Alternator Operation; Integral Voltage Regulator Operation (12 Volts D-C); Alternator Schematic Diagram - Carrier 69GL15-114 Operation And Service

1.10.2 Alternator Operation

The alternator converts mechanical and magnetic
energy to alternating current (A-C) and voltage, by the
rotation of an electromagnetic field (rotor) inside a three
phase stator assembly. The alternating current and
voltage is changed to direct current and voltage, by
passing A-C energy through a three phase, full-wave
rectifier system. Six silicon rectifier diodes are used. (See
Figure 1-9)
1.10.3 Integral Voltage Regulator Operation
(12 volts d-c)
The regulator is an all-electronic, transistorized
device. No mechanical contacts or relays are used to
perform the voltage regulation of the alternator system.
The electronic circuitry should never require adjustment
and the solid state active elements used have proved
reliable enough to warrant a sealed unit. The system is
temperature compensated to permit the ideal charging
rate at all temperatures.
The regulator is an electronic switching device. It
senses the system voltage level and switches the voltage
applied to the field in order to maintain proper system
voltage.
1
10
9
1. 12vdc Test Lamp
Terminal (D+)
2. Diode Trio
3. Positive Output(B+)
4. Rectifier
5. Ground
Figure 1-9. Alternator Schematic Diagram
1-10
2
3
4
8
7
6. A-C Tap
7. Rotor (Field)
8. Stator
9. Integral Regulator
10. Excite
5
6