Kankanamge, KKularatna, NSteyn-Ross, DA2015-02-042015-02-042012-11-012012-11-01IET Power Electronics, Volume 5, Issue 9, November 2012, p. 1785 – 17921755-4543https://hdl.handle.net/10292/8378Supercapacitor circulation techniques can be used to improve the end-to-end efficiency of linear regulators based on commercial low drop-out regulators (LDO). In this approach, one or more supercapacitors are used in series and parallel to the input of an LDO IC, and circulated at a very low frequency to increase the end-to-end efficiency by a multiplication factor compared with the efficiency of a linear regulator circuit with the same input–output voltages. This study presents the essential theory of supercapacitor circulation, together with analytical results and comparisons with experimental measurements from a practical 12–5 V implementation. The new technique achieved overall end-to-end efficiencies in the range of 70 to 80%, compared with the maximum theoretical efficiency of 42% for a 12–5 V linear regulator.This paper is a postprint of a paper submitted to and accepted for publication in [Citation] and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.Other energy storageIntegral transformsCapacitorsPower electronics, supply and supervisory circuitsJournal ArticleOpenAccess10.1049/iet-pel.2011.0296