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Clean Coal and Nuclear Funding Cut from Stimulus

February 13, 2009 7:13 am | by Alix Paultre | Blogs | Comments

This "compromise" is an example of the misguided cuts that have been made in the stimulus package in the name of savings. "Clean Coal" and Nuclear power are among the best alternatives to oil we have, and to cut funding for these important technologies is shortsighted. "Clean Coal" and Nuclear power are among the best alternatives to oil we have, and to cut funding for these important technologies is

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Hybrid Couplers Target Wireless Band Applications

February 13, 2009 6:48 am | Product Releases | Comments

MECA’s 705 Series 3-dB, 90° hybrid couplers cover wireless band applications from UHF through UMTS (0.400 GHz to 2.200 GHz) with power levels to 500 W. The components are suitable for use as a duplexer for DAS head end systems or combining amplifiers for antenna sharing applications with high isolation. The units are equipped with

SMT Connector Exhibits 19.05-mm Mated Height

February 13, 2009 6:12 am | Product Releases | Comments

Designed for high-pin-count and high-density 1.27-mm pitch board-to-board applications, Advanced Interconnections’ B2B SMT connector has a mated height of 19.05 mm. The component offers 8- and 10-row configurations, from 240 to 500 positions, and a current rating of 3 A per pin. The unit employs screw-machined terminals with

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Sixteenth-Brick Converter Challenges Eighth-Brick Devices

February 13, 2009 4:54 am | Product Releases | Comments

Aimed at existing sixteenth-brick users who want to power higher-demand applications without redesigning boards for larger products (eighth-brick), the sixteenth-brick PKU-B DC/DC module from Ericsson can deliver an output of 5 V at 20 A. Using a line-regulated half-bridge configuration with the control circuit on the primary side, the 8.3-mm high EN60950-rated converter operates at up to 92% efficiency with a power density as high as 312 W/in2.

Interface IC Addresses Capacitive Sensors

February 13, 2009 4:39 am | Product Releases | Comments

Exhibiting a noise level of 30 aF, e2v’s CPIC2.0 interface IC enables acceleration, pressure, altitude, humidity, rain, level, and gas measurements in MEMS transducers with a base capacitance from 1 pF to 32 pF. The component contains a dual capacitor input enabling several configurations, including "Delta"Csens/"Sigma"Csens. The device embeds a temperature sensor and an EEPROM for storage of calibration parameters, temperature, and

LED Assemblies Offer Custom Brightness Options

February 13, 2009 3:51 am | Product Releases | Comments

Presenting blue, red, and green standard colors, Elma Electronic’s new line of LED assemblies can be customized to include different levels of indicating brightness for each LED within the same unit to meet a specific indicating goal. Customized colors, such as orange, amber, and white, are also available.  Most LED designs are

Where Do the LEDs Belong?

February 12, 2009 12:14 pm | by Alfred Poor, Contributing Editor | Articles | Comments

At CES 2009 in Las Vegas this year, it appeared that every major LCD TV manufacturer had at least one model with an LED backlight. It quickly became apparent that there are some clear advantages to using LEDs as the light source, but a closer look at the way this solid state lighting is implemented raises some interesting questions. First, let’s cover the plus side.

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Amplifiers Based on Gallium Arsenide Technology

February 12, 2009 9:35 am | Product Releases | Comments

Based on gallium arsenide (GaAs) integrated circuit (IC) technology, five broadband power amplifiers from Teseq are intended for EMC testing environments with non-ideal load conditions. Operating from 0.8 GHz to 3.1 GHz and 2 GHz to 6 GHz, the amplifiers feature power levels ranging from 30 W to 450 W. All units are powered from a switched mode power supply

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Pushbutton Switch Has Multiple LED Color Options

February 12, 2009 9:19 am | Product Releases | Comments

The LP1 series, an illuminated round pushbutton switch from E-Switch, features multiple LED color options of blue, green, red, white, and yellow. Features include: electrical life of 50,000 cycles; operating force of 250 +/- 100 gf; contact rating of 100 mA @ 30 VDC; contact resistance of 50 milliohms; insulation resistance of 100 Megaohms (Min. @ 500 VDC); and dielectric strength

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6LoWPAN Goes Where ZigBee Can't

February 12, 2009 8:25 am | by Jon Titus, Senior Technical Editor | Articles | Comments

Many “standard” and proprietary protocols use the media-access controller (MAC) and the physical circuits (PHY) associated with IEEE 802.15.4 radios. Those protocols use their own arrangements of bits and bytes to transfer information between nodes, but none of them use the Internet Protocol (IP). So they cannot directly communicate with Internet-based devices and Web servers/browsers.

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Module Enables PCIe Expansion

February 12, 2009 8:24 am | Product Releases | Comments

Consisting of a PCIe host card, cable, and chassis, Magma’s ExpressBox² (EB2) seamlessly expands the available PCIe slots of desktops, workstations, servers, and laptops. The unit supports communication bandwidth between host and

Take a Top-Down View of Industrial Imaging

February 12, 2009 8:23 am | by Jon Titus, Senior Technical Editor | Articles | Comments

Before you think about using an industrial imaging system to solve an inspection problem, you must exactly define the problem or problems you need to solve. To start, John Keating, product marketing manager at Cognex breaks vision tasks into four categories: inspection that detects flaws, gauging that performs a dimensional measurement, identification that reads information, and guidance that directs movement.

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Achieving High Efficiency with Power Switches

February 12, 2009 8:18 am | by Gwan-Bon Koo, Senior Engineer, Fairchild Semiconductor | Articles | Comments

In general, high frequency operation allows the use of small-sized passive components in switch mode power supplies (SMPS), while it causes switching losses to increase in a hard switching mode. To reduce switching losses at high switching frequencies, many soft switching techniques have been developed. Among them, load resonant techniques and zero voltage transition techniques are widely used.

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Data Logger Measures Temperature/Relative Humidity

February 12, 2009 7:46 am | Product Releases | Comments

Performing over the 0%-to-100% RH and -35°C-to-80°C measurement ranges, Measurement Computing's USB-502-LCD standalone data logger measures and stores up to 16,379 relative humidity and 16,379 temperature readings. The LCD window shows measurements and logger status information, and a button enables

Diode Laser Delivers 500 W

February 12, 2009 7:13 am | Product Releases | Comments

At 976 nm, DILAS’ new fiber-coupled, multi-bar diode laser provides up to 500 W output through a cladding-mode-free QBH 400-µm core diameter fiber with a numerical aperture of <0.2 and WPE of >35%. The device can be packaged in up to 12-bar configurations, and only requires industrial water for cooling. The module demonstrates

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