Abstract
A new wide conversion ratio bidirectional dc-dc converter based on the modified Single-ended primary-inductor converter (SEPIC) converter is presented in this article. A nondissipative current snubber is included in the proposed converter allowing the operation with zero current switching, obtaining reduced switching losses and high efficiency even using conventional MOSFETs. The converter presents intrinsic extended step-up and step-down voltage conversion ratios without extreme low or high duty-cycle and reduced voltage stress in all semiconductors. The theoretical analysis with the operation stages in the step-up and step-down modes, theoretical waveforms, and design procedure are presented and also a comparison with other bidirectional converter topologies. The experimental results are presented to verify the performance of the proposed converter with a 500-W prototype operating with V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> = 48 V and V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> = 300 V and efficiency higher than 95% in both operation modes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Journal of Emerging and Selected Topics in Power Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
