With the popularity of fuel cell technology rising, so too is the decision to use a brushless dc motor for fuel cell applications. Not only does a brushless motor remove the need for dc to ac inverters, the absence of brushes completely eliminates the risk of arcing or sparking. Compared to brush dc motors, these have a longer lifespan, and some would even consider them to be nearly maintenance-free. The motors also feature integrated electronic capability, wide dynamic speed range that reduces power consumption, and high efficiency.
Researchers at the University of Maryland have achieved a first in lithium-ion battery science: the development of a successful lithium-based battery using one material for all three core components of a battery -- anode, cathode, and electrolyte.
The online Bar Steel Fatigue Database for automotive design engineers has been updated for the fifth time and now contains 134 iterations, or grade/process combinations. It provides better predictability for designing parts with long-term reliability and durability.
FPGAs use programmable fabric to create custom logic, but this flexibility comes at a cost -- usually around 10 times more silicon real estate and 10 times the power dissipation. Can we really claim any FPGA is low power?
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