公开(公告)号：US20070247087A1

公开(公告)日：2007-10-25

申请号：US11409477

申请日：2006-04-21

申请人： James Lee ,  Kevin Chlebek

发明人： James Lee ,  Kevin Chlebek

IPC分类号： H05B37/02

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： A power supply device for a CCFL or other lamp type regulates a current output to the CCFL regardless of lamp length and/or short circuit conditions. The power supply device for a lamp comprises a voltage regulating module that receives an input voltage signal and generates an output voltage signal that is substantially constant. A voltage driving module receives the output voltage signal and a detection signal, and generates a driving voltage signal. A current limiting module receives the driving voltage signal and generates a current supply signal that is substantially constant regardless of an impedance of a load that receives the current supply signal. A detection module communicates generates the detection signal. The detection signal is indicative of a voltage across the load. The voltage driving module discontinues the driving voltage signal if the detection signal indicates that the voltage is greater than a threshold.

摘要翻译： 用于CCFL或其他灯型的电源装置调节到CCFL的电流输出，而不管灯长度和/或短路条件如何。 用于灯的电源装置包括电压调节模块，其接收输入电压信号并产生基本恒定的输出电压信号。 电压驱动模块接收输出电压信号和检测信号，并产生驱动电压信号。 电流限制模块接收驱动电压信号并产生基本上恒定的电流电源信号，而不管接收当前电源信号的负载的阻抗。 检测模块通信产生检测信号。 检测信号表示负载两端的电压。 如果检测信号指示电压大于阈值，则电压驱动模块停止驱动电压信号。