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Subject: 
Re: High current motors
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Thu, 4 Apr 1996 03:56:09 GMT
Original-From: 
MAR ERICSON <mar@cooper.#NoMoreSpam#edu>
Viewed: 
3902 times
  
Do you have to choose a transistor that will switch somewhere near and below 9 volts? Cause Fred mentioned that the handyboard is rated for 9V motors. But, does this mean that the pulse generator make 9V square waves?

> 
> 
> Yep, I've done just that, and also for relays to drive AC motors. it's a
> kludge, but it can work.
> 
> Cheers,
>  - Mike
> 
>  ----------
> From: MAR ERICSON
> To: handyboard
> Date: Wednesday, April 03, 1996 2:27PM
> 
> 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?
> 
> 
> 



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