System Description

With the Ignition Switch in the RUN position, current is applied through the MAIN Fuse to the Integral Alternator/Regulator. If the electronic control circuit in the Regulator measures a low voltage at the W/BK wire, the internal field switch closes. With the switch closed, current is applied to the field.

With current in the field and the rotor turning, the Alternator stator produces an AC voltage. This is converted to a DC voltage by the rectifier assembly and is fed to the stator terminal.

The Alternator output is controlled by the current in the field. The average voltage on the field depends on the percentage of time field switch is closed. The electronic circuit control closes the switch when the voltage at the W/BK wire is low and opens the switch when the voltage is high.