Supercapacitor as a lossless dropper in DC-DC converters
Kosala Gunawardane
Abstract
A low ESR supercapacitor could be easily used as a lossless voltage dropper in applications like linear voltage regulators to significantly enhance the end to end efficiency of the converter. Useful examples of 12-5 V, 5-3.3V and 5-1.5 V linear converters with extra low frequency based energy circulation with single supercapacitor or supercapacitor arrays are discussed with experimental details. Technique is called supercapacitor assisted low dropout (SCALDO) regulator.
Keywords
linear regulators
LDOs
efficiency
SCALDO
end to end efficiency (ETEE)
6.1 Introduction
Supercapacitors are typically used as energy storage devices (ESD) and such applications ...
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