22 Feb '13, 1pm

Build your own dumb USB power strip

Build your own dumb USB power strip

The jack on the side accepts the barrel connector from a 12V wall wart. [Kenneth] mentions that the 2.1mm jack is a standard he uses in all of his projects. Inside there’s a switch mode power supply that provides the regulated 5V to each USB port. We really like the fact that he added some protection; diy is no fun if you end up frying your beloved multi-hundred dollar devices. The yellow components are polyfuses which will cut the power if 600 mA of current is exceeded. This works great for almost all of his devices, but his iPod 4G doesn’t like the system. It sees the voltage dip just a bit and stops charging entirely.

Full article: http://hackaday.com/2013/02/22/build-your-own-dumb-usb-po...

Tweets

Bit banging through a USB parallel port adapter

Bit banging through a USB parallel port adapter

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Build Tight, Ventilate Right. #NewandNotable

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#Solar

#Solar

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