Multistage Boost Converter with Modified Voltage Multiplier for Contemporary Applications

Boost converters have wide applications in contemporary power industry, with few disadvantages like complicated design and nonlinear relationships. Amalgamation of renewable energy sources and modern applications like Electric vehicles increases the importance further, recent research studies aim simplification of design and control circuit to achieve maximum gain with lesser passive elements. Modified DC-DC converters are required for contemporary medium and high voltage applications. This work presents a transformer-less, non-isolated, modified DC converter that combines the voltage multiplier concept with a traditional boost converter structure for high-voltage conversion ratios. This manuscript incorporates a multi-stage output section to enhance the voltage amplification of the system. The paper introduces a two-stage converter and provides an analysis of its working principle in both continuous conduction mode and discontinuous conduction mode, including the corresponding equations. This topology is also evaluated in comparison to previous topologies reported in the literature, and the analysis is provided. The suggested configuration is confirmed by simulation and the outcomes are authenticated using a physical prototype.