Design of luo converter with integration of step down converter

Electric Vehicles (EVs) rely heavily on DC–DC converters. In modern EVs, a separate DC–DC converter is used to charge both the low-voltage and high-voltage batteries. Because of these factors, the same converter produced enormous output voltage ripples, high ON-OFF losses, and diode conduction losses, resulting in lower EV efficiency. This article proposes a multi-port DC–DC converter charging circuit for EVs to address these issues. The developed circuit has a single input dual output (SIDO) structure, which consists of a negative output super lift luo converter (NOSLLC) and the integration of a step-down converter (NOSLLCSDC). The NOELLC generates high voltage, while the Step-Down Converter generates low voltage. The NOELLC is a fundamental topology of SUPER LIFT LUO CONVERTERs. Over conventional converters, the developed converter has small output voltage ripples, good voltage transfer gain, less turn ON/turn OFF losses and conduction losses, and a compact structure design. Changing the duty cycle of the NOSLLCSDC results in different output voltage ranges. The converter’s implementation is validated at various operating states using MATLAB/Simulink software and experimental models.