公开(公告)号：US20120176066A1

公开(公告)日：2012-07-12

申请号：US13400121

申请日：2012-02-20

Applicant: Yung Lin LIN ,  Sheng-Tai LEE

Inventor： Yung Lin LIN ,  Sheng-Tai LEE

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0824

Abstract: A portable lighting device includes a controller, a power source that provides a voltage, and a load that includes a light emitting diode (LED) light source. The controller receives the voltage and regulates a current of the LED light source based on a sensing signal indicating the voltage of the power source. The controller regulates the current of the LED light source to a first current level if the voltage of the power source is greater than a first voltage level, and to a second current level if the voltage of the power source is less than a second voltage level. The second voltage level is less than the first voltage level. The controller regulates the current of the LED light source to vary according to the sensing signal if the voltage of the power source is between the first voltage level and the second voltage level.

Abstract translation: 便携式照明装置包括控制器，提供电压的电源以及包括发光二极管（LED）光源的负载。 控制器基于指示电源电压的感测信号接收电压并调节LED光源的电流。 如果电源的电压大于第一电压电平，则控制器将LED光源的电流调节到第一电流电平，并且如果电源的电压小于第二电压电平，则控制器将电流调节到第一电流水平 。 第二电压电平小于第一电压电平。 如果电源的电压处于第一电压电平和第二电压电平之间，则控制器调节LED光源的电流根据感测信号而变化。

公开(公告)号：US20120091816A1

公开(公告)日：2012-04-19

申请号：US13289364

申请日：2011-11-04

Applicant: Da LIU ,  Sheng-Tai LEE ,  Ju-Yuan HSIAO ,  Chang-Yi LIN

Inventor： Da LIU ,  Sheng-Tai LEE ,  Ju-Yuan HSIAO ,  Chang-Yi LIN

IPC: H02J7/00

CPC classification number: H02J7/022 ,  H02J7/0068 ,  H02M3/158 ,  H05B33/0809 ,  Y10T307/696

Abstract: In one embodiment, a power system includes a first power source having a first voltage, a second power source having a second voltage, and a controller. The controller is coupled to the first power source and the second power source. The controller compares the first voltage with the second voltage, controls the first power source to charge the second power source via a first switch and a second switch in a charging mode when the first voltage is greater than said second voltage, and controls the second power source to power a load such as a light-emitting diode (LED) light source via the second switch and a third switch in a load-powering mode when the second voltage is greater than the first voltage.

Abstract translation: 在一个实施例中，电力系统包括具有第一电压的第一电源，具有第二电压的第二电源和控制器。 控制器耦合到第一电源和第二电源。 控制器将第一电压与第二电压进行比较，当第一电压大于所述第二电压时，控制第一电源经由第一开关和第二开关以充电模式对第二电源充电，并且控制第二电源 源极，当第二电压大于第一电压时，经由第二开关和负载供电模式中的第三开关对诸如发光二极管（LED）光源的负载供电。

公开(公告)号：US20100264844A1

公开(公告)日：2010-10-21

申请号：US12757239

申请日：2010-04-09

Applicant: Yi-Ren WANG ,  Sheng-Tai LEE ,  Da LIU ,  Chuan-Chiung KUO

Inventor： Yi-Ren WANG ,  Sheng-Tai LEE ,  Da LIU ,  Chuan-Chiung KUO

IPC: H05B41/36 ,  G05F1/00

CPC classification number: H05K1/141 ,  H05K3/3447 ,  H05K2201/10166

Abstract: A power system includes a switching circuit, a resonant tank, a feedback circuit, and controller circuitry. The switching circuit including a first switch and a second switch provides a first AC signal. The resonant tank coupled to the switching circuit receives the first AC signal and generating a second AC signal for powering a load. The feedback circuit coupled to the load monitors an electrical condition of the load and provides a feedback signal. The controller circuitry coupled to the converter controls the switching circuit according to the feedback signal so as to control the power to the load. The controller circuitry is integrated in a first die. The first switch is integrated in a second die, and the second switch is integrated in a third die. The first die, said second die and said third die are mounted on and electrically interconnected to a platform compatible with through-hole technology. The platform and the resonant tank are further assembled on a printed circuit board.

Abstract translation: 电力系统包括开关电路，谐振箱，反馈电路和控制器电路。 包括第一开关和第二开关的开关电路提供第一AC信号。 耦合到开关电路的谐振槽接收第一AC信号并产生用于给负载供电的第二AC信号。 耦合到负载的反馈电路监视负载的电气状态并提供反馈信号。 耦合到转换器的控制器电路根据反馈信号控制开关电路，以便控制负载的功率。 控制器电路集成在第一管芯中。 第一开关集成在第二管芯中，第二开关集成在第三管芯中。 第一模具，所述第二模具和所述第三模具安装在与通孔技术兼容的平台上并电互连。 平台和谐振槽进一步组装在印刷电路板上。