Datasheet

AN4165 Line/load regulation and output voltage ripple
Doc ID 023661 Rev 1 13/37
6 Line/load regulation and output voltage ripple
The output voltage of the board has been measured in different line and load conditions.
The results are shown in
Ta ble 4 . The output voltage is practically unaffected by the line
condition.
The ripple at the switching frequency superimposed at the output voltage has also been
measured and the results are given in
Table 5 .
Table 4. Output voltage line-load regulation
V
IN
[V
AC
]
V
OUT
[V]
No load 50% load 75% load 100% load
90 11.94 11.91 11.92 11.92
115 11.94 11.91 11.92 11.92
150 11.94 11.92 11.91 11.91
180 11.94 11.92 11.91 11.91
230 11.94 11.92 11.91 11.91
265 11.94 11.92 11.91 11.91
Figure 12. Line regulation Figure 13. Load regulation
AM13366v1
11.7
11.8
11.9
12
12.1
80 105 130155180 205 230255
V
OUT
[V]
VI
N
[V
AC
]
0
25%
50%
75%
100%
AM13367v1
11.7
11.8
11.9
12
12.1
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1
V
OUT
[V]
Iout[A]
90
115
230
265
Table 5. Output voltage ripple at half and full load
V
IN
[V
AC
]
V
OUT
[mV]
Half load Full load
90 17 23
115 16 21
230 18 25
265 17 24