Dual mode variable voltage converter configuration using single topology: design and analysis.

This paper introduces an optimised design procedure for a DC–DC buck, boost and buck-boost configurations in a single circuit with an integrated dissipative snubber, aiming to enhance performance and efficiency. The conventional buck-boost converter’s versatility in adjusting the output voltage is complemented by a dissipative snubber, mitigating hard switching challenges in power semiconductors. Utilising advanced control techniques for seamless transitions between step-down and step-up modes, the proposed circuit ensures optimal operation across varying input voltages. The research delves into the snubber’s impact on limiting the maximum voltage stress across the switch, considering power losses in the snubber resistor. Simulation, analysis and experimental results validate the design’s effectiveness in meeting voltage regulation requirements, showcasing its adaptability to diverse electronic applications. This optimised design methodology holds promise for improving DC–DC converter efficiency in practical applications where mitigating switching losses and optimising voltage stress are critical considerations. Also this proposed converter provides output simultaneously for buck and boost configurations. The simulation and mathematical analysis are validated using the experimental prototype. [ABSTRACT FROM AUTHOR]