According to the working principle of Boost switch converter, the working process of the energy storage inductance and filtering capacitor and the selection of their parameters was discussed. The calculationsl results show that the selection of the energy storage inductance and filtering capacitor is relative to the working frequency of switch. Also, the design of switch working frequency was discussed. The filtering parameters and the working frequency of switch were verified by simulation based on PSIM software. The verification result is consistent with the theoretical analysis, which means the parameter calculation of the storage element is reasonable. The analyzing method and the conclusion is applicable to the selection of other types of DC-DC converter, and also provide a new idea for the design and debugging of DC-DC converter.%根据Boost型开关变换器的工作原理,探讨了储能电感和滤波电容的工作过程及参数选择计算依据,根据计算的结果可知二者的选择与开关管的工作频率选择有关,从而讨论了开关管的工作频率的设计,依据计算设计的结果,基于PSIM软件进行滤波参数和开关管工作频率的计算仿真验证,仿真结果与理论分析一致,表明了储能元件参数计算的合理性.分析的方法和结论为其它类型的DC-DC开关变换器的参数及开关管的工作频率的分析和设计提供了有效的分析手段和方法,也为实际DC-DC开关变换器的设计和调试提供了新的思路.
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