A SERVICE OF

logo

7) Use the following formulas to calculate the efficiency:
Efficiency= (Pout/Pin) × 100(%)
Pin = Iin × Vin
Pout = Iout × Vout
The following graph shows the efficiency results of the S48SS/S48SR
converters measured at different operating points.
50
55
60
65
70
75
80
85
90
0.5 1 1.5 2 2.5 3 3.5 4 4.5
OUTPUT CURRENT (A)
EFFICIENCY (%)
36Vin
48Vin
75Vin
Appendix A- Evaluation Board Schematic
VIN-
VIN+
SVin+
C3
68u/100V
COPPER
C2
NC
L1
NC BNC1
2
3
1
SW1
NC
SVin-
NCC1
ZD1NC
R1
NC
ON/OFF
Floating
Hi
Low
J1
NC
J3
0
J2
NC
UP
DOWN
OFF
R2
NC
R3
NC
VR1
100K
2
1
3
SW2
VOUT+
TRIM
VIN+
VIN-
VOUT-
C101
NC
C102
NC
C104
NC
C103
NC
C107
NC
C108
NC
VR2
100K
J4
0
C109
NC
C110
NC
C105
1u/25V
C106
10u/25V
VOUT+
BNC2
VOUT-
10