transfor impedance by using a transformer

Discussion in 'General Electronics Chat' started by shengwuei, Mar 16, 2010.

  1. shengwuei

    Thread Starter Member

    Aug 22, 2008

    This may be simple but please help me on some basic concepts.

    Question 1 :
    Using a 1:1 transformer (ex. ), if the secondary side is terminated with 50 Ohm load. What is the input impedance looking into the primary side ? If I input a 1Vpp, 100MHz sine wave, what is the signal level at the secondary side ?

    Question 2 :
    The same as the above question, but using a 1:2 transformer (ex. ).

    Question 3 :
    The same as question 2 but secondary side terminated with 100 Ohm load.

    Thanks !