Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: horo333 on February 08, 2009, 07:20:27 AM

Title: DC motors help
Post by: horo333 on February 08, 2009, 07:20:27 AM
Ok, now maybe this post will help many people in understandin' the DC motors, now i have one question, do i need an H-bridge, or an motordriver to contr. my DC motors with the IC?
Title: Re: DC motors help
Post by: Razor Concepts on February 08, 2009, 10:02:30 AM
Yes

I found this helped me out a lot:
http://www.societyofrobots.com/member_tutorials/node/165
With the  SN754410 motor driver

(http://www.cs.binghamton.edu/~reckert/480/h_bridge.GIF)
Title: Re: DC motors help
Post by: MaltiK on February 08, 2009, 11:27:51 AM
A motor driver is an h-bridge but an h-bridge is not a motor driver... kinda like the all squares are rectangles, so either can control your motors from an MCU, but a motor controller is easier. Just an L293D will do the trick.
Title: Re: DC motors help
Post by: Webbot on February 08, 2009, 12:02:44 PM
Just an L293D will do the trick.

True. But the SN754410 is the modern replacement of the L293D. It is cheaper to buy, is pin compatible, and can supply more current.
Title: Re: DC motors help
Post by: horo333 on February 08, 2009, 12:52:52 PM
okeeeeeeeeeeeeeeeeeeee, you just made my llife a bit harfer, can you post me a link where i can buy an h-bridge,,,or just to buy new servos...
Title: Re: DC motors help
Post by: MaltiK on February 09, 2009, 05:35:40 AM
http://www.mouser.com/Search/ProductDetail.aspx?qs=CyooD0rhQjnvsC%2f8JC7BnA%3d%3d
Title: Re: DC motors help
Post by: horo333 on February 09, 2009, 08:39:02 AM
i'm from croatia(balkan, europe)