A Novel High Gain Transformerless DC-DC Converter with Continuous Input and Output Currents

In this article, a high-efficiency, non-isolated converter is proposed by combining Cascade Boost Additional and Enhanced Luo converters that generate high-output voltages without the need for excessively high duty cycle values. Additionally, incorporating continuous input current renders the converter well-suited for renewable energy applications. Noteworthy advantages of the presented design encompass continuous output current, positive output voltage polarity, common ground for both load and input source, and diminished voltage and current stress on semiconductors compared to the output voltage and input current. The analysis of the operational modes and relevant equations in continuous conduction mode has been presented. Subsequent investigations delved into semiconductor stress parameters and relationships associated with component losses. The proposed design was then compared with several converters concerning component count and voltage gain. Ultimately, simulation results were assessed using PLECS software.