Impact Protection of Vehicles by Automatic Cutting of General Power Supply with GTO

Summary: In the field of car electronics, in addition to the harsh conditions of temperature $(-40^{\circ}\mathrm{C}-+130^{\circ}\mathrm{C})$ and wide-spectrum vibrations, there is a danger of the vehicle igniting in the event of impacts producing a short circuit of the electrical conductors, which remain under voltage. The paper describes an automatic disconnection system of the car general power supply made with a modem device produced by Infineon - Gate Tum-Off Thyristor (GTO) - automatically operated by impact-sensitive electronic systems. At the end of the paper are mentioned the problems that occur in the modern supply of vehicles with DC voltage of 42V and the results obtained by the authors in the design of electronic circuits.