3Nx DC-DC Converter: Interleaved Topology To Enhance Voltage Transfer Gain

To mitigate the voltage transfer gain issue of the classical power converters, an isolated boost converter can be a solution. However, it increases the power circuit dimension and expense due to the involvement of many coupled inductors and transformer. In this treatise, a 3Nx DC-DC converter is proposed for high voltage gain application. High voltage transfer gain is obtained by suggested converters and circuitry is derived from two multistage converters (one inverting and second non-inverting) by connecting them. In more specific, 3Nx power converter fusing the characteristics of 2Nx power converter and Nx DC-DC converter, where voltage multiplier and switched inductor cells are used to improve voltage gain. By doing this, the 3Nx power converter generates the voltage transfer gain 3N times higher than the simple boost power converter, where N is several stages in the suggested power converter. The magnitudes of DC voltage can be increased with more number of stages to make renewable energy resources appropriate at the user level. The operation, voltage gain derivation, comparison with recent converter, simulation study are given. The obtained results are closely matched with mathematical analysis and approve the operation of the 3Nx power converter.