A variable frequency drive uses a varying frequency and voltage signal to control the speed and torque of a motor. It promises an excellent control performance and energy savings up to 20% when compared to traditional driving techniques. However the fast switching of high currents is well known to create EMC issues and leads to the need of filtering the switching circuit. In this webinar, we show how the EMC performance of a control system for an automotive motor can be simulated. For this task we have coupled a full-wave 3D analysis to a switching circuit. The simulation results are directly compared to measurements of prototypes and show an excellent agreement.
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This product how-to describes how to use Synopsys' Saber platform for modeling and simulating physical systems and CST STUDIO SUITE® electromagnetic simulation software. Synopsys and CST recently launched a technology partnership to build a high-quality...
Shielding Analysis of a Metallic Enclosure
The aim of this article is to emphasize the application of a statistical approach to the analysis of the shielding properties of a real enclosure for radio communication equipment. A model of the enclosure was simulated with the CST MICROWAVE STUDIO®...
Cavity Modes in a Shielding Enclosure
The effectiveness of shielding enclosures is reduced by apertures for heat dissipation, cable penetrations, etc. The EMI from a slot in a shielding enclosure is calculated by a finite-difference time-domain method and by CST MICROWAVE STUDIO®, with...
Optimizing EMC/EMI Performance of Multimedia Device Housings by 3D EM Simulation
Multimedia products for automotive applications consist of various subsystems, including CPU, peripherals, clock domains, and interfaces, that are combined in a single multimedia housing. The resulting device needs to be EMC compliant according to...
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