11 Myths About Power Supplies (.PDF Download)

Aug. 8, 2016

1. Power-supply design is easy.

It seems many digital engineers take power for granted, but power supplies are being scrutinized as supply voltages keep decreasing. Supply tolerances are tightening as engineers work to decrease power, increase yield, and minimize supply-induced noise. Power-supply designs must address ripple, noise, spikes, compression, load response—both dynamic and static—as well as supply-induced signal noise and jitter...

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Stricter guidelines imposed by version 3 of the IEC standard for harmonic current emissions push designers to embrace power-factor-correction methodologies.
The flyback topology is a versatile, widely used, switched-mode power-supply design with some interesting characteristics that brings performance and BOM advantages to many applications...
Designing power supplies that work from wall outlets has multiple challenges. This FAQ should answer many of your questions.
High output current, also referred to as Iout, might be an important spec for your low-dropout (LDO) linear regulator.