> peteHVAC wrote:
> > I'm adapting a forklift motor to power my trusty 72 beetle.
> > So far the mechanical part has been easy. The motor is a 36V 90lb
> > monster and I'm guessing it can draw upwards of 500A. Controlling
> > this much power has me stumped. I have the SCR control board from
> > the forklift but no schematics. I have found a lot of sites selling
> > controllers but not too much info on doing it yourself and looking up
> > the components for the original controls hasn't turned up anything. If
> > anyone can steer me in the right direction I'd be very grateful.
> >
> > Thanks, Pete
> >
> take a look at the OSMC for a place to start.
> some big power mosfets IRF1405's and some decent fet drivers and your
> done ;->
> easy lol
> --

Thanks for the link. Very nice I'm now a new member.
The fets look nice too. I know what the datasheet says but can they really
be run
at that current? The leads are so small. It doesn't seem right 6 gauge wire
hooked
to a few little fets. I guess there is only one way to find out.

I heard tell that measuring resistance of the motor and multiplying by
voltage would
give a close value of the lock rotor amps. any truth in this?

Any good books about dc motor control?

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