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Old 13th October 2008, 10:50 PM   #1
muky006 is offline muky006  Estonia
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Join Date: Nov 2007
Default USB controller

Could anybody give me ideas or schematics about power controlling with USB.
I need to switch ON/OFF for example 8 different high voltage applications. Its should be controlled by computer.
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Old 15th October 2008, 04:53 AM   #2
dangus is offline dangus  Canada
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Join Date: May 2004
Location: Vancouver Island
There's the Labjack U12, which is a USB box with analog and digital I/O.
http://www.labjack.com/results.php?category=0

I/OWarrior is a more basic USB I/O device:
http://www.sparkfun.com/commerce/pro...roducts_id=762

The UBW or USB Bit Whacker is something like the I/O Warrior, but hex code and board layouts are available if you want to build your own from scratch, or you can buy a board ready to go: http://www.sparkfun.com/commerce/pro...roducts_id=762

To control high voltage stuff, the safest way would be to use a "solid state relay", or a real relay.
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