Double-Pulse Tester and Analyzer Measures WBG Power Modules

May 31, 2023
Keysight's solution measures wide-bandgap power semiconductor dynamic characteristics for discrete devices and power modules, including characteristics like turn-on, turn-off, switching, reverse recovery, and gate charge.

Check out our PCIM 2023 coverage. This video is also part of the TechXchangesGallium Nitride (GaN) and Silicon Carbide (SiC).

The PD1550A from Keysight Technologies performs measurements of wide-bandgap semiconductor power modules, ensuring repeatable, reliable double-pulse test (DPT) results for the dynamic characterization of wide-bandgap (WBG) power modules.

Features include probe compensation, offset adjustment, de-skewing, and common-mode noise rejection, with an innovative measurement topology and layout. A semi-automated calibration routine, which corrects for system gain and offset errors, was specifically developed for this system, along with de-embedding techniques to compensate for inductive parasitics in the current shunt.

True Pulse Isolate Probe technology enables accurate high-side Vgs measurements, and solderless contact technology allows for measurements without soldering large contact pads.

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