Quantification Analysis of the Input Current in the Multiphase Buck Converter and Its Application


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Abstract


This paper presents a new analysis methodology to quantify the input current for the multiphase buck converter (MBC) with arbitrary number of phases operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM). Consequently, it is the first time that the mathematic formula that expresses the input current is derived and therefore all of the possible input current waveform cases are presented. The analysis result can be used as a design tool to predict the converter performance and further optimize the design including component selection, control strategy design. Moreover, it can serve as a foundation for further research of multiphase buck converter.
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Keywords


Multiphase Buck Converter; Input Current; Input Capacitor Current Ripple

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References


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