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.
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.
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.
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.
For 3D printing to make the jump from rapid prototyping to manufacturing, engineers will need to find easier ways to move products from their CAD screens to their printers.
Gigabit and PoE are two networking technologies moving ahead in tandem as industrial users power remote Ethernet devices such as IP security cameras at 1,000 Mbps over existing CAT5 cable.
New versions of BASF's Ecovio line are both compostable and designed for either injection molding or thermoforming. These combinations are becoming more common for the single-use bioplastics used in food service and food packaging applications, but are still not widely available.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
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For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.
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