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Old October 21st 03, 07:27 AM
David
 
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Default 12 volt power supply?

If you have a design, I would really like to see it.

I am trying to get a design for a 12 volt DC to 12 volt DC regulated power
supply. The design is to provide 12 volts DC + or - 5% output from an input
of between 8 volts and 16 volts DC.
The purpose of this is to run a computer in a sail boat. The battery voltage
in the boat may vary from 8 volts to 16 volts when it is charging.

I currently have an ATX computer power supply that runs off 12 volts DC, it
provides 3 and 5 volts nicely, but the 12 volt rail is actually the input
voltage. So, when the input is 12 volts all is well, if it goes high, well
that could be a real problem, and if it goes low, the computer will shut
down. If you can help it would be much appreciated



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Old October 21st 03, 02:27 PM
Jim Besse
 
Posts: n/a
Default 12 volt power supply?

David, I'm using an American Power Design DC-DC Converter to supply
12VDC at a LCD. Not quite as satisfying as building one but it does
work fine. What brand of 12VDC ATX power supply are you using and
where did you find it?

--
Jim

"David" wrote in message
...
If you have a design, I would really like to see it.

I am trying to get a design for a 12 volt DC to 12 volt DC regulated

power
supply. The design is to provide 12 volts DC + or - 5% output from

an input
of between 8 volts and 16 volts DC.
The purpose of this is to run a computer in a sail boat. The battery

voltage
in the boat may vary from 8 volts to 16 volts when it is charging.

I currently have an ATX computer power supply that runs off 12 volts

DC, it
provides 3 and 5 volts nicely, but the 12 volt rail is actually the

input
voltage. So, when the input is 12 volts all is well, if it goes

high, well
that could be a real problem, and if it goes low, the computer will

shut
down. If you can help it would be much appreciated




  #3   Report Post  
Old October 22nd 03, 04:55 AM
David
 
Posts: n/a
Default 12 volt power supply?

Where do you get these from "American Power Design DC-DC Converter " ?
The 2 units I am toying with at this stage are
1. http://www.procase.com.tw/mainpage2003.htm available in Australia from a
local distributor http://www.pcicase.com.au/ It is inside the Cubid 2677
case.
2. http://www.traverse.com.au/products/default.asp?p=42 This company makes
their own power supply for this server.


"Jim Besse" wrote in message
news:[email protected]
David, I'm using an American Power Design DC-DC Converter to supply
12VDC at a LCD. Not quite as satisfying as building one but it does
work fine. What brand of 12VDC ATX power supply are you using and
where did you find it?

--
Jim

"David" wrote in message
...
If you have a design, I would really like to see it.

I am trying to get a design for a 12 volt DC to 12 volt DC regulated

power
supply. The design is to provide 12 volts DC + or - 5% output from

an input
of between 8 volts and 16 volts DC.
The purpose of this is to run a computer in a sail boat. The battery

voltage
in the boat may vary from 8 volts to 16 volts when it is charging.

I currently have an ATX computer power supply that runs off 12 volts

DC, it
provides 3 and 5 volts nicely, but the 12 volt rail is actually the

input
voltage. So, when the input is 12 volts all is well, if it goes

high, well
that could be a real problem, and if it goes low, the computer will

shut
down. If you can help it would be much appreciated






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Old October 22nd 03, 01:08 PM
Glenn Ashmore
 
Posts: n/a
Default 12 volt power supply?

Here is an off the shelf 270W PS that I am going to use to feed a
regulated 12VDC bus in the nav station:
http://www.powerstream.com/Produz10.htm

If you really want to DIY check out
http://www.powerdesigners.com/InfoWe...converter.shtm

David wrote:
If you have a design, I would really like to see it.

I am trying to get a design for a 12 volt DC to 12 volt DC regulated power
supply. The design is to provide 12 volts DC + or - 5% output from an input
of between 8 volts and 16 volts DC.
The purpose of this is to run a computer in a sail boat. The battery voltage
in the boat may vary from 8 volts to 16 volts when it is charging.

I currently have an ATX computer power supply that runs off 12 volts DC, it
provides 3 and 5 volts nicely, but the 12 volt rail is actually the input
voltage. So, when the input is 12 volts all is well, if it goes high, well
that could be a real problem, and if it goes low, the computer will shut
down. If you can help it would be much appreciated



--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

  #5   Report Post  
Old October 22nd 03, 04:28 PM
johnh
 
Posts: n/a
Default 12 volt power supply?

Unfortunately, the Powerstream units output 13.8 v not 12, or do they have
one that I didn't see?

john

"Glenn Ashmore" wrote in message
news:[email protected]
Here is an off the shelf 270W PS that I am going to use to feed a
regulated 12VDC bus in the nav station:
http://www.powerstream.com/Produz10.htm

If you really want to DIY check out

http://www.powerdesigners.com/InfoWe...converter.shtm

David wrote:
If you have a design, I would really like to see it.

I am trying to get a design for a 12 volt DC to 12 volt DC regulated

power
supply. The design is to provide 12 volts DC + or - 5% output from an

input
of between 8 volts and 16 volts DC.
The purpose of this is to run a computer in a sail boat. The battery

voltage
in the boat may vary from 8 volts to 16 volts when it is charging.

I currently have an ATX computer power supply that runs off 12 volts DC,

it
provides 3 and 5 volts nicely, but the 12 volt rail is actually the

input
voltage. So, when the input is 12 volts all is well, if it goes high,

well
that could be a real problem, and if it goes low, the computer will shut
down. If you can help it would be much appreciated



--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com





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Old October 22nd 03, 06:06 PM
Jim Besse
 
Posts: n/a
Default 12 volt power supply?

I bought directly from the manufacturer...

http://www.apowerdesign.com/

--
Jim Besse
"David" wrote in message
...
Where do you get these from "American Power Design DC-DC Converter "

?
The 2 units I am toying with at this stage are
1. http://www.procase.com.tw/mainpage2003.htm available in Australia

from a
local distributor http://www.pcicase.com.au/ It is inside the Cubid

2677
case.
2. http://www.traverse.com.au/products/default.asp?p=42 This company

makes
their own power supply for this server.





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