780 V6-2849cc 2.8L SOHC B280F (1987)
Voltage Regulator: Electrical Specifications
System Operating Voltage
System Operating Voltage
Voltage Setting 13.8-14.6 V at 75 deg F
Note: At Test Temperature
Internal Design, TWC Hybrid-film
Internal Design, TWC Hybrid-film
Conditions In-Car
Air Temperature
9.45 V at 25 deg C
Warm Temperature
9.45 V at 60-80 deg C
Condition On-Bench
Air Temperature
12.60 V at 25 deg C
Warm Temperature
12.60 V at 60 deg C
Test In-Car
Alternator Speed
6000 rpm
Engine Speed
3000 rpm
Load On Alternator
30-50 A
Test On-Bench
Alternator Speed
6000 rpm
Engine Speed
0
Load On Alternator
5 A
Control Voltage
In-Car
13.7-14.9 V
at B+ and D- on alternator
On-Bench
13.7-14.9 V
Load Control Tolerance
13.4 - 14.6 V
47 A
60 A
77 A
Normal Temperatures
14.4 V at -20 deg C
14.2 V at 0 deg C
14.0 V at 20 deg C
13.8 V at 40 deg C
High Temperatures
15.0 V at -20 deg C
14.8 V at 0 deg C
14.6 V at 20 deg C
14.4 V at 40 deg C
Internal Design Type III
Internal Design Type III
Designation
Bosch
Volvo
Conditions In-Car
Air Temperature
9.45 V at 25 deg C
Warm Temperature
9.45 V at 60-80 deg C
Condition On-Bench
Air Temperature
12.60 V at 25 deg C
Warm Temperature
12.60 V at 60 deg C
Test In-Car
Alternator Speed
6 rpm
Engine Speed
3000 rpm
Load On Alternator
30-50 A
Test On-Bench
Alternator Speed
6000 rpm
Engine Speed
0
Load On Alternator
5 A
Control Voltage
In-Car
13.6-14.6 V
On-Bench
14.1-14.9 V
Load Control Tolerance
13.9 - 14.6 V
47 A
60 A
77 A
90 amp alternator -20%