一种带UPS功能的反激式电源设计  

A Design of Flyback Power Supply with UPS Function

作　　者：罗义 汤前进 张修德 付进学 LUO Yi;TANG Qianjin;ZHANG Xiude;FU Jinxue(Wuhan Huazhong Numerical Control Co.,Ltd.,Wuhan 430223,China)

机构地区：[1]武汉华中数控股份有限公司,湖北武汉430223

出　　处：《通信电源技术》2021年第8期54-58,共5页Telecom Power Technology

基　　金：山东省重点研发计划重大科技创新工程项目(2019JZZY010437)。

摘　　要：针对数控系统在突发掉电时数据信息丢失的问题,设计了一种带UPS功能的反激式电源,通过释放储存在超级电容中的能量,在掉电时为系统短时间供电。系统功能测试实验表明,所设计的电源在掉电时,输出端从+24 V掉到+23.5 V的持续时间为10 s,输出稳压精度为3%,满足系统短时供电需求。In order to solve the problem of data information loss in the sudden power failure of CNC system,a flyback power supply with UPS function is designed.By releasing the energy stored in the super capacitor,the power supply is provided for the system in a short time when the power failure occurs.The system function test experiment shows that when the designed power supply is off,the output terminal drops from+24 V to+23.5 V for a duration of 10 s,and the output voltage stabilization accuracy is 3%,which meets the short-term power supply demand of the system.

关 键 词：UPS PWM控制 反激变换器 超级电容 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]