Allen-Bradley 1606 - Efficiency and Power Losses

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM043A-EN-P — March 2014 9
Bulletin 1606 Switched Mode Power Supplies
9. Efciency and Power Losses
AC 100V AC 120V AC 230V
Efciency typ. 92.0% 92.6% 93.9% at 48V, 10A
typ. 91.8% 92.3% 93.9% at 48V, 12A (Power Boost)
Average efciency
*)
typ. 91.1% 91.7% 92.8% 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
Power losses typ. 6.1W 3.6W 2.4W at 48V, 0A
typ. 22.5W 21.6W 18.3W at 48V, 5A
typ. 41.7W 38.4W 31.2W at 48V, 10A
typ. 51.5W 48.0W 37.4W at 48V, 12A (Power Boost)
*) The average efciency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%
of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.
Fig. 9-1 Efciency vs. output current at 48V,
typ
Fig. 9-2 Losses vs. output current at 48V, typ.
0 1 3 4 6 7 12A
86
84
88
90
92
96%
910
94
2 5 8
Output Current
11
a) 100Vac
b) 120Vac
c) 230Vac
b
a
Efciency
c
Power Losses
0 1 3 4 6 7 12A
10
0
20
30
40
60W
910
50
2 5 8
Output Current
11
a) 100Vac
b) 120Vac
c) 230Vac
c
a
b
Fig. 9-3 Efciency vs. input voltage at 48V,
10A, typ.
Fig. 9-4 Losses vs. input voltage at 48V, 10A,
typ.
Efciency
120 180 230 264Vac
89
90
91
92
Input Voltage
93
94
95%
100
Power Losses
120 180 230 264Vac
20
25
30
35
Input Voltage
40
45
50W
100