Employing the Cascode Methods, A Transformer-Less High Voltage Gain Step-Up DC-DC Converter

Abstract

The goal of this research is to use the cascade approach to buck boost converters in order to produce high step-up voltage gain with a suitable duty ratio for an electric energy conversion system. Electronic equipment that demand electricity must convert AC voltage sources into DC power since they cannot be powered directly by the current electrical AC voltage. Significant voltage increases cannot be achieved by traditional boost converters because of the influence of power switches, parasitic resistive parts, and the diodes' reverse-recovery issue. The high voltage gains step-up (HVGSU) DC-DC converter, which combines two integrated buck-boost converters with a single switch, is proposed in this study. With the cascode technique, high voltage gain can be obtained without an extreme duty ratio; in this case, the switch's duty ratio is regulated by PWM technology. There is a thorough discussion of the suggested converter's equipment and modeling.