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引用次数: 25

摘要

最近关于DC-DC变换器的出版物指出,混沌工作模式可能对EMC有利。提出了一种用混沌返回映射控制升压变换器开关操作的方案。转换器输入电流的频谱分析表明,返回图的形状如何影响输入电流的功率密度谱。这提供了一种解决设计问题的方法,即选择返回图以满足特定的频谱需求。最后提出了一种简单的变换器混沌控制电路方案。
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Chaotic control of a DC-DC-converter
Recent publications on DC-DC converters have pointed out that a chaotic operation mode may be of advantage for EMC reasons. This paper proposes a boost-converter scheme the switching operation of which is controlled by a chaotic return map. A spectral analysis of the converter's input current demonstrates how the shape of the return map affects the power density spectrum of the input current. This provides an approach to solve the design problem, i.e. to choose a return map in order to meet particular spectral demands. Finally a simple circuit solution for the chaotic control of the converter is proposed.
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