General overview of how an alternator works..how an automotive alternator works tutorial autoshop 101 . Engineering Explained . How An Alternator Works . Bridge Rectifier . Sine Wave . Alternating Current . Direct Current . Diodes . Diode Bridge.... . Voltage Regulator . Stator . Three Phase . Windings . Automotive Electrical . Scotty Kilmer . Tutorial . How A Car Alternator Works . Automotive Charging System . Eric The Car Guy . Davidsfarm . BriansMobile . How To Rebuild An Alternator . Chevy Ford Pontiac Twin Turbo Supra Nissan Amperage Battery Drain Capacitor Here's his explanations cleaned up for everyone to understand: First off, an alternator is essentially an electric generator that initially produces alternating current, but unlike an electric generator which has static, permanent magnets and starts producing electricity once it starts rotating, the alternator has field windings, and it cannot start producing electricity until an outside current is applied to induce a magnetic field while the alternator is rotating. 1) Wiring a. Excitor wire - feeds the field windings the electricial energy needed to start the electricial generating operation. b. Remote voltage sensor (RVS) - computerized lead that dictates how much voltage to apply to the battery to keep the battery's charge maintained. c. Battery wire - the direct pipeline from which all generated electricity from the alternator is fed into the battery. 2) Voltage regulator - the processing center of the alternator which has three terminals: RVS input, field circuit input (FCI) (excitor wire conects to this lead), and field circuit output (FCO). Basically the voltage regulator takes the two inputs, interprets them, and sends its results through the FCO. 3) Rotor - the rotating assembly inside the alternator that, when energized, interacts with the stator windings (see 4) to produce the magnetic field needed to generate electricity. The rotor's energy comes from the FCO via two brushes which contact a copper slip ring and gets fed through the rotor's windings. 4) Stator - consists of 3 windings (3 phase) anchored to the inside of the alternator casing and do not rotate. The stator works in conjunction with the rotor and its windings to produce the alternating current. 5) Bridge rectifier - consists of six diodes which converts alternating current into direct current. There are two diodes per phase, and half the diodes separate the current to positive and the other half separate to negative. 6) Capacitor - acts as an electricial settling tank and allows the rectified current to smooth out. 7) Diode "trio" - a sequential arrangement of three diodes in which the smooth direct current passes through before being sent to the FCI terminal of the voltage regulator. There you have it... in a nutshell.
How a car alternator works EASY TO UNDERSTAND
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