基于SG3525的推挽式逆变电路设计与实现  

Design and Implementation of Push-pull Inverter Circuit Based on SG3525

作　　者：王天凤 WANG Tianfeng(Guangdong Institute of Technology,Zhaoqing 526100,China)

机构地区：[1]广东理工学院,广东肇庆526100

出　　处：《仪表技术》2020年第6期4-6,共3页Instrumentation Technology

摘　　要：根据DC-AC的电压型逆变电路设计方法有三种,分别是半桥逆变、全桥逆变和推挽式变压器逆变。选用基于SG3525的推挽式逆变电路实现DC-AC的无源逆变,两个控制开关轮流交替工作,其输出电压波形对称,电源在整个工作周期都向负载提供功率输出,其输出电流瞬间响应速度快,电压输出特性好,输出波形稳定,接上15 W的白炽灯作为负载,取得良好的调试效果。此设计电路也可作为本科课程《电力电子技术》的课程设计,有助于学生理解和巩固理论知识体系。There are three methods for designing the DC-AC voltage inverter circuit,including the half-bridge inverter,full-bridge inverter and the push-pull transformer inverter.This design uses the push-pull inverter circuit based on the SG3525 to achieve DC-AC passive inverter.The two control switches work alternately.The output voltage waveform is symmetrical.The power supply provides power output to the load throughout the working cycle.The instantaneous response speed of the output current is high.The voltage output characteristic is good and the output waveform is stable.The debugging effect is good with 15 W incandescent lamp as the load.This design circuit can also be used in the"power electronic technology"curriculum design to help undergraduate students understand and master the theoretical knowledge system.

关 键 词：无源逆变 脉宽调制 软启动 

分 类 号：TM464[电气工程—电器]