Puls CD Series - Efficiency and Power Losses

CD10.241
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
10/27
8. E
FFICIENCY AND
P
OWER
L
OSSES
Input 24Vdc
Efficiency
Typ. 94.2% At 24V, 10A
Typ. 93.7% At 24V, 12A (Power Boost)
Average effi
ciency
*)
Typ. 94.3% At 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
Power losses
Typ. 1.75W At no output load
Typ. 6.8W At 24V, 5A
Typ. 14.7W At 24V, 10A
Typ. 19.5W At 24V, 12A
*) 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. 8-1 Efficiency vs. output current at 24V
output and 24Vdc input voltage, typ.
Fig. 8-2 Losses vs. output current at 24V
output and 24Vdc input voltage, typ.
Efficiency
2
90
92
94
89
95%
12A4 8
10
Output Current
6
91
93
Power Losses
0 2
4 8 10 12A
0
3
9
15
18W
6
6
12
Output Current
Fig. 8-3 Efficiency vs. input voltage at 24V,
10A, typ.
Fig. 8-4 Losses vs. input voltage at 24V, 10A,
typ.
Efficiency
18 20
22
26 28 32Vdc
95%
92.5
93.5
94.5
94.0
93.0
92.0
24
30
Input Voltage
Power Losses
13
14
15
16
17
18
19W
18 20
24
26 28 32Vdc
22 30
Input Voltage