开关转换器输出浪涌电流引发的启动台阶问题技术研究  

Preventing Start up Issue Due to Output Inrush in Switching Converters

作　　者：刘文韬[1] 张洁 苟超 彭克武 陈波 胡袁彬 LIU Wen-tao;ZHANG Jie;GOU Chao;PENG Ke-wu;CHEN Bo;HU Yuan-bin(Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corp.,Chongqing 400060)

机构地区：[1]中国电子科技集团公司第二十四研究所,重庆400060

出　　处：《环境技术》2021年第6期131-135,共5页Environmental Technology

摘　　要：所研制的低压大电流DCDC开关转换器电路在用户处使用,由于容性负载接近1 000 μF,在低温下表现为大电流台阶启动,甚至无法启动。针对该现象,本文开展了大电流开关电源的启动阶段机理分析和实验验证,并提出了针对用户使用条件下的启动台阶现象的解决办法。Since the capacitive load is close to 1 000 μF,the low-voltage and high-current DCDC switching converter circuit developed can not even start at low temperature.In view of this phenomenon,this paper carries out the mechanism analysis and experimental verification of the start-up phase of the high-current switching power supply,and puts forward the solution to the start-up step phenomenon under the user’s use conditions.

关 键 词：大电流DCDC转换器 浪涌电流 大负载电容 台阶启动 

分 类 号：TN432[电子电信—微电子学与固体电子学]