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.

Alix Paultre

Related To: Keysight Technologies

Check out our PCIM 2023 coverage. This video is also part of the TechXchanges: Gallium 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 V_gs measurements, and solderless contact technology allows for measurements without soldering large contact pads.

Alix Paultre | Editor-at-Large, Electronic Design

An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the US military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications in the embedded electronic engineering space. Alix currently lives in Wiesbaden, Germany.

Also check out his YouTube watch-collecting channel, Talking Timepieces.