Performance Analysis of Hybrid AC-DC SEPIC Converter

Microelectronic systems, wind energy applications, battery chargers, DC motor controllers, and home electric appliances all require AC/DC converters for power supply. With a high voltage conversion ratio and minimal EMI emissions, switching capacitor (SC) based converters could be a promising answer to the difficulties of the present century. A bridge SEPIC PFC converter with a mono-switching capacitor containing a common ground, a transformer-free design, and a transparent energy delivery mechanism is proposed in this article. In addition, this work also includes the theoretical study and simulation findings of a novel AC/DC converter according to the SEPIC architecture. Afterward, the topological stage, design equations, and comparative analysis are all discussed in this article. Furthermore, the lack of a transformer cut the level of components, size, and charge of converters. In sum, this hybrid SEPIC converter has a simpler control structure with a mono switch and can attain elevated efficiency, decreased total harmonic distortion (THD), and an increased input power factor, contrary to the existing converters.