How Does a DC to AC Inverter Work?
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Alternating current
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The rotation of the alternator creates force fields that cut through the stator windings, creating alternating current. Alternating current travels in two direction and is unusable for a car's electrical system.
Converting alternating current to direct current
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As the turning rotor pole force fields cut through the stator windings, alternation current is generated. Two diodes are used to act as one way check valve only allowing current flow in one direction. The diodes rectify, or invert, the alternating current into direct current. The components used to change alternating current to direct current to alternating current are sometimes called inverters. Check your service manual for the terminology used for your electrical system.
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Completed circuit
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The alternator output leaves the positive terminal and travels to the battery. The return circuit is completed through the engine block and vehicle frame.
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