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Which of the following transformer is used to convert unbalanced signal to balanced signal?

Which of the following transformer is used to convert unbalanced signal to balanced signal? Correct Answer Balun

  • Balun is a circuit device used to connect a balanced transmission line to an unbalanced load.
  • More commonly, an unbalanced transmission line such as a coaxial cable can be connected to a balanced load such as an antenna or any twin wireline.
  • For high frequencies, different kinds of transmission-line baluns exist.
  • At low frequencies, an ordinary transformer can be used to isolate the ground from the load as shown in the figure below:

          

Important Notes:

In Auto Transformer, one single winding is used as primary winding as well as the secondary winding

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The isolation transformer is a type of conventional transformer. The winding ratio of the Isolation transformer is 1:1 and it is also called the insulating transformer.

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