I'm ahead of the curve, it seems. A few years ago, I used the hall-effect to sense current in a 3-phase DC motor (for a fuel pump on a UAV). It worked out well for the application.
I just finished a current sensing application last Summer. I've been itching to use a Hall effect since then, but haven't had a chance. Having an isolated solution with no power draw would have been beautiful on my last product. NVE has some great products to use, as well as a part that includes a current trace inside the package.
Excellent article. Low cost, good power management and compact design are all compelling advantages for these applications. Along with the control advantages of course. Will be interested to see specific applications that can use this technology.
This is exciting. Current sensing is becoming more and more critical in applications requiring the most efficient systems to report back valuable information on loads. I am happy to see there are companies out there gaining interest in this sort of IP so I would forecast a step towards increased resource conservation. Considering how efficient EV's and self-sustaining industrial buildings have become in recent years, the sensor market can only be breaching the threshold of impressive expansion; since most cars on the road still pollute with combustion engines and many factories herein carry the same output characteristics, I would be surprised if this market picks up speed.
On April 21, NASA launched a novel project, putting into orbit three satellites that employ an off-the-shelf commercial smartphone as the control system.
The legacy endpoint devices that control our critical infrastructure (utility systems, water treatment plants, military networks, industrial control systems, etc.) are some of the most vulnerable devices on the Internet.
In a switched-capacitor filter, capacitors and switches take the place of resistors and accurately reproduce the characteristics of continuous-time Bessel, Butterworth, and elliptical filters.
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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