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These (isolated) DC/DC converters feature a patented secondary-side control power topology to enable wide adjustment of output voltage at high efficiency (92 percent at full load) and a droop-load sharing scheme for paralleling of modules. Its insulated metal substrate-based design provides high thermal performance; the iQN 35V/6A product delivers full power at +70&degC for 200 LFM cooling (added heatsink), or 4.7 amps at +60&degC for 300 LFM cooling (no heatsink); the 28V/7A product delivers 6.6 amps at +60&degC for 300 LFM cooling. Calculated MTBF is 2.3 million hours at +40&degC.

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These (isolated) DC/DC converters feature a patented secondary-side control power topology to enable wide adjustment of output voltage at high efficiency (92 percent at full load) and a droop-load sharing scheme for paralleling of modules. Its insulated metal substrate-based design provides high thermal performance; the iQN 35V/6A product delivers full power at +70&degC for 200 LFM cooling (added heatsink), or 4.7 amps at +60&degC for 300 LFM cooling (no heatsink); the 28V/7A product delivers 6.6 amps at +60&degC for 300 LFM cooling. Calculated MTBF is 2.3 million hours at +40&degC.

But wait; there's more. The system will also let you create adaptive filters. You can set up and run true (dual input) adaptive filter for broadband or narrowband noise cancellation. You get true dual-channel 24-bit resolution operation, with independent filters for each channel. The system supports channel mixing and inversion as well. You can even crank in channel delays ranging from 21 us to as long as 1.8 seconds.

You could even use Signal Wizard II to set up a realtime 2-channel oscilloscope and/or spectrum analyzer, and let it handle data capture, to boot. Very nifty. You can use the system to plot impulse and frequency responses as magnitude, dB, square, root, real, imaginary, or phase, using linear or logarithmic frequency axes.

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San Marcos, Calif. — Sullins Electronics has announced that its complete lines of edge card connectors, headers, 2-mm Hard Metric (HM) connectors, CompactPCI connectors, and Micro Plastics products may be ordered in RoHS-compliant packages.

The European Union's Restriction on Hazardous Substances (RoHS) directive bans the use of certain hazardous substances including lead, cadmium, mercury, hexavalent chromium,polybrominated biphenyl (PBB), and polybrominated diphenyl ether (PBDE), alongwith secondary elements defined in the directive. The directive takes effect on July 1, 2006.

To simplify the migration to RoHS-compliant manufacturing, Sullins' packages are backward compatible with conventional leaded manufacturing techniques. This enables users to surface mount lead-free packages onto lead-based PC-boards, and to use lead-free packaging with solders containing lead. Materials used for all new products are specifically engineered to accommodate the higher temperatures used in lead-free soldering, and can withstand reflow soldering (up to 260&degC) processes.

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Part numbers will change, and all RoHS-compliant parts from Sullins will be clearly marked with the term Lead-free” in accordance with JEDEC specifications. The company will continue to offer its remaining leaded inventory.

Call (888) 774-3100www.sullinselectronics.com

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WASHINGTON — Focal plane array technology developed by a U.K. company is among 18 projects selected by the military in 2005 under the Defense Department's Foreign Competitive Testing program.

DoD said this week that the U.S. Army will evaluate third-generation focal plane arrays developed by Qinetiq (Farnborough, U.K.). The Army said it wants to evaluate Qinetiq's low-cost arrays for supporting its Future Combat System program.

Cable connections can also be made more easily. Discharge resistors are needed to discharge PFC capacitors to protect personnel against electric shocks. They are also needed to switch capacitor stages in automatic PFC systems in order to prevent out-of-phase connections in parallel.

The modules discharge capacitors to 75 V or less within 60 seconds. Before reconnection, they must be discharged to 10% of their rated voltage or less.

EPCOS , 86617 Munich, Germany

www.epcos.com

LONDRES — La société Hewlett-Packard (Palo Alto, Californie) a annoncé le 1er février 2005 que ses chercheurs avaient démontré que la technologie qu’ils avaient inventée pourrait remplacer le transistor, composant fondamental à la base de l’électronique et de tout calcul contemporains. La société a annoncé que son « crossbar latch », ou verrou de barre transversale, à la nanoéchelle pourrait remplacer le transistor, tout comme le transistor avait remplacé le tube à vide au milieu du siècle dernier.

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