A dynamic model for forward-flyback toggling DC-DC converters is presented in this study. Using a single power switch, a single input inductor, a fully capacitive output filter, isolation, minimum current variation across the output capacitor, and consistent frequency operating inside a standard pulse-width-modulation scheme are just a few of the many advantages of the suggested architecture. The proposed converter is one-of-a-kind and works reliably over a broad input voltage range; potential applications include power factor correction and multiple-output power supply. In traditional AC/DC flyback converters, the transformer's core loses significant amounts of energy due to an imbalance in current across the magnetizing inductor. The power factor is reduced at zero cross AC input voltage in conventional forward converters, despite the fact that they are capable of a high level of power conversion efficiency due to their low core loss. However, the proposed converter may be able to transfer power during the entire switching period and obtain a high power factor through the flyback operation since it can work as both forward and flyback converters throughout the on and off phases. In addition, regardless of the AC input voltage, the offset current passing through the transformer's magnetizing inductor can be effectively reduced by employing a current-balanced capacitor. This allows for a smaller overall transformer footprint and lower core loss. So, the proposed converter has excellent power factor and efficiency. A simulation model is developed in MATLAB/Simulink and then tested by running it on a simulation platform and comparing the results.

Forward-Flyback converters; DC-DC converters; Single Switch design;