一种双输出PWM型电流模式控制的DC/DC转换器的设计  

Design of a Dual-Output DC/DC Converter Controlled in Current Mode and Based on PWM Technology

作　　者：郑凯华[1] 吴煊[1] 孙伟锋[1] 吴建辉[1] 

机构地区：[1]东南大学国家专用集成电路系统工程研究中心,江苏南京210096

出　　处：《电子工程师》2003年第10期62-64,共3页Electronic Engineer

摘　　要：提出了一个基于脉宽调制 (PWM)技术并在非连续电流导通模式控制下工作的双输出DC/DC转换器的设计 ,该转换器在 5V输入电压下利用一个电感实现升压和反压两路电压输出。详细介绍了该转换器实现双电压输出的工作原理和驱动逻辑 ,并采用HSPICE电路模拟软件进行了仿真验证。The design of a dual out DC/DC converter is introduced, which is based on pulse width modulation and work in discontinuous current mode . The converter can provide two different outputs with a 5 V input using only one inductor. The logic structure which drive the converter to provide dual output is described. Finally, the design of circuit is simulated and verified with HSPICE circuit simulation software.

关 键 词：脉宽调制 PWM 电流模式控制 DC/DC转换器 双电压输出 工作原理 

分 类 号：TM422[电气工程—电器]