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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.
Compare push-pull, half-bridge, full-bridge, PSFB, and LLC choices by switch stress, transformer use, RMS current, gate drive, protection, and real application conditions.
Read More Compare push-pull, half-bridge, full-bridge, PSFB, and LLC choices by switch stress, transformer use, RMS current, gate drive, protection, and real application conditions.
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A power supply that reads 0 V at its output can fail in several very different ways. One unit may be completely silent because its PWM controller never receives startup power. Another may produce a brief pulse and shut down because the auxiliary winding cannot sustain controller VCC. A third may be healthy but connected to a shorted load.
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Choosing between an isolated and a non-isolated power supply is a system decision shaped by voltage exposure, accessible outputs, grounding, EMC, efficiency, and fault behavior.
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Learn how power factor correction reshapes AC input current, reduces harmonic distortion, supports compliance, and creates a stable high-voltage bus for high-power designs.
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A switching power supply can appear to fail its ripple specification before anyone has changed the circuit. A long probe ground lead picks up the switch-node field, an unsuitable probe buries a millivolt signal in channel noise, or a full-bandwidth capture is compared with a datasheet value measured at 20 MHz. The resulting waveform looks alarming, yet much of it may belong to the measurement loop rather than the converter output.
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When an isolated switching power supply misses its efficiency target or fails EMC testing, the first suspects are usually the PCB layout, snubber, MOSFET, rectifier, or control loop. That is sensible, but incomplete. The transformer may meet its turns ratio and inductance specifications and still impose a hard limit on the finished power supply.
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