Bulletin August 2014
We design and supply bespoke electronic solutions globally from our facility in Suffolk. Our designs save you money and improve your products capability and reliability using the latest electronic technology available. /more...
Our services include rapid prototyping, obsolescence & product re-engineering, upgrades, failure analysis or batch-manufacturing including all programming and functional test. /more...
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The Cirque d'hiver ("Winter Circus") in Paris, has been a prominent venue for circuses, concerts and other events since 1852. As part of their spectacular presentations they wanted to produce a waterfall that could create images in the falling water. In 2013 Circad were retained to develop the electronics controllers to produce these images.
The waterfall contains 288 water valves, each requiring 18 Watts of power to open or shut up to 10 times per second. The controlling PC sends a bitmap graphic at 10 pixel lines per second to the control unit, 100m away, to create the images in the falling water.
The technical challenge was to deal with the large amount of back EMF (ElectroMotive Force) and the constantly changing current draw generated by switching up to 3.5 Kilowatts 10 times a second.
Watch this video showing the first time the waterfall and software were tested together.
A DALI (digital addressable lighting interface) ballast controller allows a building management system to automatically control lighting depending on the time of day, ambient light and building occupancy. They are popular for controlling the lighting within bathrooms and corridors of large buildings where a cost saving can be made by not lighting un-occupied rooms.
DALI Ballasts were available for low power LED lighting. However, since only 64 Ballasts can be used on a single network, a lot of ballasts and networks are needed to control LED lighting within a building.
Circad were asked to design a ballast that was capable of driving three 10 Watt LED’s from the same node, meaning that a building could be lit by a single network. Installation of the product was required within 5 weeks from the request.
We created the schematic, laid out the PCB, wrote the firmware, built and fully tested 64 units, and delivered within 5 weeks. As the job was urgent we even attended site to ensure the installation went according to plan.
As hitech becomes commonplace through the growing popularity of smart phones and similar devices, users increasingly expect all the electronic products they use to function with the same level of sophistication.
Circad can help by writing an Android app to change the look and feel of your product. The display will change from a monochrome 320 x 240 pixels into a full colour 7 inch touch screen.
The Android operating system is a well established platform for tablets and mobile phones. We can connect this powerful operating system directly to your electronics, giving your customers a easy and familiar user interface.