← 返回 JSSC 论文列表JSSC 2011第5期Power Management65nm
Interleaving Energy-Conservation Mode IECM Control in Single-Inductor Dual-Outpu
提出一种采用65nm技术的单电感双输出转换器,通过交错节能模式控制实现高效能量传输。
91%峰值效率,输出电压纹波减少50%
单电感双输出交错节能模式超宽带系统电流交错电压纹波
▸创新点1:交错节能模式(IECM)控制技术,通过动态切换四种能量传输路径实现单电感双输出(SIDO)的高效能量分配,在重载条件下将输出电压纹波降低50%,显著提升系统稳定性(方法创新)
▸创新点2:四能量传输路径设计,利用单电感结构实现双降压输出的独立控制,通过叠加技术最小化电感电流水平,使平均电感电流等于两路负载电流之和,达到91%的峰值效率(电路创新)
▸创新点3:电流交错机制与三维集成架构,采用65nm CMOS工艺将芯片面积压缩至1.44mm²,通过三维堆叠实现电感集成,同时利用交错操作增强驱动能力并抑制电磁干扰(系统集成创新)
▸创新点4:超宽带(UWB)系统供电优化,针对UWB的高动态负载特性,通过IECM控制实现快速瞬态响应,解决了传统单电感多输出转换器在交叉调节中的能量分配失衡问题(应用场景创新)
Abstract
The proposed single-inductor dual-output (SIDO)
converter with interleaving energy-conservation mode (IECM)
control is designed using 65 nm technology to power the ultra-wide
band (UWB) system. The energy-conservation mode (ECM) con-
trol generates four different energy delivery paths for dual buck
outputs with only one inductor. In addition, the superposition
technique is used to achieve a minimized inductor current level.
The average inductor current is equal to the summation of two
output loa