21 Aug 2018

550 Watt medical power supply boasts up to 92% efficiency

Gresham Power Electronics, the Salisbury based Defence and Commercial power conversion specialist, has announced the introduction of its latest 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 a highly advanced circuit topology to deliver 550 Watts with fan cooling and 150 Watts convection cooled in an industry standard package that has a 3 x 5 inch footprint while being just 1.50 in. high (76.2 x 127 x 38.25mm).

Gresham’s OF(M)550 power supplies feature power density of 24W/in³, high efficiency up to 92% typical and features 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 power a cooling fan and an optional cover kit may be supplied to order.

Key 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.

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GaN’s Ground-Floor Opportunity Rudy Ramos | Mouser Electronics
GaN’s Ground-Floor Opportunity
The electronics industry has a major role to play in helping to save energy, by enabling better equipment and new ways of working and living that that are more efficient and environmentally friendly. Maintaining the pace of technological progress is key, but improvements become both smaller and harder to achieve as each technology matures. We can see this trend in the development of power semiconductors, as device designers seek more complex and expensive ways to reduce switching energy and RDS(ON) against silicon’s natural limitations.









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