Embedded Systems Conference
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..



Radio
LATEST ARCHIVED BROADCAST
Overview: Battle-hardened veterans of the electronics industry have heard of the “connected car” so often that they assume it’s a done deal. But do we really know what it takes to get a car connected and what its future entails? Join EE Times editor Junko Yoshida as she moderates a panel of movers and shakers in the connected car business. Executives from Cisco, Siemens and NXP will share ideas, plans and hopes for connected cars and their future. After the first 30 minutes of the radio show, our listeners will have the opportunity to ask questions via live online chat.
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...