基于CoolMOS管的H桥变换器的设计  

Design of H-Bridge Converter based on CoolMOS Transistor

作　　者：李君 LI Jun(Changzhou Vocational Institute of Light Industry Jiang Su,Changzhou 213164,China)

机构地区：[1]常州工业职业技术学院,江苏常州213164

出　　处：《自动化与仪器仪表》2024年第2期237-241,共5页Automation & Instrumentation

基　　金：江苏省自然科学基金,(BK20220241);常州市重点研发计划项目(NO:CJ20210040);江苏省高等学校自然科学基金面上项目(21KJB460006)。

摘　　要：开关电源是目前使用数量最多的一种电力电子装置,功率开关是其核心。随着电力电子研究的不断深入,出现了一系列高性能的电力电子开关器件,以CoolMOS为代表的新型功率开关具有优良的转换速度和开关速度,导通电阻低等特点。因此,基于CoolMOS的相关变换器设计成为研究热点。本文首先对CoolMOS的结构、特性进行了简要分析,为变换器的设计奠定了重要基础;其次对整个变换器模型的主电路及控制电路进行具体设计,利用脉宽调制技术控制H桥;然后进行仿真设计,利用PWM技术结合桥臂电流反馈环节进行电流的闭环控制,整合为电流控制器,作为H桥的控制电路,运行后得到符合要求的输出波形信号,证明了本文设计的正确性与可行性。Switching power supply is one of the most widely used power electronic devices at present,and power switch is its core.With the deepening of power electronics research,a series of high-performance power electronic switching devices have emerged.the new power switch represented by CoolMOS has the characteristics of excellent conversion speed,switching speed and low on-resistance.Therefore,the design of related converters based on CoolMOS has become a research hotspot.In this paper,firstly,the structure and characteristics of CoolMOS are briefly analyzed,which lays an important foundation for the design of the converter.Secondly,the main circuit and control circuit of the whole converter model are designed,and the pulse width modulation technology is used to control the H bridge.Then carries on the simulation design,uses the PWM technology combined with the bridge arm current feedback link to carry on the current closed-loop control,integrates into the current controller,as the control circuit of Hbridge,obtains the output waveform signal which meets the requirements after operation,which proves the correctness and feasibility of this design.

关 键 词：COOLMOS H桥变换器 脉宽调制 闭环控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]