PROJECT TITLE :

A New Transformerless Buck–Boost Converter With Positive Output Voltage

ABSTRACT:

A brand new transformerless buck–boost converter with easy structure is proposed during this study. Compared with the traditional buck–boost converter, the proposed buck–boost converter’s voltage gain is squared times of the previous’s and its output voltage polarity is positive. These blessings enable it to figure in an exceedingly wider vary of positive output. The 2 power switches of the proposed buck–boost converter operate synchronously. In the continual conduction mode (CCM), two inductors are magnetized and 2 capacitors are discharged during the switch-on period, while two inductors are demagnetized and two capacitors are charged during the switch-off period. The operating principles, the steady-state analyses, and the little-signal model for the proposed buck–boost converter operating in CCM are presented intimately. The facility electronics simulator (PSIM) and also the circuit experiments are provided to validate the effectiveness of the proposed buck–boost converter.