View Comments: Newest First|Oldest First|Threaded View
Jon Titus
User Rank
Re: Important Attribute
Jon Titus   9/17/2012 12:06:58 PM
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.

User Rank
Important Attribute
tekochip   9/16/2012 8:12:57 PM
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
Yes, more kits coming...
Jon Titus   9/15/2012 1:14:26 PM
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
Charles Murray   9/14/2012 5:57:08 PM
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
When Charlie Miller and Chris Valasek made headlines by hacking and crashing a Jeep last year, the event followed many months of study and trials.
A unique set of multi-network servo drives introduced by Mitsubishi Electric enables the company’s servo motion capabilities to be integrated into EtherNet/IP, EtherCAT, or PROFINET networks.
With a better understanding of materials’ response to load and temperature, researchers could potentially use the knowledge to improve design. The research could even help geologists studying plate tectonics.
A panel on cybersecurity at ARM TechCon called for regulations to protect the security of connected devices.
Do you wear your ugly Christmas sweater while fighting zombies, or simply chill in front of your homemade entertainment center while your automated cat feeder keeps your feline friend at bay? Whatever you prefer, one of the following gadgets is sure to get your DIY motor running.
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 10 - 14, Embedded System Design Techniques™: Getting Started Developing Professional Embedded Software
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10

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 Course November 8 - 10:
Sponsored by 3M
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service