Hello Everyone
David Giglio here with Ozen Engineering, Inc. In this video, I will show you how to use ANSYS PExprt to design a full bridge converter transformer with a split secondary, as shown in this schematic.
Getting Started
- Open a PExprt session and go to File.
- Click New to start a new project.
- Choose from the four different magnetic component types:
- Inductor
- Transformer
- Couple of Inductors
- Flyback Type
- For this example, choose Transformer Converter Based Full Bridge.
Configuration Settings
There are three tabs to configure settings:
-
Waveforms Tab
- Configure input values and output values.
- Input: Voltage, Switching Frequency, Duty Cycle or Turns Ratio.
- Output: Voltage, Power, and Current Ripple.
-
Design Inputs
- Various settings to configure; most can be left as default.
- Change winding setup from 2D to 1D if needed.
- Set minimum primary winding magnetizing inductance.
-
Modeling Options
- Winding losses calculation: Set to harmonics and AC resistance.
- Core losses calculation: Change from Steinmetz to Steinmetz Modified for non-sinusoidal excitation.
Results and Analysis
After running the program, the results display the top 10 best designs based on lowest losses. You can change the classification criteria:
- Minimum Losses (default)
- Minimum Temperature
- Minimum Volume
- Minimum Height
- Minimum Footprint
Choose the number of designs to display (default is 10, but can be adjusted).
Library and Design Selection
- Select a manufacturer from the library. For this example, choose Ferrite Cube.
- Drag the Ferrite Cube folder to the design library.
- Select the core, bobbin, wires, and material for the design.
- Consider all variations or make specific selections to reduce variations.
Design Process
Run the design process considering all selected variations. The program analyzed 4188 designs and obtained 115 valid designs. The top 10 designs with the lowest losses are displayed.
Results Summary
- Core Name/Type
- Wire Name/Type
- Volume
- Turns of the Primary
- Operating/Maximum Temperature
- Magnetizing Inductance
- Parallel Turns
- Power Losses
- Window Filling Percentage
- ID Number
Performance and Construction Results
View a chart showing window filling percentage, winding rate, and loss comparison (core vs. conductor loss). The constructive results show a 2D cross-section of the design geometry.
FBA Link and Simulation
- Click FBA Link Transient and choose 2D or 3D. For this example, 3D is chosen.
- Open Maxwell Transient Project to create and open the project without solving it.
- To solve, click Solve Maxwell Transient Project.
Additional Tools
Use PE Mag to modify the geometry and winding layout if needed.
Contact Us
Contact us to learn about our simulation capabilities and request a demonstration. We are an ANSYS Elite Channel Partner, providing training, consulting services, and selling ANSYS software packages.
Thank you very much and have a nice day.
Ansys PExprt Power Converter Export into Ansys Maxwell Hello everyone, David Giglio here with Ozen Engineering. In this video, I will show you how to use ANSYS PE Expert to design a full bridge converter transformer with a split secondary, as shown in this schematic.
To get started, open a PE Expert session, go to File, and click New. Choose from the four different magnetic component types: inductor, transformer, coupled inductors, or flyback type. In this case, I'm choosing the transformer converter based full bridge.
For all magnetic component types, you choose either converter based or waveform based. I choose full bridge, and this window appears. There are three tabs to configure settings: waveforms, design inputs, and modeling options.
In the waveforms tab, configure the input voltage, switching frequency, power, and current ripple. In design inputs, configure various settings, such as winding setup. I changed it to 1D partially full. Minimum primary winding magnetizing inductance is an important setting.
When you run the program, it may show results that meet criteria except for this minimum primary winding magnetizing inductance. In that case, you will see a warning sign. Configure modeling options, such as winding losses calculation and core losses calculation.
By default, core losses calculation is set to stymies. I changed it to stymies modified, which is used when using a non-sinusoidal excitation. After running the program, the results will display the top 10 best designs based on lowest losses.
You can compare the top 10 best designs or change the criteria by clicking the website's list of results, selecting solutions, and choosing another classification. In the library section, choose various manufacturers for your design. I chose the ferric's cube.
Now, choose the core, bobbin, wires, and material in the design. You can make selections for the program to consider possible designs or let the program choose every possibility. PE Expert obtained 115 valid designs out of 4188 analyzed designs. The 10 designs with the lowest losses are shown.
The list of results shows a summary of all the designs. In the performance results tab, see a chart showing the window filling, winding rate, and loss. In the constructive results, see a 2D cross-section of the geometry for this design.
Once you have the solution, click FBA link transient and choose the 2D or 3D option. It takes a few minutes to create a full Bridge power converter transformer with a split secondary already modeled. With PE Mag, you have control to modify the geometry and winding layout.
Contact us to learn about our simulation capability and request a demonstration. Ozen Engineering Inc is an ANSYS Elite Channel Partner and provides training, consulting services, and sells ANSYS software packages. Thank you very much, and have a nice day.
