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  Topic: IR LED project using current source

Replies: 1
Views: 9701

PostForum: LED Projects   Posted: Mon Jul 13, 2009 11:46 pm   Subject: IR LED project using current source
You can get a "wall wart", those power supplies that hang on the wall, in a thrift store. You then need to design your array based on what voltage you want to use. Here's my favorite site ...
  Topic: Transformerless 5 Volt Power Supply

Replies: 9
Views: 25942

PostForum: Electronic Resources   Posted: Mon Jul 13, 2009 10:31 pm   Subject: Transformerless 5 Volt Power Supply
You can find plenty of 5v supplies for 3 bucks or so commercially. They are used for recharging MP3 players, phones, and other devices that have USB connections.
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