Laplace transform — Based theoretical foundations and experimental validation — Low frequency supercapacitor circulation technique for efficiency improvements in linear regulators

Author

Kankanamge, Kosala ; Kularatna, Nihal ; Steyn-Ross, Alistair

Author_Institution

Univ. of Waikato, Hamilton, New Zealand

fYear

2011

fDate

7-10 Nov. 2011

Firstpage

4113

Lastpage

4118

Abstract

Supercapacitor 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 a single or multiple supercapacitors are used in series and parallel to the input of a 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 the linear regulator circuit. The paper presents the essential theory of the supercapacitor circulation, together with MATLAB simulation results compared with experimental results of a 12V to 5V implementation.

Keywords

Laplace transforms; supercapacitors; voltage control; voltage regulators; LDO IC; Laplace transform based theoretical foundation; MATLAB simulation; commercial low drop-out regulator; end-to-end efficiency; experimental validation; linear regulator; linear regulator circuit; low frequency supercapacitor circulation technique; multiplication factor; supercapacitor circulation theory; MATLAB; Power conversion; Regulators; Supercapacitors; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Melbourne, VIC

ISSN

1553-572X

Print_ISBN

978-1-61284-969-0

Type

conf

DOI

10.1109/IECON.2011.6119985

Filename

6119985