Efficiency and power losses – Rockwell Automation 1606-XLP15B Power Supply Reference Manual User Manual
Page 8

All parameters are specified at 12V, 1.3A, 230Vac input, 25°C ambient and after a 5 minutes run-in time.unless noted otherwise.
8
Rockwell Automation Publication 1606-RM020A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
8. Efficiency and Power Losses
AC 100V
AC 120V
AC 230V
Efficiency
typ.
82.4%
83.0%
82.5%
at 12V, 1.3A (full load)
Power losses
typ.
0.5W
0.55W
0.75W
at 0A
typ.
1.7W
1.6W
1.8W
at
12V,
0.65A
(half
load)
typ.
3.2W
3.1W
3.2W
at
12V,
1.3A
(full
load)
Fig. 8-1
Efficiency vs. output current at 12V,
typ.
Fig. 8-2 Losses vs. output current at 12V,
typ.
Efficiency
0.2
77
78
79
80
81
82
83
76
84%
1.4A
0.6
0.8
1.2
Output Current
0.4
1.0
a) 100Vac
b) 120Vac
c) 230Vac
b
c
a
Power Losses
0
0.2
1.4A
0
0.5
1.5
2.0
4W
2.5
0.4
0.6
0.8
Output Current
1.0
1.2
1.0
3.0
a) 100Vac
b) 120Vac
c) 230Vac
3.5
b
c
a
Fig. 8-3
Efficiency vs. input voltage at 12V,
1.3A, typ.
Fig. 8-4 Losses vs. input voltage at 12V, 1.3A,
typ.
Efficiency
85
120
155
190
225 260Vac
79
80
81
82
83
84
85%
Input Voltage
Power Losses
2.75
3.25
3.50
3.75
4W
85
120
155
190
225 260Vac
Input Voltage
3.00