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) Mon, 09 Nov 2009 06:05:14 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 In search of a better DRAM: evolving to floating bodies http://www.edn.com/article/CA6694953.html?rssid=240 Widely investigated floating-body memories appear to be compelling replacements for conventional DRAMs. A new floating-body memory uses the intrinsic bipolar transistor to store significantly greater charge. Thu, 17 Sep 2009 00:00:00 PDT Connect two buttons with just two wires http://www.edn.com/article/CA6694950.html?rssid=240 Use diodes to steer current in the right direction. Thu, 17 Sep 2009 00:00:00 PDT Resistive DAC and op amp form hybrid divider http://www.edn.com/article/CA6694949.html?rssid=240 A programmable resistance is all you need in a feedback loop. Thu, 17 Sep 2009 00:00:00 PDT Missing pulse detects position or produces a delay http://www.edn.com/article/CA6694947.html?rssid=240 A simple logic circuit counts pulses and blocks one of every 36. Thu, 17 Sep 2009 00:00:00 PDT Thermal design guidelines for solid-state lighting applications using LEDs http://www.edn.com/article/CA6695956.html?rssid=240 Here are six critical steps necessary to developing a successful, cost-effective thermal design for an LED application. Two families of LED applications have been used to illustrate many of the design choices that are open to the thermal designer to satisfy these application issues. Fri, 11 Sep 2009 00:00:00 PDT