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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.
Slow voltage drift in a switching power supply usually points to aging capacitors or a feedback-loop problem, not an immediate PWM controller failure. This guide explains how to diagnose the fault safely and verify the repair under load.
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Topology selection should start with input range, output voltage, current, power level, isolation, thermal limits, cost, size, and EMC risk. This guide explains how to shortlist non-isolated and isolated SMPS topologies for real industrial applications.
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Radiated EMI failures in switching power supplies usually start at the source: PCB hot loops, high dv/dt copper, poor return paths, transformer parasitic coupling, and leakage-inductance ringing. This guide explains how to locate the source by frequency range, improve PCB and transformer design, and use shielding or ferrites only after the main radiator is under control.
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Understand key switching power supply specifications, including line regulation, load regulation, ripple, inrush current, protection, drift, response time, EMC and safety.
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Switching power supply debugging is more than checking output voltage. This guide explains ten common SMPS problems, from transformer saturation and high MOSFET VDS to light-load ripple, VCC cycling, heavy-load startup failure and short-circuit stress.
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Choosing an EMI filter for a switching power supply starts with identifying whether the dominant interference is common-mode, differential-mode, or mixed. This guide explains how to select chokes, X/Y capacitors, ratings, layout, and test methods for practical EMC performance.
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