Power analysis (option R&S
RTO6-K31)
R&S
®
RTO6
1155
User Manual 1801.6687.02 ─ 05
Remote command:
Display Histogram
Available only for "Type" > "Continuous".
Enables the display of two histograms after the measurement is executed. The histo-
grams show the density distribution of the measurement results in dependence of the
frequency/ duty cycle in a graphic. Thus they illustrate the statistics of the measure-
ments.
Remote command:
Optimize scaling
Selects the scaling for the display of the results.
"Autoscale the signals"
Automatically selects the most appropriate scale for the display of the
results.
"Keep present settings"
The present display settings are not changed.
Remote command:
Report comment
In this field you can write a comment that is displayed in the measurement report, for
example, a measurement description.
Execute
Starts the "Modulation Analysis" measurement.
Remote command:
19.4.2
Dynamic on resistance
The "Dynamic ON Resistance" analysis measures the resistance of a switching device,
during operation. Because voltage and current may vary in time, the resistance is not
constant, thus it is called dynamic ON resistance. It is defined as the ratio dV/dI.
The resistance-related voltage should be measured during a stable part of the switch
node waveform, when the undershoot and ringing have decayed, after the high-to-low
voltage transition.
Required probes:
●
Differential voltage probe
●
Current probe
Control loop