New transformer‐less DC–DC converter topologies with reduced voltage stress on capacitors and increased voltage conversion ratio

Maysam Abbasi, Ehsan Abbasi, Li Li
<span title="2021-03-22">2021</span> <i title="Institution of Engineering and Technology (IET)"> <a target="_blank" rel="noopener" href="" style="color: black;">IET Power Electronics</a> </i> &nbsp;
This article proposes new transformer-less step-up/down and step-up DC-DC topologies providing numerous merits such as less voltage stress on capacitors, lower duty-cycle, and higher voltage conversion ratio compared to other DC-DC converters. The proposed converters are extendible by benefiting from several switched-capacitors, making it possible to transfer more power from the converter. The proposed structures are more suitable for modern applications in which it is desirable to achieve high
more &raquo; ... voltage gains by using non-extreme duty-cycles. For proving the analysis and claims, the detailed comparison and experimental results are presented. In the experiments, the dynamic performance of the proposed converters is also validated.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.1049/pel2.12105</a> <a target="_blank" rel="external noopener" href="">fatcat:6tytzib5mzb2relcsew5zy7yty</a> </span>
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