 OfflineNewbie
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« on: April 08, 2012, 03:37:48 am » |
Looking for some help with making a power adapter to convert power from 110V mains to 9v DC. Any suggestions on a circuit, or a site to use as a resource?
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WV
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Arduino, Helps With the ADD
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« Reply #1 on: April 08, 2012, 07:20:30 am » |
http://www.ti.com/lit/ml/slup224/slup224.pdfGoogle search wil reward many returns, But wouldnt it be easyer just to use a wall wart (wall adapter)?. Or are you just wanting to build one for fun  ?
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« Reply #2 on: April 08, 2012, 09:38:00 pm » |
trying to build one myself |
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« Reply #3 on: April 08, 2012, 11:24:42 pm » |
Linear regulator, or a switching regulator?
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SE USA
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« Reply #4 on: April 08, 2012, 11:43:23 pm » |
yes that is a big difference, ie lump of metal with wire wrapped around it and large, or tiny, efficient and more complicated
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« Reply #5 on: April 09, 2012, 02:27:34 am » |
This looks right - what do you guys think
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WV
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« Reply #6 on: April 09, 2012, 05:49:36 am » |
looks like that will work- dont forget the large heat sink |
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« Reply #8 on: April 13, 2012, 08:30:40 pm » |
I agree use a 7809, but also a transformer with a 12v secondary to reduce the size of the heatsink.
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