Modelling Analysis of SEPIC and ZETA Converter Topologies

The paper provides a thorough examination and comparison of Single-Ended Primary-Inductor Converter (SEPIC) and Zeta converter topologies in open and closed-loop setups. The study commences by outlining the design and simulation of each converter in an open-loop state, utilizing the provided schematics and simulation findings as a foundation for debate. Each converter's open-loop behavior is assessed, focusing on the early transient reactions and steady-state performances. Moreover, closed-loop control implementation is investigated to improve the stability and dependability of each system when dealing with different load circumstances. The research contrasts the two topologies based on efficiency, voltage conversion ratio, ripple characteristics, and transient response. The text includes a discussion on the appropriateness of each converter for various applications, offering significant guidance for power electronics engineers in choosing the right converter architecture for specific scenarios. The examination ends with suggestions for future research and possible enhancements in converter design.