A novel modularized DC-DC step-down converter

With the development of modernization, the demand for high-to-low voltage conversion is becoming increasingly important. To meet the requirements of power conversion, a new type of modular DC-DC step-down converter has been designed. First, a novel modular step-down circuit is designed based on the Buck-Boost circuit structure. Subsequently, a flyback power supply module is introduced, which, together with the new modular step-down circuit, forms a two-stage DC-DC step-down structure, significantly increasing the step-down ratio. The use of the flyback power supply module also solves the self-consumption problem of the step-down module, enhancing the overall stability of the step-down converter.