 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：US20120068731A1

公开(公告)日：2012-03-22

申请号：US13225565

申请日：2011-09-06

Applicant: Li-Min LEE ,  Chung-Che YU

Inventor： Li-Min LEE ,  Chung-Che YU

IPC: H03K19/003

CPC classification number: H03K19/00361

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110291591A1

公开(公告)日：2011-12-01

申请号：US13115129

申请日：2011-05-25

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

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

IPC: H05B37/02 ,  H02J7/00

CPC classification number: H05B33/0848 ,  H05B33/0815

Abstract: A driving circuit, comprising a power supply, a transistor unit and a feedback control circuit, is disclosed. The power supply is adaptor to provide an electric power to drive a load. The transistor unit comprises at least one load coupling end to couple to the load for adjusting an amount of current flowing through the load. The feedback control circuit controls an amount of the electric power provided by the power supply according to a voltage level of the least one load coupling end. Wherein, the feedback control circuit comprises an error amplifying circuit and a feedback control switch. The error amplifying circuit generates an error amplified signal according to the voltage level of the least one load coupling end, and the feedback control switch is coupled to an output of the error amplifying circuit and is switched between a turn-on state and a turn-off state based on a dimming signal.

Abstract translation: 公开了一种包括电源，晶体管单元和反馈控制电路的驱动电路。 电源是适配器，用于提供驱动负载的电力。 晶体管单元包括至少一个耦合到负载的负载耦合端，用于调节流过负载的电流量。 反馈控制电路根据至少一个负载耦合端的电压电平来控制由电源提供的电力的量。 其中，反馈控制电路包括误差放大电路和反馈控制开关。 误差放大电路根据至少一个负载耦合端的电压电平产生误差放大信号，反馈控制开关耦合到误差放大电路的输出，并在导通状态和转向开关状态之间切换， 基于调光信号的关闭状态。

公开(公告)号：US20110266975A1

公开(公告)日：2011-11-03

申请号：US13089329

申请日：2011-04-19

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

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

IPC: H05B37/02

CPC classification number: H05B41/2828 ,  H05B33/0815 ,  Y02B20/346

Abstract: An illumination controller adapted to control a converting circuit to convert an electric power of a DC input power source to drive a light source is provided. The illumination controller includes a dimming unit and a control unit. The dimming unit receives a dimming signal and correspondingly generates a dimming control signal according to the number of the dimming signal. The control unit controls the electric power provided to the light source by the converting circuit according to the dimming control signal, so as to adjust a brightness of the light source. Furthermore, an illumination driving system is also provided.

Abstract translation: 提供了一种适于控制转换电路以转换DC输入电源的电力以驱动光源的照明控制器。 照明控制器包括调光单元和控制单元。 调光单元接收调光信号，并根据调光信号的数量相应地产生调光控制信号。 控制单元通过转换电路根据调光控制信号控制提供给光源的电力，以便调节光源的亮度。 此外，还提供了一种照明驱动系统。

公开(公告)号：US07977891B2

公开(公告)日：2011-07-12

申请号：US12379841

申请日：2009-03-03

Applicant: Shian-Sung Shiu ,  Chung-Che Yu

Inventor： Shian-Sung Shiu ,  Chung-Che Yu

IPC: G05F1/00

CPC classification number: H05B33/0812 ,  Y02B20/345

Abstract: An LED driving circuit is provided for driving an LED module, comprising a transistor switch and a feedback controller. The transistor switch has a control terminal, a first terminal, and a second terminal. The first terminal is coupled to the LED module and the control terminal receives a control signal for controlling a current passing through the transistor switch. The feedback controller receives a reference voltage and a current detecting signal indicative of the magnitude of the current and generates the control signal accordingly. The feedback controller is connected to a driving power source with level higher than the level of the first terminal of the transistor switch. Hence, the maximum level of an adjustable range of the control signal is higher than the first terminal of the transistor switch.

Abstract translation: 提供LED驱动电路用于驱动LED模块，包括晶体管开关和反馈控制器。 晶体管开关具有控制端子，第一端子和第二端子。 第一端子耦合到LED模块，并且控制端子接收用于控制通过晶体管开关的电流的控制信号。 反馈控制器接收指示电流大小的参考电压和电流检测信号，并相应地产生控制信号。 反馈控制器连接到电平高于晶体管开关的第一端子电平的驱动电源。 因此，控制信号的可调范围的最大电平高于晶体管开关的第一端。

公开(公告)号：US07952296B2

公开(公告)日：2011-05-31

申请号：US12693401

申请日：2010-01-25

Applicant: Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

Inventor： Chung-Che Yu ,  Shih-Chung Huang ,  Chien-Pang Hung ,  Chih-Shun Lee

IPC: H05B37/02

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

Abstract: 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.

Abstract translation: 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：US20110109288A1

公开(公告)日：2011-05-12

申请号：US12891812

申请日：2010-09-28

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

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

IPC: G05F1/00

CPC classification number: H02M3/156

Abstract: A power converting circuit including a converting circuit and a controller is provided. In an embodiemnt of the invention, the inductance of the converting circuit and the operation frequency of the controller can be adjusted according to the power required by the load and/or the size of the inductor current to effectively reduce the switching times and the switching loss of the switch in the converting circuit when the load is light. Accordingly, no matter the load is light or heavy, the efficiency of the power converting circuit can be maintained at a higher standard.

Abstract translation: 提供了包括转换电路和控制器的电力转换电路。 在本发明的实施例中，转换电路的电感和控制器的工作频率可以根据负载所需的功率和/或电感电流的大小进行调节，以有效地减少开关时间和开关损耗 的转换电路中的开关。 因此，无论负载轻或重，都能将电力转换电路的效率维持在更高的标准。

公开(公告)号：US20110089858A1

公开(公告)日：2011-04-21

申请号：US12695451

申请日：2010-01-28

Applicant: Chen-Hsung WANG ,  Chung-Che YU

Inventor： Chen-Hsung WANG ,  Chung-Che YU

IPC: H05B41/36

CPC classification number: H05B33/0827 ,  H05B33/0851

Abstract: A load driving circuit and a multi-load feedback circuit are disclosed. The load driving circuit and the multi-load feedback circuit are adapted to drive an LED module comprising a current balancing circuit for balancing the current flowing through LEDs. The load driving circuit and the multi-load feedback circuit modulate the electric power transmitted by the LED driving apparatus to an LED module according to voltage level(s) of one or more current balancing terminals having insufficient voltage in the current balancing circuit, so the voltage levels of the current balancing terminals are higher than or equal to a predetermined voltage level, further increasing the efficiency thereof.

Abstract translation: 公开了一种负载驱动电路和多负载反馈电路。 负载驱动电路和多负载反馈电路适于驱动包括用于平衡流过LED的电流的电流平衡电路的LED模块。 负载驱动电路和多负载反馈电路根据在电流平衡电路中具有不足的电压的一个或多个电流平衡端子的电压电平将LED驱动装置传输的电力调制到LED模块，因此， 电流平衡端子的电压电平高于或等于预定电压电平，进一步提高其效率。

公开(公告)号：US20110084991A1

公开(公告)日：2011-04-14

申请号：US12969595

申请日：2010-12-16

Applicant: Chung-Che Yu

Inventor： Chung-Che Yu

IPC: G09G5/10 ,  G09G3/36

CPC classification number: H05B41/3927 ,  H05B41/2828 ,  Y02B20/186

Abstract: A multi-lamps LCD panel back-light control circuit is provided, and which includes a control unit, a full bridge switch, a resonance network circuit, a voltage transformer, and a feedback network. The control unit operates in coordinating with the full bridge switch, the resonance network circuit, the voltage transformer and the feedback network so as to use a constant operating frequency and a PWM feedback to control a current of CCFLs. The back-light control circuit is characterized in that different integrated-circuits (ICs) are respectively formed from the control unit including a PWM controller, a triangular wave/clock generator, a ½ frequency divider, and a logic circuit. The different ICs have either a plurality of respective frequency synchronous signal control terminals or a plurality of phase synchronous signal control terminals that are connected to one another so that the different ICs operate respectively either with a same operating frequency or a same phase.

Abstract translation: 提供了一种多灯LCD面板背光控制电路，其包括控制单元，全桥开关，共振网络电路，电压互感器和反馈网络。 控制单元与全桥开关，谐振网络电路，电压互感器和反馈网络协调工作，以便使用恒定的工作频率和PWM反馈来控制CCFL的电流。 背光控制电路的特征在于，从包括PWM控制器，三角波/时钟发生器，½分频器和逻辑电路的控制单元分别形成不同的集成电路（IC）。 不同的IC具有彼此连接的多个相应的频率同步信号控制端子或多个相位同步信号控制端子，使得不同的IC分别以相同的工作频率或相同的相位工作。

公开(公告)号：US20100327828A1

公开(公告)日：2010-12-30

申请号：US12607967

申请日：2009-10-28

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

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

IPC: G05F1/00

CPC classification number: G05F1/573

Abstract: A MOSFET current limiting circuit, a linear voltage regulator, and a voltage converting circuit are provided. A current limiting value of the MOSFET is adjusted with the temperature or the voltage drop across the drain and the source of the MOSFET. Accordingly, it is ensured that the MOSFET operates in the safe operating area in any situation. Therefore, the MOSFET is prevented from being burnt out, and the reliability thereof is also increased.

Abstract translation: 提供了MOSFET限流电路，线性电压调节器和电压转换电路。 通过MOSFET的漏极和源极之间的温度或电压降来调节MOSFET的限流值。 因此，确保MOSFET在任何情况下在安全操作区域中运行。 因此，防止MOSFET被烧毁，并且其可靠性也增加。