HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
Jon Titus
User Rank
Blogger
Re: Important Attribute
Jon Titus   9/17/2012 12:06:58 PM
NO RATINGS
Thanks, tekochip, for your comments about the FETs.  That's an important point for designers to keep in mind.  As people work with and modify the BLDC algorithms they should keep in mind how to leave the motor drivers in a "safe" state under conditions specific to their design.

tekochip
User Rank
Platinum
Important Attribute
tekochip   9/16/2012 8:12:57 PM
NO RATINGS
 
When working on a BLDC design it's very important that the software development kit disengage the FETs when breakpoints are hit and place some of the other hardware like PWMs in a safe state.  TI does a great job of handling the important hardware aspects of a BLDC development kit.


Jon Titus
User Rank
Blogger
Yes, more kits coming...
Jon Titus   9/15/2012 1:14:26 PM
NO RATINGS
Hi, Charles.  Driving a brushless-DC (BLDC) motor takes a lot more than connecting it to power. Commutating the stationary coils requires algorithms that sense a motor's state and apply current accordingly. The processor manufacturers have chips that can handle the algorithms and some of them also have the power transistors used to drive the coils. When they provide a kit that includes all of the electronics and demonstration code and other software, they give engineers and product designers a good place to start.  Most of the semiconductor manufacturers who have these capabilities do or will offer kits.  People should first determine the type of motor they plan to use and then buy a kit that will let them experiment with that motor. Code supplied by processor vendors lets users start to experiment and "tune" algorithms quickly.

Charles Murray
User Rank
Blogger
Other
Charles Murray   9/14/2012 5:57:08 PM
NO RATINGS
Given the complexity of some of today's applications, a motor drive development kit makes sense, Jon. I'm curious whether all of the big electronics suppliers are coming out with similar kits these days.



Partner Zone
Latest Analysis
Robots came into their own in the 1970s. Gone were the low-budget black-and-white B movies. Now robots roamed in full-color feature films with A-list actors.
The rear window on Ford's Lightweight Concept vehicle, based on the Fusion model, is made with a material combination devised by SABIC that saves 35% of the weight. The car's overall weight is 25% lighter than a standard production 2013 Fusion.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
There is still time to get in your gadgets for the Design News and Allied Electronics second annual Gadget Freak of the Year contest. The top three gadgeteers will be awarded a total of $10,000.
Major global metropolitan areas are implementing a vast number of technology, energy, transportation, and Internet projects to make the metropolis a friendlier, greener, safer, and more sustainable place to be.
More:Blogs|News
Design News Webinar Series
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
5/8/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 21 - 25, Design Products With Bluetooth Low Energy
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service