← 返回 JSSC 论文列表JSSC 2022第8期Data Converters0.5µm, 120-VNeural Network Accelerator
A Wide-Input-Range Low-Profile Adaptive Delay Compensated Hysteretic LED Driver W
一种宽输入范围、低高度的自适应延迟补偿滞后控制LED驱动器
5-100V输入, 25W输出, ±3.2%电流误差, 91.7%峰值效率, 1.8MHz频率
LED驱动器自适应控制GaN FET电流传感器高效转换
▸自适应延迟补偿滞后控制（ADCHC）技术，减少电流偏差
▸高压电流传感器与被动纹波滤波方案，实现MHz级快速准确电流检测
▸采用GaN FETs和集成驱动控制器，显著减小电感和体积
Abstract
This article presents a wide-input-range low-profile
dc–dc-based LED driver. An adaptive delay compensated hys-
teretic control (ADCHC) is proposed to adaptively modulate
both peak and valley inductor currents for minimizing their
current deviations, thereby enhancing the accuracy of the average
LED current under different input and output voltages. A high-
voltage current sensor with passive ripple filtering scheme is also
developed to ensure fast and accurate inductor current sensing
in the mega