Alt-BEAM Archive
Message #04511
To: beam@sgiblab.sgi.com
From: Richard Piotter richfile@rconnect.com
Date: Tue, 15 Jun 1999 12:14:47 -0500
Subject: [alt-beam] Re: MOTOR DRIVER QUESTION
Since switching to the 6 Transistor H-Bridge, I have yet to return to
any other driver method! I find the H-Bridge to work for most projects
quite nicely. I do however plan on getting the components for a reverser
for Bronco and MECI IV M.
If I can make it small enough, I'll even consider upgrading Walkman Jr.
Spyder my be LIVING of of MUXs! 4 easily, maybe 8!
Personaly, I have always gone with the transistor method, but I have a
bunch of 245s. maybe I should try them out.
"van Zoelen, Bram SSI-TSEA-352" wrote:
>
> It depends on what you planning to do with it.
>
> A H-bridge is more like a standard all use workhorse. Often it is overkill
> for the task you want it to do. A Z-bridge and a 240 chip is only suitable
> for low current apps otherwise you have to stack them. This will produce
> nice little driver packages and cheap too.
>
> Bram
>
> > ----------
> > From: SG[SMTP:sparkyg@seark.net]
> > Reply To: beam@sgiblab.sgi.com
> > Sent: Tuesday, June 15, 1999 12:17 AM
> > To: beam@sgiblab.sgi.com
> > Subject: MOTOR DRIVER QUESTION
> >
> > ok, nobody answered my question so i'll ask it again.
> >
> > is there any preference on motor drivers?
> > h-bridge, z-bridge, 74hct240 IC (miller's tutorial) ?
> >
> > h-bridge was kinda tricky, (ruined em on my 1st two trys) but i can master
> > it if you guys think it's wrth the effort.
> > local elec supply shop wants $1.40 each for their 2N3904 transistors
> > thats over $10 for two h-bridges (four "04's" each h-bridge) and the IC
> > only cost $1.20 at Rat Shack.
> > sooo. anyone have luck with one more than the other?
> > Soldering iron is waiting for some feedback b4 it gets pluged in.
> > would appreciate any help
> > -Sparky
> >
--
Richard Piotter
richfile@rconnect.com
The Richfiles Robotics & TI web page:
http://richfiles.calc.org
For the BEAM Robotics list:
BEAM Robotics Tek FAQ
http://people.ne.mediaone.net/bushbo/beam/FAQ.html
------------------------------------------------------------------------
eGroups.com home: http://www.egroups.com/group/alt-beam
http://www.egroups.com
- Simplifying group communications
Home