Aircraft - Electric - General Batteries and Chargers Can I put two 12v bench power supplies in series = 24v?
Can I put two 12v bench power supplies in series = 24v?
Just bought two of the 12v supplies from ramboy at 19.00 each. I would like to hook the outputs of these in series to create a 24v power supply. Is this possible or is there something that would prevent me from doing this?
Depends on if the outputs are floating or not.
Most DC power supplies are floating, so it is likely it will work.
Check the resistance of each output to all 3 wires on the electrical plug (neutral, hot and ground). If they are all open (or at least MegOhm magnitude resistance), it should work.
When I get them I'll check them per fliirs instructions. Thanks.
Last edited by rakm; Nov 19, 2003 at 12:23 PM.
No, you can't run with one shut down. The current will not flow thru the one that is off. Just tap a wire on your jumper between the two.
With one off using same leads I'm getting 12v, so it's working.
Just want to verify that I'm not going to cause damage, fire hazard, etc. running them this way.
And it looks like verifying that is exactly what you're now doing! It's not something that's normally done, so you're exploring unknown territory here. You're pushing current from an outside source through the rectifier and possibly the transformer secondary windings of the dead supply, but at the moment I can't think of any reason for that to cause problems. Be sure to let the rest of us know how your experiment turns out.