Convection cooled mini power supply at W150

The SDS150 is a compact, high-density, convection-cooled power supply that is suited to IT and industrial applications where space is at a premium and there are no internal fans.

XP Power's SDS150 is a compact, high-density, convection-cooled power supply that is suited to IT and industrial applications where space is at a premium and there are no internal fans.

Both open frame and U channel models can be used in 1U customer applications.

The open-frame model, 76 x 127 x 36mm (3 x 5 x 1.44in), offers the highest power density of 6.9W/in3, and the U channel, 81 x 127 x 39mm (3.2 x 5 x 1.54in), density is 6.1W/in3.

It is believed to be the only 150W convection-cooled supply of its size.

Similar devices either require forced air cooling, or are larger in size.

The unit, with up to 90%efficiency, has a universal input of 90-264VAC, and there are eight single output voltage versions ranging from 9 to 48V DC.

No minimum load is required for the unit to start up and maintain stated specifications.

The SDS150 operates at full power from 0 to +50C and up to +70C with derating.

The unit benefits from overvoltage, overcurrent and short-circuit protection in order to safeguard connected equipment.

An optional power fail detect signal can alert attached hardware of any impending power failure.

Unit efficiency is improved by the use of synchronous rectification.

This technique uses power MOSFETs in place of traditional diodes as active switches.

Such controlled switches act as rectifiers and results in significantly lower losses in the output stage and increased efficiency.

The power supply is approved to UL60950-1 and EN60950-1 safety standards and meets EN55022 level B conducted emissions standards.

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