Datasheet

QS5.241, QS5.241-A1
Q-Series
24V, 5A, SINGLE PHASE INPUT
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 90.5% 91.6% 92.7% at 24V, 5A
Average efficiency *) typ. 89.8% 90.5% 90.3% 25% at 1.25A, 25% at 2.5A,
25% at 3.75A. 25% at 5A
Power losses typ. 3.7W 3.8W 4.3W at 24V, 0A
typ. 12.6W 11.0W 9.4W at 24V, 5A
*) 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.
Fig. 9-1 Efficiency vs. output current at 24V,
typ
Fig. 9-2 Losses vs. output current at 24V, typ.
Efficiency
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5
A
86
87
88
89
90
91
Output Current
92
93
94%
120Vac
100Vac
230Vac
Power Losses
0 0.5 1 1.5 2 2.5 3 3.5 5
A
0
2
4
6
8
10
12W
120Vac
100Vac
230Vac
44.5
Output Current
Fig. 9-3 Efficiency vs. input voltage at 24V,
5A, typ.
Fig. 9-4 Losses vs. input voltage at 24V, 5A,
typ.
Efficiency
85 120
155
190 225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
4
6
8
10
12
14
16W
85 120
155
190 225 260Vac
Input Voltage
Nov. 2011 / Rev. 2.1 DS-QS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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