EDN's 19th Annual Innovation Awards Finalists
-- EDN, February 2, 2009
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&& PREVIOUS FINALIST | MAIN | NEXT FINALIST >> Category: Power Supplies Finalist: BMR453 series dc/dc converters (Ericsson)  It’s difficult to combine higher power/efficiency with high output accuracy: For example, traditional quarter brick DC/DC converters can achieve up to 300W with an output accuracy of ±2%, while intermediate bus converters (IBC) can achieve up to 377W with an output accuracy of +4/-9% accuracy. However, Ericsson power modules achieve just that with its new digitally-controlled DC/DC converter. In an industry first, Ericsson’s BMR453 series of DC/DC converters uses a digital control platform contained within the modules themselves. By integrating more into the control circuitry, the concept frees up real estate for improving the power density, simultaneously offered unprecedented levels of control.Customers in the ICT equipment markets demand more power and greater efficiency. With 96% efficiency, the BMR453 offers 396W output power with ±2% accuracy. At that level of accuracy, the best competitors’ module offers just 300W output power. So Ericsson’s BMR453 offers a huge 32% more power in the same package size. The BMR453 modules feature a PMBus interface for system connection, opening up a whole new world of control features. The net result is increased power density, greater accuracy, a much higher level of control and integration within a system, and reduced through life cost of ownership as a result of its high efficiency and intelligent use of energy management. |
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