Rohde & Schwarz Demonstrates High-Side Current Measurement Solutions
Rohde & Schwarz Demonstrates High-Side Current Measurement Solutions 
At APEC 2026, Rohde & Schwarz showcased its latest solutions for accurate high-side current measurement, addressing the growing challenges engineers face in high-voltage, high-speed power systems. Speaking at the booth, Sarah Gross highlighted how their optically isolated probe technology is helping engineers capture more reliable measurements in demanding applications.
As power electronics continue to evolve—especially in areas like electric vehicles, renewable energy, and high-speed rail—the need for precise measurement tools has become more critical than ever. Rohde & Schwarz is focused on delivering solutions that improve accuracy in environments where traditional measurement techniques can fall short.
Improving High-Side Current Measurements
The demonstration at the booth focused on measuring current across a shunt resistor using an optically isolated probe. This approach allows engineers to perform high-side current measurements without being affected by large common-mode voltages, which are increasingly common in modern power systems.
Unlike traditional differential probes, optically isolated probes provide greater immunity to noise and interference, making them ideal for applications where signals are switching quickly and operating at high voltages.
Compatibility Across Test Environments
One of the key advantages of this solution is its flexibility. The probe is not limited to Rohde & Schwarz oscilloscopes—it can be used with equipment from other vendors as well. With an external control box and power supply, engineers can integrate the probe into their existing lab setups without needing to replace their current test equipment.
This makes it easier for teams to upgrade their measurement capabilities without overhauling their entire workflow, a major benefit in fast-paced development environments.
Why Accuracy Matters More Than Ever
As systems move toward higher voltages and faster switching speeds, common-mode voltage becomes a significant challenge in measurement accuracy. In applications such as EV powertrains, solar inverters, and industrial power converters, inaccurate readings can lead to design inefficiencies or missed performance targets.
Rohde & Schwarz’s optically isolated probe technology helps engineers overcome these challenges by delivering more accurate high-side measurements, even in electrically noisy environments. This is especially important as designers push for higher efficiency, improved reliability, and tighter performance margins.
Built for Modern Power Electronics
With increasing demands on power systems, engineers need tools that can keep up with rapid switching speeds and higher energy levels. Solutions like this are designed to support those needs, giving engineers confidence in their measurements and helping them validate designs more effectively.
At APEC 2026, Rohde & Schwarz made it clear that measurement technology is evolving alongside power electronics—and that accurate data is a key part of building the next generation of high-performance systems.
To learn more, visit https://www.rohde-schwarz.com/.
