Keysight Technologies Unveils Revolutionary Isolated Probing Technology at APEC 2025
Keysight Technologies, Inc. (NYSE: KEYS) has announced a significant advancement in the field of power device testing with the introduction of its optically isolated differential probing family. This cutting-edge technology aims to enhance the efficiency and performance testing of fast-switching devices, particularly wide bandgap GaN (Gallium Nitride) and SiC (Silicon Carbide) semiconductors. The new voltage probes will be showcased at the Applied Power Electronics Conference (APEC) 2025, taking place at Keysight’s booth (#829), alongside the company’s MXR B and HD3 series of oscilloscopes.
1. Addressing the Challenges of High-Voltage Measurements
The validation of floating half-bridge and full-bridge architectures, which are commonly employed in power conversion, motor drives, and inverters, requires precise measurements of small differential signals that are often superimposed on high common-mode voltages. This task can be fraught with challenges, including fluctuations in voltage sources relative to ground, noise interference, and safety concerns.
Keysight’s isolated differential probes come equipped with galvanic isolation capabilities, effectively rejecting common-mode voltages. This feature allows power electronics engineers to accurately and safely measure floating circuits in high-voltage and noisy environments, a critical advancement for high-voltage applications such as electric vehicles (EVs), solar energy systems, and battery management systems.
2. Unmatched Performance in Probing Technology
The new isolated differential probes boast an impressive common-mode rejection ratio, offering up to 10 billion times greater rejection compared to standard differential probes. This makes them particularly suitable for high-voltage, high-side measurements. With a bandwidth of up to 1 GHz and a differential voltage range of ±2,500 V, these probes enable engineers to conduct accurate analyses of fast-switching GaN and SiC devices.
Expert Insights
Robert Saponas, Vice President and General Manager of Keysight’s Digital and Photonics Center of Excellence, commented on the innovation: “Keysight recognizes the future of power integrated circuits going beyond Moore’s law, and we are committed to equipping our customers with the best power testing technology for their next breakthrough. Introducing Keysight’s isolated probes expands our suite of power solutions that streamline our customer's power integrity, supply, and efficiency testing workflow.”
3. Explore Innovations at APEC 2025
Industry professionals and attendees at APEC 2025 are encouraged to visit Keysight’s booth (#829) to learn more about this groundbreaking probing technology. In addition to the isolated probes, Keysight will showcase other state-of-the-art solutions across power electronics modeling, device characterization, power integrity analysis, teaching labs, and power source emulation.
4. Conclusion
Keysight Technologies continues to lead the charge in innovating testing solutions that empower engineers across various high-tech sectors. With the introduction of its isolated probing technology, the company is poised to drive significant advancements in the efficiency and performance of fast-switching power devices, reinforcing its commitment to shaping the future of power electronics.
For more information on Keysight’s isolated differential probes and other advanced testing solutions, please visit the Keysight Newsroom or explore the dedicated product pages for the Optically Isolated Differential Probe, MXR B-Series Real-Time Oscilloscopes, and InfiniiVision HD3 Series Oscilloscopes.
