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![](https://www.xppower.com/storage/resources/images/Understanding Energy Efficiency_1.jpg)
Energy efficiency for external power supplies (EPS)
Controlling the power consumed by external power supplies is important for continuity of the energy supply and reduction...
![](https://www.xppower.com/storage/resources/images/xpa071.jpg)
Overcoming patient leakage current issues
Patient leakage current and ways of reducing and controlling it for the most stringent medical applications
![](https://www.xppower.com/storage/resources/images/LCE80pr.jpg)
Engineers guide to selecting power supplies for LED lighting applications
Traditionally, lighting comprised some form of incandescent, fluorescent or halogen lamps. That has changed with the eve...
![](https://www.xppower.com/storage/resources/images/Understanding_Efficiency.jpg)
Understanding efficiency: Looking for the worst-case scenario
It’s standard practice to put the best-case scenario on data sheets, but how does that differ from the efficiency that c...
![](https://www.xppower.com/storage/resources/images/Power_supply_de-rating_practic.jpg)
Power supply de-rating in practice
In recent years it has become commonplace for some manufacturers to increase the power rating of the product and specify...
![](https://www.xppower.com/storage/resources/images/RDE20-RDF25_PR.jpg)
Reliability in electronics
What lies behind the figures and what significance should be attached to them.
![](https://www.xppower.com/storage/resources/images/custom.jpg)
The case for custom power supplies in low to medium volume applications
The specification you need, not the one that happens to be available.
![](https://www.xppower.com/storage/resources/images/PowerFactor.jpg)
Power factor - concisely explained
Difference between VA & Watts, definition of VAR & graphical representation of real power, reactive power, apparent powe...
![](https://www.xppower.com/storage/resources/images/Operation.jpg)
Parallel & series operation technical overview
A helpful technical article that expertly discusses parallel and series operation.
![](https://www.xppower.com/storage/resources/images/Lightning.jpg)
Guide to lightning transients
Expert technical overview of transients.
![](https://www.xppower.com/storage/resources/images/FHSM.jpg)
Input considerations - voltage, current, power & fuses
A guide to input voltage, input current, power factor and selecting fuses.
![](https://www.xppower.com/storage/resources/images/SVR-VRpr.jpg)
Common power supply topologies
Summary of the three most common switched-mode power technologies.