Voltage and current ripple considerations for improving ultra-capacitor lifetime while charging with switch mode converters

Abstract

Ultra-capacitors or supercapacitors that store energy for powering downstream converters used for power conversion need to be charged. When switch mode converters/power supply are used for charging, the significant change in their capacitance with frequency and higher ESR can result in significantly higher voltage ripple in these capacitors. This results in… (More)

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