Patented current Doppler and integrated magnetics design of high performance CompactPCI PSU Released 6 September 2002 APW Electronic Solutions has introduced a new 550W pluggable power converter for telecom-based CompactPCI applications. The unit derives the 3.3, 5, +12 and -12V CompactPCI voltages from the industry standard 48VDC; efficiency is >80% and the module is only 6U x 8HP in size, giving a very high current density. Optimised to meet the requirements of the telecoms industry, the unit provides N+1 redundancy, overload, over-voltage and short circuit protection, full current sharing between all positive voltage rails and industry standard DIN M connectors. The patented Hy-bridge or current Doppler design of rectifier uses standard components to provide high efficiency at low voltage and high currents with low ripple currents, minimising the need for additional filtering circuitry. The unit also uses a new integrated magnetics design of transformer, an innovative planar technology giving high efficiency in a low profile design. The combination of Hy-bridge rectifier, integrated magnetics transformer and synchronous rectification breaks new ground in PSU design, producing a unit with outstanding performance at today’s low voltage/high currents operating conditions. The module’s removable cover is extensively pierced to assist airflow through the device and the extruded aluminium body is milled to induce micro-turbulence in the airflow, again to improve cooling. The PSU is an integral part of the APW CompactPCI toolbox, an additional element in the integrated family of backplanes, extender cards, power supplies, mechanics and development systems supporting the CompactPCI architecture. *** Ends: body copy 232 words *** Notes to Editors. For further information: APW contact: Tim Froome APW Electronic Solutions Flanders Road Hedge End Southampton Hants SO30 2LG tel: + 44 (0)1489 774500 fax:+ 44 (0)1489 780978 tim.froome@apw.com www.apw.com Agency contact: Nigel May Parkfield Parkfield House Damerham Hants SP6 3HQ tel: + 44 (0)1725 518321 fax: + 44 (0)1725 518378 nigel.may@parkfield.co.uk www.parkfield.co.uk APW is a technically enabled manufacturing services ("TEMS") company that designs and manufactures large, complex infrastructure products for OEMs in the communications, computing and Internet markets.  APW  has particular skills in the areas of manufacturing enclosures, thermal management, power supplies and backplanes; as well as core competencies in product and system design, integration and supply chain management. APW operates in more than 30 locations throughout the Americas, Europe and Asia.