Datasheet

CPS20.241-D1
C-Series
24V, 20A, DC/DC CONVERTER
9. EFFICIENCY AND POWER LOSSES
DC 110V DC 300V
Efficiency typ. 93.1% 94.6% at 24V, 20A
typ. 93.0% 94.4% at 24V, 24A (Power Boost)
Average efficiency
*)
typ. 91.8% 93.4% 25% at 5A, 25% at 10A,
25% at 15A. 25% at 20A
Power losses typ. 7.6W 2.7W at 24V, 0A
typ. 18.6W 15.8W at 24V, 10A
typ. 35.6W 27.4W at 24V, 20A
typ. 42.9W 34.2W at 24V, 24A (Power Boost)
*) 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. 9-1 Efficiency vs. output current at 24V,
typ
Fig. 9-2 Losses vs. output current at 24V, typ.
Efficiency
4 6 8 10 12 14 18 20 24A
88
89
90
91
92
93
94
95
96%
Output Current
16 22
a) 110Vdc
b) 300Vdc
b
a
Power Losses
0 2 6 8 12 14 24A
10
0
15
20
30
40W
18 20
35
4 10 16
Output Current
22
b
a
5
25
a) 110Vdc
b) 300Vdc
Fig. 9-3 Efficiency vs. input voltage at 24V,
20A, typ.
Fig. 9-4 Losses vs. input voltage at 24V, 20A,
typ.
Efficiency
80 140
200
260 320 380Vdc
90
91
92
93
94
95
96%
Input Voltage
Power Losses
10
15
20
25
30
35
40W
80 140
200
260 320 380Vdc
Input Voltage
Oct. 2013 / Rev. 1.2 DS-CPS20.241-D1-EN
All parameters are specified at 24V, 20A, 300Vdc, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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