RE: (ET) ET Speed Control

["Rick Barnes" <barnesr nwlink com>]

Jeff:

Can you share the details of your PWM control system? Did you build this
yourself, or is it an off-the-shelf controller? Would you be willing to
publish your work so that others could duplicate it?

Thanks,
Rick Barnes
Aloha, Oregon

> -----Original Message-----
> From: owner-elec-trak cosmos5 phy tufts edu
> [mailto:owner-elec-trak cosmos5 phy tufts edu]On Behalf Of Jeff Dailey
> Sent: Tuesday, December 14, 1999 2:04 PM
> To: elec-trak cosmos5 phy tufts edu
> Subject: (ET) ET Speed Control
>
>
> I put out to the list a long time ago that I was
> running my ET on a PWM controller and did not get
> any response to it at that time.
> My ET has a shunt motor on it, to get the max. run
> time out of the battery for this type of motor you
> need a controller that has two PWM's in it.
> One for the armiture and one on the field.
> You turn the field on 100% and then ramp up the
> armiture to 100% at that point you decease the field
> PWM to increase the RPM of the motor till the armiture
> current drips. This is all done by a microcontroller.
> I use two 200Amp. FET's to do this
>
>
> Thank You
> Jeff Dailey
> Design Electronics
>
>
>
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