IEC 61558 vs IEC 62368-1: Which Safety Standard Applies to Your Transformer
Scope, creepage, thermal evidence and marking differences between the transformer standard and the hazard-based equipment standard.
UL 1446 Insulation Systems: What Magnetic Component Buyers Must Verify
Which insulation system file covers your transformer, and what evidence a buyer should demand before tooling release.
Magnetic Core Storage and Handling: Shelf Life, Moisture and Rust Control
A ferrite core is a ceramic: hard, brittle, and hygroscopic at the surface. An iron powder core is a pressed composite that can rust at an exposed grain boundary. Neither survives
Class-D Audio Amplifier Inductors: Core Selection and Distortion Control
Class-D audio amplifiers put a magnetic component directly in the signal path, in a way that switching power supplies do not. The output inductor’s linearity, saturation behaviour
Inductor Design for GaN and SiC Converters: High Frequency Magnetics Guide
GaN and SiC devices push switching frequencies from 100 kHz into the 300 kHz–2 MHz range. That shrinks the passive components in theory — but only if the magnetic material and the
Transformer Window Utilization and Fill Factor: How to Calculate and Improve It
Window utilisation — the fraction of the bobbin window actually filled with copper — is the number that decides whether a design fits. It is also the number most often assumed rath
Triple Insulated Wire vs Margin Tape: Meeting Reinforced Insulation in Small Bobbins
Reinforced insulation in a small transformer is fundamentally a space problem. The two accepted ways to solve it are triple insulated wire and margin tape, and the choice changes w
Servo Drive and Robot Joint Magnetics: Output Reactors, CMCs and Gate Drive Transformers
Servo drives and robot joint actuators share a magnetic problem: a PWM inverter feeding a motor through a cable, inside a cabinet full of switching noise, with an encoder that must
Magnetic Components for Home Appliance Inverter Drives: Compressor, Fan and PFC
Every inverter air conditioner, refrigerator, washing machine and heat-pump compressor sold today contains at least one magnetic component that did not exist in the same product a
Inductance Tolerance: How ±20% Affects DC-DC Converter Performance
An inductor specified as 10 µH ±20% is not a 10 µH inductor — it is a component that may deliver 12 µH or 8 µH in your assembly. In a buck converter that tolerance translates direc