Looking for 110vac to 5vdc power supply schematic.

J

Junkmail789

Guest
Trying to find a kit or schematic for a power supply that will convert
110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with a
search didn't have any luck.

Thanks,

Matt S.
 
Junkmail789 wrote:

Trying to find a kit or schematic for a power supply that will convert
110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with a
search didn't have any luck.

Thanks,

Matt S.
Click to expand...
You didn't say what amperage you needed, so I drew up a 3 amp supply.
See the schematic at http://www.fncwired.com/5VoltExample
Hope this helps,
Brian


--
Building user friendly software for electronics. http://www.fncwired.com
 
On Fri, 5 Sep 2003 21:49:00 -0400, "Junkmail789"
<junkmail789@comcast.net> wrote:

Trying to find a kit or schematic for a power supply that will convert
110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with a
search didn't have any luck.
Click to expand...
You also need to spec amperage. 200 mA or 200 A?

Presuming you're a hobbyist or otherwise looking for an inexpensive
one-time (or very small volume) low current solution: get (or scrounge
from the junk pile) a 5 or 6 VDC wall wart and wire it to a DC-DC module
like http://www.mpja.com/productview.asp?product=2308+PS

It's probably not optimally efficient but it's a cheap plug-in solution.

--
Rich Webb Norfolk, VA
 
Thanks Guys,

I didn't mention amperage because I driving a couple IC logic chips, so I
figured it wasn't that important. What I am trying to make is a very CHEAP
water detection sensor.

I have the schematic for one at work, but it seemed like over kill. I was
thinking that I could use a gate IC to activate a buzzer or the relay to a
pump. (both of which I found kits for).

Sincerely,

Matt S.
"Rich Webb" <bbew.ar@mapson.nozirev.ten> wrote in message
news:camilvsd93ds106p6d08hqg3ad2v2mu57c@4ax.com...
On Fri, 5 Sep 2003 21:49:00 -0400, "Junkmail789"
junkmail789@comcast.net> wrote:

Trying to find a kit or schematic for a power supply that will convert
110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with
a
search didn't have any luck.

You also need to spec amperage. 200 mA or 200 A?

Presuming you're a hobbyist or otherwise looking for an inexpensive
one-time (or very small volume) low current solution: get (or scrounge
from the junk pile) a 5 or 6 VDC wall wart and wire it to a DC-DC module
like http://www.mpja.com/productview.asp?product=2308+PS

It's probably not optimally efficient but it's a cheap plug-in solution.

--
Rich Webb Norfolk, VA
Click to expand...
 
Get an old PC power supply, it has 5VDC.
"Junkmail789" <junkmail789@comcast.net> wrote in message
news:F6KcnS6mQtmYoMSiXTWJjw@comcast.com...
Trying to find a kit or schematic for a power supply that will convert
110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with
a
search didn't have any luck.

Thanks,

Matt S.
Click to expand...
 
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