distribution boards electrical

Designing protective circuitry for DSL loops: Beware of pitfalls

DSL equipment requires protection from a variety of overvoltage conditions, but the need to avoid unduly degrading circuit operation complicates circu … External Source

40- and 100-Gbps Ethernet brings new test challenges

IEEE P802.3ba will define an architecture for 40- and 100-Gbps Ethernet, giving rise to new test equipment and test techniques. External Source

Dangerous games

Budding engineers benefit from physically challenging games. External Source

Managing high-voltage lithium-ion batteries in HEVs

Skyrocketing energy prices and the growing concern over carbon emissions have focused attention on electric and hybrid-electric vehicles. New lithium-battery designs will be key technologies for efficient EVs and HEVs. External Source

Noisy radio link puts brakes on racing-crew communication

Tales From The Cube: Interference is hampering driver-to-pit-crew communication via a 460-MHz FM system. Even disconnecting the driver's mic doesn't h … External Source

Use alternative approaches to evaluate dc/dc synchronous buck converters

Linear systems, online tools, and full simulations help you analyze your designs. External Source

Selecting the correct process geometry and options

Most of the custom chips today, including ASICs, ASSPs (application-specific standard products), and special-purpose custom chips, have function blocks that do not require leading-edge processes. External Source

Eliminate Sallen-Key stopband leakage with a voltage follower

Novel design techniques help reduce stopband leakage in your filter designs. External Source

RFIDs power themselves

The IC Insider takes a look at the charge pump of Alien Technology's Alien Higgs RFID. External Source

Innovating out of the downturn

GUEST OPINION: If history is any indicator, innovation, not the business cycle, will pull the semiconductor industry out of recession. But this time young, innovative companies jumping on advanced processes may play a disproportionate role. External Source

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