Power conversion technique is an essential course in Electrical Engineering, Electronics, and Automation Control. This article presents a method of using Simulink in Matlab to simulate several Power Electronics circuits. This tool is highly useful and actively supports teaching, not only motivating students but also enhancing their ability to apply knowledge to practical situations more flexibly and effectively.Power conversion technique is an essential course in Electrical Engineering, Electronics, and Automation Control. This article presents a method of using Simulink in Matlab to simulate several Power Electronics circuits. This tool is highly useful and actively supports teaching, not only motivating students but also enhancing their ability to apply knowledge to practical situations more flexibly and effectively.