Control and power module for integrated alternator-starter

The invention relates to an alternator-starter power control module for a car, connected between the alternator-starter (3), the on-board network (Ua) and the ground line (GND) of the car, comprising: - a multi-leg transistor bridge (B1-B3), - a control unit for comparing the phase voltage (φ) of the alternator-starter with the reference voltage (Ua, GND) and controlling the transistors as a function of the comparison result, the control unit comprising: - a driver (10, 20, 30) for each branch of the transistor bridge, this driver is connected near the branch transistors, and - a control circuit for controlling the drivers.