公开(公告)号：US20110095615A1

公开(公告)日：2011-04-28

申请号：US12820069

申请日：2010-06-21

申请人： ZHI-GUO LI ,  SHIN-HONG CHUNG ,  HAN-CHE WANG ,  YI-LE GONG ,  WEN-TAO WU

发明人： ZHI-GUO LI ,  SHIN-HONG CHUNG ,  HAN-CHE WANG ,  YI-LE GONG ,  WEN-TAO WU

IPC分类号： H02J4/00

CPC分类号： H02J9/061 ,  H02J7/0068 ,  H02J2009/068 ,  Y10T307/696

摘要： A power source selection circuit includes an external power port and a battery compartment, which are used to connect to an external power source and a battery module, respectively. The power source selection circuit further includes a selection switch including a control terminal connected to the external power port, and a first path terminal connected to the battery compartment. A first unidirectional switch connects a second path terminal of the selection switch to a power output port. A second unidirectional switch connects the external power port to the output terminal. When the external power port is connected to the external power source, the control terminal of the selection switch is at a high voltage and the selection switch is cut off accordingly, thereby the path from the battery module to the power output port is cut off and the external power source provides power to the output port.

摘要翻译： 电源选择电路包括用于分别连接到外部电源和电池模块的外部电源端口和电池室。 电源选择电路还包括选择开关，其包括连接到外部电源端口的控制端子和连接到电池室的第一路径端子。 第一单向开关将选择开关的第二路径端子连接到电力输出端口。 第二个单向开关将外部电源端口连接到输出端子。 当外部电源端口连接到外部电源时，选择开关的控制端子处于高电压状态，并且选择开关被相应地切断，从电池模块到电源输出端口的路径被切断， 外部电源为输出端口提供电源。

公开(公告)号：US20120268025A1

公开(公告)日：2012-10-25

申请号：US13187519

申请日：2011-07-21

申请人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  WEN-TAO WU ,  MI TANG

发明人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  WEN-TAO WU ,  MI TANG

IPC分类号： H05B37/02

CPC分类号： H05B33/0863 ,  H05B37/029

摘要： A switching circuit system includes a rectification circuit, a transformer, a light-emitting unit, a touch panel including a plurality of touch sensors, and a central processing unit (CPU). The CPU determines that a first user operation is taken place on the touch panel when first and second touch signals from at least two touch sensors have been received within a predetermined time interval, and further determines the track of the touches according to the sequence in which the first and second touch signals were received when the first user operation was determined. The CPU further directs the transformer to control the voltage output to the light-emitting unit according to the determined touch track to control the switching circuit system to execute a first function, and otherwise, a second user operation is determined which executes a second function. A related method is also provided.

摘要翻译： 开关电路系统包括整流电路，变压器，发光单元，包括多个触摸传感器的触摸面板以及中央处理单元（CPU）。 当在预定时间间隔内接收到来自至少两个触摸传感器的第一和第二触摸信号时，CPU确定在触摸面板上发生第一用户操作，并且根据其中的顺序进一步确定触摸的轨迹 当确定第一用户操作时接收到第一和第二触摸信号。 CPU进一步引导变压器根据确定的触摸轨控制输出到发光单元的电压，以控制开关电路系统执行第一功能，否则确定执行第二功能的第二用户操作。 还提供了相关的方法。

公开(公告)号：US20120262068A1

公开(公告)日：2012-10-18

申请号：US13245873

申请日：2011-09-27

申请人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  WEN-TAO WU ,  MI TANG

发明人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  WEN-TAO WU ,  MI TANG

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  H05B33/089 ,  Y02B20/341

摘要： An LED (light emitting diode) driving circuit includes a rectifying circuit, an LED module, a voltage dropping circuit connected to the LED module, a voltage detecting circuit connected between the voltage dropping circuit and the LED module, and an integrated circuit. The integrated circuit includes a pulse-width modulation (PWM) control module providing PWM waves, an overcurrent protection (OCP) module, an overvoltage protection (OVP) module, and a frequency control module. The OCP module detects the working current of the LED module, and the OVP module detects the working voltage. The frequency control module adjust the duty cycle of the PWM waves according to the results of comparisons made by the OCP module and the OVP module against reference levels, to adjust the working current of the LED module.

摘要翻译： LED（发光二极管）驱动电路包括整流电路，LED模块，连接到LED模块的降压电路，连接在降压电路和LED模块之间的电压检测电路和集成电路。 该集成电路包括提供PWM波的脉冲宽度调制（PWM）控制模块，过流保护（OCP）模块，过压保护（OVP）模块和频率控制模块。 OCP模块检测LED模块的工作电流，OVP模块检测工作电压。 频率控制模块根据OCP模块和OVP模块与参考电平进行比较的结果调整PWM波的占空比，以调整LED模块的工作电流。

公开(公告)号：US20120161652A1

公开(公告)日：2012-06-28

申请号：US13183453

申请日：2011-07-15

申请人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  MI TANG ,  WEN-TAO WU

发明人： DER-HO CHI ,  YANG-JUI CHAO ,  ZHI-QIANG XIE ,  JI-BAO FU ,  MI TANG ,  WEN-TAO WU

IPC分类号： H05B37/02

CPC分类号： H05B33/0821

摘要： A light emitting diode (LED) illumination apparatus includes an LED illumination circuit and a constant current drive circuit to provide constant current to the LED illumination circuit. The LED illumination circuit includes at least two lighting branches connected in parallel, and each of the at least two lighting branches includes at least one LED and a current regulative diode connected in series.

摘要翻译： 发光二极管（LED）照明装置包括LED照明电路和恒流驱动电路，以向LED照明电路提供恒定电流。 LED照明电路包括并联连接的至少两个照明支路，并且所述至少两个照明支路中的每一个包括串联连接的至少一个LED和电流调节二极管。