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Energy efficiency for external power supplies (EPS)

Energy efficiency legislation is now in place across most regions of the world. In the main, the focus of these regulati...

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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...

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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...

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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...

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Miniature PCB Mount 5 W AC-DC power supply meets international medical safety standards

The EME05 series of ultra-compact, single output, 5 Watt AC-DC power supplies are believed to be one of the smallest 5 W...

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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...

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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...

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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...

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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,...

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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...

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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...

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