×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

IC for a reversing type motor

IC for a reversing type motor

IC for a reversing type motor

(OP)
Hi,

I need to operate a 12VDC 2-wire PM motor in both directions. I will be interfacing it through a microcontroller. What i am asking is if there is an IC that operates on 5V and can control the 12V (and polarity) that will control the motor.  Or is there a method anyone can suggest with maybe using a solid state relay IC and another IC.  I just need to be able to operate a motor in forward and reverse through programming and not by physically switching the polarity on the motor terminals.

Thanks for the help.  

RE: IC for a reversing type motor

Search the web for a thing called an "H-Bridge"....

RE: IC for a reversing type motor

Have a look at motor control IC's at ST Microelectronics

http://www.st.com/

RE: IC for a reversing type motor

How much is the current?

<nbucska@pcperipherals DOT com> subj: eng-tips

RE: IC for a reversing type motor

(OP)
The motors will be drawing approximately 4amps

RE: IC for a reversing type motor

Try a DPDT relay.   It can easily be operated by 5V electronics, and has a higher current carry capacity than most simple IC solutions.  Otherwise, you may need to build your own H-bridge out of several discrete components... but if you need to go that route, you can check out International Rectifier (www.irf.com) to look at the drivers and transistors needed.  I think the relay is easier to understand, and quicker to develop, and might be cheaper too.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources