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Subject: 
Re: High current motors
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Thu, 4 Apr 1996 20:50:02 GMT
Original-From: 
MAR ERICSON <mar@cooper.eduIHATESPAM>
Viewed: 
2125 times
  
How about this one? ...to enable two directional rotation.



              _______________ motor ________________
              |         |              |            |
             ->        /              /            ->
           |/        |/             |/           |/
        ---|      ---|           ---|         ---|
        |  |\     |  |\          |  |\        |  |\
        |    \    |    ->        |     ->     |    \
        |     |   |     |        |      |     |     |
        |     |   |     |        |      |     |     |
        |    vcc  |    gnd       |     gnd    |    vcc
        |         |              |            |
        |         |              |            |
        |         |              |            |
        |         |              |            |
     forward   reverse        forward      reverse
     output    output         output       putout


where the transistors again are high current ones (greater that 6mA).

I think this would work but perhaps there's a better way to drive
more powerful motors with the handyboard?


It would work but it would be uni-directional.

--Chuck

----------
From: MAR ERICSON[SMTP:mar@cooper.edu]
Sent: Wednesday, April 03, 1996 11:27 AM
To: handyboard@media.mit.edu

Does anyone know if you can do this to the L293D chip to increase the current?




                         _____- motor +________
                        /                      |
L293D                 |/                       |
motor output__________|                        +
                      |\
                        \->-                baterry
                            |
                            |                  -
                            |                  |
                            |                  |
                            --------------------

The transistor in the center would be a high current one.

Would this work?








Message is in Reply To:
  RE:
 
It would work but it would be uni-directional. --Chuck ---...--- From: MAR ERICSON[SMTP:mar@cooper.edu] Sent: Wednesday, April 03, 1996 11:27 AM To: handyboard@media.mit.edu Does anyone know if you can do this to the L293D chip to increase the (...) (29 years ago, 3-Apr-96, to lugnet.robotics.handyboard)

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