Without Heated Windshield

The Alternator is belt-driven by the engine and generates power to keep the Battery fully charged and to operate electrical system in the vehicle.

Alternator output is variable and depends on the speed at which the Alternator rotor spins, as well as the amount of current being passed through the rotor winding.

Applying voltage at terminal I of the Alternator (Through the Ignition Switch and the Charge Indicator circuitry) turns of the electronic voltage regulator. The Alternator electronic regulator then senses battery voltage at terminal A, and the regulator regulates the amount of current passing through the field winding. As the rotor spins, alternating current is generated in the stator windings, and a series of rectifier diodes insides the Alternator converts the alternating current to direct current. Power generate by the Alternator is supplied at terminal B+. Voltage from the Stator windings is supplied to the voltage regulator through terminal S and circuit 4 (W/BK). The regulator uses this input to turn off the Charge indicator.

Alternator output is limited to about 14 volts on vehicles that do not have heated windshields.