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AC/DC converter targets standby power supplies

Posted: 10 May 2011 ?? ?Print Version ?Bookmark and Share

Keywords:power? voltage? input? output? standby power supply?

RECOM Electronic GmbH has announced the release of a range of isolated AC/DC power supply modules with low standby input currents, suited for low power applications or standby power supplies.

The RAC01 and RAC02 have 1W or 2W of output power from a universal input voltage of 90-265VAC and yet draw only 30mW in standby. The RAC03, on the other hand, provides an output power of 3W yet draws only 80mW when unloaded.

For many applications, this low standby power will reduce energy consumption and reduce costs compared with standard power supplies. Typical applications include low power supplies for clocks, remote control receivers, microcontroller circuits, wireless control systems or as relay drivers to switch higher power AC/DC supplies that could not meet green power/energy star regulations.

Unlike other low power AC/DC modules, the RAC01, RAC02 and RAC03 claim to offer high efficiency, well regulated, short-circuit protected DC outputs with 3.3, 5, 9, 12, 15 or 24V voltage options and a line and load regulation of typically 2%. The conversion efficiency is up to 78%, which enables RECOM to guarantee an operating temperature range of -25C to +85C for the one watt part, reducing to +80C for the two and three watt converters.

Although the converters are compact with a low profile case that is 17mm high or less, they contain an input filter and meet EN55022 Class B EMC without the need for any external components. The converters provide 3kVAC isolation and are said to be CE and UL safety certified.

According to RECOM, these low-power AC/DC modules are tested, ready-to-use solutions that will save design engineers development time, component handling and board space without compromising on safety, lifetime or energy efficiency.

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