专利名称:LED BOOST CONVERTER AND BACKLIGHT
LED DRIVER DEVICE USING THE SAME
发明人:Zhao Wang,Dan Cao申请号:US14240373申请日:20140117
公开号:US20150161949A1公开日:20150611
专利附图:
摘要:The present disclosure discloses an LED boost converter and an LED backlightdriver using the same. The LED boost converter comprises an inductive boost circuit usedin different display modes for boosting an input voltage to a working voltage necessary
for the operation of LED in a current display mode; a detecting circuit used in differentdisplay modes for selecting different detecting resistors for the different display modesso as to provide different detecting currents in the inductive boost circuit; and a
controller used for providing a pulse width modulation signal so as to drive the inductiveboost circuit, and for detecting whether a detecting voltage corresponding to thedetecting current exceeds a reference voltage. The present disclosure can avoid possibleelement failure or abnormal protection in the 3D display mode by arranging a detectingcircuit in the LED boost converter so as to offer detecting resistors corresponding to theworking currents of the 2D display mode and the 3D display mode respectively.
申请人:SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.
地址:Shenzhen, Guangdong CN
国籍:CN
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