Modeling Integrated Magnetic Components
Mar 1, 2005
Using finite element analysis (FEA) techniques, a
simulation tool generates frequency-dependent
models of integrated magnetic components, accounting for the materials and winding layout
of the magnetic component....
Circuit Analysis Accounts For Magnetic Fields
Nov 1, 2004
Ohm's law and Kirchhoff's voltage law (KVL) provide powerful tools for conventional circuit analysis (mesh analysis), but if time-varying magnetic fields...
Modeling DC-DC Converter Transient Response
Aug 1, 2004
Decoupling and bulk capacitance are used to limit the voltage deviation of dc-dc converters in the face of load steps. Yet, requirements for high power...
Impedance Reflections for Multi-Output Converters
Jul 1, 2004
In numerous equipment, a switch-mode power supply (SMPS) delivers various output voltages, each powering different sections. With the introduction of...
Design Technique Models POL Performance
Apr 1, 2004
The use of purchased dc-dc converter modules can simplify the implementation of board-level distributed power architectures (DPAs). However, when these...
Program Streamlines Power Converter Simulation
Mar 1, 2004
To meet the need for a simple Windows-based circuit-simulation program, a new software package called Power Circuits 101 is available for modeling electrical...
AC Rectifier Bulk Capacitor Selection with Analysis+SPICE
Nov 1, 2003
This exercise demonstrates how the blend of analysis + simulation/testing can lead to a better understanding of circuit performance, compared to using analysis or simulation/testing alone....
Ultra-Fast Simulation Expedites Accurate SMPS Design
Mar 1, 2003
A designer can put together a complete design before ordering the parts needed to build a prototype by using merely a desktop computer and some innovative SPICE software....
SPICE Conducts EMI Analysis
Jan 1, 2003
When designing a switchmode power supply, the input EMI filter is often considered the most difficult part because simple means are missing to predict...
CAD/CAE Software Aids Converter Design
Jul 1, 2002
Before the availability of computer-aided engineering software designed to run on PCs, engineers had little choice but to simplify assumptions for ballpark estimates of system performance. As a result, magnetic circuit analogies were used in place of true field analysis, and frequency response methods were used to evaluate stability in place of actual transient analysis....
