[Shop-talk] DC to DC PS/charger

[Pat Horne]

Ron,

Finding a 19.x power DC/DC converter won't be easy, but you can get 
close looking for a power supply that as plus and minus 12v (or 24v) and 
a 5v that is separate from the higher voltage output. Buck the 5v supply 
against the 24v and you will have something close to 19v. I haven't 
tried this with switching supplies, but it worked with analog supplies. \

Another way, though not as elegant, is to buy a 24v converter and add a 
regulator to the output to get the voltage you need.

Either of these will cost more than an inverter to plug you power supply 
into.

Peace,
Pat
Thusly spake Ronnie Day, On 8/19/2012 4:30 PM:
> Just bought a Dell 17 inch laptop and have been looking for DC power
> supply/charger for it. The output of the AC supply is just over 19 volts DC
> @ almost 7 amps. I realize I could use an inverter and just plug the AC
> supply in to it, but that's a bulky kluge, IMO. Both the Accord and the
> Suburban have good sized console bins that I could stick the circuitry in
> and leave the output pigtail hanging out.
>
> I've be doing some online research, but haven't found any straight forward
> answers yet.
>
> Ron
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-- 
Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice		5026 FM 2001
Pat at HorneSystemsTx.com	Lockhart, TX 78644-4443
www.hornesystemstx.com
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