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Timely Information Recently released products, normally available from stock. These front-line products are on their way to being fully released. Links to all sorts of "good stuff": Articles, Data Sheets, Patents... The latest from our apps engineers
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Current Feature Articles Volume 43 — November 2009 Synchronizing Device Clocks Using IEEE 1588 & Blackfin Embedded Processors IEEE 1588 defines a protocol to synchronize distributed clocks on a network. The preferred clock synchronization method for many applications, it is cost-effective, supports heterogeneous systems, and provides nanosecond-level synchronization. The ADSP-BF518 Blackfin® processor includes dedicated hardware support for IEEE 1588. This article shows clock synchronization performance obtained using this solution. Isolation in High-Voltage Battery Monitoring for Transportation Applications Battery stacks for transportation can provide hundreds of volts. These high voltages can prove lethal to human beings—and even lower voltages can damage electronic equipment—so safety is a key concern. Although these stacks are inherently dangerous, they must still communicate with the cell monitoring electronics. Galvanic isolation is thus required to make the communications method safe and reliable. Phase Response in Active Filters, Part 2: Low-Pass and High-Pass Responses The transfer function of an active filter can be viewed as the cascaded response of the filter transfer function and an amplifier transfer function. This article examines the phase shift of the filter transfer function itself. While filters are designed primarily for their amplitude response, the phase response can be important in applications such as time delay simulation, cascaded filter stages, and especially process-control loops. Copyright 1995- Analog Devices, Inc. All rights reserved. ISSN 1552-3284 |
The Back Burner: Design Ideas, Tutorials, Measurement Techniques Using Isolated RS-485 in DMX512 Lighting Applications Theatrical lighting applications have evolved from lanterns in open-air theatres into the more complex systems available today. Modern lighting equipment includes dimmers, flashing lights, moving lights, colored lights, and gobos. These lighting systems are often controlled over long distances—up to 4000 feet—using the DMX512 communications protocol. Automobile Tail Lamp and Brake Lamp Controller Light emitting diodes (LEDs) are recently finding uses in automobiles, where they provide signaling, daytime running lights, and interior lighting. As this technology hits the road, manufacturers continue to investigate new ways to apply it, taking advantage of the styling possibilities afforded by LED headlights and taillights. |
