CAJ | 학술논문

提出一种新的DC-DC变换电路，该变换器具有任意升/降压功能，是准Z源逆变电路的一种延伸。电路工作于“类同步整流工作模式”下，损耗小，整机效率高；同步开关管功率等级小，电容C2容量等级和电压应力都较小，减少了系统的硬件成本和整机空间，性价比高。研究了电路的具体工作模式和升-降压功能，推导了电路各部分的数量关系，计算元器件参数。实验室内搭建了50W样机对所提电路进行相关性能检测，实验结果与理论分析相符，验证了所提变换器的有效性和实用性。
제출일충신적DC-DC변환전로，해변환기구유임의승/강압공능，시준Z원역변전로적일충연신。전로공작우“류동보정류공작모식”하，손모소，정궤효솔고；동보개관관공솔등급소，전용C2용량등급화전압응력도교소，감소료계통적경건성본화정궤공간，성개비고。연구료전로적구체공작모식화승-강압공능，추도료전로각부분적수량관계，계산원기건삼수。실험실내탑건료50W양궤대소제전로진행상관성능검측，실험결과여이론분석상부，험증료소제변환기적유효성화실용성。
This paper proposes a noveI DC-DC converter.The proposed converter,deduced from the qZSI,has buck-boost charac-teristic.It works at the simiIar synchronous rectification operating modes, which decreased the power Ioss and improved the efficiency of the converter.The Iower power IeveI of S1,Iower capacitance,and smaI voItage stress of C2,resuIts in the high power density.Theory of buck-boost characteristic has been studied,the reIationships of the converter and devices guideIine are presented in this paper.