https://elexnova.com/news.html Elexnova Technical Insights publishes engineering articles on inductor selection, high frequency transformer design, EMI filtering, power supply design and magnetic component applications. en Mon, 28 Sep 2026 00:00:00 GMT https://elexnova.com/news/miden-factory-capability-update.html https://elexnova.com/news/miden-factory-capability-update.html Company Updates Mon, 28 Sep 2026 00:00:00 GMT A look at the production base behind MiDEN magnetics: 500,000 pcs/day capacity, ISO9001:2015 quality management, in-house engineering and OEM/ODM sample support. https://elexnova.com/news/common-mode-choke-vs-differential-mode-choke.html https://elexnova.com/news/common-mode-choke-vs-differential-mode-choke.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT Compare noise paths, magnetic structures and impedance behavior to decide when a common mode choke, a differential mode inductor or a combined filter stage is the right answer. https://elexnova.com/news/common-mode-choke-working-principle.html https://elexnova.com/news/common-mode-choke-working-principle.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT How a common mode choke uses flux cancellation to block common mode noise while carrying load current, and which impedance, current and balance data should be checked before selection. https://elexnova.com/news/emi-suppression-in-power-electronics.html https://elexnova.com/news/emi-suppression-in-power-electronics.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT Reduce EMI in power electronics by separating noise modes, controlling switching loops and selecting magnetic components by impedance across frequency rather than inductance alone. https://elexnova.com/news/emi-suppression-in-power-supplies.html https://elexnova.com/news/emi-suppression-in-power-supplies.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT Practical EMI suppression for power supplies using chokes, transformer construction, shielding, layout control and grounding, with the measurements engineers should request from a supplier. https://elexnova.com/news/how-to-select-power-inductor-for-dc-dc-converter.html https://elexnova.com/news/how-to-select-power-inductor-for-dc-dc-converter.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT Ripple current, saturation current, thermal rise and DCR explained for buck, boost and buck-boost designs, plus the specification sheet a magnetics factory needs to quote accurately. https://elexnova.com/news/toroidal-vs-drum-core-inductors.html https://elexnova.com/news/toroidal-vs-drum-core-inductors.html Technical Articles Sun, 21 Jun 2026 00:00:00 GMT Choose between toroidal and drum core structures by magnetic containment, manufacturability, cost, board space and the thermal demand of the application. https://elexnova.com/news/choosing-magnetic-core-material.html https://elexnova.com/news/choosing-magnetic-core-material.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Ferrite, iron powder, alloy powder and tape-wound cores compared by permeability, core loss, saturation behavior, temperature stability and cost for a given switching frequency. https://elexnova.com/news/common-causes-transformer-failure.html https://elexnova.com/news/common-causes-transformer-failure.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Overheating, insulation breakdown, saturation, winding defects and mechanical stress are the usual failure routes in the field. Here is how each one is detected and prevented. https://elexnova.com/news/custom-magnetic-components-industrial-automation.html https://elexnova.com/news/custom-magnetic-components-industrial-automation.html Applications Thu, 11 Jun 2026 00:00:00 GMT Automation equipment needs rugged, low-noise magnetics for drives, PLC power stages and sensing circuits. See how custom designs are matched to those constraints. https://elexnova.com/news/custom-transformer-manufacturing-process.html https://elexnova.com/news/custom-transformer-manufacturing-process.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT From drawing review and bobbin or core selection to winding, impregnation, electrical testing and packing: what actually happens between an RFQ and a delivered custom transformer. https://elexnova.com/news/emi-filter-design-basics.html https://elexnova.com/news/emi-filter-design-basics.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Build an EMI filter stage from the noise path outward: separating common mode and differential mode noise, placing chokes and capacitors, controlling grounding and preparing for compliance testing. https://elexnova.com/news/high-frequency-transformer-design-guide.html https://elexnova.com/news/high-frequency-transformer-design-guide.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT The design flow for high frequency transformers: turns ratio, core and bobbin selection, winding loss, insulation coordination and thermal review for switching power supplies. https://elexnova.com/news/common-mode-chokes-communication-systems.html https://elexnova.com/news/common-mode-chokes-communication-systems.html Applications Thu, 11 Jun 2026 00:00:00 GMT Communication and data lines pick up common mode noise from cables, grounds and nearby power stages. Chokes, impedance balance and layout practice keep the signal path clean. https://elexnova.com/news/high-frequency-transformers-improve-efficiency.html https://elexnova.com/news/high-frequency-transformers-improve-efficiency.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Higher switching frequency shrinks magnetics but shifts loss into core and winding. Learn how transformer material, structure and winding choices trade size against efficiency. https://elexnova.com/news/reduce-emi-switching-power-supplies.html https://elexnova.com/news/reduce-emi-switching-power-supplies.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Source, path and victim: a structured way to reduce EMI in switching power supplies through layout discipline, snubbers, magnetic component choice, shielding and cable control. https://elexnova.com/news/how-to-select-power-inductor.html https://elexnova.com/news/how-to-select-power-inductor.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT A step-by-step selection method for DC-DC power inductors: inductance from ripple current, saturation and thermal margin, DCR loss, shielding and the data a supplier needs for a fast quotation. https://elexnova.com/news/how-to-select-inductor-manufacturer.html https://elexnova.com/news/how-to-select-inductor-manufacturer.html Industry Trends Thu, 11 Jun 2026 00:00:00 GMT Supplier selection criteria for magnetic components: engineering response, sample capability, quality system, production capacity, compliance documents and long-term cost stability. https://elexnova.com/news/inductor-applications-renewable-energy.html https://elexnova.com/news/inductor-applications-renewable-energy.html Applications Thu, 11 Jun 2026 00:00:00 GMT Inductors in solar, wind, storage and charging equipment: current profiles, environmental demands and the specification details that decide whether magnetics survive 20 years in the field. https://elexnova.com/news/inductor-testing-quality-control.html https://elexnova.com/news/inductor-testing-quality-control.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Inductance, DCR, saturation, hi-pot, temperature rise and visual inspection: the test plan that keeps inductor batches consistent from sample to mass production. https://elexnova.com/news/industrial-applications-high-frequency-transformers.html https://elexnova.com/news/industrial-applications-high-frequency-transformers.html Applications Thu, 11 Jun 2026 00:00:00 GMT Where high frequency transformers do the work in industry: switch-mode supplies, welding, medical, telecom and motor drive auxiliaries, with selection notes for each application. https://elexnova.com/news/magnetic-components-ev-charging-systems.html https://elexnova.com/news/magnetic-components-ev-charging-systems.html Applications Thu, 11 Jun 2026 00:00:00 GMT AC and DC EV charger designs depend on PFC inductors, resonant transformers, common mode chokes and output filter magnetics. Review the selection priorities for each position. https://elexnova.com/news/power-inductors-solar-inverters.html https://elexnova.com/news/power-inductors-solar-inverters.html Applications Thu, 11 Jun 2026 00:00:00 GMT Solar inverter magnetics must handle high DC current, wide temperature swing and long service life. See how boost, MPPT and output filter inductors are specified. https://elexnova.com/news/rohs-reach-compliance-magnetic-components.html https://elexnova.com/news/rohs-reach-compliance-magnetic-components.html Industry Trends Thu, 11 Jun 2026 00:00:00 GMT What RoHS, REACH and material declaration requests mean for inductors and transformers, and which documents buyers should collect before approving a magnetic component supplier. https://elexnova.com/news/toroidal-inductors-vs-drum-core-inductors.html https://elexnova.com/news/toroidal-inductors-vs-drum-core-inductors.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT A structure-level comparison of toroidal and drum core inductors covering stray magnetic field, winding cost, mounting style, thermal behavior and typical application fit. https://elexnova.com/news/understanding-saturation-current-power-inductors.html https://elexnova.com/news/understanding-saturation-current-power-inductors.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT What saturation current, rated current and temperature rise really mean on a datasheet, and how much inductance roll-off a high current converter can tolerate before performance drops. https://elexnova.com/news/power-inductor-vs-common-mode-choke.html https://elexnova.com/news/power-inductor-vs-common-mode-choke.html Technical Articles Thu, 11 Jun 2026 00:00:00 GMT Both are wound magnetic components, but current path, core behavior, saturation limits and selection criteria are different. Here is how to avoid mixing them up in a bill of materials.