The new network LED Dimmer from Opto 22 uses pulse width modulation technology (PWM) to control brightness from 0-100 percent for 9-30 to control VDC constant voltage LED lighting assemblies such as lamps, bulbs, strips, ropes and bars. It can also be used for other resistive-type loads. (Source: Opto 22)
Al, this is an interesting approach, and as you point out it is flexible and extensible. One thing it does bring to light (pun intended) is that controlling LEDs is much more complex than the systems they replace. On the other hand, with the electronics we have available now, it is not a problem to develop and integrate systems such as this.
In a lot of vehicles today, the interior lights dim as you prepare to drive, or when leave the vehicle and close the door. I do wonder if LEDs have been able to do that up tp now. This technology would be important for those applications, I would think.
Cabe, Very surprising that serial communications wouldn't be a topic that everyone would be exposed to. But I guess it is simple enough that young engineers can get up-to-speed on their own if they need to
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
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