ChrisB17

Ok so I want to test some electric motors I got. I want to test mods I did with them and I want to push them to the limit. I was wondering if there is a device that is AC powered that I can hook a DC Rc motor up to via alligator clips and then control the power and speed of the motor manually. This is what I had in mind. Anything I can buy? Can someone like me to something similar? Thanks.

*Plz excuse the lack of artistic talent*

HJJFFFAA

Variable output power supply should work. Like the ones you find in high school science rooms. Still unloaded doesn't mean much. And if you are going to be putting a load on them you might as well get a proper ESC rated well past whatever the motor will be able to pull.

sheograth

Yeah what you want is a variable power supply that can handle those specs. You could just use an eac and a radio though.

ChrisB17

Will this work? I cant tell if I can hook it into my AC wall socket tho.


http://skycraftsurplus.com/index.asp...OD&ProdID=1669

firehopper

not enough current.
its only rated for 2amps

you need something that can push out up to 30amps if you load the motors at all

ChrisB17

I cant find anything close to 30 amps. Anyone got a link to one?

misasi

You are better off buying an ESC an a radio. A good quality variable power supply will cost you hundreds of dollars. Especially one that will put out the amount of amps you need.

ChrisB17

Dang thats disappointing. [][]

rebuilder

Dont model trains run off this principle? An AC supply converted to DC then sent out thru the track to the trains. Big trains would need some amps i would think................just a thought.

Kitsune

My Feedback: (7)

Could indeed work if you find a pack that can deliver enough amps. I've done that with an old train pack I have, though after a short time at higher voltage it trips the overload protection on it.

I was thinking a rectifier for electro plating could work too, but those get expensive for big enough models ($300 and up). You are better off to just get an ESC to run the motor.

gelbschnee

Use a large battery and a high amp rated potentiometer. that would eliminate the AC power.

ChrisB17

http://www.muchmoreusa.com/motor-accys/index.html

What does that motor master device do? Is it the same thing I am talking about?

DaveG55

It will test the motors like you want. It's much more sophistuicated than what you describe.
But...It does not plug in to AC current. You will still have to have a power source, either a battery or power supply that can provide at least 25 amps.