RE: [CAD_CAM_EDM_DRO] stepper amperage question

If the resistance of the load remains the same then doubling the voltage
doubles the current. The equation for current is I=E/R, so if E=1 volt and
R=1 ohm then I will be 1 amp. However, if E is doubled then E=2 volts so I
will become 2 amps.

-----Original Message-----
From: Bill Vance [mailto:ccq@...]
Sent: Thursday, March 07, 2002 10:42 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] stepper amperage question


Excuse me, but all other things being equal, doesn't doubling the voltage
usually _divide_ the amperage in two?

Bill

On Thu Mar 7 17:56:49 2002, Alan Marconett KM6VV, <KM6VV@...> wrote:

>Hi Kevin,
>
>All stepper motors want a limited amount of current. 3A in your case.
>Too much, and you fry the stepper (yes, doubling the voltage usually
>doubles the amperage)!
>