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New Magnetics Designer Adds Sector Winding and FEA Features.


SAN PEDRO, Calif.--(BUSINESS WIRE)--March 2, 1999--
Product:          Magnetics Designer Version 4.0
Description:      Updated transformer and inductor design software
Compatibility:    Windows 9x, or Windows NT, 8 Meg RAM minimum
Price:            $1725, Price includes one year's maintenance
Features:         Ability to handle sector winding configurations for
                  high-voltage designs;
                  New "bobbin tab" allows user to see a
                  picture of the core and winding structure;
                  New FEA solution engine added; Expanded
                  winding screen; Support for silver and
                  aluminum wire types; Core database of more
                  than 7,000 cores.
Availability:     Immediate
Contact:          Alyse Rome -- Marketing Manager, Intusoft
                  310/833-0710; fax: 310/833-9658
                  Email: info@intusoft.com
                  Web: http://www.intusoft.com


Intusoft has released a new version of its popular transformer and inductor inductor, electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired value.  design program, Magnetics Designer.

The new version represents a significant breakthrough in terms of performance and new feature set. Major enhancements include the ability to handle sector winding configurations for high-voltage designs. A new "bobbin bobbin, implement on which thread is wound, used in sewing, spinning, weaving, and lace making. Sometimes the wooden spools of sewing thread are called bobbins.  tab" allows the user to see a picture of the core and winding structure.

New 2D Finite Element Analysis Finite element analysis (FEA) is a computer simulation technique used in engineering analysis. It uses a numerical technique called the finite element method (FEM). There are many finite element software packages, both free and proprietary.  (FEA (Finite Element Analysis) A mathematical technique for analyzing stress, which breaks down a physical structure into substructures called "finite elements." The finite elements and their interrelationships are converted into equation form and solved mathematically. ) algorithms produce magnetic field maps that describe the core flux behavior. The FEA solutions provide more accurate calculation of the core losses.

According to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 Intusoft Vice President Charles Hymowitz: "The fact that the program synthesizes the design using multi-parameter optimization and includes FEA accuracy makes it a very productive tool for power supply designers. The product is really unmatched at any price level."

An expanded winding screen gives the user more per winding information such as current density, winding weight, IR drop and copper loss. Silver and aluminum wire types are now supported. The core database contains more than 7,000 cores, and includes new "sanity" checks that help users enter the correct set of core geometry and material data. Toroid calculations have also been dramatically improved.

Magnetics Designer is a software program that designs and synthesizes all types of transformers and inductors. Typical design applications include high-frequency switching regulator transformers and output chokes for off-line full-wave and forward converters, 60 Hz single phase line transformers, AC inductors, planar magnetics, and 400 Hz aircraft transformers.

Virtually any single phase, layer or sector wound inductor or transformer, from 10 Hz to more than 5 MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. , can be synthesized with Magnetics Designer. Magnetics Designer is different than other FEA-based analysis tools. It actually selects the core geometry and synthesizes the winding structure for the user, making him or her dramatically more productive.

The user does not have to draw anything or specify any physical design characteristics other than the type of core family and material he or she wants to use.

Magnetics Designer produces a complete transformer or inductor design based upon electrical specifications including a winding sheet winding sheet
Noun

a sheet in which a dead person is wrapped before being buried
 report and a SPICE-compatible model with parasitics. A database with thousands of cores and a wide variety of materials and wire is included.

In addition, users can add their own cores, wire and material information using a supplied Excel(R) spreadsheet. Core vendors such as TDK TDK Türk Dil Kurumu (Turkish Language Council)
TDK The Dark Knights (gaming clan)
TDK Tokyo Denkikagaku Kogyo KK (TDK Electronics Co. Ltd.
, Magnetics, Philips, Thomson, Micrometals, Siemens, Kaschke, Ferrite fer·rite  
n.
1. Any of a group of nonmetallic, ceramiclike, usually ferromagnetic compounds of ferric oxide with other oxides, especially such a compound characterized by extremely high electrical resistivity and used in computer memory
 International, VAC (Volts Alternating Current) See volt and AC.  and Fair-Rite are represented. Users can use formvar, square or double square magnet wire Magnet wire is a copper or aluminum wire covered with thin insulation. It is used in the construction of transformers, inductors, motors, and electromagnets, among other applications. However, it is not magnetic itself. , Litz wire, pcb traces or foil.

Magnetics Designer selects the appropriate core, number of turns, and wire sizes to minimize the total power dissipation for a given temperature rise in the smallest possible core. Winding loss, skin effect, proximity effect Proximity effect may refer to:
  • Proximity effect (atomic physics)
  • Proximity effect (electromagnetism)
  • Proximity effect (electron beam lithography)
  • Proximity effect (audio)
  • Proximity effect (superconductivity)
  • Proximity Effect (comic)
, current density and flux distribution are all taken into account.

The program predicts magnetizing and leakage inductance Leakage inductance is that property of an electrical transformer that causes a winding to appear to have some self-inductance in series with the mutually-coupled transformer windings. , inter-winding capacitance, peak flux density flux density
n.
The rate of flow of fluid, particles, or energy per unit area.
, DC winding resistance, high-frequency AC resistance, copper loss (both AC and DC), core loss, weight, temperature rise, layer fill and window fill percentage.

Since the multi-parameter optimization algorithms are fast, the user can compare designs quickly and easily. The user can change more than 20 design parameters such as allowed temperature rise, allowed window fill, number of turns, wire gauge wire gauge
n.
1. A gauge for measuring the diameter of wire, usually consisting of a disk having variously sized slots in its periphery or a long graduated plate with similar slots along its edge.

2.
 and type, bobbin margins, number of parallel strands, gap length, layer insulation thickness, wrapper thickness and end margin lengths.

The program allows the user to split, move and interleave To intersperse one after the other. See sector interleave and memory interleaving.

interleave - interleaving
 windings and set variable size sectors. Magnetics Designer is priced at $1725 and includes a year's worth of maintenance. More information and a demonstration version of Magnetics Designer are available on Intusoft's Web Site at http://www.intusoft.com.

What Makes Magnetics Designer Unique

Magnetics Designer performs synthesis as well as analysis of transformers and inductors. Classical design methods rely on home-grown software programs that are patched together, or "build and test" iterations that are exercised until the appropriate behavior of the prototype component is achieved.

Magnetics Designer eliminates these costly design methodologies by accurately synthesizing the magnetic structure and analyzing the resulting behavior. The process includes the effects of frequency, geometry and material. The magnetic behavior obtained is output directly to a winding sheet and an electric circuit (SPICE) model so the device can be manufactured and simulated.

Applications include high-power transformers for aerospace and industrial power levels, subminiature sub·min·i·a·ture  
adj.
Smaller than miniature; exceedingly small.
 planar magnetics and general switched-mode power supply A switched-mode power supply, switching-mode power supply or SMPS, is an electronic power supply unit (PSU) that incorporates a switching regulator. While a linear regulator uses a transistor biased in its active region to specify an output voltage, an SMPS actively  design.

Magnetics Designer achieves significant gains in productivity by combining advanced 1D analytical algorithms and 2D finite element analysis techniques in a single, easy-to-use software tool. Initially, multi-parameter optimizations are employed to handle the design variable trade-offs (about 10,000-20,000 optimization passes per design). Finite element calculations are performed after the speedier analytical optimization algorithms.

Tools using FEA as the primary solution path can't perform the design variable trade-offs efficiently due to long run-time constraints. Thus, the user is forced to choose the specific core geometry and winding structure. This is a major drawback. Magnetics Designer, on the other hand, does this for the user. Two features make Magnetics Designer unique.

The first is the ability to actually synthesize a winding structure without user interaction and the second is the interactive nature of the synthesis process combined with fast multi-parameter optimization. The addition of an FEA solution at the back end of the optimization sequence makes Magnetics Designer even more accurate.

The result is a tool that generates an optimized magnetic design with accurate calculations of all key performance characteristics from a simple list of electrical, mechanical and thermal specifications. Designers are able to consider various geometry, material and winding strategies without actually building the component, thereby ensuring a low-cost, efficient design.

Established in 1985, Intusoft designs, develops and markets software applications and tools for analog and mixed-signal circuit design, analysis and test automation to electronics industries worldwide.
COPYRIGHT 1999 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1999, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Mar 3, 1999
Words:1067
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