Guest
Im trying to reduce a 12v DC power supply down to 5v DC to power a computer
CD-Rom.
Can any1 help me???
Thanx
Gareth
CD-Rom.
Can any1 help me???
Thanx
Gareth
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G
Graham Knott
Guest
penny@homemail.co.za wrote:
Have a look at http://homepage.ntlworld.com/g.knott/elect127.htmIm trying to reduce a 12v DC power supply down to 5v DC to power a
computer CD-Rom.
Can any1 help me???
Thanx
Gareth
P
petrus bitbyter
Guest
<penny@homemail.co.za> schreef in bericht
news:cZ-dnUibDLby2GzcRVn-3g@is.co.za...
news:cZ-dnUibDLby2GzcRVn-3g@is.co.za...
Im trying to reduce a 12v DC power supply down to 5v DC to power a
computer
CD-Rom.
Can any1 help me???
Thanx
Gareth
P
petrus bitbyter
Guest
<penny@homemail.co.za> schreef in bericht
news:cZ-dnUibDLby2GzcRVn-3g@is.co.za...
I have in front of my says it requires 5V/1.5A and 12V/1.5A. Another one
wants only 5V/1A en 12V/400mA. So you'd better find out first what you
really need.
The most simple way to make 5V out of 12V is using an 7805. Of course you
need a type that can provide the output current you need and you will have
to provide some some thorough heatsinking. You may have to throw away over
10W of energy.
petrus bitbyter
news:cZ-dnUibDLby2GzcRVn-3g@is.co.za...
Power requirements of computer CD-ROMplayers differ widely. The heaviest oneIm trying to reduce a 12v DC power supply down to 5v DC to power a
computer
CD-Rom.
Can any1 help me???
Thanx
Gareth
I have in front of my says it requires 5V/1.5A and 12V/1.5A. Another one
wants only 5V/1A en 12V/400mA. So you'd better find out first what you
really need.
The most simple way to make 5V out of 12V is using an 7805. Of course you
need a type that can provide the output current you need and you will have
to provide some some thorough heatsinking. You may have to throw away over
10W of energy.
petrus bitbyter
H
HKJ
Guest
"petrus bitbyter" <p.kralt@reducespamforchello.nl> wrote in message
news:fOcId.3305$Pj6.2840@amsnews02.chello.com...
news:fOcId.3305$Pj6.2840@amsnews02.chello.com...
Download and use http://hjem.get2net.dk/hkj/miscel.html page "Power supply"Im trying to reduce a 12v DC power supply down to 5v DC to power a
computer
CD-Rom.
Can any1 help me???
J
JeB
Guest
On Fri, 21 Jan 2005 20:09:49 +0200, <penny@homemail.co.za> wrote:
might need.
almost free around here ... you'd get your 5v and anything else youIm trying to reduce a 12v DC power supply down to 5v DC to power a computer
CD-Rom.
I don't know about .za but used computer power supplies can be had for
might need.
B
Bill Bowden
Guest
penny@homemail.co.za wrote:
One way is to use a 7805 fixed regulator, or you can use
a adjustabe regulator such as shown here:
http://ourworld.compuserve.com/homepages/Bill_Bowden/page12.htm#317.gif
-Bill
Im trying to reduce a 12v DC power supply down to 5v DC to power a
computer
CD-Rom.
Can any1 help me???
Thanx
Gareth
One way is to use a 7805 fixed regulator, or you can use
a adjustabe regulator such as shown here:
http://ourworld.compuserve.com/homepages/Bill_Bowden/page12.htm#317.gif
-Bill