This is a Buck Convertor Block Diagram for USB Car Charger Template. It visualizes the modular structure of a buck converter in a car charger, covering stages like 12V car battery input, input filter, buck converter IC (with PMW controller, MOSFET switch, inductor, etc.), protection circuit, and 5V USB output, along with key advantages (high efficiency, fast charging), power conversion process, and real-world uses for charging phones, GPS, and other USB devices. Ideal for power electronics engineers, automotive tech designers, or consumer electronics enthusiasts, this template helps understand the workflow and components of a buck converter in USB car charging systems.