A Novel Quadratic Step-Up DC-DC Converter

This paper presents a novel quadratic step-up dc-dc converter with a transistor and three diodes. The converter is suitable for applications where a low step-up difference between the input and output voltage is desired. Comparing the proposed topology to other step-up converters it comes out that the semiconductor current stresses are lower and also the voltage stresses for all the three diodes. For the proposed quadratic converter the operation principle and steady-state analysis are presented in detail, for continuous conduction mode operation. Design equations are provided and the converter is simulated in order to prove the feasibility of the proposed quadratic step-up topology. Finally, a prototype was implemented and measurements were performed to validate the feasibility and theoretical analysis.