Design of DC buck chopper circuit for battery charging based on Simulink

With the rise of electric vehicles and electric bicycles and the growth of demand for new energy storage, the battery industry has gradually expanded to private enterprises, and the daily use of the battery has become wider. This design is divided into three parts: circuit design, component parameter calculation and simulink simulation. A filter circuit is added between the rectifier circuit and the buck chopper circuit to filter out a more stable DC output voltage, which is used as the input power of the buck chopper circuit and then supplied to the battery for charging. The simulation is carried out by Simulink, which verifies that the output voltage value and output current value reach the expected value.