Datasheet

QS10.121
Q-Series
12V, 15A, SINGLE PHASE INPUT
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 90.7% 91.5% 91.8% at 12V, 15A
Average efficiency *) typ. 91.0% 91.2% 90.6% 25% at 3.75A, 25% at 7.5A,
25% at 11.25A, 25% at 15A
Power losses typ. 3.8W 3.9W 4.9W at 12V, 0A
typ. 18.5W 16.7W 16.1W at 12V, 15A
*) 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 12V,
typ.
Fig. 9-2 Losses vs. output current at 12V, typ.
Efficiency
3
86
87
88
89
90
91
92
85
93%
120Vac
100Vac
230Vac
15A
79 13
Output Current
511
Power Losses
0 3 6 9 12 15A
3
5
9
11
13
15
19W
120Vac
100Vac
230Vac
Output Current
7
17
Fig. 9-3 Efficiency vs. input voltage at 12V,
15A, typ.
Fig. 9-4 Losses vs. input voltage at 12V, 15A,
typ.
Efficiency
85 120
155
190 225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
8
12
16
20
Input Voltage
24W
85 120
155
190 225 260Vac
Nov. 2011 / Rev. 2.1 DS-QS10.121-EN
All parameters are specified at 12V, 15A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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