CONTROL DEVICE FOR AN ALTERNO-STARTER, PARTICULARLY FOR A MOTOR VEHICLE

摘要

The control device for an alterno-starter comprises a transistor bridge (MHS, MHL), whereby each transistor has a grid, and an electronic unit provided with devices for controlling the grids of the transistors, arranged in pairs, in a branch (T) of the bridge, controlled by at least one control device (100), said branch being connected to a ground line (35) and a positive line, also comprising a device (40) which offers protection against overvoltages and which is connected to a control device (100) and which is configured to enable one of the transistors of the branch to be conductive when the potential of the positive line exceeds a determined or pre-determined value which is lower than the maximum acceptable voltage for said unit.