非理想反激变压器电流变换特性的分析与测量  

Analysis and measurement of current transformation characteristic of non-ideal flyback transformer

作　　者：陈国杰[1] 周有平[1] 余奕聪 

机构地区：[1]佛山科学技术学院理学院,广东佛山528000

出　　处：《大学物理》2015年第8期34-37,共4页College Physics

基　　金：基金项目:"大学物理实验"广东省资源共享课程;教学团队

摘　　要：根据能量守恒原理,导出了非理想反激变压器的电流变换式,分析了电流变换特征,解释了其物理本质,测量了电流波形,测量结果与理论相符.电感电流连续的物理实质是磁通量连续,反激变压器磁通量连续表现为各绕组的总安匝数不变.The equation of the current transformation of the non-ideal flyback transformer is derived according to the principle of energy conservation. The characteristic of current transformation is analyzed,and its physical nature is explained. The current waveforms of the flyback transformer are measured,and the experimental results are in agreement with the theoretical analysis and the derived equation of the current transformation. In essence,the continuity of the inductance current is that of magnetic flux. The continuity of the flyback transformer magnetic flux behaves to remain the ampere-turns of the transformer unchanged.

关 键 词：反激变压器 电流变换 分析 测量 

分 类 号：O482.5[理学—固体物理]