Category | May

New Generation of GaN Based Power Stage Products

Posted on 10 July 2012

      This generation heralds a era in high density and highly efficient power Conversion With the introduction of commercial HEXFET® power MOSFETs more than three decades ago, International Rectifier started a revolution in switch-mode power supplies (SMPS). Now, 30 plus years later, as silicon matures, the demand from industry for smaller and more [...]

Easy Parallel Connection of IGBT Modules at the Next SCALE Level

Posted on 10 July 2012

      A Unified Direct Paralleling Approach Applied to IGBT Voltage Classes 1.2 to 6.5kV The SCALE-2 implementation of high-voltage and high-power IGBT gate drivers offers competitive advantages such as a dramatically reduced component count, exceptional cost performance and wide application and topology diversity: from single-switch to parallel connection within multi-level converters for industry [...]

Enhancing an IGBT Module for High Temperature & High Current Operations

Posted on 10 July 2012

       A new generation of modules for demanding applications The ever increasing requirements on high-power IGBT modules to operate at higher power densities need a series of improvements on the total value chain. During the development phase a team of engineers from different expertises contributes to these improvements. This article explains four of [...]

Power Modules

Posted on 10 July 2012

      How to avoid errors when applying thermal paste The power electronics sector is continually striving to boost the reliability of power modules. The main focus of research work in this sector is on semiconductor chips, packaging technology and the DBC substrate. The weak point of heat-sink-mounted power modules, however, is the “gap” [...]

A New Class of Rogowski Coil Split-Core Current Transducers

Posted on 10 July 2012

      To guarantee stability in time and temperature, the RT series coil is moulded integrally into a PU resin The monitoring of electric power consumption has become a key element for managing electrical installations in industrial and commercial sectors, such as manufacturing facilities, data centres, food processing industries, retail outlets, hospitals or educational [...]

IPS Drivers Combine Highest Performance and Design Flexibility

Posted on 10 July 2012

       First-class performance can simply be achieved by software Using digitally controlled IGBT gate drivers opens the horizon to high reliability and less switch-on losses by changing the operation characteristics with software programming By Robert Hemmer, Pavel Kviz and Marita Wendt, InPower Systems GmbH   This article gives an overview of a new [...]

The Fundamentals of Flyback Power Supply Design

Posted on 10 July 2012

      The development of small, light, low cost, and highly efficient switching power supplies is one of the major contributors to the reduction in power consumed by modern electronic products and has enabled the introduction of ever tighter industry standards for efficiency and standby power consumption. By Sameer Kelkar, Staff Applications Engineer, Power [...]

High Efficiency, Low-Profile AC-DC Power Supply Design

Posted on 10 July 2012

      There may be more than one ideal solution By Steve Mappus, Principal Systems Engineer, Fairchild Semiconductor, Power Conversion America, PCIA, Bedford, NH   Maximizing efficiency in a low-profile form factor is a non-trivial challenge for even the most experienced power supply designers. Some examples of systems requiring low-profile power supply designs include: [...]

High-Efficiency Converter with PFC for LED Street Lighting at 48 V and 130 W

Posted on 10 July 2012

      The Symbiosis of active and passives IC reference design For an advanced PCB-design, developers want to make the right choice by knowing the application and the specific requirements. Next to the design assistance this is the most important reason for App-Notes issued by the IC makers. In this early stage, IC makers [...]

Ultra low latency HIL simulator for Power Electronics Applications

Posted on 10 July 2012

      Software testing moves from the laboratory floor to the office desk Digital simulation in power electronics (PE) is a standard tool of design but it has traditionally referred to "off-line" simulation in which simulation time on a PC may be orders of magnitude greater than the simulated events would be. For this [...]