Category | June

Interview on International Patent Subjects

Posted on 01 June 2008

      with James Babineau, Patent Lawyer at Fish & Richardson By Bodo Arlt, Editor BP   Bodo Arlt: Where do we see differentiation between Europe and America in patent law? James Babineau: One very significant difference is that the US grants a patent to the first person to invent, not necessarily to the [...]

Power Supply Selection Criteria for N+M Redundant Applications

Posted on 01 June 2008

      Redundancy is generally accomplished by paralleling This article provides an overview of the concepts required to enable successful paralleling of AC-DC front end power supplies. Although much of this discussion can be applied to applications which require battery back-up, such as -48V telecom central-office equipment, AC-DC front ends do not typically include [...]

Small Footprint also Occupies Less Board Space

Posted on 01 June 2008

      New power package together with high frequency switching meets efficiency and EMI specs while driving down solution cost By Andrew Smith, Power Integrations Inc   Switching power supplies are now manufactured around the world in huge numbers to be used in wall adapters and internal power supplies for all kinds of equipment. [...]

USB On-The-Go

Posted on 01 June 2008

    USB for portable systems The ever increasing number of battery powered portable devices in use, and performance driven demand for a high-speed data interface resulted in development and consequent wide adoption of the point-to-point USB protocol known as USB On-The-Go. By Thomas Schaeffner, Systems Engineer Power Management Units, Texas Instruments   The initial [...]

Reliability of PressFIT Connections

Posted on 01 June 2008

      PressFIT is a force fitting easy connection technology, which provides a higher reliability to meet the trends to higher temperatures and new applications for power semiconductor modules. This technology is well-known as a highly reliable connection for several years in the industry, in telecommunications and in automotive designs. Infineon modify common reliability [...]

Clamp Needs to be Redesigned after Inspection with Fast and Accurate Sensor Film

Posted on 01 June 2008

      Pressurex® Ideal for Quality Control and Machine Component Inspection   Pressurex, a thin flexible film from Sensor Products Inc., is a versatile NDT tool for quality control and machine component inspection. Its ability to easily and rapidly show inconsistencies in surface pressure between mating or contacting surfaces has lowered scrap rate and [...]

Transfer Mold IPMs

Posted on 01 June 2008

      50A and 75A/600V devices with heat dissipating insulation sheet This article presents a large-scale Dual In-line Package Intelligent Power Module (DIP-IPM Ver.4 series) with ratings of 50A and 75A/600V developed by Mitsubishi Electric for home appliances and package air conditioner. 75A/600V large-scale DIP-IPM Ver.4 has been achieved by development of 5th generation [...]