Voltage Drop Of Pf1 And Pf2 Input - EM TEST PFS 200N Series Manual For Operation

EM TEST
9.3.

Voltage drop of PF1 and PF2 input

The internal voltage drop depends on the built in element and the actual current. Figures
9.3 to 9.6 shows the internal voltage drop in relation to the current.
PF1 : MOS field effect transistor
PF2 : DSEI Diode
Fig. 9.2 : PFS 200
Voltage correction
Using a PFS 200 for control an external source, the analogue output 0-10V compensates the internal voltage
drop. The PFS 200 increases the dc-control voltage for the source:
Voltage drop at PF 1 input
Voltage dip at PF2 input
Generator
PFS 200N50
PFS 200N100
Manual for Operation
: Vset + 0.2V
: Vset + 0.9V
Voltage drop on PF1
Fig. 9.3:
Fig. 9.5:
V 3.08
PFS 200 Series
Voltage drop on PF2
Fig. 9.4:
Fig. 9.6:
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