From 04:00 PM CDT – 08:00 PM CDT (09:00 PM UTC – 01:00 AM UTC) Tuesday, April 16, ni.com will undergo system upgrades that may result in temporary service interruption.

We appreciate your patience as we improve our online experience.

Multisim and Ultiboard

cancel
Showing results for 
Search instead for 
Did you mean: 

Two winding transformer - DC bias-ed AC source on primary

Hi, 
in Multisim 14.2 - Evaluation version, simulating the circuit with an ideal insulating transformer 1p1s, 10:10 turns (1:1 ratio). The transformer primary is excited with a 60Hz AC voltage source, and the secondary is closed through a 10 Ohm resistor.  

Q1: Why is my current in secondary changing when I add a voltage offset (DC bias) to the AC source?  

Q2: Why current flows in the secondary when the primary side is excited with a DC source only?  

 

Do I need to adjust the transformer model to properly handle the DC presents and how?  

 

Thank you in advance for help with Multisim  

Best,  

Alex (Dalian95) 

 

 

 

0 Kudos
Message 1 of 1
(1,764 Views)