4.4 Manufacturing View

This section of the tutorial will introduce you to MDM's Manufacturing View, which draws a visual representation of how the windings should be wound onto the bobbin, to help you build your transformer in the real world.

Note: The Manufacturing View is still in a rudimentary state in the SIMPLIS MDM Beta Version. In the first commercial release, expect things to look somewhat different. Also, it will be renamed from "Manufacturing View" to Virtual Winding Machine View or similar.

In this topic:

Key Concepts

This topic addresses the following key concepts:

  • MDM can draw a transformer winding diagram, showing on which bobbin pin to start winding a winding, how to distribute it along and around the bobbin, and which bobbin pin to finish on.

What You Will Learn

In this topic, you will learn the following:

  • How to add create a winding diagram using the MDM Manufacturing View.

4.4.1 Showing the Manufacturing View

Close all of the MDM Results Windows and the MDM Status Window.

Double-click TX1, open the main MDM window by clicking Edit with SIMPLIS MDM... and then go the Winding tab.

Above the transformer visualization to the right, you will see a checkbox to the right labeled Manufacturing View and next to them a list of transformer windings. To enable the Manufacturing View, check this box, and then click on 1: Primary 1 to indicate you wish to show the manufacturing view for this winding.
Result: The transformer visualization should now look like this:

Zoom in to the right side of the core, to see better what the Manufacturing View is showing:

You can see that two turns are labeled S and E. This is where you start and end winding the wire, respectively. The arrows between layers show the direction of winding: starting from S, the wire is wound up the bobbin, and when the end is reached, the next layer starts immediately and is wound down the bobbin, and so on.

An arrow points to S and away from E, but there is nothing at the end of the arrow. What should be there are bobbin pin numbers (labels).

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4.4.2 Bobbin Pins

In the sub-panel for each winding to the left, you will see section called Bobbin Pins:

There are two pins to define, Start and End, which define the placement of the turns labeled S and E, respectively. By changing the option in the Position drop-down menu, you can pick whether the start or end pin is to the Left or the Right of the middle core leg. Under Caption you enter the bobbin pin number or label.

To define the bobbin pins for each winding,

  • For Primary 1, under Bobbin Pins, for Start leave the Position as Left, and enter 1 for the Caption. For End change the Position to Right and enter 2 as the Caption:
  • Zoom in and move the visualization to be able to see Manufacturing View on both sides of the core:
  • For Secondary 1, under Bobbin Pins, for Start set the Position to Right, and enter 3 for the Caption. For End leave the Position as Left and enter 4 as the Caption:
  • For Secondary 2, under Bobbin Pins, for Start leave the Position as Left, and enter 5 for the Caption. For End change the Position to Right and enter 7 as the Caption:
  • To show the Manufacturing View for all three windings at once, hold the Ctrl key and click on 2: Secondary 1 and 3: Secondary 2 in the box next to the Manufacturing View checkbox.
    Result: The visualization, when zoomed, should now look like this

You can now see at which pin each winding starts and ends, and how it is wound along the bobbin.

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4.4.2 Rotate the View

When you are wounding wire on a bobbin, it is typically placed "on its side" compared to the how you see it in the visualization in MDM. To see the Manufacturing View in this more useful perspective, click the R button located to the left of the Manufacturing View checkbox. The visualization will rotate 90 degrees clockwise:

Pressing R again will reset the view to its original orientation.

Feel free to experiment with different bobbin pin parameters to see how the visualization changes.

This completes the MDM tutorial. Please read through the final section Conclusions

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