Resonant Method-based Fully Automated Core Loss Measurement System for Sub-MHz Magnetics With Switched Capacitor Sequence
This paper presents a fully automated resonant core‑loss measurement system for sub‑MHz magnetics that replaces manual tuning and heavy FFT workflows with digitally controlled switched‑capacitor sequences and onboard signal processing. The method yields large sweeps of loss data quickly (thousands of points in ~20 s claimed) and is designed to be integrated in lab and production test benches, potentially turning core‑loss characterization into a product feature of mainstream power‑electronics instrumentation.
Linked assets
Monitor test & measurement and analog/microcontroller suppliers for product features or application notes implementing the technique. Relevant tickers: KEYS (test instruments, RF/power test gear + software), EMR (modular instrumentation/automation), ADI (precision analog, converters, embedded processing), TXN (MCU, analog switches and signal-chain components).
Direct exposure to RF/power test gear + software; watch for app notes/product launches targeting magnetics loss automation.
NI modular instrumentation/automation could be used to implement similar automated resonance measurement benches.
Precision analog + converters + embedded processing content if architectures are commercialized.
MCU/analog switch and signal-chain content in control/measurement boxes.
Source proof
Source proof: Strong source proof | 5 extracted claims | 4 directional assets | 1 supporting author | headline-like title review
The paper describes a resonant measurement setup for sub‑MHz magnetics using digitally controlled switched‑capacitor sequences to step resonance and onboard signal processing to extract core loss without manual tuning or post‑process FFTs. Authors report fast, dense-point sweeps (1000+ points in ~20 s) and emphasize automation suitable for lab and production environments. The work is currently an academic/engineering paper (arXiv) and demonstrates method and timing claims in a research context rather than in commercial hardware deployments.
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Paper proposes a fully automated resonant core-loss measurement setup for sub‑MHz magnetics using digitally controlled switched-capacitor sequences plus onboard signal processing, replacing manual tuning + heavy FFT workflows. If commercialized, it reduces magnetics characterization time (1000+ points/20s) and labor, potentially accelerating development cycles for high‑frequency power magnetics used in EV/inverter, data-center/AI power, and industrial supplies. Near-term investability hinges on whether this becomes a feature in commercial test/measurement platforms or is adopted broadly by magnetics manufacturers and power-electronics OEM labs.
Supporting authors
Single‑author technical paper (arXiv preprint). The contribution is a methods/measurement innovation that would need productization and vendor adoption to become broadly investable.
Unlock full thesis monitoring
Watch for: vendor app notes, demo integrations into KEYS/EMR test platforms, ADI/TXN component reference designs, and OEM or magnetics‑manufacturer adoption. Near‑term investability hinges on commercialization by test‑equipment vendors or uptake by power‑electronics labs.