Frenetic Public Documents
In this book you can find all the information related with the Frenetic Online usage and behavior.
- User Guide
- Core Losses
- Fringing Effect Losses
- Leakage Inductance with AI
- Magnetizing Inductance
- Winding Losses
In order to become a Master Engineer in Power Electronics, you are going to need to master the science of magnetics. Although we try to make the design experience as easy as possible in Frenetic, we've put together a guide so you don't waste a single minute on your journey to building your sample.
Waveform is the first section or screen of the Simulator. From this screen you will be able to build or upload your own waveforms for a specific operation point.
Suggested designs and simulation results will be generated based on the waveforms set in this screen.
At the top of the section you will see a field showing the file name. At any point you can modify the given name just by typing in the new file name and saving the changes.
Right below, you can find the Generate PDF and Share features.
In the central part of the screen you can find the schematic diagram of the topology that you selected in the previous step. In case that that you selected the custom option, you will see the schematic of the component (transformer or inductor).
Using the + WINDING buttons, you will be able to add either auxiliary or power windings in both primary or secondary sides.
The crossing arrows button in the top right corner of the diagram will allow you to expand the view of the schematic.
In order to build the waveform, you must fill in the blanks with the parameters from your converter. It is necessary to fill in at least the nominal values for all the parameters. If any nominal value from the input parameters is missing, the waveform builder will show an error message.
Minimum, maximum and tolerance values are optional and will only affect the suggested designs. Results of the simulation will always be calculated from the nominal values.
The list of parameters will vary depending on the selected topology. The common parameters are: Ambient Temperature (T), Magnetizing Inductance (L), Switching Frequency (fsw) and Turn Ratio (m2).
Once all the blanks are filled in (with at least the nominal values), you can click the UPDATE WAVEFORM button. In a few seconds you will be able to see the results and representation of the built waveforms.
Every time you make a change to any input from the waveform builder, you must click the UPDATE WAVEFORM button to see the new results.
You can also do it with the RUN button. By clicking it, you will update the waveform and run the simulation at the same time.
Above the Results table, you can find the Advanced button that will display a new screen, allowing you to set different requirements and parameters regarding your project.
You can use this section to store information and requirements critical for your design. These settings are not taken into account when simulating or generating designs (except forced convection).
Using the Forced convection mode, under the Cooling conditions section, will allow you to simulate your design using forced convection. Set a value for the speed of the Blowing Forced Air (m/s) and click the RUN button to do this.
For now, forced convection is the only module from the Advanced Settings that will affect your simulation.
Upload your own waveforms
As an alternative to the waveform builder, you can always upload your own waveforms through a CSV file. Simulation results and suggestions will be generated based on your uploaded waveforms.
To use this feature, you must click the UPLOAD CSV button that you will find below the Results Table.
Keep in mind that you will still need to fill in the common parameters (T, Lmag, fsw, m2) in the waveform builder section before uploading your CSV file.
Under the UPLOAD CSV button, you will find a feature to download a CSV file example. Make sure that your CSV file follows the correct format and contains the same headers as in the example file.
Either if you use the waveform builder or upload your own waveforms, you will be able to see the results in the bottom section of the screen. These results are:
- Results table: Showing the main calculations of voltage and current
- Waveform representation
- Discrete Fourier Transformation representation
These results will be available for both primary and secondary sides.
Suggest design and run
Every time you update the waveforms (either with the waveform builder or with the upload waveform feature), you will be able to generate suggested designs by clicking SUGGEST DESIGN button.
WARNING: If you click SUGGEST DESIGN button the simulator will take you to the List of Designs screen, not allowing you to move to another section until the suggested designs are generated.
Also, the platform will automatically load and simulate the first suggestion from the list of designs, removing any previous design that you could have loaded in the Core and Winding sections.
Keep in mind that, to run a simulation you need to have previously loaded a complete design, using the Core and the Winding sections.
The run button will also update the waveforms from the waveform builder inputs.
In the bottom part of the screen, you can find additional buttons:
It is important to save the file before exiting the simulator or doing any actions with the file (sharing, requesting Ansys model or ordering a sample).
- Ansys download: Allows you to download a Maxwell file of the simulation.
- Delete project
- Return to My projects
List of Designs
- Core shape and size.
- Temperature (T): This result refers to the maximum temperature reached in the component.
- Total Losses (Pt)
- Dimensions (WxLxH): Width, length and height referred to the whole set.
The aim of these suggestions is to provide a starting point for the design process. With the technology offered by the Frenetic platform you will be able to modify parameters of your design in the Winding and Core sections.
By default the platform will provide 3 suggested designs, but we can change that number up to 10 in the drop-down menu.
In the left part of the screen you will see the drawing of the core , as well as a brief breakdown of the results and the winding arrangement representation of the selected design.
This feature will be available soon in the user guide.
Generate Designs and Load Design
Unlike the Suggest Design feature (from the Waveform screen), when clicking in **Generate Design**, you will still be able to navigate through the rest of the platform while the tool generates the list of designs. Also, the first suggestion will not be automatically loaded.
- Load Design : By clicking here you will load all the information regarding the core and the windings of the selected design in the respective screens. This means loading all the inputs from the suggested design and also running the simulation.
Once you load a design you can access the detailed information and also make any changes, going through the Core and Winding sections.
At any point in the design process, you can reload the original design, erasing all the changes that you made in the Core and Winding sections.
In the core section you will be able to select and define the parameters of your core, as well as seeing results of the simulation regarding Core losses and magnetic flux density.
At the top of the screen you will find several drop-down menus in blue, from which you will be able to define the parameters in order to characterize your core. These are: