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MARCH 2012 SWITCHES & OPTOELECTRONICS The measure of Electronics March 2012


CONNECTINGINDUSTRY.COM/ ELECTRONICS


incorporating Electronics Product Review


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ISSN 1472-1252


Total Average Net Circulation for January-December 2008 is 16,999


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Contents…


News Industry Spotlight 4. Simulation technology for CPUs 5. Connectors integrate higher-level of surge protection 6. The future is bright with Solar UK


Features


Optoelectronics 9. A measure of luminous efficiency 10. Make the right choice with online selection tool


Editor At Large: Industry Interview 12. A winning formula


Show Preview: National Electronics Week 16. NEW blooms


Show Review: Embedded World


18. Embedded technologies standardisation group formed Power Management


20. Making improvements step-by-step 22. Synchronous buck regulator for dual-cell Li-Ion apps


Members of the Audit Bureau of Circulations


ASICs & FPGAs 24. Active power technique


Switches & Relays 26. When only a DC style switch will do


COVER STORY


To guarantee a simple EMI compliant high-output power supply design, Linear Technology has developed the LTM46138A step-down µModule regulator demo board (DC1743) for use with the LTM4613 power module


Featuring on page 14 of this issue


Editor Michelle Winny


Publishing Director Hannah Dedman


Managing Editor Neil Mead


Area Sales Manager Tom Woollin


Area Sales Manager Robert Taylor


Classified Designer Steve Parks


Magazine Administration Sarah Cox


Production Controller Gemma Dunmill


Circulation Enquiries Tel: 0845 602 7390 Fax: 0845 604 2327 E: datateam@capsule-group.com


Tel: 07545927527 mwinny@datateam.co.uk Tel: 01622 699175 hdedman@datateam.co.uk Tel: 01622 699193 nmead@datateam.co.uk Tel: 01622 699116 twoollin@datateam.co.uk Tel: 01622 699165 rtaylor@datateam.co.uk Tel: 01622 699122 sparks@datateam.co.uk Tel: 01622 699154 scox@datateam.co.uk Tel: 01622 699150 gdunnmill@datateam.co.uk luminous efficiency


PRODUCTS AND APPLICATIONS FOR ELECTRONICS DESIGN POWER MANAGEMENT


improvements step-by-step


Making


What you should know before selecting a low EMI EN55022-compliant power supply


NATIONAL ELECTRONICS WEEK: Show preview special


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The paper used in this magazine is obtained from manufacturers who operate within internationally


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Optoelectronics products P10


Next month... Features in the April 2012 issue of Electronics will include:


• Test & Measurement • EMC & Thermal Management • Interconnection • Cabinets, Racks & Enclosures •Mobile technology • Show Preview: PCIM For more information visit the www.connectingindustry.com/electronics website


Electronics MARCH 2012 3


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