| Power analysis |
| General description |
The R&S RTA-K31 power analysis option extends the R&S RTA 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 334th 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 and electrical charge within up to 3 configurable measurement zones to analyze the inrush and post-inrush behavior |
| consumption |
long term measurement of consumed power and energy to analyze nonperiodical signals of e.g. standby devices |
| Switching/control loop |
slew rate |
The minimum and maximum slew rate of current or voltage is measured at start and end of the switching cycle. |
| modulation |
measures modulation of switching frequency, duty cycle (±) and pulse width |
| dynamic on-resistance |
measures resistance of the switching transistor(s) in active state |
| Power path |
efficiency |
measures input and output power to calculate the efficiency of a power device |
| switching 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 userdefined and editable in linear and log-log views; save/load of masks; export of mask violation data |
| turn on/off time |
measures relationship between AC and DC current, when turning SMPS off and on |
| Output |
ripple |
measures AC components of output voltage or current, AC RMS, mean, period, frequency, duty cycles, min./max./peak-topeak 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 signals is compensated automatically. |
| Zero offset |
automated |
automatic compensation of input offset |
| Reporting |
Report data can be saved for every measurement. Report generation using user selected test results from historical and current tests. Put repeated and/or different measurements in one report. R&S Oscilloscope Report Creator can be downloaded from Rohde & Schwarz website free-of-charge. |