High-end drive circuit and vehicle-mounted electronic system

The invention discloses a high-end drive circuit and a vehicle-mounted electronic system. A high-end output short circuit comprises a short circuit protective module and a drive circuit module; the short circuit protective module is connected with a load, and is used for generating a load short circuit signal when the load is in short circuit; the control end of the drive circuit module is connected with the short circuit protective module; the other two ends of the drive circuit module are separately connected with a first power supply and the load; and when the control end of the drive circuit module receives the load short-circuit signal, connection between the load and the first power supply is interrupted. Therefore, when the load is in short circuit, voltage at the two ends of the short circuit protective module are also reduced to be zero, and the control end of the drive circuit module responds to the zero voltage of the short-circuit protective module, and turns off the drive circuit module, so that