Amptek X-123 Посібник користувача - Сторінка 7
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Друкувати сторінкуPower
Characteristic
Supply Voltage
Supply Current
Inrush Current
Input Capacitance
The power dissipated by the X-123 depends most strongly on the detector temperature, which is set in
software. At full cooling, T=70
as much, power dissipation decreases to less than half of this. The table above is for a typical detector, but
the actual value depends on the type of detector (e.g. its area) and varies between units.
Note that USB power is rated to 2.5 W, therefore the X-123 cannot be powered over USB.
The inrush current is that required to charge up a set of capacitors, with a total of 50 F capacitance.
X-123 User Manual
Symbol
Min
Typ
V
4.0
5.0
In
I
IN
0.70
0.50
0.40
0.35
I
2
INRUSH
C
50
IN
o
C, the X-123 draws about 0.7 A at 5 V, or 3.5 W. If the detector is not cooled
Max
Units
Conditions
5.5
V
0.9
A
V
= 5.0 V, initial cooldown
IN
A
V
= 5.0 V, steady state full cooling
IN
= 5.0 V, T=70 C
A
V
IN
= 5.0 V, T=50 C
A
V
IN
A
V
= 5.0 V, no cooling or bias
IN
<100 sec
A
F
7