FAQ
Technical FAQs for Power Magnetics
This FAQ hub answers the most common technical questions from power engineers, buyers, and sourcing teams—covering topics such as inductance behavior, saturation current, core materials, EMI, reliability, and production processes.
All answers are written to support application-based design decisions and guide users toward the most suitable Coilmaster solutions.
Switching converters, I/O modules, and nearby motor drives can inject both conducted and radiated noise into the control power rails.
Read morePLC systems run continuously for years. Small thermal drift can accumulate and affect regulation accuracy and long-term reliability.
Read moreThey prevent noise from traveling between the PLC and the factory power bus, reducing EMC failures and interference between cabinets.
Read moreMultilayer inductors are ideal for point-of-load filtering close to ICs where current is lower but noise sensitivity is high.
Read moreIndustrial PLCs often must meet IEC 61000-6-2 and IEC 61000-6-4 for immunity and emissions.
Read moreUncontrolled leakage fields can introduce jitter, offset, or communication errors in sensitive circuits.
Read moreInput voltage, output rails, switching frequency, load current, allowable ripple, ambient temperature, and EMC target levels.
Read moreHigh-frequency switching, long cable runs, and high voltage transitions generate conducted and radiated noise.
Read moreLosses accumulate over thousands of operating hours, reducing total harvested or stored energy.
Read moreHigh current pushes the core toward saturation, reducing inductance and increasing ripple.
Read moreWhen high current and efficiency are critical, such as in DC-DC and inverter stages.
Read moreGrid-connected systems must meet standards such as IEC 61000 and regional grid-interconnection rules.
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