⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种用于中型LCD的双环控制LED背光驱动芯片，通过改进的相位控制方法解决了传统升压转换器瞬态响应限制LED正向电流的问题，实现了更低的功耗和更好的调光性能。
fluorescent lamp (CCFL) for LCD backlight units (BLU) for their lower power consumption, wider color gamut, and better dimming capability, in addition to being mercury-free [1, 2]. Recently, various studies have focused on low-power solutions using LED BLUs in a multi-channel LED configuration [1-3]. While these methods effectively reduce power consumption of LED drivers with the phaseshifted backlight driving method [1], the transient response of the LED forward current is limited by the transient response of the boost converter in the LED driver IC. This makes it difficult to obtain a higher PWM dimming frequency than 1kHz in the LED BLU. In addition, the slow transition time of the LED current limits the minimum duty cycle and PWM dimming resolution. These problems generate audible noise and negatively affect the contrast ratio and power consump
Seok-in Hong1, Jin-Wook Han1, Dong-Hee Kim2, Oh-Kyong Kwon1, 1
Hanyang University, Seoul, Korea, Silicon Mitus, Seoul, Korea 2 Light-emitting diodes (LEDs) are used as an alternative to the cold cathode