XP Resources
Getting More for Less

Examining the power efficiency of medical electronic equipment in a typical ...
The case for custom power supplies in low to medium volume applications

The specification you need, not the one that happens to be available.
Power factor - concisely explained

Difference between VA & Watts, definition of VAR & graphical representation ...
Parallel & series operation technical overview

A helpful technical article that expertly discusses parallel and series ope ...
Guide to lightning transients

Expert technical overview of transients.
Input considerations - voltage, current, power & fuses

A guide to input voltage, input current, power factor and selecting fuses.
Common power supply topologies

Summary of the three most common switched-mode power technologies.
An innovative topology for 24 hour turnaround of custom configured PSUs

A different approach to solving individual system power requirements.
Eliminating snubber circuits in AC-DC power supplies

Implementing silicon carbide diode in PFC boost controllers.
MTBF: misquoted and misunderstood

Important factors when comparing quoted MTBF.
The ever shrinking power supply

Factors driving down the size of AC-DC power supplies.
How to design a smaller, more efficient AC-DC power supply

Creating smaller power supplies without compromising efficiency or function ...