ON VIDEO How to convert car alternator to brushless


How to convert car alternator to brushless/ECS-less motor with Mosfet driver

The role of the alternator is to convert mechanical energy (provided by the combustion engine) into electrical energy. The electricity thus produced is used in different ways depending on the driving conditions:

at stabilized speed or at idle, the alternator directly supplies electricity consumers (and recharges the battery if its charge level is very low)
during deceleration, the alternator continues to supply electricity consumers directly and recharges the battery
in the event of strong acceleration, the alternator no longer produces electricity in order to avoid a current overload. The battery then provides the energy needed to power the electrical components

The alternator rotor is driven by the engine. Generally, it turns 2 to 3 times faster than the crankshaft thanks to the reduction induced by the diameter of the drive pulley.

The rotor takes the form of a metal axis surrounded by a coil powered by an electric current (principle of the electromagnet). This generates a magnetic field. This field will excite the poles (generally 12 in number) of the stator (also wound), which generates an electric current.


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