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Electromagnetics
Electromagnetics

Ansys Q3D: Simulation of Parasitic Effects in Power Electronics

Overview

Training eLearning Basic

Learn how to use Ansys-Q3D-Extractor-based 3D circuit design to localize and optimize interference effects This training is offered as a 2-day course or alternatively as a self-paced eLearning course.

Duration
2 days

Prerequisites
None

Software used
Ansys Q3D

Benefits
  • Determining parasitic induction, resistance load per unit length, and capacitance
  • Familiarization with physics-related issues, software operation & effective workflows
  • Generating behavior models for the purposes of circuit simulation
  • Parametric simulation and optimization

Description

The evaluation and improvement of power electronics assemblies in terms of their parasitic inductance is, from both a technical and an economic perspective, of paramount importance. The loop inductance of the commutation circuit has a big impact on the switching characteristics of power semiconductors. The line inductance of intermediate circuit capacitors limits the PWM switching frequency and the potential currency signals. The gate-actuation-related coupling inductance at conductive paths may lead to switching characterized by oscillation and instability. When it comes to components connected in parallel, differences in DC and AC line impedance lead to uneven loads on such components.

Ansys 3D Extractor represents the industry standard when it comes to determining parasitic inductance, resistance load per unit length, and capacitance arising from the 3D geometry of assemblies such as packages, busbars, and PCBs. Practice-oriented examples are employed during the training to provide you with everything you need when it comes to using Ansys Q3D Extractor effectively; this covers operation of the software, physical and numerical modeling, and effective workflows. This training is ideal for development engineers and hardware developers seeking to evaluate and optimize the effects of parasitic properties even during the initial phases of power electronics circuit design.

Test the first module for 30 days free of charge

Get a first impression and test the first eLearning module of this training course without any obligation. No costs, no notice period.

Detailed agenda for this 2-day training

Day 1

01 Hands-on: getting going with Q3D Extractor

  • The concept of the simulation environment
  • Exercise: the influence of bonding wire arrangement on the inductance of a power semiconductor package
  • Introduction to the Ansys Electronics user interface
  • Importing and generating geometry plus how to allocate materials
  • Parameterization
  • Allocating electric meshes and terminals
  • Simulation settings

02 Calculating capacitance

  • Evaluation of results: frequency-dependent capacitance and conductance
  • Portraying field results
  • Parametric studies
  • Exercise: extracting the capacitance of a power semiconductor

03 Calculating inductance

  • Evaluation of results: frequency-dependent parasitic inductance and resistance load per unit length
  • Portraying field results
  • Parametric studies
  • Using Q3D solver technology to extract AC and DC inductance
  • Determining frequency-dependent impedance
  • Exercise: calculating the inductance of AC busbars

04 Linking to circuit simulation

  • The significance of partial inductance when it comes to circuit simulation
  • Linking to circuit simulation within a range of frequencies
  • The behavior of passive components
  • Exercise: parallel-switched capacitors within intermediate circuits – extracting input impedance and current distribution

Day 2

05 Extracting parasites when working on PCBs

  • Importing layouts and preparing simulation models
  • Important variables when characterizing a DC-DC transformer
  • The relationship between these output quantities and the response of circuits and EMC
  • Exercise: a DC-DC transformer

06 Characterizing components when simulating circuits

  • The description of inductive and capacitive components
  • Testing models of semiconductors
  • Overview of the device characterization tool in Simplorer
  • Exercise: circuit simulation for a DC-DC transformer

07 Simulation of transient switch signals

  • Dynamic link to Ansys Simplorer
  • Ways of improving circuit simulation convergence
  • Exercise: DC-DC transformer switching characteristics

08 Discussion and a preview of additional topics

  • Calculating wire-based emissions
  • Thermal coupling
  • Scripting
  • Optimization

Your Trainers

Frank Weiand
Business Development, CADFEM Germany GmbH, Stuttgart

Placement in the CADFEM Learning Pathway

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Test the first module for 30 days free of charge

Get a first impression and test the first eLearning module of this training course without any obligation. No costs, no notice period.

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Test the first module for 30 days free of charge

Get a first impression and test the first eLearning module of this training course without any obligation. No costs, no notice period.

Not the right offer or date?

Whether eLearning, classroom courses, live online training or customized workshops - together we identify the best option for you.

Do you have questions on the training or the eLearning?

When will I receive the final confirmation for my training booking?

Straight after you sign up, an automatic confirmation of receipt will be sent to the email addresses you provided. Once you have successfully verified the data you provided, you will receive your personalized sign-up confirmation, containing further information on course fees, the billing address, etc., by email within two to three working days.  

As soon as the minimum number of attendees has been reached, you will receive a final training confirmation containing further information. If you have booked an on-site training, we recommend that you wait until you have received this final confirmation before booking your travel and accommodation.

If the minimum number of attendees is not reached, we reserve the right to cancel the training seven days before it is due to start at the latest. We are happy to inform you on changing your booking to an alternative date. Please note that we accept no liability for hotel or travel bookings that attendees have already made.

When is the sign-up deadline for a training?

Training places will generally be allocated based on the order in which attendees sign up. For this reason, we always recommend booking for your desired date as early as possible.

As long as a coures still has free places, it can be booked.

At what time do the training courses begin and end?

Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT). 

Can I test the eLearning offer without obligation?

To get a clear impression of our online learning format, we offer you a trial allowing you access to the starting module of an eLearning course of your choice. No costs, no cancellation period or anything similar. Moreover, with this free test access you can check all the technical requirements for a smooth learning process. You can easily request the free module from any eLearning course.

How much time should I allow for an eLearning course?

Each online course day comprises four eLearning modules. You should ideally allow 90 to 120 minutes of uninterrupted learning time for each module. This will allow you to acquire the knowledge provided by a module and to consolidate it through quiz questions and Ansys exercises. By dividing each module into micro learning units, you can also make good use of smaller time windows, such as on your commute.

For how long can I access the learning content?

Prerequisite for the use of the eLearning courses is the use of a personalized access to the CADFEM learning platform. When purchasing an eLearning course, access to the learning platform is 365 days. As a subscription user, access to the learning platform starts and ends with the start and end of the flat rate. With the start of a further learning product (Learning Subscription, training, eLearning), access to your content is extended by 365 days.

Business Development Manager