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Green mode LLC half bridge converters
Power supplies marketed under the “Green” label are designed to maximise efficiency across the load range (average activ...
![](https://www.xppower.com/storage/resources/images/blog/system_emi.jpg)
Determine System EMI Characteristics Early in System Design Phase
Often in the commercial, industrial, medical and military industries, system engineers wait until system qualification b...
![](https://www.xppower.com/storage/resources/images/blog/MIL-STD-1275.jpg)
MIL-STD-1275 Compliance for power systems made easy.
The US Department of Defense Standard MIL-STD 1275 is an immunity standard that defines a series of test conditions to b...
![](https://www.xppower.com/storage/resources/images/blog/batteries.jpg)
Supplying an AC-DC Power Supply from a DC source
A frequently asked question concerns the suitability of using an AC/DC power supply with a DC source. There are two part...
![](https://www.xppower.com/storage/resources/images/blog/Def-stan-59-411.jpg)
DEF-STD 59-411 and the challenge of Land Class A
DEF STD 59-411 was issued by the UK Ministry of Defence in 2007 for land, sea and air equipment. It replaced DEF STD 59...
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New Version of EN61000-3-2, The Harmonic Current Standard
EN61000-3-2:2006+A2:2009 is the present standard for limits for harmonic current emissions for equipment with an input c...
![](https://www.xppower.com/storage/resources/images/blog/EPL225.jpg)
Industry leading 95% efficient 225 Watt AC-DC supply in a 2" x 4" package
The EPL225 series of high efficiency, open frame, AC-DC power supplies are approved for industrial, IT and medical appli...
![](https://www.xppower.com/storage/resources/images/blog/safety-IEC62368.jpg)
The New Safety Standard for ITE and AV Equipment: IEC62368-1
The boundaries between information technology and audio/ video technology have become increasingly blurred. For example,...
![](https://www.xppower.com/storage/resources/images/blog/UsingYcapacitors.jpg)
Using Y rated capacitors in medical applications
The medical standard IEC60601-1 is mandatory for medical equipment and requires manufacturers to review the isolation sy...
![](https://www.xppower.com/storage/resources/images/blog/Def-stan-61-5.jpg)
DEF-STAN 61-5 Part 6, Issue 6, Compliance Made Easy
In February 2009, the UK Ministry of Defence published issue 6 of Defence Standard 61-5 part 6 to cover 12 and 24V syste...
![](https://www.xppower.com/storage/resources/images/blog/EMC.jpg)
EN55032 Replaces EN55022
EN55032 is the new standard for EMC emissions replacing EN55022, the standard for ITE equipment, and two other EMC stand...
![](https://www.xppower.com/storage/resources/images/blog/CCH.jpg)
Removing heat from sealed enclosures
Demand for power supplies that can withstand harsh environmental conditions does not only come from defense applications...