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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.

发布于 2025-09-10
Built a Small Solar Power Station: 3 Solar Panels Generate 4 kWh Daily
Casual Notes on Life

Built a Small Solar Power Station: 3 Solar Panels Generate 4 kWh Daily

A home-built rooftop solar array uses three 350 W panels (two monocrystalline, one polycrystalline) wired in parallel with an MPPT controller, grid-tied inverter, and lead-acid battery storage. The inverter outputs a fixed 400 W to offset the home network cabinet's load. Sunny days generate about 4 kWh daily; cloudy days about 2 kWh. No anti-backflow protection was installed due to wiring complexity.

发布于 2025-05-13
LADS D1500 UPS Teardown Analysis
Reviews & Teardown

LADS D1500 UPS Teardown Analysis

This teardown of a LADS D1500 UPS reveals a line-frequency inverter design with an H-bridge MOSFET circuit, transformer, and two 12V/9Ah batteries. Testing showed rapid battery degradation beyond warranty, ~77% conversion efficiency at 104W input, and ~18W no-load power draw. Readers gain insight into internal components, circuit topology, and real-world performance.

发布于 2025-02-04

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