TOPSwitch-GX with 220V 400Hz main power

Borisevich -


It's possible there are some issues/concerns when moving to a 220V/400Hz application. Without the particulars for your design though, it's hard to address what those concerns might be.


Can you please send me your design schematic, PI Expert files, etc? If those arn't available, can you point me in the direction of what reference design you used?

-The Traveler

Borisevich -


It's possible there are some issues/concerns when moving to a 220V/400Hz application. Without the particulars for your design though, it's hard to address what those concerns might be.


Can you please send me your design schematic, PI Expert files, etc? If those arn't available, can you point me in the direction of what reference design you used?

-The Traveler

Hi.
Thank you for reply.

Here are the schematics and PIExpert desigh files.
http://dl.dropbox.com/u/638652/Sch.jpg
http://dl.dropbox.com/u/638652/15V12A.uds

We also have several power supply with other output parameters, but schematics is the same. Transformers are made exactly as specified in design file.

Best regards.

Borisevich -


You can most likely run this design from 400 Hz without any issues. You output stage, transformer, and PI device can all stay the same. The one critical area you'll want to investigate will be the bulk cap. At 400 Hz, this bulk cap will see additional ripple current, so it would be a good idea to monitor the temperature of this part and see how hot it gets under worst case test conditions.

-The Traveler

Thank you for recomendation. I will pay attention for selection of input capasitor.

Best regards.