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How to size capacitors in switching converters

Posted: 03 Oct 2008     Print Version  Bookmark and Share

Keywords:capacitor  switching converters  capacitance 

System designers often see challenges in designing capacitor arrays to be implemented on the output of a buck converter, because mathematical tools for calculating the necessary and sufficient amount of capacitance are not yet established. As a result, system designers might overlook the fact that insufficient capacitance, resulting in invalid voltage, is causing unstable operations of loads. Or they might simply be wasting component cost and PCB area by implementing surplus capacitance, therefore raising a unit cost of a consumer device unnecessarily.

This article discusses a mathematical approach to designing capacitor arrays for switching converters.

View the PDF document for more information.

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