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How Does a Car Voltage Regulator Work?

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The voltage regulator of a car works in close companionship with two other devices to ensure that the car maintains the power necessary in order to operate its electrical components. The devices that work with the voltage regulator of a car are the battery and the alternator. The alternator of a car produces power, in order to charge the battery. Alternators use the power generated by magnetism in order to produce electricity. As the car's engine runs, it turns a pulley in the alternator. This pulley spins a rotor around a wire coil with an iron core. This process produces a magnetic field in the rotor, which then creates an electrical current in the coil of wire. The electric current that is created in the alternator is alternating current. Unfortunately, however, the car's battery requires direct current. The alternating current from the alternator is sent through a set of diodes that prevent the current from flowing in any other direction. The current, having been forced to flow ... more
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