Device and method for protecting an electronic equipment item

A protection device for an electronic equipment item limiting an electric current between an electric power generator and an electronic equipment item that consumes electric power, comprising a control circuit connected to a power circuit, the power circuit comprising power semiconductors, the power circuit connected in series between the electric power generator and the electronic equipment item, the control circuit comprising:

• a first event detection module relating to the start-up of the protection device and/or the electronic equipment item, comprising:
• a start-up phase management unit limiting the electric current to zero amperes during a first delay time;
• and
• a current draw management unit for the electronic equipment item limiting the electric current to a predetermined value during a second delay time;
• a second event detection module detecting an overvoltage generating event, detecting a voltage greater than an overvoltage threshold at the terminals of the power circuit;
• a current setpoint variation module, connected to the output of said first and second detection modules and adapting a current limitation setpoint signal as a function of a detected event;
• and
• a power semiconductor control module supplying a control signal for controlling the semiconductors of the power circuit by limiting the electric current in the power circuit as a function of the current limitation setpoint signal.