Powerbox, one of Europe’s largest power supply companies, and for more than three decades a leading force in medical power supplies, introduces the new Medline series 150 and 300 AC/DC single output open frame (2×4 and 3×6) power supplies for medical type BF applications requiring high performance in low airflow conditions.
In Medical applications, patient comfort is important and reducing the level of noise and parasitic disturbances a must. When designing equipment for medical applications, those two principles have to be considered, often requiring designers to develop products to operate in free air convection, limiting forced ventilation to peak demand. As the front-end of any system the power supply has to deliver high performance in such environments and that’s what the two new Medline series products, OBM03 and OBP03, have been designed for.
Combining an optimized layout to facilitate natural air convection cooling with highly efficient switching topology, the OBM03 and OBP03 are designed for continuous output power operation of 100W and 200W, respectively, in a natural convection environment. When extra power is required, with limited forced air, the available output power increases, to 150W at only 7.5 CFM for the OBM03, and to 300W at 10CFM for the OBP03.
Designed for medical BF applications, the OBM03 and OBP03 withstand an input-to-output isolation of 4000VAC, input-to-ground of 1500VAC and outputto-ground of 1500VAC. At 264VAC the leakage current is below 275µA for the OBM03 and bellow 220 µA for the OBP03.
In medical environments, parasitic noise could impact microvolt-sensors and other sensitive equipment, requiring extreme attention to conducted and emitted radiations. The OBM03 and OBP03 have an efficient built-in filter and loop-less layout facilitating compliance to EMC IEC60601-1-2 and ITE requirements, as well as EN55011/EN55022 class B both conducted and radiated.
“With the growing number of medical applications for patient remotemonitoring, and concern for their comfort, it is important that our power solutions enable high-performance, nearly silent operation, in such environments,” Martin Fredmark, VP – Product Management said. “The Medline series 150 and 300 have been designed to be highly flexible, delivering highperformance in natural conditions, with extra power available on demand under limited airflow.”
With a nominal input voltage of 100-240V 50/60Hz, seven available output voltages spanning from 12 to 48VDC, a typical power factor of 0.98, and an operating temperature window of 0 to 70ºC the new power supplies fit nicely into a large number of medical applications worldwide.
Other notable features are over-voltage and over-current protection, no load power of <1W, 92% efficiency (89% for OBM03), 250,000h MTBF per MILHDBK-217F, and a separate isolated 12VDC output for fan power.
The Medline OBM03 and OBP03 are packaged in an open frame 2 x 4 x 1.29” (50.8 x 101.6 x 33 mm) for the OBM03, and in a low profile open frame 3 x 6 x 1.38” (76.2 x 152.4 x 35.1 mm) for the OBP03. In addition to the open frame configuration, the OBP03 is also available with an L-Bracket, and a full enclosure with an integrated fan. The OBP03 also includes an inhibit function.
Medline 150 OBM03 and Medline 300 OBP03 products meet, among others, safety standards UL ES and CSA 60601-1 and 60950-1, and environmental RoHS.