摘要
提出了一种具有电流均衡功能的多相降压转换器,该转换器采用华虹0.35μm BCD工艺实现。该转换器带有一个输入前馈同步降压脉冲宽度调制(Pulse Width Modulation,PWM)控制器,以控制一个具有精确电压监测和输入电压前馈能力的双独立电压转换器。通过多相级联技术,可以轻松地实现高效的低电压和高电流输出,操作简便。该技术的特性在于能够抵消由于相位差而产生的多相间的输出噪声,同时能够实现对各相总输出电流的准确平衡。输入电压范围为3~22 V,具有较高的稳定性和较低的输出电压纹波。
This paper presents a multi-phase buck converter with current equalisation,which is implemented using the Hua Hong 0.35μm BCD process.The converter comes with an input feed-forward synchronous buck Pulse Width Modulation(PWM)controller to control a dual independent voltage converter with accurate voltage monitoring and input voltage feed-forward capability.Efficient low voltage and high current outputs can be easily achieved with easy operation through the multi-phase cascade technology.The feature of this technology is the ability to counteract output noise between multiple phases due to phase differences,while enabling accurate balancing of the total output current of each phase.Input voltages from 3V to 22V are possible,with high stability and low output voltage ripple.
作者
罗尧鑫
鲍嘉明
LUO Yaoxin;BAO Jiaming(School of Information,North China University of Technology,Beijing 100043,China)
出处
《通信电源技术》
2023年第4期74-76,共3页
Telecom Power Technology
关键词
多相降压转换器
相位检测
电流均衡
multiphase buck converter
phase detection
current balancing
