Fig 3-5 An Equivalent Circuit In Terms Of The Current Monitor - Prodigit 3270 Series Operation Manual

72 PRODIGIT
3.3.28. I-monitor
The I-monitor is provided as a socket. It is designed to enable the user to
Monitor the Electronic Load's input current or short current. The I-monitor's signal
Is 0V to 10V. This signal is proportional to the full scale current that the particular
Electronic Load is capable of.
For example. 3270: Imax = 37.5A therefore I-monitor 10V = 37.5A so 1V = 3.75A
Please refer to the specification Fig 1-1.1 to Fig1-1.20 for the maximum current that
each 3270 series Load is capable of.
The current monitor of this unit is NOT isolated. Please be careful when you connect an
oscilloscope. Improper connections are likely to cause damage.
connection rule on the following page.
IMonitor
R6
12V

Fig 3-5 An equivalent circuit in terms of the current monitor

T2
+
+
-
-
T1
Ref_V
T2
T1
R4
R5
Drain
Gate
X2
MOSFET_Nch
source
R1
Shunt R
R2
R3
Please follow the
Load+
Power Supply
5V
Load-