Magnetics Business & Technology - Spring 2015 - (Page 24)

SOFTWARE & DESIGN CST Releases CST EMC Studio Computer Simulation Technology (CST) has released CST EMC Studio, a product for electromagnetic compatibility (EMC) and electromagnetic interference (EMI) analysis. EMC is an important consideration in product design across a wide range of industries. CST develops electromagnetic simulation solutions that help identify potential compliance issues before the actual prototype is built, and to analyze products that fail compliance testing. Engineers can study effects such as radiated or conducted emissions in consumer electronics devices, or susceptibility to electrostatic discharge, lightning strike and high-intensity radiated fields (HIRF). With CST EMC Studio, CST directly addresses the unique requirements of this market. CST EMC Studio contains a toolkit of proven solver technology for the study of EMC effects, with general purpose 3D modules for time and frequency domain simulation alongside more specialized solvers. In particular, it includes the 3D transmission line matrix (TLM) method solver, which implements technology that simplifies numerical EMC analysis, such as compact models and octree meshing. The bidirectional cable/field simulation enables more realistic modeling of noise propagation and radiation over cables. True transient EM/circuit helps analyze the effect of nonlinear circuitry on EMC performance. Radiated and conducted emissions from PCBs can play a critical role in EMC performance of devices. For analyzing printed electronics, the powerful import functionality and the EMC rule checker are of interest. EDA import formats supported include those used in Cadence Allegro, Mentor Graphics Xpedition, Zuken CR8000 and ODB++ databases. The EMC rule checker allows the detection of potential problems on PCBs that can be then analyzed in 3D by the full wave solvers. Smart Tool to Select Discontinuous Mode Flyback Transformers Released to Public For discontinuous mode, flyback, SMPS designs, a online tool has been launched by Wurth Electronics Midcom, Inc. Entering as little information as input voltage range, switching frequency, output voltages and current, the Smart Transformer Selector, or STS, will return a list of prequalified, off-the-shelf transformers. Taking the tedium out of the task, the STS searches Wurth Eletronics Midcom's database of hundreds of SMPS transformers designed for discontinuous mode, flyback operation. The STS uses power supply parameters and searches the database for parts that will not saturate, will provide the proper output voltages, will not over stress your switch, so on and so forth. "Essentially the STS 24 Magnetics Business & Technology * Spring 2015 looks at each transformer one at a time and does a reverse design to make sure that it will function properly under the operating conditions that you specify," said Dean Huumala, product marketing and development manager for Wurth Electronics Micom, Inc. The search results are returned in a table that lists many of the typical transformer parameters, such as inductance, turns ratio and saturation current along, with mechanical and safety parameters for the parts. Full specifications of the part are available for immediate download in pdf format right from the table. The STS finds all suitable transformers, even those that were not designed specifically with the given application in mind. While the STS is designed for a novice, it can also be used by the experienced SMPS designer who knows just what they want. An advanced search feature allows those who wish to specify the inductance, saturation current and/or turns ratio themselves. The other basic parameters still must be entered as the tool needs to verify the design. Specifying duty cycle, MOSFET and diode rating, as well as the controller used, are all options that can be used by the advanced user. The STS will take all of these requirements into account when searching for a transformer. For all users, a limited list of controllers from the IC manufacturers is provided for selection. Specifying the controller will automatically populate the duty cycle, MOSFET parameters and the UVLO-LO and UVLO-HI parameters as they pertain to the controller. One can still override the auto settings if they wish as in the case of an external switch being chosen rather than using the one internal to the controller. As an added benefit to customers, the STS lists all parts that are available off the shelf. Customers eliminate a standard wait time of up to eight weeks for transformers. There are no minimum order quantities on the products listed in the Smart Transformer Selector. Most of the parts found in the STS are stocked at Digikey or Mouser, and all are stocked directly at Wurth Electronics Midcom, Inc. Remcom Releases Projected Capacitive Touch Capability in XFdtd Electrostatic Solver Remcom has announced Projected Capacitive Touch Capability in XFdtd 3D Electromagnetic Simulation Software. The capability will be available in the next version of the software, currently scheduled for an early 2015 release. Projected Capacitive Touch Capability is critical for designing electronics with Touchscreen Panel (TSP) technology, including touchscreens for mobile devices and desktop computer monitors, touchpads, proximity sensors and more. XFdtd's electrostatic solver will compute the matrix of selfand mutual-capacitance between any number of conductors in a model, which may be of almost any arbitrary shape and complexity. Users can generate Maxwell and SPICE Capacitance Matrix results and view them via XFdtd's Results Browser. Using XFdtd's Poseable Hands, many configurations of typical touchscreen usage can be evaluated. www.MagneticsMagazine.com http://www.MagneticsMagazine.com

Table of Contents for the Digital Edition of Magnetics Business & Technology - Spring 2015

Editor's Choice
First-Order-Reversal-Curve Analysis of Multi-Phase Ferrite Magnets
Magnetics Design Tool for Power Applications
Magnet Inspection Tool with High Magnetic and Mechanic Accuracy
Research & Development
Electromagnetics
Software & Design
Industry News
Marketplace / Advertising Index
Spontaneous Thoughts: The Patent Challenge

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