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
A Silicon Valley company has made the biggest splash yet in the high-performance end of the electric car market, announcing an EV that zips from 0 to 60 mph in 3.4 seconds and costs $529,000.
The biggest robot swarm to date is made of 1,000 Kilobots, which can follow simple rules to autonomously assemble into predetermined shapes. Hardware and software are open-source.
The Smart Emergency Response System capitalizes on the latest advancements in cyber-physical systems to connect autonomous aircraft and ground vehicles, rescue dogs, robots, and a high-performance computing mission control center into a realistic vision.
Tolomatic ERD actuator provides high-tolerance, high-force capabilities at a low cost to innovative medical therapy machine.
The diesel engine, long popular on European roads, is now piquing the interest of American automakers.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
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
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 8 - 12, Get Ready for the New Internet: IPv6
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: September 30 - October 2
Sponsored by Altera
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