Subject:
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Re: motor current trick
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 27 Oct 1999 03:13:51 GMT
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Original-From:
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Nick Taylor <ntaylor@iname.com>
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Viewed:
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1029 times
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A couple of easy things that you can do to increase the current
capabilities of the motor drivers are: (1) replace the L293Ds with
SN754410 chips (available from Acroname), and (2) piggyback one
H-bridge chip on top of the other to handle almost double the max
current. I haven't tried paralleling the motor driver outputs
myself, but I seem to remember it being mentioned on this list
some time ago.
Good luck,
- Nick -
Jonathan Pennington wrote:
>
> I've got a great R/C track vehicle that I want to use as a robot
> chassis, problem is the 1 Amp motors. I was going to use Kam's
> suggestion, but then I saw the Sonar schematics. I noticed that the
> sonar schematics have power coming from the motor outputs in parallel to
> increase the current to the sensors range. Can I do that with a motor?
> It seems that I could code it so that one call starts two motor outputs
> simultaneously, and run the outputs in parallel to get a current pretty
> near 1A. That's even simpler than Kam's idea.
>
> Of course, I'm assuming that since I haven't seen it brought up before,
> that it's not a good option, I just like to keep things simple. I don't
> want to stress anything, but it seems to me that that would work. Any
> ideas?
> --
> ___________________________________________________________________________
> Jonathan Pennington | -Wannabe Geologist/Anthropologist
> Charleston, SC | -Linux User and Advocate
> Email at jwp(at)awod.com | 83 V45 Magna "The Lighter Side"
> root@localhost (Spambot food) | 71 Triumph TR6C "Money Pit"
> ----------------------------------------------------------------------------
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Message is in Reply To:
 | | motor current trick
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| I've got a great R/C track vehicle that I want to use as a robot chassis, problem is the 1 Amp motors. I was going to use Kam's suggestion, but then I saw the Sonar schematics. I noticed that the sonar schematics have power coming from the motor (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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