Datasheet

Version 20.00, July 2019
34 Rohde & Schwarz R&S
®
RTE Oscilloscope
R&S
®
RTE-K31
Power analysis
General description
The R&S
®
RTE-K31 power analysis option extends the R&S
®
RTE firmware with
measurement functionality focused on switched mode power supplies (SMPS) and
DC/DC converters.
Input
quality
evaluation of power quality at an
AC input; measures real power, apparent
power, reactive power, power factor and
phase angle of power, frequency, crest
factor, RMS of voltage and current
harmonics
measures up to the 40th harmonic of the
incoming line frequency; precompliance
checking for IEC 61000-3-2 (A, B, C, D),
RTCA DO-160, MIL-STD-1399, max. limit
checks
inrush current
measures peak inrush current; multiple
measurement zones configurable with
analysis of the post-inrush behavior
Switching/control loop
slew rate
The slope of current or voltage is
measured at start and end of the
switching cycle.
modulation
measures modulation of switching
frequency and duty cycle under steady
state and start-up conditions
dynamic on-resistance
measures resistance of the switching
transistor(s) in active state
Power path
efficiency
(only for 4 channel devices)
measures input and output power to
calculate the efficiency of an SMPS
loss
measures switching loss and conduction
loss of a power device
safe operating area (SOA)
checks violation of voltage and current
limits in which a power device can
operate without damage; current versus
voltage view (linear or log); violation
mask is user-defined and editable in
linear and log-log views
turn on/off
measures relationship between AC and
DC current, when turning the SMPS off
and on
Output
ripple
measures AC components of output
voltage and current, AC RMS, frequency,
duty cycles,
min./max./peak-to-peak amplitude
spectrum
FFT analysis of output, measurement of
frequency peaks
transient response
This measurement captures the device
behavior between the event of load
changes and stabilization.
includes peak (voltage, time), settling
time, rise time, overshoot and delay
Deskew
automated
By using the R&S
®
RT-ZF20 probe
deskew and calibration test fixture and
Rohde & Schwarz voltage and current
probes, the skew between the voltage
and current signal is compensated
automatically.
Reporting
easy reporting: Click to save a measurement. Report generation using user-selected
test results from historical and currently-active tests. Put repeated and/or different
measurements in one report.