Batteries/Power Supplies http://machinedesign.com/taxonomy/term/8224/more en Four-Junction Solar Cell Boosts Efficiency to 45.7% http://machinedesign.com/batteriespower-supplies/four-junction-solar-cell-boosts-efficiency-457 <div class="node-body article-body">National Renewable Energy Laboratory designs multi-material high-efficiency solar cell</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/four-junction-solar-cell-boosts-efficiency-457" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/four-junction-solar-cell-boosts-efficiency-457#comments Batteries/Power Supplies News Wed, 21 Jan 2015 20:01:00 +0000 45611 at http://machinedesign.com <p>The multi-junction solar cell is comprised of four different materials that can absorb different wavelengths of sunlight to achieve high levels of efficiency.&nbsp;</p> Recycling Used Tires Into Battery Electrodes http://machinedesign.com/batteriespower-supplies/recycling-used-tires-battery-electrodes <div class="node-body article-body">Carbon black recycled from used car and truck tires could lead to better anodes for lithium-ion batteries if researchers at the Oak Ridge National Laboratory are successful. </div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/recycling-used-tires-battery-electrodes" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/recycling-used-tires-battery-electrodes#comments Batteries/Power Supplies Materials Fri, 26 Sep 2014 14:52:00 +0000 41001 at http://machinedesign.com Power Supply, Battery Charger Combo http://machinedesign.com/batteriespower-supplies/power-supply-battery-charger-combo <div class="node-body article-body"><p><img alt="" src="/site-files/machinedesign.com/files/uploads/2014/05/TRUMPower-TMPC-650U-Power-Sup.gif" style="width: 300px; height: 122px; margin: 5px; float: right;" />The TMPC-650U, 650-W ATX power supply comes with a built-in 24-V battery charger and is approved for medical use. A single 24-V or two 12-V lead-acid batteries in series can be connected to be serve as an interruptible power source without affecting the overall maximum output power.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/power-supply-battery-charger-combo" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/power-supply-battery-charger-combo#comments Batteries/Power Supplies Thu, 22 May 2014 21:26:00 +0000 37701 at http://machinedesign.com Long-range underwater drone uses little fuel http://machinedesign.com/batteriespower-supplies/long-range-underwater-drone-uses-little-fuel <div class="node-body article-body">The Slocum Glider, an unmanned submarine from Teledyne Webb Research, Falmouth, Mass., takes a different approach to moving through the water. Onboard sensors collect data on the ocean or search for enemy subs or mines. Researchers and engineers are free to design any type of sensor packages for the drone (as long as it fits in the 7-liter payload bay.) So far, sensors have included acoustic probes, hydrophones, optical attenuation detectors, and spectrophotometers. </div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/long-range-underwater-drone-uses-little-fuel" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/long-range-underwater-drone-uses-little-fuel#comments Batteries/Power Supplies Sensors Wed, 02 Apr 2014 13:34:00 +0000 36131 at http://machinedesign.com Tiny battery lets researchers track salmon http://machinedesign.com/energy/tiny-battery-lets-researchers-track-salmon <div class="node-body article-body"><p><strong><img alt="" src="/site-files/machinedesign.com/files/uploads/2014/03/Battery-tiny.jpg" style="width: 400px; height: 321px; margin: 5px; float: right;" title="The microbattery, which will be injected into salmon to track their movements, sits amid grains of rice." />Army Corps of Engineers</strong>&rsquo; researchers in Washington Sate have been surgically implanting battery-powered transmitters into salmon to track and monitor their moments through rivers and the ocean. But those batteries were too big and weak to meet some of the researchers&rsquo; goals.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/energy/tiny-battery-lets-researchers-track-salmon" target="_blank">read more</a></p> http://machinedesign.com/energy/tiny-battery-lets-researchers-track-salmon#comments Batteries/Power Supplies Energy Tue, 25 Mar 2014 16:23:00 +0000 35841 at http://machinedesign.com Harvesting energy for wireless sensors http://machinedesign.com/batteriespower-supplies/harvesting-energy-wireless-sensors <div class="field-byline"> Tony armstrong, Director of Product Marketing | Linear Technology Corp. | Edited by Stephen Mraz </div> <div class="field-deck"> Energy harvesters often use intermittent sources of ambient energy. That makes batteries and backup power critical. </div> <div class="node-body article-body">Now some engineers are following physicist Richard Feynman’s advice and thinking small. They are using tiny solar panels and thermoelectric generators to glean power from seemingly insignificant temperature differences, piezoelectric elements that convert small mechanical vibrations into power, and galvanics that only need moisture to create electricity.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/harvesting-energy-wireless-sensors" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/harvesting-energy-wireless-sensors#comments Batteries/Power Supplies Sensors Tue, 25 Mar 2014 13:49:00 +0000 35851 at http://machinedesign.com The difference between ac electrical power and ac electrical energy http://machinedesign.com/batteriespower-supplies/difference-between-ac-electrical-power-and-ac-electrical-energy <div class="node-body article-body">Calculations of power and energy are relatively straightforward when the subject is strictly dc circuits. The situation is more complex in the ac world, however. Here are the basics of watts and watt-hours.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/difference-between-ac-electrical-power-and-ac-electrical-energy" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/difference-between-ac-electrical-power-and-ac-electrical-energy#comments Batteries/Power Supplies Fri, 03 Jan 2014 20:39:00 +0000 32981 at http://machinedesign.com 9-V battery straps http://machinedesign.com/batteriespower-supplies/9-v-battery-straps <div class="node-body article-body"><p> <img alt="" src="/site-files/machinedesign.com/files/uploads/2013/10/Keystone-DG-9V-Strap.gif" style="width: 300px; height: 300px; margin: 5px; float: right;" />Two series of prewired 9-V battery straps accommodate 9-V alkaline and lithium-Ion batteries.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/9-v-battery-straps" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/9-v-battery-straps#comments Batteries/Power Supplies Mon, 28 Oct 2013 20:18:00 +0000 31551 at http://machinedesign.com Generator works without high-power electronics http://machinedesign.com/batteriespower-supplies/generator-works-without-high-power-electronics <div class="node-body article-body"><p> A researcher in Russia thinks he has a way of generating power from wind turbines and other rotating devices that is super-efficient thanks to the elimination of any intervening power conversion electronics.</p> <p> The basic idea, as described by Sergey Gandzha of South Urals State University, is to adjust the output of a generator by adding to or subtracting magnetic flux. In his scheme, permanent magnets generate most of the flux. Smaller electromagnets are then controlled in such a way as to add or subtract from the PM flux to get the kind of output desired.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/generator-works-without-high-power-electronics" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/generator-works-without-high-power-electronics#comments Batteries/Power Supplies Thu, 24 Oct 2013 19:00:00 +0000 31451 at http://machinedesign.com A “Smart” Set of Stack Lights http://machinedesign.com/batteriespower-supplies/smart-set-stack-lights <div class="node-body article-body"><p> <img alt="" src="/site-files/machinedesign.com/files/uploads/2013/06/20131010-BaluffSmartLight.jpg" style="width: 335px; height: 619px; margin: 5px; float: right;" />The Smart Light from <a href="http://www.balluff.com" target="_blank">Balluff</a>, Florence, Ky., connects to practically any industrial network via IO-Link, an open and standard communication protocol. This lets the light display a wide range of information such as machine speed, throughput, position feedback, feeder-bowl level, or tank level.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/batteriespower-supplies/smart-set-stack-lights" target="_blank">read more</a></p> http://machinedesign.com/batteriespower-supplies/smart-set-stack-lights#comments Batteries/Power Supplies Fri, 27 Sep 2013 12:53:00 +0000 30651 at http://machinedesign.com