20
21
-1
1
18
Power Supply PS1000-A6-24.5
Efficiency and Power Losses
11
Efficiency and Power Losses
Figure 11.1 Efficiency vs. output current at 24V, typ.
Figure 11.2 Losses vs. output current at 24V, typ.
AC 100V
AC 120V
AC 230V
Efficiency
Typ.
92.9%
93.6%
94.3%
At 24V, 5A
Typ.
92.7%
93.5%
94.5%
At 24V, 6A (Power Boost)
Average efficiency
1
Typ.
91.3%
91.7%
92.0%
25% at 1.25A, 25% at 2.5A,
25% at 3.75A. 25% at 5A
Power losses
Typ.
1.3W
1.3W
1.4W
At 24V, 0A
Typ.
4.6W
4.4W
4.1W
At 24V, 2.5A
Typ.
9.2W
8.2W
7.3W
At 24V, 5A
Typ.
11.3W
9.8W
8.4W
At 24V, 6A (Power Boost)
1
The average efficiency 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.
Efficiency
1
2
3
5
6A
89
90
91
92
93
94
95%
Output Current
4
(a)
(b)
(c)
(a) 100Vac
(b) 120Vac
(c) 230Vac
88
87
Power Losses
0
2
3
6A
2
0
4
6
8
12W
5
10
1
4
Output Current
(a)
(b)
(c)
(a) 100Vac
(b) 120Vac
(c) 230Vac
