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1. 发明授权

US07626528B2 Digital to analog converter with high driving capability 有权
标题翻译：具有高驱动能力的数模转换器
公开(公告)号：US07626528B2
公开(公告)日：2009-12-01
申请号：US11776548
申请日：2007-07-11
申请人： Tsung-Hau Chang , Kuang-Feng Sung
发明人： Tsung-Hau Chang , Kuang-Feng Sung
IPC分类号： H03M1/66
CPC分类号： H03M1/76
摘要： A digital-to-analog converter with high driving capability includes a voltage generator for generating voltages, a voltage division circuit coupled to the voltage generator for outputting a plurality of reference voltages according to voltages generated by the voltage generator, a decode unit for decoding a digital signal, a switch circuit coupled to the voltage division circuit and the decode unit for switching to output one of the plurality of reference voltages, and a current generator coupled to the voltage division circuit for generating currents to the voltage division circuit.
摘要翻译：具有高驱动能力的数模转换器包括用于产生电压的电压发生器，耦合到电压发生器的分压电路，用于根据由电压发生器产生的电压输出多个参考电压;解码单元，数字信号，耦合到分压电路的开关电路和用于切换以输出多个参考电压中的一个的解码单元;以及耦合到分压电路的电流发生器，用于向分压电路产生电流。

2. 发明申请

US20080252503A1 Digital to Analog Converter with High Driving Capability 有权
标题翻译：具有高驱动能力的数模转换器
公开(公告)号：US20080252503A1
公开(公告)日：2008-10-16
申请号：US11776548
申请日：2007-07-11
申请人： Tsung-Hau Chang , Kuang-Feng Sung
发明人： Tsung-Hau Chang , Kuang-Feng Sung
IPC分类号： H03M1/66
CPC分类号： H03M1/76
摘要： A digital-to-analog converter with high driving capability includes a voltage generator for generating voltages, a voltage division circuit coupled to the voltage generator for outputting a plurality of reference voltages according to voltages generated by the voltage generator, a decode unit for decoding a digital signal, a switch circuit coupled to the voltage division circuit and the decode unit for switching to output one of the plurality of reference voltages, and a current generator coupled to the voltage division circuit for generating currents to the voltage division circuit.
摘要翻译：具有高驱动能力的数模转换器包括用于产生电压的电压发生器，耦合到电压发生器的分压电路，用于根据由电压发生器产生的电压输出多个参考电压;解码单元，数字信号，耦合到分压电路的开关电路和用于切换以输出多个参考电压中的一个的解码单元;以及耦合到分压电路的电流发生器，用于向分压电路产生电流。

3. 发明授权

US08610360B2 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：US08610360B2
公开(公告)日：2013-12-17
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： H05B37/00
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。

4. 发明授权

US08427081B2 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：US08427081B2
公开(公告)日：2013-04-23
申请号：US13556146
申请日：2012-07-23
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 method of a light-emitting diode (LED) adapted to a driving apparatus is provided. The driving method includes detecting whether the driving apparatus performs dimming, and if the driving apparatus performs dimming, determining whether a predetermined requirement for dimming control is met or not. When the predetermined requirement for dimming control is not met, respective current magnitudes of a plurality of driving currents are regulated, and each of the driving currents is output for a full time of a period. Conversely, when the predetermined requirement for dimming control is met, each of the driving currents is output for a partial time of a period.
摘要翻译：提供了适用于驱动装置的发光二极管（LED）的驱动方法。驱动方法包括检测驱动装置是否进行调光，并且如果驱动装置进行调光，则确定是否满足了对调光控制的预定要求。当不满足调光控制的预定要求时，调节多个驱动电流的各自的电流大小，并且每个驱动电流输出一段时间的全时间。相反，当满足调光控制的预定要求时，每个驱动电流输出一段时间的部分时间。

5. 发明申请

US20120139434A1 DRIVING APPARATUS OF LIGHT EMITTING DIODE AND DRIVING METHOD THEREOF 有权
标题翻译：发光二极管的驱动装置及其驱动方法
公开(公告)号：US20120139434A1
公开(公告)日：2012-06-07
申请号：US13370310
申请日：2012-02-10
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 method of a light-emitting diode (LED) adapted to a driving apparatus is provided. The driving method includes receiving a dimming signal, detecting whether the driving apparatus performs dimming, and if the driving apparatus performs dimming, determining whether a duty cycle of the dimming signal is smaller than a predetermined value. When the duty cycle of the dimming signal is not smaller than the predetermined value, respective current magnitudes of a plurality of driving currents are regulated according to the dimming signal, and each of the driving currents is output for a full time of a period. Conversely, when the duty cycle of the dimming signal is smaller than the predetermined value, each of the driving currents is output for a partial time of a period. A driving apparatus employing the driving method is also provided.
摘要翻译：提供了适用于驱动装置的发光二极管（LED）的驱动方法。驱动方法包括接收调光信号，检测驱动装置是否进行调光，以及如果驱动装置进行调光，则确定调光信号的占空比是否小于预定值。当调光信号的占空比不小于预定值时，根据调光信号调节多个驱动电流的相应电流大小，并且每个驱动电流输出一段时间的全时间。相反，当调光信号的占空比小于预定值时，每个驱动电流输出一段时间的一部分时间。还提供了采用驱动方法的驱动装置。

6. 发明授权

US08030904B2 Oscillator circuit 失效
标题翻译：振荡电路
公开(公告)号：US08030904B2
公开(公告)日：2011-10-04
申请号：US12401623
申请日：2009-03-11
申请人： Tsung-Hau Chang , Chin-Hsun Hsu
发明人： Tsung-Hau Chang , Chin-Hsun Hsu
IPC分类号： H02J7/00 , H03L7/00 , H03B5/12
CPC分类号： H03K4/502
摘要： An oscillator circuit including a charge/discharge unit, a capacitance amplifier, and a level detection circuit is provided. The charge/discharge unit is used to receive a control signal, and perform a charge or discharge operation on a charge/discharge terminal according to the control signal. The capacitance amplifier, including a first impedance, a second impedance, a voltage follower, and a capacitor, is capable of providing an equivalent capacitance with amplifying characteristics. An input terminal of the level detection circuit is electrically connected to the charge/discharge terminal of the charge/discharge unit, and the level detection circuit generates the control signal to the charge/discharge unit according to the charge/discharge terminal of the charge/discharge unit. The oscillator circuit of the present invention may use a capacitance with a smaller level to provide an equivalent capacitance with amplifying characteristics, and thus achieve an oscillator function.
摘要翻译：提供了包括充电/放电单元，电容放大器和电平检测电路的振荡器电路。充放电单元用于接收控制信号，并根据控制信号对充放电端子进行充放电操作。包括第一阻抗，第二阻抗，电压跟随器和电容器的电容放大器能够提供具有放大特性的等效电容。电平检测电路的输入端子与充放电单元的充放电端子电连接，电平检测电路根据充电/放电单元的充电/放电端子向充放电单元产生控制信号，放电单元本发明的振荡电路可以使用具有较小电平的电容来提供具有放大特性的等效电容，从而实现振荡器功能。

7. 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。

8. 发明授权

US08237369B2 Light source apparatus and driving circuit thereof 有权
标题翻译：光源装置及其驱动电路
公开(公告)号：US08237369B2
公开(公告)日：2012-08-07
申请号：US12401624
申请日：2009-03-11
申请人： Tsung-Hau Chang
发明人： Tsung-Hau Chang
IPC分类号： H05B39/02
CPC分类号： H05B33/0848 , H05B33/0818 , Y02B20/346
摘要： A light source apparatus and a light source driving circuit are provided. The light source driving circuit includes an operation amplifier (OP-AMP), a transistor, and a switch unit. A first input terminal and an output terminal of the OP-AMP couple to a predetermined voltage and a control terminal of the transistor, respectively. A first terminal of the transistor couples to a light source. The switch unit includes a first signal terminal receiving a first voltage greater than a predetermined voltage, a second signal terminal coupled to a second input terminal of the OP-AMP, a third signal terminal coupled to a second terminal of the transistor, and an enabling terminal receiving a driving voltage. A voltage of the third signal terminal or a voltage of the first signal terminal is determined to transmit to the second signal terminal in accordance with the driving voltage.
摘要翻译：提供了光源装置和光源驱动电路。光源驱动电路包括运算放大器（OP-AMP），晶体管和开关单元。 OP-AMP的第一输入端子和输出端子分别耦合到预定电压和晶体管的控制端子。晶体管的第一端耦合到光源。开关单元包括接收大于预定电压的第一电压的第一信号端子，耦合到OP-AMP的第二输入端的第二信号端，耦合到晶体管的第二端的第三信号端，以及使能端子接收驱动电压。确定第三信号端子的电压或第一信号端子的电压，以根据驱动电压发送到第二信号端子。

9. 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。

10. 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。

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