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A Dual Output Discontinuous Conduction Mode SEPIC with Integrated Boost DC-DC Converter

Lookup NU author(s): Ben Stainthorpe, Dr Mohamed Dahidah, Professor Volker Pickert



This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).


The Single Ended Primary Inductor Converter (SEPIC) enables Buck-Boost functionality without inverting the output as in the standard topology. This paper introduces an integrated boost SEPIC topology; analyses the basic operation and gain function in Discontinuous Conduction Mode (DCM) and compares the resultant efficiency in hardware in comparison to alternative cascaded converter options. As the load consumption affects the gain function in DCM, a dual output converter results in both loads impacting the gain, leading to more complex gain functions. In this paper, the theoretical, simulated, and real hardware gain functions are plotted against duty cycle for varying load resistances.

Publication metadata

Author(s): Stainthorpe B, Dahidah M, Pickert V

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: PCIM Europe

Year of Conference: 2023

Online publication date: 11/05/2023

Acceptance date: 19/12/2022

Date deposited: 07/06/2023

Publisher: PCIM Europe


ePrints DOI: 10.57711/4v7y-er43

Sponsor(s): EPSRC