PSH150
user manual rev4
Page 7/15
3.1 Main DC output
PSH150 provides a DC output programmable from 5Vdc to 55Vdc with up to 12A output current and a
maximum output power of 150W. The maximum output current varies according to the programmed
output voltage and to the ambient temperature; in Figure 3 and Figure 4 the current and power
derating curves are reported.
Current Derating Curve
0
2
4
6
8
10
12
14
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Temperature [°C]
C
u
rr
e
n
t
[A
]
5V
12V
24V
48V
Figure 3: PSH150 current derating curves
Power Derating Curve
0
40
80
120
160
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Tem perature [°C]
P
o
w
er
[
W
]
5V
12V
24V and 48V
Figure 4: PSH150 power derating curves
The output is short circuit protected; in case of an output short circuit the output is switched off and an
hiccup cycle is started. A “short circuit” alarm code is reported on the display (§3.4.3).