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Assigning AC voltage

- April 27, 2026 at 9:02 am
  
  ss135
  Subscriber
  
  Hi All,
  
  What's the correct way to assign AC voltage to the phase windings in a PCB in HFSS ?
  I connected voltage sources to the desired terminals and gave magnitude 220*sin(2*pi*50*t) , 220*sin(2*pi*50*t - (2*pi/3)) and 220*sin(2*pi*50*t + (2*pi/3)). While putting the board into analysis, it gave error as "No excitations are defined".
  
  Is there any option to define time 't' in the voltage expression or do I need to provide range for 't'?
- April 28, 2026 at 12:52 am
  
  Praneeth
  Ansys Employee
  
  Hi,
  Thank you for reaching out to the Ansys learning forum.
  It looks like you have posted one more question on the similar topic - Assigning Excitation in HFSS which is being answered. You can post your reply in that thread. Kindly refrain from creating copies of question. If you have any additional points, you can add them as comments instead of raising a new question.
  Best regards,
  Praneeth.

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