If you do not delve into the subtleties of engineering, the fundamental unit of the generator is very simple. In today's cars use three-phase AC generator, which consists of a fixed external coil, which lies in the stator and rotor that spins inside the moving coil.
Initially, the generator should get yourself a current from the battery, which goes to the field winding of the rotor, while producing the required magnetic field for work. To fully take stock of current to the rotor using a collector with brushes, which act as a single sliding contact. Due to the fact that the entire electrical system and battery cars only need a constant current generator has been specially equipped with a rectifier built into the case. For high-quality overload protection relay is used transistor-regulator, which maintains the voltage within 12.5 – 13.5, which is mounted on the outside of the housing of the generator.
To date, the most common design is a classic performance of the generator attachments, when he was in the form of a separate unit be established exclusively outside of the motor rotor and thus may come from the crankshaft by a belt drive. This option is still the most successful, as it fully provides the greatest ease of removal, installation of the generator for repair and replacement. Although the time available and the different alternative designs, for example, those where the generator is fully integrated into the engine. Here, the engine flywheel, which is equipped with an excitation winding, carries out the role of the rotor in the casing around the exterior of which is determined complete stator winding. In this case, the combined two separate devices – the generator is also working as a single starter.