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1. 发明授权

US08154223B2 Driving apparatus of light emitting diode and driving method thereof 有权
标题翻译：发光二极管驱动装置及其驱动方法
公开(公告)号：US08154223B2
公开(公告)日：2012-04-10
申请号：US12628233
申请日：2009-12-01
申请人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
发明人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0827
摘要： A driving apparatus of a light emitting diode (LED) and a driving method thereof are provided. In the driving method, when the driving apparatus performs dimming and a duty cycle of a dimming signal is smaller than a predetermination value, outputting time of driving currents are equally allotted in a period, and a magnitude of each driving current is regulated correspondingly. When the driving apparatus performs dimming and the duty cycle of the dimming signal is equal to or greater than the predetermination value, the driving currents are simultaneously output in the period, and the magnitude of each driving current is regulated according to the dimming signal. Therefore, an audio noise and an electromagnetic interference caused by excessive variation of a sum of the driving currents are suppressed.
摘要翻译：提供了一种发光二极管（LED）的驱动装置及其驱动方法。在驱动方法中，当驱动装置进行调光并且调光信号的占空比小于预定值时，驱动电流的输出时间在一段时间内被均等地分配，并且相应地调节每个驱动电流的大小。当驱动装置进行调光并且调光信号的占空比等于或大于预定值时，在该周期内同时输出驱动电流，并且根据调光信号调节每个驱动电流的大小。因此，抑制了由驱动电流之和的过大变化引起的音频噪声和电磁干扰。

2. 发明申请

US20110043114A1 LED Device with Simultaneous Open and Short Detection Function and Method Thereof 有权
标题翻译：具有同时开放和短路检测功能及其方法的LED装置
公开(公告)号：US20110043114A1
公开(公告)日：2011-02-24
申请号：US12647381
申请日：2009-12-24
申请人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
发明人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
IPC分类号： H05B37/02
CPC分类号： H05B37/036 , H05B33/0815 , H05B33/0827 , H05B33/0893
摘要： An LED device with simultaneous open and short detection function includes a plurality of LED strings, a voltage converter, a current driving unit, a loop control unit, an open detector, a short detector and a voltage detector. The open detector and the short detector are utilized for detecting LED open and LED short for the plurality of LED strings, respectively. The voltage detector is coupled to the open detector, the short detector and the voltage converter, and is utilized for generating a reset signal to the short detector according to an output voltage of the voltage converter when the LED open occurs on the plurality of LED strings, so as to initiate the LED short detection for the plurality of LED strings again.
摘要翻译：具有同时开路和短路检测功能的LED装置包括多个LED串，电压转换器，电流驱动单元，环路控制单元，开路检测器，短路检测器和电压检测器。开路检测器和短检测器分别用于检测多个LED串的LED开路和LED短路。电压检测器耦合到开路检测器，短路检测器和电压转换器，并且用于当LED在多个LED串上发生时，根据电压转换器的输出电压产生到短路检测器的复位信号从而再次启动多个LED串的LED短路检测。

3. 发明申请

US20110018450A1 Light Source Driving Device Capable of Dynamically Keeping Constant Current Sink and Related Method 有权
标题翻译：光源驱动装置，能够动态保持恒流槽和相关方法
公开(公告)号：US20110018450A1
公开(公告)日：2011-01-27
申请号：US12629864
申请日：2009-12-02
申请人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
发明人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： A light source driving device for driving a light emitting component is disclosed. The light source driving device includes a voltage converter coupled to the light emitting component for converting an input voltage into an output driving voltage according to a voltage control signal, a dimming unit coupled to the light emitting component for implementing a dimming process according to a dimming signal, a current source coupled to the dimming unit for providing a driving current to drive the light emitting component, and a control unit coupled to the dimming unit and the voltage converter for detecting a dimming state to generate a dimming detection signal and generating a reference voltage according to the dimming detection signal, wherein the control unit controls the voltage converter to generate the output driving voltage so as to driving the light emitting component.
摘要翻译：公开了一种用于驱动发光部件的光源驱动装置。光源驱动装置包括耦合到发光部件的电压转换器，用于根据电压控制信号将输入电压转换成输出驱动电压;耦合到发光部件的调光单元，用于根据调光实现调光过程信号，耦合到调光单元的电流源，用于提供驱动电流以驱动发光部件;以及控制单元，耦合到调光单元和电压转换器，用于检测调光状态以产生调光检测信号并产生参考电压，其中所述控制单元控制所述电压转换器以产生所述输出驱动电压以驱动所述发光部件。

4. 发明授权

US08344661B2 LED device with simultaneous open and short detection function and method thereof 有权
标题翻译：具有同时开，短检测功能的LED装置及其方法
公开(公告)号：US08344661B2
公开(公告)日：2013-01-01
申请号：US12647381
申请日：2009-12-24
申请人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
发明人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang , Ting-Wei Liao
IPC分类号： H05B37/02
CPC分类号： H05B37/036 , H05B33/0815 , H05B33/0827 , H05B33/0893
摘要： An LED device with simultaneous open and short detection function includes a plurality of LED strings, a voltage converter, a current driving unit, a loop control unit, an open detector, a short detector and a voltage detector. The open detector and the short detector are utilized for detecting LED open and LED short for the plurality of LED strings, respectively. The voltage detector is coupled to the open detector, the short detector and the voltage converter, and is utilized for generating a reset signal to the short detector according to an output voltage of the voltage converter when the LED open occurs on the plurality of LED strings, so as to initiate the LED short detection for the plurality of LED strings again.
摘要翻译：具有同时开路和短路检测功能的LED装置包括多个LED串，电压转换器，电流驱动单元，环路控制单元，开路检测器，短路检测器和电压检测器。开路检测器和短检测器分别用于检测多个LED串的LED开路和LED短路。电压检测器耦合到开路检测器，短路检测器和电压转换器，并且用于当LED在多个LED串上发生时，根据电压转换器的输出电压产生到短路检测器的复位信号从而再次启动多个LED串的LED短路检测。

5. 发明申请

US20110037410A1 Control Method Capable of Preventing Flicker Effect and Light Emitting Device Therefore 有权
标题翻译：因此，能够防止闪烁效应和发光装置的控制方法
公开(公告)号：US20110037410A1
公开(公告)日：2011-02-17
申请号：US12625576
申请日：2009-11-25
申请人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
发明人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , H05B33/0815
摘要： A control method capable of preventing flicker effect for a light source module includes detecting variation situations of a driving current passing through the light source module to generate a current detection signal, adjusting a variable reference voltage according to the current detection signal, obtaining a feedback voltage from the light source module, generating a voltage control signal according to the feedback voltage and the variable reference voltage, and generating an output voltage according to the voltage control signal to drive the light source module.
摘要翻译：能够防止光源模块的闪烁效果的控制方法包括检测通过光源模块的驱动电流的变化情况，生成电流检测信号，根据电流检测信号调整可变参考电压，得到反馈电压从光源模块，根据反馈电压和可变参考电压产生电压控制信号，并根据电压控制信号产生输出电压以驱动光源模块。

6. 发明申请

US20110037396A1 LIGHT EMITTING DIODE MODULE AND DRIVING METHOD THEREOF 审中-公开
标题翻译：发光二极管模块及其驱动方法
公开(公告)号：US20110037396A1
公开(公告)日：2011-02-17
申请号：US12603576
申请日：2009-10-21
申请人： Feng-Wei Chien , Tsung-Hau Chang , Chin-Hsun Hsu , Kuo-Ching Hsu
发明人： Feng-Wei Chien , Tsung-Hau Chang , Chin-Hsun Hsu , Kuo-Ching Hsu
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0827 , Y02B20/346
摘要： A light emitting diode module having a plurality of LED strings is provided. The light emitting diode module includes a voltage generating loop, a light tuner, a voltage selector, and a voltage storage and comparison circuit. The voltage generating loop generates a system voltage according to a pulse modulation control signal. The light tuner receives a light tuning signal and turns on or off the LED strings accordingly. The voltage selector selects one of terminal voltages of terminals of the LED strings coupled to the light tuner for generating a selection voltage. The voltage storage and comparison circuit generates an error voltage by comparing the selection voltage and a reference voltage. The voltage storage and comparison circuit stores the error voltage temporarily and provides the temporarily stored error voltage as the pulse modulation control signal.
摘要翻译：提供具有多个LED串的发光二极管模块。发光二极管模块包括电压产生环路，光调谐器，电压选择器和电压存储和比较电路。电压产生环路根据脉冲调制控制信号产生系统电压。光调谐器接收调光信号，并相应地打开或关闭LED串。电压选择器选择耦合到光调谐器的LED串的端子的端子电压中的一个，以产生选择电压。电压存储和比较电路通过比较选择电压和参考电压来产生误差电压。电压存储和比较电路临时存储误差电压，并提供临时存储的误差电压作为脉冲调制控制信号。

7. 发明申请

US20110001434A1 LED Device and Method for Preventing Soft-Start Flicker 有权
标题翻译： LED装置及防止软起动闪烁的方法
公开(公告)号：US20110001434A1
公开(公告)日：2011-01-06
申请号：US12629893
申请日：2009-12-03
申请人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang
发明人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/089
摘要： A light-emitting diode (LED) device for preventing soft-start flicker includes an LED module, a voltage converter, a variable current load and a loop control unit. The loop control unit is coupled to the LED module, the voltage converter and the variable current load, and includes a soft-start unit and a dimming control unit. The soft-start unit is utilized for activating a soft-start mechanism of the voltage converter when power of the LED device is turned on. The dimming control unit is utilized for controlling the variable current load to progressively increase a load current of the LED module to a target value and to maintain the load current on the target value until the soft-start mechanism is completed, so as to perform dimming control on the LED module.
摘要翻译：用于防止软启动闪烁的发光二极管（LED）装置包括LED模块，电压转换器，可变电流负载和环路控制单元。环路控制单元耦合到LED模块，电压转换器和可变电流负载，并且包括软启动单元和调光控制单元。软启动单元用于在LED器件的电源接通时激活电压转换器的软启动机构。调光控制单元用于控制可变电流负载，逐渐将LED模块的负载电流增加到目标值，并将负载电流保持在目标值上直到软启动机构完成，以进行调光控制LED模块。

8. 发明授权

US08461883B2 Frequency generator 有权
标题翻译：频率发生器
公开(公告)号：US08461883B2
公开(公告)日：2013-06-11
申请号：US12773853
申请日：2010-05-05
申请人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang
发明人： Kuo-Ching Hsu , Chin-Hsun Hsu , Tsung-Hau Chang
IPC分类号： H03B19/00
CPC分类号： G06F1/08 , H03K4/02
摘要： A frequency generator is used for generating a frequency within a frequency range. The frequency generator includes a variable current source, a voltage drop generation unit, a voltage source, a detection unit, a conversion unit, and an oscillating circuit. The variable current source is used for outputting a current according to a control signal. The voltage drop generation unit is used for generating a voltage drop according to the current. The voltage source is used for outputting a voltage range. The detection unit is used for outputting the control signal to the variable current source according to a relationship between the voltage drop and the voltage range. The conversion unit is used for outputting a digital code according to the relationship between the voltage drop and the voltage range. The oscillator circuit is used for generating the frequency according to the digital code.
摘要翻译：频率发生器用于产生频率范围内的频率。频率发生器包括可变电流源，电压降产生单元，电压源，检测单元，转换单元和振荡电路。可变电流源用于根据控制信号输出电流。电压降产生单元用于根据电流产生电压降。电压源用于输出电压范围。检测单元用于根据电压降与电压范围之间的关系将控制信号输出到可变电流源。转换单元用于根据电压降和电压范围之间的关系输出数字代码。振荡电路用于根据数字码产生频率。

9. 发明授权

US08169156B2 Control method capable of preventing flicker effect and light emitting device thereof 有权
标题翻译：能够防止闪烁效果的控制方法及其发光装置
公开(公告)号：US08169156B2
公开(公告)日：2012-05-01
申请号：US12625576
申请日：2009-11-25
申请人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
发明人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
IPC分类号： G05F1/00
CPC分类号： H05B33/0827 , H05B33/0815
摘要： A control method capable of preventing flicker effect for a light source module includes detecting variation situations of a driving current passing through the light source module to generate a current detection signal, adjusting a variable reference voltage according to the current detection signal, obtaining a feedback voltage from the light source module, generating a voltage control signal according to the feedback voltage and the variable reference voltage, and generating an output voltage according to the voltage control signal to drive the light source module.
摘要翻译：能够防止光源模块的闪烁效果的控制方法包括检测通过光源模块的驱动电流的变化情况，生成电流检测信号，根据电流检测信号调整可变参考电压，得到反馈电压从光源模块，根据反馈电压和可变参考电压产生电压控制信号，并根据电压控制信号产生输出电压以驱动光源模块。

10. 发明授权

US08134304B2 Light source driving device capable of dynamically keeping constant current sink and related method 有权
标题翻译：能够动态保持恒流槽和相关方法的光源驱动装置
公开(公告)号：US08134304B2
公开(公告)日：2012-03-13
申请号：US12629864
申请日：2009-12-02
申请人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
发明人： Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
IPC分类号： G05F1/00
CPC分类号： H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： A light source driving device for driving a light emitting component is disclosed. The light source driving device includes a voltage converter coupled to the light emitting component for converting an input voltage into an output driving voltage according to a voltage control signal, a dimming unit coupled to the light emitting component for implementing a dimming process according to a dimming signal, a current source coupled to the dimming unit for providing a driving current to drive the light emitting component, and a control unit coupled to the dimming unit and the voltage converter for detecting a dimming state to generate a dimming detection signal and generating a reference voltage according to the dimming detection signal, wherein the control unit controls the voltage converter to generate the output driving voltage so as to driving the light emitting component.
摘要翻译：公开了一种用于驱动发光部件的光源驱动装置。光源驱动装置包括耦合到发光部件的电压转换器，用于根据电压控制信号将输入电压转换成输出驱动电压;耦合到发光部件的调光单元，用于根据调光实现调光过程信号，耦合到调光单元的电流源，用于提供驱动电流以驱动发光部件;以及控制单元，耦合到调光单元和电压转换器，用于检测调光状态以产生调光检测信号并产生参考电压，其中所述控制单元控制所述电压转换器以产生所述输出驱动电压以驱动所述发光部件。

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