一种快速高精度脉冲输出DC/DC变换器的设计  

Design of a Fast and High Precision Pulse Output DC/DC Converter

作　　者：陈璞[1] 刘宾[1] 

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：《微电子学》2011年第3期389-392,共4页Microelectronics

摘　　要：设计了一种快速高精度脉冲输出DC/DC变换器。分析了电路工作原理,对电路各个子模块的功能及拓扑选择分别进行了阐述。该电路采用独特的两级稳压结构,消除了因脉冲输出特性导致的输出电压波动。测试结果表明,电路启动时间、关断时间及输出电压精度等参数均达到设计输出要求。A fast and high precision pulse output DC/DC converter was designed.Operational principle of the circuit was analyzed,and functions of each circuit block and selection of circuit topology were described.The circuit was designed with a unique two-stage regulator structure to overcome the output voltage fluctuations due to pulse output characteristics.Test results showed that key parameters of the circuit,such as start-time,off-time and output voltage accuracy,etc.reached the design target.

关 键 词：DC/DC变换器 正激变换器 三端稳压 驱动控制 脉冲输出 

分 类 号：TN431[电子电信—微电子学与固体电子学]