公开(公告)号：US20070145906A1

公开(公告)日：2007-06-28

申请号：US11314000

申请日：2005-12-22

Applicant: Chin-Wen Chou ,  Ying-Nan Cheng ,  Ying-Chang Cheng ,  Chin-Biau Chung

Inventor： Chin-Wen Chou ,  Ying-Nan Cheng ,  Ying-Chang Cheng ,  Chin-Biau Chung

IPC: H05B39/04

CPC classification number: H05B41/36

Abstract: A backlight module actuation method aims to modulate a unsaturated luminance cycle in a dimming cycle for a backlight module in the condition of a saturated luminance. An oscillation amplitude time series of the duty cycle of a transformer at the rear end is set according to the dimming cycle to form a switch kinetic energy in the unsaturated luminance cycle. The switch kinetic energy can eliminate the parasite capacitance generated when the backlight module is in the condition of the saturated luminance.

Abstract translation: 背光模块致动方法旨在在饱和亮度的条件下调制用于背光模块的调光周期中的不饱和亮度周期。 根据调光周期设置后端变压器的占空比的振荡幅度时间序列，以在不饱和亮度周期中形成开关动能。 开关动能可以消除背光模块处于饱和亮度条件下产生的寄生电容。

公开(公告)号：US07719202B2

公开(公告)日：2010-05-18

申请号：US11892899

申请日：2007-08-28

Applicant: Ying-Chang Cheng ,  Shih-Hung Liu

Inventor： Ying-Chang Cheng ,  Shih-Hung Liu

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  Y02B20/346

Abstract: A LED driving circuit mainly includes a commutation unit to transform an AC input cycle signal to a DC cycle signal, a switch unit which divides a driving power signal output to a LED and has a duty voltage value, a valley filled power factor correction circuit to receive the AC input cycle signal and stop conduction of the commutation unit when the voltage value of the AC input cycle signal is lower than a cutoff voltage value, and a piezoelectric inverter to receive the driving power signal of the switch unit and regulate the signal to an AC modulated power signal within a duty range of the LED to drive the LED to emit light.

Abstract translation: LED驱动电路主要包括将AC输入周期信号变换为DC周期信号的换向单元，将输出到LED的驱动功率信号除以占空比电压值的开关单元，谷值充电功率因数校正电路， 当AC输入周期信号的电压值低于截止电压值时，接收交流输入周期信号并停止换向单元的导通;以及压电逆变器，接收开关单元的驱动电力信号并调节信号 在LED的占空比范围内的AC调制功率信号，以驱动LED发光。

公开(公告)号：US07558086B2

公开(公告)日：2009-07-07

申请号：US11476153

申请日：2006-06-28

Applicant: Ying-Chang Cheng

Inventor： Ying-Chang Cheng

IPC: H02J3/00 ,  H02H7/122

CPC classification number: H02M1/08

Abstract: An inverter control circuit with a resonant frequency modulation function provides a control circuit module that can modulate different resonant frequencies externally to fit loads of different modes without changing the inverter components such as a voltage transformer or redesigning the circuit layout. The RC oscillation circuit of a resonant frequency controller of the invention includes several separate resistors, and the separate resistors of the RC oscillation circuit are coupled to at least one switcher to form an open circuit or a closed circuit to determine the total resistance of the RC oscillation circuit for modulating different resonant frequencies.

Abstract translation: 具有谐振频率调制功能的逆变器控制电路提供了一种控制电路模块，其可以外部调制不同的谐振频率以适应不同模式的负载，而不改变诸如变压器的逆变器部件或重新设计电路布局。 本发明的谐振频率控制器的RC振荡电路包括几个单独的电阻器，并且RC振荡电路的分立电阻器耦合到至少一个开关器以形成开路或闭合电路以确定RC的总电阻 用于调制不同谐振频率的振荡电路。

公开(公告)号：US20090045755A1

公开(公告)日：2009-02-19

申请号：US11889551

申请日：2007-08-14

Applicant: Ying-Chang Cheng ,  Chin-Biau Chung

Inventor： Ying-Chang Cheng ,  Chin-Biau Chung

IPC: H05B41/36 ,  H01L41/00

CPC classification number: H05B41/282

Abstract: An improved driving circuit for piezoelectric lamps includes a power switch unit and at least one piezoelectric transformer. The power switch unit is connected to a power source. ON/OFF of the power switch unit controls power amount transmitted to the piezoelectric transformer. The piezoelectric transformer transforms the power and drives at least one load. Operation of the power switch unit is controlled by a duty cycle signal generated by a pulse modulation unit. The pulse modulation unit is connected to a buffer unit which generates a time series at start time to suppress instant output of the piezoelectric transformer, thereby to improve the problem of voltage surge at the start time happened to the conventional piezoelectric transformers.

公开(公告)号：US07436128B2

公开(公告)日：2008-10-14

申请号：US11584595

申请日：2006-10-23

Applicant: Ying-Chang Cheng ,  Chin-Biau Chung

Inventor： Ying-Chang Cheng ,  Chin-Biau Chung

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  H05B41/2825 ,  Y02B20/346

Abstract: A driving circuit for hot cathode fluorescent lamps aims to filter out signals with a voltage value lower than a duty voltage value of a switch unit through a commutation unit and a valley filled power correction circuit to prevent power from accumulating and the switch unit from being pierced.

公开(公告)号：US20080122366A1

公开(公告)日：2008-05-29

申请号：US11592217

申请日：2006-11-03

Applicant: Ying-Chang Cheng ,  Chin-Biau Chung

Inventor： Ying-Chang Cheng ,  Chin-Biau Chung

IPC: H05B37/04

CPC classification number: H05B41/282 ,  Y02B20/183

Abstract: A backup architecture for a backlight module comprises a first power system and a second power system, each having an enable mode and a disable mode; and a sensor unit, electrically connected to the first and the second power systems. In the enable mode, the first power system or the second power system is enabled to drive the backlight module to emit light. In the disable mode, the first power system or the second power system is disabled and stops driving the backlight module. The first and the second power systems are interconnected in parallel. When one of the first power system and the second power system enters into the enable mode, the other enters into the disable mode. The sensor unit acquires the working signals of the first and the second power systems and monitors whether the first power system or the second power system is in an abnormal state.

Abstract translation: 用于背光模块的备用架构包括第一电力系统和第二电力系统，每个具有使能模式和禁用模式; 以及电连接到第一和第二电力系统的传感器单元。 在使能模式下，第一电力系统或第二电力系统被使能以驱动背光模块发光。 在禁用模式下，第一电源系统或第二电源系统被禁用，并停止驱动背光模块。 第一和第二电力系统并联连接。 当第一个电力系统和第二个电力系统中的一个进入启用模式时，另一个进入禁用模式。 传感器单元获取第一和第二电力系统的工作信号，并监视第一电力系统或第二电力系统是否处于异常状态。

公开(公告)号：US20080109666A1

公开(公告)日：2008-05-08

申请号：US11593111

申请日：2006-11-06

Applicant: Ying-Chang Cheng ,  Chin-Biau Chung

Inventor： Ying-Chang Cheng ,  Chin-Biau Chung

IPC: G06F1/00

CPC classification number: H05B41/3927

Abstract: An inverter control circuit is used to control a switch and a transformer in front of a light-emitting unit and then adjust the driving power for the light-emitting unit and modify the luminant state of the light-emitting unit and comprises: a first control unit and a second control unit both having equivalent electronic elements. The first control unit and the second control unit have a signal generator and a signal synthesizer circuit. According to a signal fed back by the light-emitting unit and a dimming signal, the first signal generator outputs first working signals via the signal synthesizer circuit of the first control unit to determine the turn-on time of the switch. According to the first working signals and via the signal synthesizer circuit of the second control unit, the second signal generator outputs second working signals to the switch to determine the resonance frequency of the transformer.

Abstract translation: 逆变器控制电路用于控制发光单元前面的开关和变压器，然后调整发光单元的驱动功率并改变发光单元的发光体状态，包括：第一控制 单元和具有等效电子元件的第二控制单元。 第一控制单元和第二控制单元具有信号发生器和信号合成器电路。 根据由发光单元反馈的信号和调光信号，第一信号发生器经由第一控制单元的信号合成器电路输出第一工作信号，以确定开关的接通时间。 根据第一工作信号并通过第二控制单元的信号合成器电路，第二信号发生器向开关输出第二工作信号以确定变压器的谐振频率。

公开(公告)号：US20080093999A1

公开(公告)日：2008-04-24

申请号：US11892899

申请日：2007-08-28

Applicant: Ying-Chang Cheng ,  Shih-Hung Liu

Inventor： Ying-Chang Cheng ,  Shih-Hung Liu

IPC: H05B41/14

CPC classification number: H05B33/0818 ,  Y02B20/346

Abstract: A LED driving circuit mainly includes a commutation unit to transform an AC input cycle signal to a DC cycle signal, a switch unit which divides a driving power signal output to a LED and has a duty voltage value, a valley filled power factor correction circuit to receive the AC input cycle signal and stop conduction of the commutation unit when the voltage value of the AC input cycle signal is lower than a cutoff voltage value, and a piezoelectric inverter to receive the driving power signal of the switch unit and regulate the signal to an AC modulated power signal within a duty range of the LED to drive the LED to emit light.

Abstract translation: LED驱动电路主要包括将AC输入周期信号变换为DC周期信号的换向单元，将输出到LED的驱动功率信号除以占空比电压值的开关单元，谷值充电功率因数校正电路， 当AC输入周期信号的电压值低于截止电压值时，接收交流输入周期信号并停止换向单元的导通;以及压电逆变器，接收开关单元的驱动电力信号并调节信号 在LED的占空比范围内的AC调制功率信号，以驱动LED发光。

公开(公告)号：US20070281571A1

公开(公告)日：2007-12-06

申请号：US11443215

申请日：2006-05-31

Applicant: Ying-Chang Cheng

Inventor： Ying-Chang Cheng

IPC: H01J9/44

CPC classification number: H05B41/2858

Abstract: A control method for pre-warning an aging electric discharge lamp includes the steps of determining a performance parameter of an electric discharge lamp, inputting the performance parameter into an arithmetic logic unit as a standard value of the electric discharge lamp, using a detector to detect an operating performance parameter of the electric discharge lamp, and comparing a performance parameter with the operating performance parameter by the arithmetic logic unit, and if the operating performance parameter matches an aging state of the performance parameter set in the arithmetic logic unit, then the arithmetic logic unit will output an aging signal of the electric discharge lamp as a warning, and thus users can change the aging electric discharge lamp before the electric discharge lamp breaks down.

Abstract translation: 一种用于预警老化放电灯的控制方法包括以下步骤：使用检测器检测放电灯的性能参数，将性能参数输入到算术逻辑单元中作为放电灯的标准值; 放电灯的操作性能参数，以及通过算术逻辑单元将性能参数与操作性能参数进行比较，并且如果操作性能参数与算术逻辑单元中设置的性能参数的老化状态相匹配，则算术 逻辑单元将作为警告输出放电灯的老化信号，因此用户可以在放电灯故障之前改变老化的放电灯。

公开(公告)号：US07786676B2

公开(公告)日：2010-08-31

申请号：US12106157

申请日：2008-04-18

Applicant: Ying-Chang Cheng ,  Shih-Hung Liu

Inventor： Ying-Chang Cheng ,  Shih-Hung Liu

IPC: H01J7/44 ,  H01L41/00

CPC classification number: G09G3/14 ,  G09G2310/0272 ,  G09G2330/021 ,  G09G2330/045 ,  H05B33/0809 ,  H05B33/089

Abstract: The present invention discloses an LED driver structure, which obtains input power coming from a power source to generate a constant-current power to drive a plurality of LEDs, and which comprises: a plurality of diode groups connected in parallel, a first piezoelectric conversion unit and a second piezoelectric conversion unit respectively arranged at both sides of the diode groups. The first and second piezoelectric conversion units receive the input power and opposite-phase convert the input power into driving powers to drive the diode groups. Among the plurality of diode groups, at least one diode group is formed of a plurality of LEDs. Each of the first and second piezoelectric conversion units has a piezoelectric inverter, which can easily achieve an impedance matching and a constant-current power to drive LEDs via a piezoelectric effect. Besides, the present invention also has the advantage of cost efficiency.

Abstract translation: 本发明公开了一种LED驱动器结构，其获得来自电源的输入电力以产生用于驱动多个LED的恒定电流，并且包括：并联连接的多个二极管组，第一压电转换单元 以及分别布置在二极管组两侧的第二压电转换单元。 第一和第二压电转换单元接收输入功率并且将相位相位转换成驱动功率以驱动二极管组。 在多个二极管组中，至少一个二极管组由多个LED形成。 第一压电转换单元和第二压电转换单元中的每一个具有压电逆变器，其可以容易地实现阻抗匹配和通过压电效应驱动LED的恒流电力。 此外，本发明还具有成本效益的优点。