RF transformer design

Discussion in 'General Electronics Chat' started by froten_140, Aug 23, 2008.

  1. froten_140

    Thread Starter Active Member

    Jun 4, 2006
    Hello all,

    when designing a class A&AB RF amplifiers (for example for the range from 3Mhz to 30Mhz) using a transformer to match the laod to the transistor output impedence, the ratio of the turns can be easly calculated, but:

    Q1) how the actual number of the windings is calculated?
    Q2) in case the primary of the transformer is tuned , is the number of turns remains the same for the highest Q value of the tuned circuit?
    Q3) what is the prefered transformer to use? is it the balun, transmition line transformer, classic transformer...?

    thanx for any help
  2. dileepchacko

    Active Member

    May 13, 2008