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Flyhighusa · 09-13-2008, 12:50 PM

I have been trying to make a 12V power supply for my Cellpro 4s Charger and I would like to add the following.

MAKE SURE you check the voltage of the "to be transformed" computer power supply.
I had drilled holes for the female banana plugs and the flip switch to turn the supply on and off, but even though the DELL supply says it is a 12V system it only puts out 10.99V

Just a reminder if you do want to make one of these. (which is a fun project by the way) make sure you check the voltage and also when drilling holes make sure no metal shavings will be getting in the power supply. This might prevent shorting and eventually a fire.

ps: I didnt make this video, This is a courtesy of Nightflyer. Thanks!

TheBum · 09-13-2008, 07:29 PM

Some people have claimed that in order to get a full 12V out of a computer PS, you have to put a load on the 5V.

Flyhighusa · 09-14-2008, 09:31 AM

Hmmm, never though of that one. Any suggestions?

mkoutnik · 09-15-2008, 10:27 AM

Check out these links...

http://www.wikihow.com/Convert-a-Com...b-Power-Supply
http://web2.murraystate.edu/andy.bat...OWERSUPPLY.HTM

In order to increase the output voltage, you must decrease the load resistor size...here's a discussion of how... http://web2.murraystate.edu/andy.bat...java_table.htm

Flyhighusa · 09-17-2008, 09:54 AM

Thanks for the reply mkoutnik

Flyhighusa · 09-29-2008, 10:00 PM

Ended up buying a new 320W microATX ad now has a nice and steady 12.3V output.

09-13-2008, 12:50 PM	#1 (permalink)
Flyhighusa Registered Users My HF Map location Join Date: Aug 2008	12V Computer Power Supply I have been trying to make a 12V power supply for my Cellpro 4s Charger and I would like to add the following. MAKE SURE you check the voltage of the "to be transformed" computer power supply. I had drilled holes for the female banana plugs and the flip switch to turn the supply on and off, but even though the DELL supply says it is a 12V system it only puts out 10.99V Just a reminder if you do want to make one of these. (which is a fun project by the way) make sure you check the voltage and also when drilling holes make sure no metal shavings will be getting in the power supply. This might prevent shorting and eventually a fire. ps: I didnt make this video, This is a courtesy of Nightflyer. Thanks!

09-13-2008, 07:29 PM	#2 (permalink)
TheBum HF Support My HF Map location Join Date: Jul 2007	Some people have claimed that in order to get a full 12V out of a computer PS, you have to put a load on the 5V. __________________ Alan (just call me "Bum"; no need to be so formal) HeliFreak Support Protos Max Evo 700 (Brain 2), Protos Max V2 770 (iKON 2), Synergy 516 (Brain 2), Oxy 2 (Falcon 12) Graupner MZ-32 Experience is something you gain only after you need it. I wouldn't mind social media so much if it didn't involve people.

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09-14-2008, 09:31 AM	#3 (permalink)
Flyhighusa Registered Users Thread Starter My HF Map location Join Date: Aug 2008	Hmmm, never though of that one. Any suggestions?

09-15-2008, 10:27 AM	#4 (permalink)
mkoutnik Registered Users My HF Map location Join Date: Sep 2006	Check out these links... http://www.wikihow.com/Convert-a-Com...b-Power-Supply http://web2.murraystate.edu/andy.bat...OWERSUPPLY.HTM In order to increase the output voltage, you must decrease the load resistor size...here's a discussion of how... http://web2.murraystate.edu/andy.bat...java_table.htm

09-17-2008, 09:54 AM	#5 (permalink)
Flyhighusa Registered Users Thread Starter My HF Map location Join Date: Aug 2008	Thanks for the reply mkoutnik

09-29-2008, 10:00 PM	#6 (permalink)
Flyhighusa Registered Users Thread Starter My HF Map location Join Date: Aug 2008	Ended up buying a new 320W microATX ad now has a nice and steady 12.3V output.

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