晶体管直流变换器的最大磁化电流理论
The Theory of Maximum Magnetizing Current in Transistor Dc-Dc Converter
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摘要: 本文将晶体管直流变换器作为一个整体,用振动理论的方法进行了分析. 在忽略寄生电容时,变换器中存在着不连续振动,其中有两种不同的跳变现象.跳变现象 I是变换器特有的,跳变现象II和变流器中跳变现象相同.其发生原因均为变换器在所处状态下磁化电流已达最大值. 实验结果与理论分析一致.Abstract: In this paper, the transistor DC-DC converter as a whole is analysed by the theory of oscillations. Neglecting the effect of parasitic capacitance, the discontinuous vibration, in which there are two different jump phenomena, exists in the converter. The jump phenomenon I is particular to the converter; The jump phenomenon II is the same as that happens in the DC-AC inverter. The cause resulting in both jump phenomena is that the magnetizing current reaches the maximum under the existing state of the converter. Theoretical prediction is consistent with experimental results.
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