Functional description
R&S
®
TS-PSM5
20
User Manual 1178.2809.02 ─ 01
5.1.3.2
Current measurement with load in standby mode
If now the small amount of residual current is to be determined by the load, if the latter
is in standby mode, another version of switching is chosen. The current-voltage con-
verter in the 50 A channels work in the range of 350 mA (typ.) to 50 A. At current
strengths below 350 mA (typ.) a return value of 0 A would be received from the IVI
software driver function using the method described above.
Small currents up to one ampere can be measured directly from the R&S TS-PSAM
module’s ammeter. If the current measurement gives a value via the high power chan-
nel’s current-voltage converter that is less than or equal to 1 A, then the switching as
shown in
can be used for the current measurement. With the channel 5 high
power relay opened, the entire current is conducted via matrix- and coupling relays on
the R&S TS-PWA3’s analogue bus and from there to the ampere meter of the R&S TS-
PSAM’s measurement module. These lines are coloured red.
The analogue bus lines of the R&S CompactTSVP and R&S PowerTSVP are designed
for a maximum current strength of 1 A.
R&S TS-PSM5