摘要
介绍了一种采用单片机控制的小功率DC/AC逆变电源,直流升压控制部分采用电流型控制芯片UC3846,该控制方案能显著地抑制推挽变压器的磁偏,同时提高负载的动态响应速度。逆变部分的SPWM控制脉冲波形由P87LPC768单片机生成。该逆变电源具有结构简单、体积小、输出稳定性高、成本低等优点。
A DC/AC sine-wave inverter controlled by a Micro-computer Unit(MCU) is introduced.The DC/DC boost unit is push-pull circuit controlled by UC3846,which can perform automatic symmetry correction and enhance load response.The SPWM control pulses are produced by P87LPC768.This inverter has the merits of simple structure,small volume,high output-stability and low-cost.
出处
《电力电子技术》
CSCD
北大核心
2004年第6期94-96,共3页
Power Electronics
