Category | July

600V Trench IGBTs

Posted on 01 July 2008

      Optimized for 20 kHz Operation The new generation of 600 Volt IGBTs is targeted for DC-to-AC inverter applications. These new devices use Depletion Stop Trench technology to reduce both conduction and switching losses in high frequency switching applications such as UPS and solar inverters enabling higher efficiency power conversion. These devices have [...]

Renewable Energy Application Efficiency

Posted on 01 July 2008

      A new horizon for SMPS Developed alongside such other power MOS devices as the IGBT, power MOSFETs have filled niches for many applications. In lower voltage applications, they offer high efficiency for power supplies and DC-to-DC converters, and provide high stability in servo and motor control designs. By Dean Henderson, Segment Marketing [...]

Digital Power on the Move

Posted on 01 July 2008

      A Panoramic View of Applications and Challenges When digital power first emerged as a topic of debate in the early 2000s, most power supply designers cast their doubts at the thought of replacing analog PWM controllers with a DSP based digital power supply controller. By Steve Mappus, Systems Engineer, Fairchild Semiconductor, High [...]

Digital Power

Posted on 01 July 2008

      Hope or Hype? By Dr.– Ing. Artur Seibt, Vienna   Where it makes sense Before the term "Digital Power" was ever coined, it has been used since decades whenever it made sense, i.e. in large power supplies, especially in those destined for complex installations. However, the term DP as it is used [...]

Flexible, Accurate & Efficient Power Solutions for LED Backlighting Applications

Posted on 01 July 2008

      V•I Chips enable high-current, low-voltage distribution inside displays Traditionally, large size LCDs (liquid crystal displays) used CCFLs (cold cathode fluorescent lamps) as the source of backlight to achieve a uniform white light. Using LEDs (light-emitting diodes) as backlight is gaining share at key manufacturers as LED outperforms CCFL in size, energy efficiency, [...]

6500V SPT+ HiPak Modules

Posted on 01 July 2008

      Higher power and higher SOA performance The next generation 6500V HiPak IGBT modules employing the newly developed SPT+ IGBT and diode chips is presented. The SPT+ IGBT range achieves significantly lower overall losses while exhibiting higher safe-operating area (SOA) and the same desirable electrical characteristics as the successful SPT generation. By A. [...]

Super Capacitor Reference Design

Posted on 01 July 2008

      LED flash power issues for high resolution camera phones solved Cell phones are becoming the ultimate converged consumer portable appliance. Capabilities include capturing high-quality photography, Wi-Fi web access, crisp audio and extended talk time along with longer battery life. A major design challenge is now emerging. A phone battery still struggles to [...]