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Magnetic Components/Magnetic Core Materials & Structures: Analysis, Comparison & Selection Guide
Electronics / Circuits

Magnetic Components/Magnetic Core Materials & Structures: Analysis, Comparison & Selection Guide

This article provides a systematic guide to magnetic core selection for power electronics, covering key parameters (permeability, saturation, core loss, Curie temperature), comparing materials like ferrite, sendust, permalloy, amorphous and nanocrystalline alloys, and reviewing core structures (EE, PQ, toroidal). It offers engineering recommendations for AC/DC, DC/DC, PFC, and inverter applications, emphasizing frequency matching, loss control, and cost balance. Engineers gain practical reference for choosing cores.

Published on 2025-09-10
Measured Comparison of Capacitors and Inductors Across Different Brands and Types (D, Q, ESR, X)
Electronics / Circuits

Measured Comparison of Capacitors and Inductors Across Different Brands and Types (D, Q, ESR, X)

Using a Zhongchuang ET4410 LCR bridge, the author measured inductance, capacitance, Q/D, ESR, and reactance of various inductors and capacitors at 100Hz–100kHz. Iron-silicon-aluminum toroidal inductors showed peak Q at 10kHz; SMD inductors performed better at high frequency. Solid capacitors significantly outperformed electrolytics, with Rubycon best among electrolytics. Capacitance dropped after 10kHz for electrolytics, while monolithic capacitors had high low-frequency ESR/reactance. The article provides full data tables and a spreadsheet.

Published on 2025-02-15

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