EDN.com Components and Products Design Center News, in-depth tutorial feature articles, and Design Ideas published in EDN.com's Components/New Products Design Center. en-us http://www.edn.com/community/47193/Components/New+Products.html Copyright 2009 Reed Business Information. Subject to its Terms of Use (http://www.edn.com/index.asp?layout=page&module=terms) Sun, 29 Nov 2009 12:53:09 PDT Evaluating ESD-protection components: Clamping voltage and dynamic resistance are crucial http://www.edn.com/article/CA6707788.html?rssid=240 A changing product landscape and new designs call for improved protection against ESD strikes on components. A low-voltage device doesn't necessarily have greater protection. Protection comes from low clamping voltage and low dynamic resistance. Thu, 26 Nov 2009 00:00:00 PDT Visionaire Lighting’s Solar Vision Pole: shedding light on off-grid lampposts http://www.edn.com/article/CA6707787.html?rssid=240 Certain applications justify paying a premium for high efficiency, long life, ruggedness, and light-color-temperature control, and these applications represent the sweet spot for HB LEDs (high-brightness light-emitting diodes). Thu, 26 Nov 2009 00:00:00 PDT Low-cost LCD-bias generator uses main microcontroller as control IC http://www.edn.com/article/CA6707785.html?rssid=240 Control a buck-boost switch-mode regulator with the same microcontroller that sends data to an LCD. Thu, 26 Nov 2009 00:00:00 PDT Self-oscillating H bridge lights white LED from one cell http://www.edn.com/article/CA6707784.html?rssid=240 Circuit operates on batteries as low as 0.6V. Thu, 26 Nov 2009 00:00:00 PDT Solar-powered sensor controls traffic http://www.edn.com/article/CA6707783.html?rssid=240 A traffic-sensor post measures vehicle location and speed at an intersection, providing an accurate, effective, inexpensive approach to monitoring traffic flow Thu, 26 Nov 2009 00:00:00 PDT Inspect solar cells without a microscope http://www.edn.com/article/CA6707782.html?rssid=240 Use a short-wave infrared camera to capture the image of an entire wafer. Thu, 26 Nov 2009 00:00:00 PDT PCB-layout techniques for gigasample ADCs http://www.edn.com/article/CA6705258.html?rssid=240 When a multilayer board operates at speeds greater than a few hundred megahertz, it's a challenge to maintain signals without mismatches, losses, distortion, or EMI. Follow these guidelines for PCB layout to preserve signal integrity and achieve high-speed performance. Thu, 12 Nov 2009 00:00:00 PDT Fader switch uses inexpensive controller http://www.edn.com/article/CA6705255.html?rssid=240 Control the brightness of an LED or incandescent lamp. Thu, 12 Nov 2009 00:00:00 PDT Use two phases to cut current and improve EMI http://www.edn.com/article/CA6705254.html?rssid=240 A two-phase SEPIC has lower output-capacitor current, which also improves reliability. Thu, 12 Nov 2009 00:00:00 PDT ADC for programmable logic uses one capacitor http://www.edn.com/article/CA6705253.html?rssid=240 Use a capacitor's charging and discharging time to sense a user input. Thu, 12 Nov 2009 00:00:00 PDT Negative-to-negative switch-mode converter offers high current and high efficiency http://www.edn.com/article/CA6705252.html?rssid=240 Don't let variations in input voltage affect the output voltage. Thu, 12 Nov 2009 00:00:00 PDT Voices: Leveling the playing field for small hardware start-ups http://www.edn.com/article/CA6702291.html?rssid=240 Chumby designer Andrew Huang is among the first of a new breed of small-hardware-system entrepreneurs using China's electronics supply chain. Thu, 22 Oct 2009 00:00:00 PDT Dual-coil relay driver uses only two MOSFETs http://www.edn.com/article/CA6702274.html?rssid=240 Detect X-axis position and indicate it with an LED. Thu, 22 Oct 2009 00:00:00 PDT Cable tester uses LEDs to find faults http://www.edn.com/article/CA6702273.html?rssid=240 Test as many as 16 wires with LEDs as continuity indicators. Thu, 22 Oct 2009 00:00:00 PDT Class B amplifier has automatic bias http://www.edn.com/article/CA6702272.html?rssid=240 Biased transistors minimize distortion. Thu, 22 Oct 2009 00:00:00 PDT Astable multivibrator gets hysteresis from positive-feedback stage http://www.edn.com/article/CA6702271.html?rssid=240 Add hysteresis through positive feedback. Thu, 22 Oct 2009 00:00:00 PDT High hot/cold factor boosts HB-LED efficacy http://www.edn.com/article/CA6699747.html?rssid=240 Philips’ new Luxeon Rebel HB LEDs (high-brightness light-emitting diodes) have a 0.93 hot/cold factor—the ratio of junction temperatures at 100 and 25°C. Thu, 08 Oct 2009 00:00:00 PDT Cadence links FPGA-pin allocation to PCB-layout tools http://www.edn.com/article/CA6699740.html?rssid=240 Co-design solution speeds designing FPGAs onto PCB systems. Thu, 08 Oct 2009 00:00:00 PDT Resistor compensates for instrumentation-amp gain drift http://www.edn.com/article/CA6699735.html?rssid=240 Temperature makes instrumentation amp's gain drift; a resistor corrects it. Thu, 08 Oct 2009 00:00:00 PDT Capacitance meter uses PLL for high accuracy http://www.edn.com/article/CA6699734.html?rssid=240 An improvement on an old design lets you measure capacitors from 10 pF to 1 µF. Thu, 08 Oct 2009 00:00:00 PDT Unused port adds a PWM/analog channel to a microcontroller http://www.edn.com/article/CA6699733.html?rssid=240 Take advantage of unused pins to generate a PWM signal and then filter it into analog. Thu, 08 Oct 2009 00:00:00 PDT