摘要： 从软硬件角度探讨SoC处理器电源管理系统的设计，分析SoC处理器PMU的特征，根据其应用需求讨论有关PMIC的设计问题，包括：电源IC内部结构及选型原则，数字PMIC与传统电源IC相比所做的改进，一种新的电源管理总线——PMBus和一种高度整合的PMIC应用。从嵌入式操作系统的角度分析了动态电源管理系统的设计。
关键词:
片上系统,
电源管理单元,
电源管理芯片,
低压差线性稳压器,
开关电源,
数字电源管理
Abstract: This paper studies the power management system design for the System-on-Chip(SoC) processor technology. The characteristic of the processor’s Power Management Unit(PMU) is analyzed. According to its application demands, it discusses the design problems of Power Management IC(PMIC), which includes: the interior architecture of the power IC and its selection principle, the improvement of the digital PMIC in contrast with the traditional power IC, the application of a new power management bus called PMBus and a highly integrated PMIC. It analyzes the design of Dynamic Power Management(DPM), which is a module in the embedded operating system.
Key words:
System-on-Chip(SoC),
Power Management Unit(PMU),
Power Management IC(PMIC),
Low Dropout Regulator(LDO),
switching regulator,
digital power management
中图分类号:
何允灵;秦 娟;王 佳;倪 明;柴小丽. SoC处理器的电源管理系统设计[J]. 计算机工程, 2008, 34(16): 262-264.
HE Yun-ling; QIN Juan; WANG Jia; NI Ming; CHAI Xiao-li. Power Management System Design for SoC Processor[J]. Computer Engineering, 2008, 34(16): 262-264.