Analysis and Implementation of a High Step-Up DC-DC Converter Integrating a Hybrid Voltage Multiplier Cell and a Coupled Inductor

This research introduces a modified design for non-isolated DC-DC converters with a high voltage gain using the design concepts of a coupled inductor (CI) and a hybrid voltage multiplier cell. It is attainable to further increase the output gain without requiring a higher duty cycle or a large turn ratio of CI. This means that the power switch won't be under too much voltage stress. The suggested converter's important features are low maximum voltage across all semiconductor components, considerable efficiency, and a substantial voltage conversion ratio. In addition, the suggested topology includes diodes with soft switching conditions, which allows for a reduction in reverse recovery losses and an improvement in system efficiency. The proposed topology includes input current continuity, a single power switch, and a common ground between the source and the load. Operating analysis, theoretical definitions, efficiency investigation, and a literature review of comparable structures have been considered to demonstrate the proposed structure's functionality. An experimental prototype has also been established, featuring ۱۱۵V output voltage, ۲۰V input voltage, and ۴۰kHz switching frequency, to facilitate the assessment of the proposed converter's efficacy.

کلیدواژه ها:

Non-isolated DC-DC converter ، High voltage gain ، hybrid voltage multiplier cell ، coupled inductor