⚡ 本页包含 AI 生成的分析内容，仅供参考
提出一种单电感多浮地输出的LED驱动器，实现96%的高效率和0.5%的电流交叉调节，并支持24位色彩分辨率。通过自动电流校准（ACC）技术克服控制器延迟和工艺电压温度变化的影响。
Nan Hua University, Hsinchu, Taiwan 1 The calibration process of the ACC technique is described by the flow chart in Fig. 12.7.3. When ACC detects that LEDs are all on, the output voltage is sensed and defined as VOt. Let VO be the present output voltage. The average inductor current, IC, should be proportional to (VO-VOt)/VO. For VO=VO1, as shown in the right-bottom side of Fig. 12.7.3, an additional delay ta1 is inserted, where the capacitor Ca is charged by a deliberated charging current IC to alleviate the effect of the controller delay (tdr+tdf). To conquer process, voltage, and temperature (PVT) variation, the sensed value of VOt is stored in the memory with an 8b flash analog-to-digital converter (ADC). Note that, once the sensed value is completed stored, the ADC
Hsiang-An Yang1, Wen-Hau Yang1, Ke-Horng Chen1,
Chin-Long Wey1, Ying-Hsi Lin2, Chao-Cheng Lee2, Jian-Ru Lin2, Tsung-Yen Tsai2, Shin-Chi Lai3 National Chiao Tung University, Hsinchu, Taiwan, Realtek Semiconductor, Hsinchu, Taiwan,