A Quadratic Boost Converter with Continuous Input Current and Low Normalized Voltage/Current Stresses

This paper recommends a new design for quadratic boost converters that includes the following features: (i) the continuous input current has made it suitable for renewable applications and decreased the value of the capacitors in the input filter; (ii) the topology is simple, and consists of a few numbers of components; (iii) in comparison with the cascaded boost and quadratic boost with voltage multiplier cell (VMC), it has a better behavior of voltage gain in the non-ideal mode and higher efficiency; (iv) the semiconductor-based components have lower current/voltage stresses in comparison with the recently recommended designs; (v) 94.5 percent from the theoretical relations and 92 percent from the experimental for the output power of120 W, the duty of 50 percent, and output voltage of 120 V are the efficiency values. The recommended topology has been studied in both ideal and non-ideal modes. The continuous current mode (CCM) is the suggested mode for the proposed converter. Moreover, the requirements of CCM and DCM have been discussed. The various kinds of comparisons have been held for voltage gain, efficiency, and structural details, and the advantages of the suggested design have been presented. A small-signal analysis has been done, and the appropriate compensator has been designed. Finally, PLECS simulation results have been compared with the design considerations.