Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/32108

Title: An algorithm for automatically calculating component current ratings in switched capacitor DC-DC converters
Authors: Taghizadeh Esfanjani, Hassan
Cross, Andrew M.
Whitehouse, Robert
Barker, Carl
Keywords: Switched capacitor circuits
DC-DC power converters
Circuit analysis computing
Circuit topology
Issue Date: 2018
Publisher: © IEEE
Citation: TAGHIZADEH ESFANJANI, H. ... et al, 2018. An algorithm for automatically calculating component current ratings in switched- capacitor DC-DC converters. IEEE Access, doi:10.1109/ACCESS.2018.2802040.
Abstract: OAPA Switched Capacitor (SC) DC-DC converters, which have traditionally been used for on-chip power supplies, are now being considered for medium to high-power applications. This paper presents a method for automatically synthesising SC converters as well as deriving the expressions for their chargemultipliers. Charge multipliers can be used to calculate important design characteristics such as converter output voltage regulation, efficiency and component current ratings, which can then be used to appraise different topologies. However, whilst a full appraisal of converters also requires component voltage ratings, this work is the first step in developing an automatic software tool that will employ a search-based algorithm to generate optimum SC topologies for a given application. The method is based on the proposition that all SC converters can be synthesised from a so-called "basic cell". The automatic derivation and solution of the charge transfer equations for a traditional Fibonacci SC converter is presented as an example of the proposed method, which is validated against existing analytic equations as well as a detailed Spice simulation. The automatic calculation of the charge-multipliers for two other well-known SC converters is also demonstrated, including a new, arbitrarily generated circuit, which again are validated against detailed Spice simulations.
Description: © 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. The accepted version will be replaced by the published version once this is available.
Version: Accepted for publication
DOI: 10.1109/ACCESS.2018.2802040
URI: https://dspace.lboro.ac.uk/2134/32108
Publisher Link: https://doi.org/10.1109/ACCESS.2018.2802040
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat
Proof.pdfAccepted version9.95 MBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.