K Series Data Sheet
150 Watt DC-DC and AC-DC Converters
Dynamic Load Regulation
[V] Vo2
05102
Vo
05106_070805
15.75
Vod
Vo 1%
Vo 1%
Io1 = 5.00 A
Io1 = 3.75 A
Io1 = 2.50 A
Io1 = 1.25 A
Io1 = 0.50 A
15.50
Vod
td
td
15.25
15.00
14.75
14.50
14.25
14.00
t
t
Io/Io max
1
0.5
≥ 10 μs
≥ 10 μs
0
Fig. 9
Typical dynamic load regulation of V
Io2
[A]
o
0
1
2
3
4
5
6
7
Fig. 11
AK - LK2540: ΔVo2 (typ.) vs. Io2 with different I01
Output Voltage Regulation of Double Output Models
[V] Vo2
Note: If output 2 is not used, we recommend connecting it in parallel
with output 1. This ensures good regulation and efficiency.
05107_060805
26.0
Io1 = 3.0 A
Io1 = 2.0 A
25.5
25.0
24.5
24.0
23.5
23.0
Io1 = 1.0 A
Io1 = 0.5 A
Io1 = 0.3 A
Output 1 is under normal conditions regulated to Vo1 nom
.
Vo2 depends upon the load distribution. If both outputs are
loaded with more than 10% of Io nom, the deviation of Vo2
remains within 5% of the value of Vo1. The following 3 figures
show the regulation with varying load distribution.
Two outputs of a K2000 model connected in parallel will behave
like the output of a K1000 model.
[V] Vo2
Io2
[A]
0
0.5
1
1.5
2
2.5
3
3.5
4
05105_060805
12.6
Io1 = 6.0 A
Io1 = 4.5 A
Io1 = 3.0 A
Fig. 12
AK - LK2660: ΔVo2 (typ.) vs. Io2 with different I01
12.4
Io1 = 1.5 A
Io1 = 0.6 A
12.2
12.0
11.8
11.6
11.4
11.2
Io2
0
1
2
3
4
5
6
7
8
[A]
Fig. 10
AK - LK2320: ΔVo2 (typ.) vs. Io2 with different I01
APR 26, 2006 revised to MAY 15, 2006
Page 11 of 34
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