Category | Bodo’s Power

The Power Supply Industry – What’s Happening?

Posted on 28 November 2014

      The power supply industry is in the middle of a period of change. New opportunities are growing quickly whilst established markets falter. Because of this, the global market for AC-DC and DC-DC power supplies is set for healthy expansion from this year until at least 2017; revenue during these three years is [...]

The Nichols Chart - the Practical Tool for Design and Test

Posted on 26 November 2014

      Stability of feedback amplifiers and control systems like SMPS are targeted Comprehensive articles and books about feedback loop design and test abound, Bode Plots and Nyquist Diagrams, both highly impractical, are discussed at great length and recommended, while the superior Nichols Chart is hardly ever mentioned. By Dr.- Ing. Artur Seibt The [...]

InDUR Nonlinear and SiFe – Special AC Filter and DC Power Inductors

Posted on 24 November 2014

      They are based on State-of-the-Art Powder Materials and Silicon Iron Steel By Tobias Stolzke, Alexander Stadler and Christof Gulden, STS Spezial-Transformatoren Stockach GmbH & Co.KG, Am Krottenbühl 1, 78333 Stockach, Germany In many power electronics topologies a certain drop of the choke’s inductance can be accepted at higher current levels which offers [...]

The eGaN FET Supply Chain

Posted on 21 November 2014

      By Alex Lidow Ph.D.; Efficient Power Conversation KEY TAKE AWAYS GaN technology is compatible with low-cost silicon integrated circuit infrastructure already in place, allowing GaN technology to leverage billions of dollars of underutilized semiconductor supply chain. eGaN FETs eliminate one standard element in the semiconductor supply chain – the external plastic package. [...]

Protection Components for LED Lighting Systems

Posted on 19 November 2014

      All-round ESD and heat protection LED lighting systems require high-performance ESD and overtemperature protection if they are to live up to their potential in terms of lifetime, low maintenance costs and overall reliability. EPCOS protection components provide effective and cost-efficient protection for the LED arrays, their power supplies and control circuits. By [...]

Bond Buffer – Increase Power Density and Lifetime without Changing the System

Posted on 18 November 2014

      The increasingly ambitious requirements of the automobile and renewable energy markets demand that power modules must increase in both power density and lifetime. State-of-the-art module concepts have reached their limitations in terms of power density, current carrying capability and reliability. Connection technologies for the chips are a bottleneck for their performance. By [...]

Optimising the Quasi Resonant Flyback Transformer

Posted on 14 November 2014

      Most of the Isolated Offline Power Supplies less than 100W are flybacks. These converters have many advantages over other topologies. It is the least expensive isolated topology because it uses the fewest number of components. The transformer behaves as a coupled inductor, which stores the energy in the gap. This eliminates the [...]

High Power Density Dual - nHPD2 Packaging Generation

Posted on 12 November 2014

      A new standard for High Voltage IGBTs The challenges of continuous improvement, for ever higher efficiency, reach far and wide within the Power Semiconductor industry – the engine of the modern world striving to achieve a more sustainable future. Semiconductor manufacturers and system designers alike tirelessly challenge the force that is the [...]

Increasing Power Density in DC-DC Converters with Power Block Duals

Posted on 10 November 2014

      Following the successful introduction of the “industry-standard” family of power block PQFN 5x6mm dual MOSFETs, International Rectifier has recently introduced two new packages targeted at increasing the power density in non-isolated dc-dc converter applications. The PQFN 6x6mm package with exposed top enables additional heat transfer out of the package leading to increased [...]

Where is the Journey Headed?

Posted on 07 November 2014

      The Future of High-Power Semiconductors Power modules have proven to be the driving force behind the rapid development in the area of power electronic systems technology, particularly in terms of energy savings, control dynamics, noise reduction as well as weight and volume reduction. Power semiconductors are primarily used to control the energy [...]