<allow-access-from domain="cde.cerosmedia.com" /><allow-access-from domain="admin.cerosmedia.com" /><allow-access-from domain="test.cerosdevelopment.com" />EDN Europe - Design Ideashttp://www.edn-europe.comEDN Europe - Design Ideasen-USCopyright 2010 Reed Business Information, a division of Reed Elsevier Inc. All rights reserved.Tue, 16 Mar 2010 23:35:54 +0800High brightness LED lighting reference designhttp://www.edn-europe.com/highbrightnessledlightingreferencedesign+article+3132+Europe.htmlFairchild Semiconductor has unveiled a reference design that enables designers to implement an AC-input LED lighting system without a secondary-side ....http://www.edn-europe.com/highbrightnessledlightingreferencedesign+article+3132+Europe.htmlThu, 4 Jun 2009 00:00:00 +0800Microcontroller controls analog phase shifterhttp://www.edn-europe.com/microcontrollercontrolsanalogphaseshifter+article+2255+Europe.html Phase shifters find use in a variety of circuits, but variation in amplifier and capacitance tolerances usually makes it difficult to control the exact phase shift that precise ....http://www.edn-europe.com/microcontrollercontrolsanalogphaseshifter+article+2255+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800Improved laser-diode-clamp circuit protects against overvoltageshttp://www.edn-europe.com/improvedlaserdiodeclampcircuitprotectsagainstovervoltages+article+2254+Europe.htmlExpensive semiconductor laser diodes have no tolerance for fast voltage or current transients. To minimize the risk of damage, a standard JFET-clamp circuit shorts the laser ....http://www.edn-europe.com/improvedlaserdiodeclampcircuitprotectsagainstovervoltages+article+2254+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800Hot-swap circuit allows two computers to monitor an RS-232 channelhttp://www.edn-europe.com/hotswapcircuitallowstwocomputerstomonitoranrs232channel+article+2253+Europe.html The hot-swap serial-interface circuit in Figure 1 allows two computers to see all of the communication between each computer ....http://www.edn-europe.com/hotswapcircuitallowstwocomputerstomonitoranrs232channel+article+2253+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800RS-232-to-TTL converter tests UARTs with a PChttp://www.edn-europe.com/rs232tottlconvertertestsuartswithapc+article+2252+Europe.htmlWhen using a computer for debugging or testing UARTs you often need an RS232-to-TTL adapter. But most of these adapters require an external power-supply adapter to power up ....http://www.edn-europe.com/rs232tottlconvertertestsuartswithapc+article+2252+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800Programmable current source requires no power supplyhttp://www.edn-europe.com/programmablecurrentsourcerequiresnopowersupply+article+2251+Europe.html Engineering labs are usually equipped with various power supplies, voltmeters, function generators, and oscilloscopes. One piece of equipment missing from many such labs, ....http://www.edn-europe.com/programmablecurrentsourcerequiresnopowersupply+article+2251+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800Capacitive touch switch uses CPLDhttp://www.edn-europe.com/capacitivetouchswitchusescpld+article+2250+Europe.html Capacitive touch switches work by measuring the change in capacitance of a PCB (printedcircuit- board) pattern depending on the placement of a user’s finger over a ....http://www.edn-europe.com/capacitivetouchswitchusescpld+article+2250+Europe.htmlTue, 1 Jul 2008 00:00:00 +0800Dual flip-flop forms simple delayed-pulse generatorhttp://www.edn-europe.com/dualflipflopformssimpledelayedpulsegenerator+article+2199+Europe.htmlSome applications require clock-timing adjustments, such as generating precision clocks for time-interleaved ADCs, or delay adjustments in a variety of precisiontiming and ....http://www.edn-europe.com/dualflipflopformssimpledelayedpulsegenerator+article+2199+Europe.htmlSun, 1 Jun 2008 00:00:00 +0800Transmission lines simulate digital filters in PSpicehttp://www.edn-europe.com/transmissionlinessimulatedigitalfiltersinpspice+article+2198+Europe.htmlDesigners use PSpice mainly to simulate analog circuits. However, you can also simulate digital filters with it. The main components in a digital filter are delay elements, adders, ....http://www.edn-europe.com/transmissionlinessimulatedigitalfiltersinpspice+article+2198+Europe.htmlSun, 1 Jun 2008 00:00:00 +0800Use thermoelectric coolers with real-world heat sinkshttp://www.edn-europe.com/usethermoelectriccoolerswithrealworldheatsinks+article+2197+Europe.htmlPeltier devices, also known as solid-state refrigerators, or TECs (thermoelectric coolers), actively cool temperature-sensitive electronic components, such as optical detectors ....http://www.edn-europe.com/usethermoelectriccoolerswithrealworldheatsinks+article+2197+Europe.htmlSun, 1 Jun 2008 00:00:00 +0800