摘要
采用0.5μm CMOS工艺,并结合当今电源管理芯片的发展趋势,设计了一款基于反激式变换器的低功率AC-DC电源管理芯片。该芯片在工作方式上采取以频率调制实现的恒流工作模式和以关断电压实现的恒压工作模式,并且集成了各种保护功能。利用Cadence仿真软件对各个模块电路进行仿真验证,使模块电路的性能达到系统的设计要求。
A low-power switching power supply management chip has been designed based on fly-back converter and 0.5 μm CMOS process in lined with the development trend. The chip takes constant current achieved by PFM or constant voltage mode achieved by shutdown voltage, and also integrates muhi-protection functions. At last, each block circuit has been simulated by using Cadence EDA tools to meet the design specification.
出处
《微型机与应用》
2014年第7期22-25,共4页
Microcomputer & Its Applications
基金
中央高校基本科研业务费专项资金(0800219173)
关键词
开关电源
反激式
恒流
恒压
switching power
fly-back
constant current
constant voltage
