Category | May

Simple, Efficient, High-Brightness-LED Control

Posted on 01 May 2007

       LEDs are also less vulnerable to moisture ingression A variety of lighting applications are adopting HBLEDs (high-brightness light-emitting diodes), making them the fastest growing light source worldwide. Today’s advanced devices boast luminous efficacies in the 35-to-50-lm/W (lumens-per-Watt) range. Prototype devices emit more than 100 lm/W. By Peter Green, International Rectifier   Current [...]

Low QGD 200 to 250V Power Trench MOSFETs with Low tRR and QRR

Posted on 01 May 2007

      Synchronous Rectification, AC/DC, and DC/DC Applications are the focus We present a new Power TrenchTM trench MOSFET technology with optimized rDS(on), QGD and QRR. In SMPS power supply applications such as AC/DC, DC/DC, DC/AC, and synchronous rectification, these parameters are important in order to increase efficiency and power density. By Praveen Shenoy, [...]

The Effects of Turning off a Converter with Self-Driven Synchronous Rectifiers

Posted on 01 May 2007

      This type of circuit can never be used in a load-share configuration Synchronous rectification is one of the best ways to improve the efficiency of the low-voltage pulse width modulated (PWM) power converter. By John Bottrill, Senior Applications Engineer, Texas Instruments   The self-driven synchronous rectifier configuration has many advantages. It is [...]

Permanent-Magnet Synchronous Generators in Wind Energy Systems

Posted on 01 May 2007

       Reducing the losses by one-third for this type of generator Renewable energy sources already account for around 11.81% of today’s energy mix. The most successful of these is wind energy, occupying top place and delivering 5.7% of power consumption with an output of over 30 billion kilowatts in 20062. The technology has [...]

Polycarbonate Capacitors Yesterday, Today and Tomorrow

Posted on 01 May 2007

      They are a strong candidate for applications requiring a long projected life With a strong market need for high precision, high temperature, high reliability and long life film capacitors, a viable business still exists to produce the industry accepted Polycarbonate film. Military grade capacitors are especially in high demand. However, many producers [...]

Interview on Power Device Technology

Posted on 01 May 2007

       with Alex Lidow, CEO, International Rectifier By Bodo Arlt, Editor BPSD   Bodo Arlt: What end markets will drive IR for power management technology? Alex Lidow: IR’s key focus remains on areas where we can bring the greatest power-savings benefit. These are computing, communication, appliances, lighting, and motion control. Bodo Arlt: What [...]

Smart Power Chip Tuning

Posted on 01 May 2007

    Next Generation of Highly-Integrated IGBT Gate Drivers The SCALE-2 chipset helps designers to optimize switching performance, reliability and scalability as well as application flexibility and time-to-market. It is specifically optimized to fit various IGBTs and applications ranging from 150A to 3600A and 1200V to 3300V but is also preconfigured to allow application-specific customization. [...]

Thermal Paste Spread and Ready for Use

Posted on 01 May 2007

      New technical and logistics service Semikron, specialist in power module manufacturing and processing, has increased its portfolio of technical and logistics services to include the application of thermal paste to power modules. The introduction of this new service sets Semikron apart from other power semiconductor manufacturers. By Dr. Michaela Strube, Manager Service [...]

From the LAMP to LEDs

Posted on 01 May 2007

       So power supply changes ROAL Electronics is focusing also on the wide Solid State Lighting (SSL) Technology applications using High Brightness LEDs By Giorgio Fusari, Freelance Editor and Fabio Luconi Eu, Field Application Engineer, Roal   In its various forms, the economic and energetic subject is nowadays extremely important for the future [...]

System Integrated Drive for Hybrid Traction in Automotive

Posted on 01 May 2007

       ECPE Demonstrator Programme The pre-competitive research in power electronic systems in ECPE is based on long-term research roadmaps, and has its focus on automotive and industrial power electronic systems. With ECPE it could be managed to jointly formulate research topics in a European industrial consortium of main players in power electronics By [...]