公开(公告)号：US20100033102A1

公开(公告)日：2010-02-11

申请号：US12261057

申请日：2008-10-30

申请人： Chen-Ming Hung ,  Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh

发明人： Chen-Ming Hung ,  Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0848 ,  Y02B20/346

摘要： A light adjusting device for a light emitting diode includes a switch, a detecting unit and an illumination adjusting unit. The switch is coupled to a power terminal, which is utilized for providing power for the light emitting diode. The detecting unit is coupled to the switch, and is utilized for determining a status of the switch, so as to generate a detecting result. The illumination adjusting unit is coupled to the detecting unit, and is utilized for adjusting illumination of the light emitting diode according to the detecting result.

摘要翻译： 用于发光二极管的调光装置包括开关，检测单元和照明调节单元。 开关耦合到用于为发光二极管提供电力的电源端子。 检测单元耦合到开关，并且用于确定开关的状态，以便产生检测结果。 照明调节单元耦合到检测单元，并且用于根据检测结果调整发光二极管的照明。

公开(公告)号：US08013540B2

公开(公告)日：2011-09-06

申请号：US12261057

申请日：2008-10-30

申请人： Chen-Ming Hung ,  Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh

发明人： Chen-Ming Hung ,  Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H05B33/0815 ,  H05B33/0848 ,  Y02B20/346

摘要： A light adjusting device for a light emitting diode includes a switch, a detecting unit and an illumination adjusting unit. The switch is coupled to a power terminal, which is utilized for providing power for the light emitting diode. The detecting unit is coupled to the switch, and is utilized for determining a status of the switch, so as to generate a detecting result. The illumination adjusting unit is coupled to the detecting unit, and is utilized for adjusting illumination of the light emitting diode according to the detecting result.

摘要翻译： 用于发光二极管的调光装置包括开关，检测单元和照明调节单元。 开关耦合到用于为发光二极管提供电力的电源端子。 检测单元耦合到开关，并且用于确定开关的状态，以便产生检测结果。 照明调节单元耦合到检测单元，并且用于根据检测结果调整发光二极管的照明。

公开(公告)号：US20100039842A1

公开(公告)日：2010-02-18

申请号：US12353399

申请日：2009-01-14

申请人： Yi-Te LIU ,  Chih-Yuan Hsieh ,  Chih-Jen Yen ,  Lan-Shan Cheng

发明人： Yi-Te LIU ,  Chih-Yuan Hsieh ,  Chih-Jen Yen ,  Lan-Shan Cheng

IPC分类号： H02M7/06

CPC分类号： H02M7/06 ,  H05B33/0809

摘要： A power conversion system and a power conversion method thereof. The power conversion system includes a driving unit, a control unit, a first direct current (DC) power supply circuit and a second DC power supply circuit. The control unit controls the driving unit to drive a load. The first DC power supply circuit converts an alternating current (AC) power into a first DC power outputted to the driving unit, and the second DC power supply circuit converts the AC power into a second DC power outputted to the control unit.

摘要翻译： 电力转换系统及其电力转换方法。 电力转换系统包括驱动单元，控制单元，第一直流（DC）电源电路和第二直流电源电路。 控制单元控制驱动单元驱动负载。 第一直流电源电路将交流（AC）电力转换为输出到驱动单元的第一直流电力，第二直流电源电路将交流电力转换为输出到控制单元的第二直流电力。

公开(公告)号：US20100156309A1

公开(公告)日：2010-06-24

申请号：US12478735

申请日：2009-06-04

申请人： Yi-Te Liu ,  Chih-Yuan Hsieh ,  Chih-Jen Yen

发明人： Yi-Te Liu ,  Chih-Yuan Hsieh ,  Chih-Jen Yen

IPC分类号： H05B37/02 ,  H05B39/09

CPC分类号： H05B33/0893 ,  H05B33/0854

摘要： An LED illuminant driving circuit and an automatic brightness compensation method thereof are provided herein. The automatic brightness compensation method includes: providing a target value; detecting an operation period of a pulse of an output of the LED illuminant driving circuit, the pulse is adapted to an LED illuminant for making the light emitting; deciding a peak value according to the target value and the operation period; and setting a peak level of the pulse according to the peak value. The LED illuminant driving circuit and the automatic brightness compensation method thereof provides a stable average current/voltage to the LED illuminant and avoids brightness variations of the light emitting.

摘要翻译： 本发明提供一种LED光源驱动电路及其自动亮度补偿方法。 自动亮度补偿方法包括：提供目标值; 检测LED光源驱动电路的输出脉冲的工作周期，该脉冲适用于用于发光的LED光源; 根据目标值和操作周期决定峰值; 并根据峰值设定脉冲的峰值电平。 LED光源驱动电路及其自动亮度补偿方法为LED光源提供稳定的平均电流/电压，并避免发光的亮度变化。

公开(公告)号：US20120104963A1

公开(公告)日：2012-05-03

申请号：US13347708

申请日：2012-01-11

申请人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

发明人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

IPC分类号： H05B37/02

CPC分类号： H05B33/0845

摘要： A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source.

摘要翻译： 提供光源装置和光源调节模块。 光源装置包括电源，相位调制器，电变压器，光源调节模块和发光装置。 电源提供第一个交流电压信号。 相位调制器接收第一交流电压信号并调节第一交流电压信号的导通相位以产生调制的交流电压信号。 电变压器转换调制的交流电压信号以产生第二交流电压信号。 光调整模块根据第二交流电压信号的状态生成亮度调整信号。 发光装置接收亮度调整信号，生成对应的光源。

公开(公告)号：US08115408B2

公开(公告)日：2012-02-14

申请号：US12273525

申请日：2008-11-18

申请人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

发明人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

IPC分类号： H05B37/02

CPC分类号： H05B33/0845

摘要： A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source.

摘要翻译： 提供光源装置和光源调节模块。 光源装置包括电源，相位调制器，电变压器，光源调节模块和发光装置。 电源提供第一个交流电压信号。 相位调制器接收第一交流电压信号并调节第一交流电压信号的导通相位以产生调制的交流电压信号。 电变压器转换调制的交流电压信号以产生第二交流电压信号。 光调整模块根据第二交流电压信号的状态生成亮度调整信号。 发光装置接收亮度调整信号，生成对应的光源。

公开(公告)号：US08106601B2

公开(公告)日：2012-01-31

申请号：US12478735

申请日：2009-06-04

申请人： Yi-Te Liu ,  Chih-Yuan Hsieh ,  Chih-Jen Yen

发明人： Yi-Te Liu ,  Chih-Yuan Hsieh ,  Chih-Jen Yen

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H05B33/0893 ,  H05B33/0854

摘要： An LED illuminant driving circuit and an automatic brightness compensation method thereof are provided herein. The automatic brightness compensation method includes: providing a target value; detecting an operation period of a pulse of an output of the LED illuminant driving circuit, the pulse is adapted to an LED illuminant for making the light emitting; deciding a peak value according to the target value and the operation period; and setting a peak level of the pulse according to the peak value. The LED illuminant driving circuit and the automatic brightness compensation method thereof provides a stable average current/voltage to the LED illuminant and avoids brightness variations of the light emitting.

摘要翻译： 本发明提供一种LED光源驱动电路及其自动亮度补偿方法。 自动亮度补偿方法包括：提供目标值; 检测LED光源驱动电路的输出脉冲的工作周期，该脉冲适用于用于发光的LED光源; 根据目标值和操作周期决定峰值; 并根据峰值设定脉冲的峰值电平。 LED光源驱动电路及其自动亮度补偿方法为LED光源提供稳定的平均电流/电压，并避免发光的亮度变化。

公开(公告)号：US20090315475A1

公开(公告)日：2009-12-24

申请号：US12273525

申请日：2008-11-18

申请人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

发明人： Yi-Te Liu ,  Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Lan-Shan Cheng

IPC分类号： H05B37/02

CPC分类号： H05B33/0845

摘要： A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source.

摘要翻译： 提供光源装置和光源调节模块。 光源装置包括电源，相位调制器，电变压器，光源调节模块和发光装置。 电源提供第一个交流电压信号。 相位调制器接收第一交流电压信号并调节第一交流电压信号的导通相位以产生调制的交流电压信号。 电变压器转换调制的交流电压信号以产生第二交流电压信号。 光调整模块根据第二交流电压信号的状态生成亮度调整信号。 发光装置接收亮度调整信号，生成对应的光源。

公开(公告)号：US07541846B2

公开(公告)日：2009-06-02

申请号：US11744225

申请日：2007-05-04

申请人： Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Chiu-Hung Cheng

发明人： Chih-Jen Yen ,  Chih-Yuan Hsieh ,  Chiu-Hung Cheng

IPC分类号： G11C27/02 ,  H03K17/00

CPC分类号： G11C27/026

摘要： A sample-and-hold apparatus and an operating method thereof are provided. The sample-and-hold apparatus includes a sampling amplifier, a transistor, a first switch, a second switch, a sampling capacitor, and a drain-charge unit. A first input terminal of the sampling amplifier receives an input signal. A first-terminal of the transistor is coupled to a first voltage. The first switch is coupled between an output terminal of the sampling amplifier and a gate of the transistor. The first and second terminals of the second switch are coupled to a second terminal of the transistor and a second input terminal of the sampling amplifier, respectively. The first and second terminals of the sampling capacitor are coupled to the gate of the transistor and a reference voltage. The drain-charge unit for draining/providing charges has first and second terminals coupled to the second terminal of the second switch and a second voltage, respectively.

摘要翻译： 提供了采样保持装置及其操作方法。 采样保持装置包括采样放大器，晶体管，第一开关，第二开关，采样电容器和漏极充电单元。 采样放大器的第一输入端接收输入信号。 晶体管的第一端耦合到第一电压。 第一开关耦合在采样放大器的输出端和晶体管的栅极之间。 第二开关的第一和第二端子分别耦合到晶体管的第二端子和采样放大器的第二输入端子。 采样电容器的第一和第二端子耦合到晶体管的栅极和参考电压。 用于排放/提供电荷的漏极 - 充电单元分别具有耦合到第二开关的第二端子的第一和第二端子以及第二电压。

公开(公告)号：US20090174466A1

公开(公告)日：2009-07-09

申请号：US12204791

申请日：2008-09-04

申请人： Chih-Yuan Hsieh ,  Chih-Jen Yen

发明人： Chih-Yuan Hsieh ,  Chih-Jen Yen

IPC分类号： H02M3/02

CPC分类号： H02M3/07 ,  H02M2001/009

摘要： A charge pump circuit is provided. The charge pump circuit includes a pump unit, first through sixth switches, a fly capacitor and an output capacitor. In a first period, an input voltage and a first voltage charge at least one internal capacitor of the pump unit via a first terminal and a second terminal of the pump unit. In the second period, the internal capacitor of the pump unit provides charges to the fly capacitor via the second switch and generates a first output voltage. In the third period, the fly capacitor supplies the charges to the output capacitor via the fourth switch to generate a second output voltage.

摘要翻译： 提供电荷泵电路。 电荷泵电路包括泵单元，第一至第六开关，飞电容器和输出电容器。 在第一时段中，输入电压和第一电压经由泵单元的第一端子和第二端子对泵单元的至少一个内部电容器充电。 在第二时段中，泵单元的内部电容器经由第二开关向飞电电容器提供电荷并产生第一输出电压。 在第三时期，飞电容器通过第四开关将电荷提供给输出电容器，以产生第二输出电压。