脉宽脉频调制的DC-DC变换器效率分析

2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI:10.1109/ELNANO54667.2022.9926762

V. Nerubatskyi, O. Plakhtii, D. Hordiienko

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引用次数: 5

摘要

本文对脉宽脉频调制的DC-DC变换器的能量特性进行了研究。在Matlab软件环境下建立了带脉宽和脉频转换器的DC-DC变换器模型。对IGBT的主要能量特性进行了多项式近似。所提出的表达式使得利用Matlab进行计算机仿真，确定半导体变换器电源开关的静态和动态损耗成为可能。近似的数学依赖关系准确地描述了IGBT的功率损耗图。确定了采用脉冲频率调制电路与脉宽调制电路相比的优点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Efficiency Analysis of DC-DC Converter with Pulse-Width and Pulse-Frequency Modulation

The article present investigation of energy characteristics of DC-DC converters with pulse-width and pulse-frequency modulation. A model of DC-DC converter with pulse-width and pulse-frequency converters in the Matlab software environment has been developed. Polynomial approximation of the main energy characteristics of the IGBT was performed. The presented expressions make it possible to determine static and dynamic losses in the power switches of semiconductor converters with the help of computer simulation in Matlab. Approximate mathematical dependences accurately describe the diagrams of power losses of IGBT. The advantages of using the circuit of the pulse-frequency modulation in comparison with the pulse-width modulation are determined.

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2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)

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