基于FSDM026的反激式开关电源研究与设计  

Design and Analysis of a Flyback Switching Power Supply based on FSDM0265

作　　者：史延东[1] 张善纯[1] 宁飞[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《电力电子技术》2009年第9期15-17,共3页Power Electronics

摘　　要：针对在体积、电磁兼容和功率等方面的要求,以FSDM0265为核心设计了一款单端反激式开关电源。分析了FSDM0265的特性和工作原理,并进行了实际参数的计算、器件的选取和电路的设计,最后给出了该电源的实测波形。实验结果表明,利用该芯片设计的开关电源不但体积小、功率密度高,而且具有输入电压变化范围宽、频率响应快、电压调整率和负载调整率高、输出电压稳定、纹波小的优点,是一种性能可靠,具有实际推广价值的开关电源。For the reasons of the specific size, electromagnetic compatibility and power requirements, this paper introduces a single-ended flyback switching power supply based on the FSDM0265 chip.The principles and characteristics of this chip are analyzed.The parameters calculation, components selection and the circuit design are provided.In the end ,the experimental results and the waveforms are analyzed,which show that this switching power supply has a small size,high power density, and has a wide input voltage range, fast frequency response speed,high voltage and load regulation rates, satble output voltage, small ripple and so on.This switching power supply will get a widespread use in the future.

关 键 词：电源/开关电源 单端反激 

分 类 号：TN86[电子电信—信息与通信工程]