Double Switch High Step-Up DC-DC Converter Based on Two-Winding Coupled Inductor

High-voltage DC-DC converters are essential elements in most renewable-energy applications. For such converters, it is important to consider their features such as input current and voltage gain. The present paper proposes a novel topology for high step-up DC-DC converter. The suggested converter provides high voltage gain and minimal switch voltage stress using a magnetic-coupling-based voltage multiplier approach. In addition, a boost inductor at the input provides constant input current, which is advantageous for battery, fuel cell, and solar applications. Furthermore, the MOSFETs are switched at zero voltage, resulting in negligible switching losses. In addition, the linked inductor is biased to zero DC, resulting in a compact magnetic area and reduced core losses. This work presents the functionality of the proposed converter, provides the design considerations, and analyzes the converter performance. The converter operation and properties are validated through several simulations.