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Dear Sir/Madam
Due to various reasons the cost for energy respectively power is increasing rapidly. Therefore it is necessary to use power extremely efficient and to find new power sources. This newsletter shows you some examples. Enjoy!
Wolfgang Patelay
Technical Editor, EPN
Pinned DC/DC Modules (Ericsson Power Modules)
Offering users a pinned version of the MacroDens PKR DC/DC module, Ericsson Power Modules' PKR-PI is based on the same proprietary board-to-board technique that was developed to reduce the amount of molding. The PKR-PI is aimed at designers who do not require surface-mount modules and who prefer conventional, through-hole-assembly methods and the deployment of pinned modules.
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Non-Isolated DC/DC Converters (Tyco Electronics Power Systems)
The Austin MegaLynx POL (Point-of-Load) DC/DC converters are designed to meet the power needs of the latest generation of FPGAs and ASICs. The four versions deliver up to 30A in an efficient SMT package.
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DIN-Rail Power Supply (Puls Power Supplies)
Designed as a low-cost range, the CS series of DIN-rail power supplies have a low inrush current and will provide full output power in the temperature range of -25 to +60°C. Just as the more expensive QS series, the CS family can run at 120% of the rated output continuously up to +45°C.
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Digital POL Modules (Power One Europe)
The 60A ZY8160 module is a fully programmable DC/DC converter complete with power-management capabilities. When used with Z-Alliance-compatible ZM7000 series DPMs (digital power managers), the ZY8160 facilitates the complete elimination of external components for sequencing, tracking, protections, monitoring, and reporting.
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Selecting a Non-Isolated Point-of-Load Converter Module
Designers of distributed power architectures can select from a huge variety of non-isolated POL converters, offering various input and output ratings, efficiency levels and features, in numerous form factors. Making the right choice, without either under- or over-specifying the unit, has a powerful impact on the performance, reliability, cost and physical size of the end product. Paul Knauber from Murata Power Solutions gives tips in his article in EPN.
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Portable Power: Features abound, thanks to new battery chemistries
Just two years ago, lithium-Ion cells may not have met your system´s power requirements. In the cover story of EDN Technical Editor Margery Conner gives an overview what´s available now.
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Single op amp achieves doublehysteresis- transfer characteristic
In process-control applications requiring discontinuous controllers, the most elementary choice is a two-position-mode or on/off controller. This Design Idea by Herminio Martínez, Encarna García, and Juan Gámiz from the Technical University of Catalonia in Barcelona, Spain, shows one simple way to implement this controller. In this configuration, the Schmitt triggers around the operational amplifiers implement the negative and positive hysteresis, respectively.
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Circuits protect outputs against overvoltage
In test-and-measurement applications, you must provide over voltage protection for the output terminals of amplifiers, power supplies, and similar components. The conventional way to accomplish this task is to add series resistors with the output node along with the clamping diodes to power-supply rails or other threshold voltages. The circuit in the Design Idea by Dimitri Danyuk from Kiev, Ukraine, requires only a couple of external components to use an SSR for output-overvoltage protection.
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4| Market Research |
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Broadband Over Powerline a Home Networking Winner
Broadband over Powerline (BPL) has been emerging steadily over the past several years for in-home networking, access/utility company applications, and the technology is continuing strong growth, reports In-Stat. With no new cabling needed, broadband powerline networking is emerging as a winner in the race for multimedia home networking worldwide, the high-tech market research firm says.
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5| Book of the Month |
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Troubleshooting Switching Power Converters, by Sanjaya Maniktala
This book presents practical knowledge the author acquired rather painfully, while working "in the trenches" for several years in major engineering companies scattered across several continents. This is intended to be the mythical senior engineer's "bag of tricks," finally made available in the form of an easy-to-read book on your shelf. This book will make life for the ambitious power supply engineer much simpler --- besides reducing significantly, the rigorous requirement of having to be a senior engineer's protégé for years on end, just to gain a small measure of real success in this field.
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