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 Robotics / Handy Board / 6972
6971  |  6973
Subject: 
motor current trick
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Wed, 27 Oct 1999 03:03:25 GMT
Original-From: 
Jonathan Pennington <jwp@awod^NoSpam^.com>
Viewed: 
600 times
  
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 has 1 Reply:
  Re: motor current trick
 
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 (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)

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