Category | April

Interview on Power Management Technology

Posted on 01 April 2007

       with Donald E. Paulus, Vice President and General Manager, Power Products, Linear Technology By Bodo Arlt, Editor BPSD   Bodo Arlt: What end markets will drive Power Management technology? Don Paulus: Linear Technology is engaged in a broad range of end markets, including networking and communications infrastructure, computing, industrial/medical, automotive, avionics and [...]

Simple Technique for LED Driver Applications

Posted on 01 April 2007

       Minimizing input supply ripple current LED applications in the consumer market have really taken off like a wild mushroom. In the past they were very popular in cell phone applications, but now you find them in home lighting applications, airplane cabin lights, automotive headlights, MP3 players, etc. By Ajmal Godil, Intersil   [...]

New Ferrite Material Improves Split-Core Current Transformers for Power Measurement

Posted on 01 April 2007

      A few years ago, engineers designing for the 50/60 Hz domain were dreaming about “magic” materials for magnetic cores, which would provide the best performance at the best price. Unfortunately the available technologies offered either a good performance for a high price or much poorer performance for a low price. By Pierre [...]

Improving the Thermal Cycling Capability of Cu Baseplate Modules

Posted on 01 April 2007

      Homogeneous solder layer even exceeds the impact of the solder material Due to power losses as well as alternating external operating conditions in IGBT power modules thermomechanical strain arises from the different coefficients of thermal expansion. Especially for the solder layers of Cu baseplates this cyclic straining leads to the formation and [...]

Overcoming Challenges in Design

Posted on 01 April 2007

      HoStep-Down Regulator Applications with ≥ 40V Input Voltage Switching regulators are commonly used to step-down a higher level, unregulated input voltage to a regulated output voltage. In applications requiring DC-DC conversion from a relatively high input voltage, a switching regulator will dramatically improve conversion efficiency relative to linear regulator alternatives. By Robert [...]

Single Port PoE Controller Simplifies PSE Design

Posted on 01 April 2007

       Power over Ethernet (PoE) has been enjoying rapid growth in popularity. PoE provides the user with numerous benefits including fast and convenient installation, reduced overall power consumption, fewer cable runs, lower installation costs and a unified, worldwide power standard based on the IEEE 802.3af specification. By Alison Smith, Product Marketing Manager, Mixed [...]

Smart Pumping: Motion-Control Advancements Aid Intelligent-Pumping Applications

Posted on 01 April 2007

      Sinusoidal current control ensures quiet operation The latest motion-control semiconductor technologies help designers rapidly implement intelligent-pump controls. By Aengus Murray, International Rectifier   Variable-speed intelligent pumps are rapidly gaining favour in applications as diverse as chemical processing and building services. The growing demand for these pumps is largely due to efficiency improvements [...]