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Technical Articles
Browse selection guides, application notes and practical power supply articles. This layout follows the previous WordPress blog structure while preparing space for the larger article library.
A practical workflow for diagnosing conducted and radiated EMI in switching power supplies by identifying the failing frequency, separating differential-mode and common-mode current, tracing return paths, and verifying each fix.
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A flyback transformer is better understood as a coupled inductor. During MOSFET on-time, the primary stores energy in the magnetic field; during off-time, that energy moves to the secondary. That distinction matters. A design can have the right turns ratio and still fail because its magnetizing inductance, air gap, insulation system, or winding arrangement is wrong.
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When an SMPS fails EMC testing, the next change should come from measured evidence—not a default assumption about PCB layout or filters. Learn how to separate noise modes, identify bypass paths and choose the right corrective action.
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Excessive output ripple is rarely solved by adding the biggest capacitor that fits. This bench-ready guide shows how to identify the waveform mechanism, correct the measurement, and apply the right circuit or layout fix.
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A 24 V power supply can look suitable on a quotation and still struggle inside a warm control cabinet. Its continuous output rating may fall with temperature, a valve bank may pull the voltage down during switching, or an auxiliary rail may drift when the main load goes idle. Understanding the converter topology helps engineers ask better questions before those problems reach the machine.
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A switching converter can look perfectly reasonable on a schematic and still ring, overheat, fail EMC testing, or lose regulation on the first PCB. The difference is rarely mysterious. Fast current edges flow through real copper, vias, component leads, and capacitor connections. Those structures have resistance, inductance, and capacitance that the schematic does not show.
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