REGISTER | LOGIN
Breaking News
Comments
Newest First | Oldest First | Threaded View
K.Brown
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
K.Brown   5/4/2012 10:29:51 PM
NO RATINGS
Is there any explanation of how the current profile lookup table works that someone could point me towards? I have read the entire datasheet 1.5 times ;) It gives no hint as to what values to fill the registers with. Thanks

MrDave
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
MrDave   11/22/2011 6:39:11 PM
NO RATINGS
Thanks

arashv60
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
arashv60   11/3/2011 8:53:55 AM
NO RATINGS
very good article,

Saminathan
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
Saminathan   11/1/2011 7:30:23 AM
NO RATINGS
Very good and informative article

David Ashton
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
David Ashton   10/29/2011 9:43:56 AM
NO RATINGS
If anyone else is interested, the full diagram for fig 2 is Fig 7 in the L9942 data sheet at http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00072898.pdf

David Ashton
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
David Ashton   10/29/2011 9:26:57 AM
NO RATINGS
Nice article, but would it be possible to put in a link to the full figure 2 diagram...the 2 parts are different scales and not easy to stitch together.

prabhakar_deosthali
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
prabhakar_deosthali   10/29/2011 8:57:53 AM
NO RATINGS
A very informative article . The graphics are superb. I believe this back EMF is also used in brush less DC motors in a sensor less commutation control.

Robotics Developer
User Rank
Author
re: Back EMF method detects stepper motor stall: Pt. 1-The basics
Robotics Developer   10/28/2011 5:00:08 PM
NO RATINGS
A good article with nice details! Thanks. I really liked the graphics and the text overlays that expand upon what we are seeing. It looks like a rational approach that is both economical and well thought out. I wonder now how I can use this in other applications..



Like Us on Facebook
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Martin Rowe

Test Tool Finds Ethernet Wiring Errors
Martin Rowe
Post a comment
When my house was renovated several years ago, I had the electrician install network outlets in numerous places, then run the LAN cables to a wiring closet. But he didn't document the ends ...

Martin Rowe

Local Electronics Store Supplies Engineers and Hobbyists
Martin Rowe
5 comments
Rochester, N.Y. — Tucked away in this western New York city known for its optics is Goldcrest Electronics, a local store that's supplied businesses and individuals with electronic ...

Martin Rowe

How to Transform a Technology University (Book Review)
Martin Rowe
1 Comment
The Presiding Genius of the Place by Alison Chisolm. WPI, Worcester, Mass., 234 pp., 2016. Engineers love to discuss, and often criticize, engineering education. They often claim ...

Max Maxfield

Aloha from EEWeb
Max Maxfield
Post a comment
Just a few minutes ago as I pen these words, I posted this blog about this month's Cartoon Punchline Competition over on EEWeb.com.