Treffer: High gain multi-stage DC-DC boost converter using improved switched-inductor network with reduced voltage stress.

This article proposes a high-gain DC-DC boost converter employing an improved switched inductor (ISI) network coupled with CLD (capacitor-inductor-diode) cell (ISI-CLD-BC). The ISI network is further extended to an n-stage configuration, providing a multistage structure that enhances the attractiveness of the proposed converter for achieving high voltage gain. By Integrating a CLD cell at the load side, voltage stress across the active switch is reduced, enabling utilisation of lower-rated MOSFETs with reduced on-state resistance, thereby enhancing cost-effectiveness as well as efficiency. Furthermore, the CLD cell has the advantage of increasing the output voltage. The proposed converter's steady-state performance in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is fully studied. Furthermore, the efficiency is analysed by evaluating different power losses of different elements. A small-signal model is derived for the proposed converter to evaluate the non-minimal phase condition followed by a PI controller design under closed-loop conditions. An exhaustive comparative study is conducted between the proposed converter and recently developed high-gain converters by considering various performance indices. Finally, the proposed converter is simulated in MATLAB/Simulink software and an experimental setup is created and tested to ensure its validity and efficacy. [ABSTRACT FROM AUTHOR]

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