Powering a DC motor with AC
Powering a DC motor with AC
(OP)
What would you suggest as the most cost effective and space efficient way to run a 24v 10amp dc motor with 110v AC. Must be as portable as a cord will allow. An 8lb transformer with bridge rectifier isn't feasible, any other words of wisdom.





RE: Powering a DC motor with AC
1. A single SCR with a gate control that turns on pretty late in a cycle, limiting the applied voltage. You'd probably need an 8 lb flywheel to integrate the choppy torque, and you'd never get near rated torque, but it would 'run'.
2. A high frequency switching supply with 24VDC/10A output.
3. Do you really need full voltage and full current? Switchers get smaller and lighter if you don't need both. You didn't specify a load on the mechanical side.
Did you need variable speed? That costs extra.
Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA
RE: Powering a DC motor with AC
RE: Powering a DC motor with AC
RE: Powering a DC motor with AC
RE: Powering a DC motor with AC
Any switching power supply's I've come accross are rated in watts and one of this size is from $300-$1000. Am I barking up the wrong tree?
RE: Powering a DC motor with AC
You can control the speed by using a separate single 5K turn pot (one comes with it) or an isolated 0 - 10 VDC signal.
RE: Powering a DC motor with AC
Unfortunately, you can't access the specific model, but the series is shown, along with locations you can call.
I have used these drives on 1/2 HP, 50 VDC motors, and found them to work quite well.
BK
RE: Powering a DC motor with AC
http://www.kbelectronics.com/catalog_chassis.htm
"Venditori de oleum-vipera non vigere excordis populi"