LPS200-M series power supplies

Emerson Network Power has launched a series of 250 W AC-DC power supplies that feature both ITE and non-patient contact and non-patient critical medical safety approvals.

The LPS200-M series is a compact open-frame design, measuring 7.6 x 12.7 cm with a height of 3.9 cm. The supplies have a typical full load efficiency of 88% and a power density of more than 0.66 W per cubic centimetre.

The supplies are primarily intended for use in information technology equipment and light industrial systems, as well as for equipment intended for non-patient contact and non-patient critical use in low-power medical, dental and laboratory applications.

The series features a universal 90-264 VAC input — enabling use anywhere in the world. It can also operate from a 120-300 VDC input.

The series comprises two supplies: the LPS203-M, which has a 12 VDC main output, and the LPS205-M, which has a 24 VDC main output. The 12 V model can deliver up to 10.3 A continuously with convection cooling, or up to 20.8 A continuously with 30 CFM forced air cooling, while the 24 V model is rated at 5.2 A continuous with convection cooling and 10.4 A continuous with 30 CFM forced air cooling.

The main output of each model can be adjusted up to 10% either side of nominal and is tightly regulated to within ±2% for all line and load conditions. Remote sense facilities are provided to compensate for a drop of up to 0.5 V between the output terminals and the load.

In addition to their main output, both supplies also produce an isolated 12 VDC fan output; capable of delivering up to 1 A, regulated to within ±5%.

Active power factor correction is employed to minimise input harmonic current distortion and ensure compliance with the international EN61000-3-2 standard. Both supplies have a maximum safety-ground leakage current of 275 µA, a main output hold-up time of 16 ms minimum when fed with a 120 VAC input and deliver 250 W of power.