New power supply for telecoms and industrial activities

Jon Lawson

Gresham Power Electronics has launched a micro-footprint, Ultra High Density (UHD) 550W output power supply, the OF(M)550. The product range has been designed for use in applications including industrial and telecom systems, medical equipment and LED lighting.

This new series of open frame switching power supplies utilises an advanced circuit topology to deliver the power with fan cooling and 150 Watts convection cooling in an industry standard package that has a 3 x 5 inch footprint while being just 1.50 inches high (76.2 x 127 x 38.25mm).
It features power density of 24W/in³, efficiency up to 92% typical and a universal AC input with active PFC. Output voltages of 12, 15, 24, 30, 48 and 58VDC are available. All models feature an auxiliary output to a cooling fan and an optional cover kit may be supplied to order.
International safety agency and EMC approvals are met as follows: EN60601-1 3rd Edition Class I or Class II, CSA/UL 60601-1 Medical Safety, IEC/EN60601-1 3rd Edition, CAN/CSA C22.2 No. 60601-1 3rd Edition, Nemko, UL, cUL and CE Marks, EN50022 (CISPR 22) FCC Part 15 Conducted-Level B, EN61000-3-2 Class D Harmonics, EN61000-4-2, 3, 4, 5 Level 3 Immunity.