摘要：With the popularization of intelligent transportation systems, intelligent vehicle terminal has emerged. As the most important part of the Intelligent Transportation System (ITS), the smart vehicle-mounted terminal integrates technologies such as the Internet of Things, satellite navigation technology, and even artificial intelligence, and is now widely used in various modes of transportation. The output voltage of automotive vehicle power supplies is generally 12 V, 24 V, 36 V, while the operating voltage of embedded chips inside vehicle-mounted terminals such as automobiles or buses generally needs to be depressurized before they can work normally. Therefore, this paper will analyze four basic DC chopper circuits, analyze its working principle, and build a DC-DC circuit model according to Matlab/Simulink software and finally analyze the waveform of the simulation output.
