onsemi
Wurth's passive components database added to onsemi's power-loss model generator

Collaboration Advances High-Accuracy Virtual Design of Power Apps

Nov. 13, 2024
A power-loss model generator was updated with passive components to more accurately model designs and accelerate time-to-market.

onsemi and Würth Elektronik announced the integration of Würth’s passive components database into onsemi’s Self-Service PLECS Model Generator (SSPMG). This web-based platform will help engineers create application-specific, high-performance PLECS (Piecewise Linear Electrical Circuit Simulation, a software tool developed by Plexim) models of complex power electronic applications, aiding in identifying and addressing performance bottlenecks early in the development cycle. 

Adding Würth Elektronik’s passive system components to SSPMG will enable the switching loss models generated to achieve higher precision than previously possible.

Legacy industry PLECS models don’t always include the wide range of component characteristics such as conduction, energy loss, and thermal impedance. SSPMG’s capabilities leverage onsemi’s physically scalable SPICE models based in physics and process variations for a more accurate representation of their behavior in the circuit. 

“SSPMG empowers onsemi customers to autonomously generate system-level PLECS models that are tailored to their specific power application,” said James Victory, Doctor of Philosophy, fellow, Modeling and Simulation Solutions, Power Solutions Group, onsemi. “Instead of going through long and costly fabrication-based cycles, customers develop and optimize their complete power systems virtually, enabling them to go to market faster.”

“With the seamless integration of Würth Elektronik’s database of SPICE models into onsemi’s SSPMG, design engineers can now select both the active onsemi components and the passive Würth Elektronik components for their application, generating a more accurate switching loss model,” said Dayana Cómbita, strategic partnership manager Europe, Würth Elektronik. “Together, we are paving the way to first-time-right, optimized system designs for our mutual customers.”

SSPMG loss models can be used on any given proprietary simulation platform, or uploaded into onsemi’s Elite Power Simulator (EPS). EPS provides direct insights into how a circuit topology will perform across onsemi’s EliteSiC family of products, PowerTrench T10 MOSFETs, and Field Stop 7 (FS7) IGBTs and IPMs. 

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About the Author

Alix Paultre 2 | Editor-at-Large

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.

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