Teledyne Lecroy, a global specialist in test instruments, offers three key solutions for DC noise ripple measurement, motor driver analysis, and double pulse testing that enable clear low-signal measurements even in high-voltage environments, accurately identifying only pure DC components and original noise without distortion.

Teledyne Lecroy participated in the 2025 Power Electronics Conference held at the Pyeongchang Alpensia Convention Center from July 7 to 10 and introduced three high-precision power solutions for DC noise ripple measurement, motor driver analysis, and double pulse testing.

The product description was handled by Director Oh Chang-hoon of Teledyne LeCroy.


The first product on display is the RP4060 rail probe, specialized for measuring DC noise ripple.

Conventional passive probes can generate noise due to the inductance (L) of the ground lead, but the RP4060 is designed to accurately detect only the pure DC component and the original noise without such distortion.

This can significantly improve the precision and stability of power rail analysis.

The second is a motor driver analysis solution utilizing an 8-channel oscilloscope.
The output three-phase voltage of the inverter is captured line to line, and the three phase currents are analyzed to measure real power, application power, power factor, angle, etc.

When sensors are connected, it is possible to analyze the total efficiency of the motor, and through a demonstration of three-phase power calculation and efficiency measurement, the technology has been proven to be immediately applicable to real-world environments.

The final key solution is the Double Pulse Test setup.

A dedicated pulse is generated using Infineon’s gate drive evaluation board module and T3 AWG, and the voltage between the high-side gate and source is precisely measured using an optical isolation probe.

This probe features a higher dynamic range and common mode rejection rate (CMRR) compared to standard differential probes, enabling clear measurements of low signals even in high-voltage environments.

A perfect test environment was established using HVD3220 high-voltage probes on the drain and source sides, and Logoskik foil for current measurement.

"Chang-hoon Oh, Director at Teledyne LeCroy, stated, 'At this academic conference, we received an enthusiastic response from attendees by showcasing various test scenarios in real-time, including noise removal technology, power efficiency analysis, and high-speed switching performance evaluation.'"