Synthesis of Interleaved, Unipolar, Switched Capacitor DC-DC Converters

H. Taghizadeh, Andrew Cross, N. Narayanan K., Andrew Urquhart

Research output: Contribution to journalArticlepeer-review


Switched capacitor (SC) dc-dc converters are showing great potential for new applications such as data centres, electric vehicles, and power transmission. Many SC topologies have been synthesized on an ad-hoc basis, although new computer methods are being introduced to formalize this process. This article presents a general synthesis technique that can be incorporated into a computer algorithm to assist with the development of new SC circuits. The technique is based on interleaving SC converter circuits, where two unipolar converters are connected in parallel, and each leg is driven by separate, complementary gate signals. By applying this method to the traditional Ladder SC converter, a topology termed a simplified interleaved ladder (SIL) converter, is synthesized and tested using a hardware prototype. The resonant implementation of the SIL converter has desirable features for MV/LV applications when compared with other existing SC circuits.

Original languageEnglish
Pages (from-to)493-506
Number of pages14
JournalIEEE Transactions on Power Electronics
Issue number1
Early online date27 Oct 2023
Publication statusPublished - 1 Jan 2024

Bibliographical note

Copyright © 2023 Crown Copyright. This is an accepted manuscript of an article published in IEEE Transactions on Power Electronics. Funding & Acknowledgment: This work has been conducted as part of the research project ‘Joint UK-India Clean Energy Centre (JUICE)’ which is funded by the RCUK's Energy Programme (contract no: EP/P003605/1). The project's funders were not directly involved in the writing of this article.


  • Circuit synthesis
  • computer aided analysis
  • switched capacitor circuits


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