Datasheet
QS10.301
Q-Series
30V, 8A, SINGLE PHASE INPUT
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 91.5% 92.6% 93.5% at 30V, 8A
Average efficiency *) typ. 91.7% 92.4% 92.4% 25% at 2A, 25% at 4A,
25% at 6A, 25% at 8A
Power losses typ. 4.4W 4.9W 6.1W at 30V, 0A
typ. 22.4W 19.1W 16.7W at 30V, 8A
*) 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 30V,
typ.
Fig. 9-2 Losses vs. output current at 30V,
typ.
Efficiency
1234567
8A
86
87
88
89
90
91
Output Current
92
93
94%
A
.
.
.
1
0
0
V
a
c
B
.
.
.
1
2
0
V
a
c
C
.
.
.
2
3
0
V
a
c
A
B
C
Power Losses
012345678A
0
3
12
15
18
21
24W
A
B
C
6
9
A
.
.
.
1
0
0
V
a
c
B
.
.
.
1
2
0
V
a
c
C
.
.
.
2
3
0
V
a
c
Output Current
Fig. 9-3 Efficiency vs. input voltage at 30V,
8A, typ.
Fig. 9-4 Losses vs. input voltage at 30V, 8A,
typ.
Efficiency
9/26
85 120
155
190 225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
9
12
15
18
21
Input Voltage
24
27W
85 120
155
190 225 260Vac
Dec. 2014 / Rev. 2.2 DS-QS10.301-EN
All parameters are specified at 30V, 8A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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