Category | April

1200V Generation 8 IGBT for Low Frequency Industrial Motor Drive Applications

Posted on 04 April 2013

      With the ever increasing demand on energy, governments are now facing the problem of supplying electricity whilst trying to minimize the environmental impacts of pollution. By Wibawa Chou, Llewellyn Vaughan-Edmunds and Andrea Gorgerino, International Rectifier Corporation, El Segundo, CA One of the largest utilizers of electricity are electrical motor drives, which consume [...]

Improving the Regulation of Multiple Output Flyback Converters

Posted on 04 April 2013

      The flyback topology is a good choice for multiple output applications, where several semi-stabilized outputs are required from a single supply. At low power levels the flyback is very attractive in that it is typically the least expensive isolated topology because it uses the fewest number of components. By Florian Mueller, Texas [...]

Energy Measurement and Security for the Smart Grid - Too Long Overlooked

Posted on 04 April 2013

      As smart meter rollouts continue globally, consumers, design engineers, utilities discuss how the smart grid will transform the entire energy industry. Smart meters already allow utilities to save money by accessing meter data without sending someone to physically read the meter. Utilities, factories, and consumers are now pushing for more conservation and [...]

A Formula for Higher Power Density: Inside the Power Clip 33 Dual MOSFET

Posted on 04 April 2013

      Several things, including the choice of silicon, IC placement, and power loop configuration led to the development of a dual power MOSET that delivers significantly higher power density in a smaller footprint. By SG Yoon and Arthur Black, Fairchild Semiconductor In power supplies, finding a way to increase power density - that [...]

A Micro-Packaged Linear Current Sensor IC

Posted on 04 April 2013

      Primary conductor resistance of only 0.6 mΩ reduces power dissipation The linear current sensor IC, the ACS711, is housed in a 0.75 mm thick low profile package measuring only 3 mm × 3 mm! It is designed for low-side and less than 100 V sensing applications requiring 5A to 30 A continuous [...]

Thyristors for High Power Applications

Posted on 04 April 2013

      Modern power electronics industry is developing in a lot of directions. Despite the rapid development of fully controlled power semiconductor switches (IGBT, IGCT) usage of high power thyristors with extra load power in many applications is still technically legitimate. By A.A. Pisarev, A.A. Chernikov, A.V. Stavtsev, A.M. Surma, Proton Electrotex Recently interest [...]

Measuring the Dynamic Conduction of Switching Devices

Posted on 04 April 2013

      This helps understanding where losses in power devices occur The real conduction voltage can also be used to determine the junction temperature of transistors and SiC diodes. Modern switching devices as diodes, MOSFETS, IGBTs and GaN transistors have gener-ally a small conduction voltage compared to the blocking voltage. For example, a 400 [...]

Reactive or Resistive: Optimizing Testing for Offshore Power Generation Supplies

Posted on 04 April 2013

      Offshore independent power generation installations often involve complex systems comprising gas turbines, diesel generators, DC battery and UPS arrangements, which support platforms, rigs and floating production, storage and offloading (FPSO) vessels many hundreds of miles offshore. Ensuring the availability of power for production, life support systems and in some cases propulsion is [...]

Why Don't We Charge it on the Road?

Posted on 04 April 2013

      London cabbies try out wireless charging Incompatible plug systems are a major obstacle for electromobility, and now the country which used to be famous for hotel rooms with at least three different kinds of power plugs at the wall is getting rid of the problem by attacking its root. Qualcomm initiated the [...]