基于FPGA的24V在线式UPS设计

摘要

根据UPS原理,制作基于FPGA和单片机的24V交流单相在线式UPS电源.系统主要由整流模块、蓄电池充电模块和逆变模块组成,以单片机和FPGA为核心,进行数据采样,控制输出SPWM波和反应动作控制,并具有过流保护、低压保护、电池电量检测等功能.电路总体结构简单,系统可靠性高,实用性强,能很好地实现持续供电功能,适用于中小型功率电路.%According to the theory of UPS, make a single-phase on-line UPS power with output voltage of 24 V based on FPGA and singlechip. The system consists of three parts: rectification module, charging the battery module and inverse transformation module. It uses FPGA and singlechip microcomputer as the control core to collect data, control the parameter of the SPWM wave and do some other reactions. The system also has several other functions, such as overcurrent protection, low-voltage protection and battery power detection. The overall structure of the circuit is simple and effective. Besides,the system is reliable, useful, and can achieve continued power supply. The system is suitable for small and medium-sized power circuit.