Puls Dimension Q-Series, Manual, Page: 9 / 27

QTD20.241
Q-Series
24V, 20A, DC I
NPUT
8. E
FFICIENCY AND
P
OWER
L
OSSES
DC 600V
Efficiency typ. 95.0% At 24V, 20A
Average efficiency *) typ. 94.4% 25% at 5A, 25% at 10A, 25% at 15A and 25% at 20A
Power losses typ. 7.7W At 24V, 0A (no load)
typ. 12.8W At 24V, 10A (half load)
typ. 25.5W At 24V, 20A (full load)
*) The average efficiency is an assumption for a typical application where the DC/DC converter 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. 8-1 Efficiency vs. output current at 24V,
typ.
Fig. 8-2 Losses vs. output current at 24V, typ.
Efficiency
4 6 8 10 12 14 16 18 20A
88
89
90
91
92
93
94
95
96%
Output Current
Power Losses
0 2 4 6 8 10 12 14 20A
0
5
10
15
20
25
30W
16 18
Output Current
Fig. 8-3 Efficiency vs. input voltage at 24V,
20A, typ.
Fig. 8-4 Losses vs. input voltage at 24V, 20A,
typ.
Efficiency
350 450 650 750 850Vdc
92.5
93.0
93.5
94.0
94.5
95.0
95.5%
Input Voltage
550
Power Losses
350 450 550 650 850Vdc
23.0
25.0
27.0
29.0
31.0
33.0
35W
750
Input Voltage
Oct. 2016 / Rev. 2.0 DS-QTD20.241-EN
All parameters are specified at 24V, 20A, 600Vdc input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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