Category | Application and Design

Three Stability Assessment Methods Every Engineer Should Know About

Posted on 09 July 2014

      Many engineers are familiar with the Bode plot as an effective stability assessment method. However, some authors suggest and even teach that the Bode plot is the only method needed. This article shows why this thinking is short-sighted. A single, low cost instrument that can produce Bode plots, as well as two [...]

Sensor Module Ensures Optimum Battery Utilisation in Heavy-Duty Vehicles, called omniMoves

Posted on 08 July 2014

      Precise battery diagnostics makes maneuvering large, heavy-duty loads easier Isabellenhütte’s shunt-based IVT Modular sensor module measures the basic battery components’ current and voltage with an error rate of less than 0.1 per cent. This exceptional degree of accuracy provides for consistent power control and efficient utilisation, especially for high-capacity battery systems. This [...]

Efficient Microcontroller Peripheral Modeling with PLECS

Posted on 01 July 2014

      Microcontrollers play an integral part in controlling modern power electronic systems. Often, for system level simulations, the peripheral modules are simplified to improve overall simulation efficiency. In this study, efficient modeling of high fidelity peripheral models is discussed and the advantages of simulating power electronic systems with these models have been investigated [...]

Precise Evaluation of Input, Output, and Reverse Transfer Capacitances of Power Devices

Posted on 30 June 2014

      Increasing importance of capacitance measurement The switching frequency in power conversion circuits is increasing. This is primarily to reduce the size of passive components such as smoothing capacitors and reactors. Accurate characterization of device parameters affecting switching performance become more important as higher switching frequencies increase power circuit switching losses. By Hisao [...]

eFPGAsim: A Versatile Motor Drive and Power Electronic Test System

Posted on 13 June 2014

      Smart-grid and Electric hybrid-vehicle devices tests and validation made easy with the power of FPGAs This article presents a versatile test gig for controlled systems and devices such as electric hybrid vehicles (HEV) and smart grid controllers. At the core of this Hardware-In-the- Loop (HIL) test systems are a set of FPGA-based [...]

Efficient 3D Modeling Tool for Computation of Inductive Coupling Effects

Posted on 11 June 2014

      Nowadays 3D modeling to compute electromagnetic fields is widely disseminated. It is used to evaluate electrical properties of components, assemblies and whole systems. In most cases it is a very time consuming process. Scientists of the Fraunhofer IZM developed a new tool for magnetic coupling computation with an effort reduction of 80% [...]

eScooter is Gaining Speed

Posted on 10 June 2014

      The life of Swiss postmen in some rural areas may just become a bit easier: In a pilot project they will be equipped with eScooters. Complex power electronics is required to drive the electrically powered two-wheelers and intelligent thermal management ensures reliable operation. This is where HSMtec enters the picture. Author: Johann [...]

Easy Conversion

Posted on 09 June 2014

      A look at how to implement an analogue-to-digital conversion in a low bandwidth application By Mark Pallones, Kristine Angelica Sumague and Mike Gomez, Microchip Implementing an analogue-to-digital conversion in a circuit is one of the most common tasks facing designers and one that can be done in various ways. But for many [...]

Fast Compensator Design and Optimization for Power Converters based on Graphical Visualization

Posted on 30 May 2014

      Shaping the control-to-output frequency response is a widely used technique for compensator design. The most important factors of the design process are phase margin (PM) and cross-over frequency (fc). Are all combinations of phase margin and cross-over frequency feasible? Can a high cross-over frequency and a phase margin of 45º always be [...]

Rapidly Design, Prototype, and Test your DSP Controller with PSIM and Typhoon HIL

Posted on 28 May 2014

      By Ivan Celanovic and Nikola Celanovic Typhoon HIL Inc., USA; Hua Jin, Powersim, Inc, USA and Simone Castellan, University of Trieste, Italy The growing complexity of power electronics (PE) systems, intensifying competition, rapidly shrinking product development cycles, and exploding test and quality assurance costs are forcing power electronics industry to accelerate the [...]