XP Power Launches New ac-dc Power Supplies for Medical Devices
XP Power has announced two new ranges of ac-dc power supplies that provide BF class insulation for healthcare applications where excellent EMC performance is a key requirement. The PBR500 and PBR650 series offer power levels up to 500 W and 650 W, respectively. Both series accept a very wide, universal input range of 80 to 264 V ac at 47 to 63 Hz and offer a total of eight single output voltages (12, 15, 18, 24, 28, 36, 48, and 57 V), giving system designers the flexibility to cover many applications with the same series.
Both series offer efficiencies of 90%, reducing the heat generated during operation and prolonging the lifetime. The PBR500 is available in two formats: The U channel format provides 350 to 400 W when convection cooled and 450 to 500 W with external forced air cooling. The covered version, including a variable speed integral cooling fan for low audible noise, provides a complete 450 to 500 W solution.
The PBR650 provides 600 to 650 W in an enclosed supply which also includes a variable speed integral fan with low audible noise.
The products have very low earth and patient leakage currents, providing 2 x MOPP from input to output and 1 x MOPP from both input to ground and output to ground. Input to output isolation is rated at 4,000 V ac with input to ground and output to ground isolation rated at 1,500 V ac. Both conducted and radiated emissions are class B and both series are compliant with IEC/ES/EN 60601-1 edition 3.1 and 60601-1-2 edition 4
Both series include a 5 V standby supply, overvoltage and overcurrent protection, remote sense, and thermal shutdown. Also included is an “ac OK” signal and remote on/off control. The u channel version of the PBR500 also provides a 12 V, 0.3 A output suitable for powering system cooling fans.
The PBR500/PBR650 are priced from $179.63 for 500 pcs orders.
