The simulation of four non-isolated DC boost circuits

DC boost circuits are widely used in the design of various power equipments. Because the efficiency and cost advantages of non-isolated boost circuits, people researched and developed them continuously. In this paper, we simulated four non-isolated boost circuits, and then we analyzed and compared their step-up ratio, the voltage and current stresses of power devices, the turn-off losses of diode, applications etc. Through the series of simulations, we can easily understand the advantages of various boost circuits, and they have a certain significance in designing the DC boost circuits.