High efficiency 78W external ac/dc power adapter

31st January 2008

Emerson

ES Admin

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Emerson Network Power has expanded its portfolio of ac/dc power adapters with the launch of a high efficiency 78W model. The new AD80 power adapter features a universal 90-264 Vac input - enabling it to be used anywhere in the world - and produces a single, fully regulated 24 V output capable of delivering up to 3.25 A continuously.

AD80 freestanding ac/dc power adapters provide a very flexible, pre-approved power solution for a wide variety of portable and desktop applications, including instrumentation, test and measurement systems, telecommunications and computer peripherals.

The AD80 uses a high efficiency switch-mode design that complies with the One Watt Input Energy Star/Blue Angel requirement; it has a typical efficiency of 84%. The adapter is equipped with a 3-pin (type C14) IEC320 ac input receptacle, and features an internal, user accessible, ac input fuse. The dc output is provided via a cable fitted with a standard 2.5 mm I.D, 5.5 mm O.D. barrel plug.

AD80 power adapters have a full load ambient operating temperature range of 0šC to +40šC without de-rating. The adapters are comprehensively protected against overvoltage, overcurrent and overpower conditions, with automatic recovery, and have a high demonstrated MTBF of more than 300,000 hours at full load and 25šC ambient. They are equipped with an internal EMI filter and comply with the rigorous EN55022-B and FCC part 15 Level B EMC standards for conducted noise, as well as meeting all applicable immunity standards, including EN61000-4-2, -3, and -4 levels 4. The power adapters also carry a comprehensive set of safety approvals, including UL/CSA/NEMKO 60950-1.