Function Description
R&S
®
TS-PSU12
21
User Manual 1504.4524.12 ─ 05
The behaviour of the current limiting function can be configured. With the “regulate”
setting, the set current is controlled (default), with the “trip” setting, the system is
switched off in the case of a current flow above the set current value.
5.3 Measurement unit
The integrated measurement unit of the Power Supply/Load Module 12V R&S TS-
PSU12 consist of 16-bit ADC with a sampling rate of 10 kHz and a front end multi-
plexer for selecting different sources or measurement points. The measurement unit is
closely connected to the output stage of the associated channel and works on the
same internal measurement reference point.
5.3.1 Measurement options, resolution
The R&S TS-PSU12 offers the following measurement options:
●
Measurement of output voltage on the force pins
●
Measurement of voltage on the sense pins
●
Measurement of currents via internal shunt
When the output stage is switched to “internal sense” mode, any external voltage can
be measured on the sense pins. Without additional wiring only differential measure-
ment is possible, since the R&S TS-PSU12 cannot switch an internal ground connec-
tion to CHx_SHI or CHx_SLO. Due to an external wiring from CHx_LO to CHx_SLO
and closing of the ground relay, “single ended” measurement is also feasible. The dif-
ference in voltage may be up to 12 V. The maximum voltage of each individual signal
must not exceed 12 V against CHx_LO.
The voltage measurement range is always 12 V.
The current measurement range is specified by the setting of the R&S TS-PSU12. For
example, if the range is set to 10 mA, the range of the measurement unit will also be
±
10 mA.
5.3.2 Sampling
The measurement unit implemented on the R&S TS-PSU12 makes it possible to
record individual values, average values, or entire waveforms. To record transient pro-
cesses or current and voltage values over time, the R&S TS-PSU12 is able to record
the selected source at a sampling rate of up to 10 kHz and save measurement values.
The available memory depth is designed for up to 10000 measurement values. The
sampling rate, duration of recording, start delay, and triggering can be freely selected.
At the maximum sampling frequency, an interval of one second can still be measured.
Correspondingly longer recording is possible at lower sampling frequencies. The mea-
surement can be started via internal or external triggers. It is also possible to start the
measurement in the background and retrieve the measurement values later.
Measurement unit
