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Compact power supply suits medical apps

Posted: 03 Nov 2006 ?? ?Print Version ?Bookmark and Share

Keywords:XP Power? power supply? AMM120? medical?

XP Power's new 120W power supply suits medical and other portable apps

XP Power has announced a medically approved, compact 120W power supply for medical and other portable applications requiring high isolation and low leakage current specifications. The AMM120 is offered with both Class I (with ground) and Class II (no ground) AC inputs. Class II inputs are commonly required in medical equipment because the reliability of ground connections cannot be guaranteed in all locations in which portable devices may be used. This is driving a growing demand for Class II qualified power supplies. Qualification of the AMM120 means that users are not required to further test or qualify the power portion of their systems, saving time and expense.

The power supply measures 160-by-76.2-by-43.7mm, has a power density of 3.69W/inch3, and is said to be one of the most powerful external units currently available with medical approvals. It has a universal AC input and delivers a single output of 12-, 15-, 18-, 19-, 20-, 24-, 30-, 36- or 48Vdc at 85 percent typical efficiency under full load, minimizing waste heat to enhance reliability and avoiding the need for a fan to ensure silent, maintenance-free operation. The AMM120 operates at full power at up to 40C and at least 50 percent power at 60C.

It needs no minimum load and has better than 5 percent total regulation. Ripple and noise are limited to two percent maximum. Overvoltage, overtemperature, overload and short circuit protection are included. Auto-recovery is provided in the case of overload. The power supply meets all major international safety and EMC specifications for medical applications. MTBF is greater than 175,000hrs (MIL-HDBK-217F).

The AMM120 is available today and priced from $91 each for 1,000-plus quantities for the 24V version.




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