LED array driving apparatus and backlight driving apparatus using the same

作者： Ju Young Gong , Sang Yun Lee

DOI:

关键词: Pulse-width modulation 、 Light-emitting diode 、 Engineering 、 Power (physics) 、 Dimmer 、 Duty cycle 、 Electronic engineering 、 Regulator 、 Backlight 、 Luminance

摘要: The present invention relates to an LED array driving apparatus and a backlight using the same which enables regulation of analogue PWM dimming for each channel backlight, thereby allowing uniform luminance color in all regions backlight. converts power with constant voltage regulator provide pulse type having plurality LEDs connected series. It regulates on/off interval via dimmer adjust duty ratio pulse. Further, it level current detected at feedback controller apply by process, thus regulating amplitude