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SPS5000X Series User Manual
WWW.SIGLENT.COM 32
Theory of Operation
This chapter introduces the function and principles of operating the SPS5000X
series power supply.
Operating Area Description
SPS5000X are DC switching power supplies with high voltage and current
output. All models have continuous voltage (CV) and continuous current (CC)
output control modes with working ranges limited only by the output power. The
working area is determined by the rated output power and the rated voltage and
current.
When the total output power of the power supply (voltage x current output) is
less than the rated power output, the SPS operates as a typical constant voltage
and constant current power supply.
When the total output power (voltage x current output) is greater than the rated
power output, the effective output is limited to 105% of the rated power. At this
time, the output voltage and current are only related to the load value as shown
below:
I(A)
V(V)
10
20
30
40
50
60
70
80
5 10 15 20 25 30 35 40
4.5A
24V
9A
12V
I(A)
V(V)
20
40
60
80
100
120
140
160
2.5 7.5 15
2.25A
48V
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