Emerson Network Power has launched a high efficiency 100-150W ac-dc supply that features both ITE and non-patient contact and non-patient critical medical safety approvals. The new LPS103-M power supply is a compact open-frame design; measuring just 2 x 4", with a height of only 1.29", it has a typical full load efficiency of 88% and a power density in excess of 14Win³. The supply is primarily intended for use in information technology equipment (ITE) and light industrial systems, as well as for equipment intended for non-patient contact and nonpatient critical use in low power medical, dental and laboratory applications.
The LPS103-M features a universal 85-264Vac input – enabling it to be used anywhere in the world – and is also capable of operating from a 120-300Vdc input. The power supply produces a tightly regulated main 12Vdc output, together with an isolated 12Vdc fan output; the latter is rated at 1A, while the main output can deliver up to 8.3A continuously with convection cooling, or up to 12.5A continuously with 30 CFM forced air cooling. The main output can be adjusted over the range 10.8 to 13.2Vdc, and remote sense facilities are provided to compensate for a drop of up to 0.5V between the output terminals and the load.
Active power factor correction is employed to minimize input harmonic current distortion and ensure compliance with the international EN61000-3-2 standard – the LPS103-M has a power factor of 0.99 typical. The power supply has a maximum safety-ground leakage current of 275µA, and the main output has a hold-up time of 16ms minimum when the supply is fed with a 120Vac input and is delivering 150W of output power.
LPS103-M power supplies are comprehensively protected against overvoltage, overtemperature and short-circuit conditions, and feature a ‘power fail’ signal for remote monitoring purposes which will change state at least 6 ms before the main output loses regulation. The power supplies have a full load ambient operating temperature range of 0 to +50°C without de-rating and can cold-start from temperatures as low as -20°C. Between 50 and 70°C, the output should be derated by 2.5% per degree.
Emerson Network Power’s LPS103-M ac-dc power supplies comply with the rigorous EN55022-B and FCC part 15 Level B EMC standards for conducted noise and meet all applicable immunity standards, including EN61000-4-2, -3, -4, -5, -6, -8 and -11 levels 3. The power supplies carry a wide set of safety approvals, including UL/TUV/CSA 60950-1 and nonpatient contact and non-patient critical 60601-1.
LPS103-M ac-dc power supplies are available for immediate delivery. Standard lead-time is stock to 8 weeks. Pricing starts at US$85 in OEM quantities.