01 November 2012

Power supplies offer 94% efficiency

Murata has announced the MVAC series of open frame ac/dc power supplies.

Suitable for use in a variety of industrial factory automation, communications and medical equipment, the series comprises two single output models, the 250W MVAC250 and the 400W MVAC400 units.

Both models are optimised to offer a typical efficiency of 94%. They accommodate the universal ac input voltage range from 90 to 264 VAC with active power factor correction and active inrush control. Each model is available with a nominal output voltage of 12, 24 or 50VDC.

The devices come packaged in an industry standard 1U open frame format measuring 127 x 76.2 x 35.56mm. They are said to demonstrate significantly better convection cooled performance characteristics than other competing designs.

Both modules comply with the UL60601-1 3rd edition medical safety standard, as well as the IEC60950/UL60950 safety specifications and EN55022 standard for conducted emissions.

Protection features include over voltage, over current, and over temperature. A remote sense input and power OK signal are provided across the range. Optional droop current sharing allows multiple supplies to be operated in parallel.

Author
Laura Hopperton

Supporting Information

Websites
http://www.murata.eu

Companies
Murata Power Solutions

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