Car Alternator Voltage Regulator Circuit Diagram - 21 Images

The voltage regulator controls the field current applied to the spinning rotor inside the alternator.

Car alternator voltage regulator circuit diagram. Collection of automotive voltage regulator wiring diagram. The alternator output should fall it will need some load for this test. Automotive alternator schematic diagram an automotive alternator is a three phase generator with a built in rectifier circuit consisting of six diodes. If the regulator is mounted outside common on some ford products there will be a wiring harness connecting it to the alternator.

How voltage regulators work voltage regulators. The pivot bolt terminal end nut voltage regulator regulator wiring plug and brush holder. As the sheave most people call it a pulley is rotated by a belt connected to the automobile engine s crankshaft a magnet is spun past a stationary set of three phase windings called the stator usually connected in a y configuration. A voltage regulator is an important component of your car s charging system.

It is the same for ford f150 f250 and other ford f series cars. As the name indicates it regulates the amount of voltage produced from the alternator to ensure a consistent voltage to the battery and electrical equipment in your car. A wiring diagram is a streamlined standard photographic representation of an electric circuit. The voltage regulator can be mounted inside or outside of the alternator housing.

On the ic 741 pin 2 should have a voltage not far from 6 2 say between 5 and 7 volts that should move up and down as the potmeter is turned. The image above is an alternator from a 2002 ford ranger. As you may recall from last month s article on the function of generators in your classic car there is no means of internally controlling the output of one in other words the faster it spins the more voltage goes into the car s electrical system. At this time with 12 volts on both sides the lamp is out.

Too much voltage and your fuses blow if you don t have a regulator. Testing alternator not turning but ignition on. In this article you will find the alternator function and alternator wiring diagram in a car. External regulator alternator wiring diagram wiring diagram is a simplified within acceptable limits pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the facility and signal links amongst the devices.

Once the alternator is at full output voltage from the diode trio also applied to 1 equals the battery voltage. The voltage from your alternator increases and decreases according to the speed the alternator rotates. The main function of alternator is to convert mechanical energy into electrical energy in alternating nature. If the alternator should fail voltage from the diode trio would drop and once again the lamp would light from the battery voltage.