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AC/DC power supply with speed fan minimizes noise

Posted: 12 Nov 2009 ?? ?Print Version ?Bookmark and Share

Keywords:AC/DC? power supply? industrial application?

XP Power HPU15K

From XP Power comes a low-profile HPU1K5 1500W AC/DC power supply series with three single-output models aimed at a broad range of industrial applications that require bulk power within a compact enclosure.

The models are available covering the nominal output voltages of +12, +24, or + 48Vdc, with each being user adjustable either manually, or via an external voltage signal. The universal input range covers 85-264Vac, with output power up to 1500W available at high line input and up to 1200W when input voltages are below 180Vac. Using an integral fan, the supply can be mounted either vertically or horizontally and will operate in a wide-temperature environment from -20C up to +50C at full power, and up to +70C with derating.

The mechanical design of the HPU1K5 includes a number of innovative design features. It uses variable speed fan to keep audible noise to a minimum and the use of only two internal PCBs. These features aid the optimal flow of air through the unit, helping to maintain a low internal operating temperature and ensuring long-term component reliability. The use of a dual stage power factor correction circuit and synchronous rectification techniques contribute to the units 90 percent+ power efficiency.

The HPU1K5 can be utilized in current share designs where up to eight of the same output voltage models can share current within 10 percent of each other at full load.

A 5V/1A standby rail is standard. Other control lines and signals provide AC OK, DC OK, Inhibit, Enable, Fan Fail and over-temperature indications. Remote sense compensates for up to a 0.5V drop in the connection cabling. All models have international safety agency approvals and meet the required conducted and radiated noise levels.

The HPU1K5 series comes with a three-year warranty and is available from Newark or direct from XP Power. It is priced at $507 each in 500-unit quantities.

For application notes on power supply click here.

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