Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Saturated BJT and amplifier

  1. Apr 30, 2006 #1
    I'm really confused between saturation and amplifier. When will the transistor work in saturation mode and in amplifying mode? Resistors are the matters. We chose the resistors so that the transistor will work in saturation or amplifying. How can we chose?
  2. jcsd
  3. Apr 30, 2006 #2


    User Avatar
    Gold Member

    Well you choose the resistor values depending on how you want the transistor to operate. As an example you may want to choose the q points so that the transistor is mid-point biased. These Q point values are determined by the (biasing) resistors used. The process of setting the proper operating(Q) point for a transistor/amplifier is called DC biasing. There are several biasing techniques, each with its own advantages and disadvantages. Here are a few links
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Saturated BJT and amplifier
  1. BJT saturation (Replies: 5)