R&S RTM3000 benchtop oscilloscope from Rohde&Schwarz

Rohde & Schwarz presents power electronics test solutions at PCIM Europe 2022

  • Rohde & Schwarz is presenting its latest test solutions for developers of power supplies and other power electronic systems at PCIM Europe, which takes place in Nuremberg from May 10 to 12, 2022.
  • The German company’s experts will share their know-how on applications such as stability analysis, power integrity and component testing, as well as debugging EMI issues and EMC precompatibility testing.

At PCIM Europe, visitors can experience test equipment like the recently introduced R&S RTO6 oscilloscope performing stability analysis and power integrity measurements.

When debugging and validating power rails, it is essential to ensure that power integrity requirements are met. According to Rohde & Schwarz, the inherent low noise of R&S RTO6 oscilloscopes enables accurate power integrity measurements at the millivolt level. The fast update rate of the oscilloscope allows to see infrequent ripple as well as periodic and random disturbance (PARD) anomalies. Part of the setup is the R&S RT-ZPR, an oscilloscope probe for characterizing power rails.

Another recent addition to the Rohde & Schwarz portfolio is the R&S LCX LCR meter, a general-purpose impedance tester. At PCIM, the R&S LCX200 is on display, which measures inductance (L), capacitance (C) and resistance (R) of components within the supported frequency range from 4 Hz to 10 MHz. In combination with an external sweep tool, users can conveniently measure impedance versus frequency of an electrolytic component. Other parameters like test voltage or test current can be used as sweep parameters.

Increasing switching speed in power electronics involves the risk of higher electromagnetic interference (EMI), turning EMC compliance into a challenge. Detecting design problems early makes correction easier and more cost effective. Rohde & Schwarz demonstrates solutions at PCIM that integrate EMI testing into the product development process of power supplies – from oscilloscopes as tools for EMI debugging to signal and spectrum analyzers for precompliance testing.

The R&S RTO6 oscilloscopes with their high dynamic range and input sensitivity of 1 mV/div at full measurement bandwidth make it possible to detect even weak emissions. They offer FFT capabilities, which are ideal for EMI analysis in the frequency domain. The zone trigger in the FFT is ideal for detecting sporadic emission frequencies.

The R&S FPL1000 signal and spectrum analyzer, which combines the functions of a benchtop instrument with the portability of a handheld instrument, also offers EMI precompliance measurements when equipped with the optional R&S FPL1 K54 EMI measurement application. Features include EMI detectors such as peak, quasi-peak, CISPR-average and RMS-average (CISPR 16-1-1) and 6 dB filter characteristic (CISPR 16-1-1 and MIL-STD-461 / DO-160).

For automated certification and precompliance tests, Rohde & Schwarz is also showing its R&S ELEKTRA EMC test software. The software is available in several versions: with interactive test sequences for developers or as automatic EMC test software for device certification.