Explaining Differences of BJT & MOSFET

Discussion in 'General Electronics Chat' started by execute, Dec 12, 2008.

  1. execute

    Thread Starter New Member

    Dec 12, 2008
    I know many formulas for it, basically memorized, because I simply cannot figure out circuit logic by myself, so on tests, I have to just plug in formulas basically.

    My main question is, what are the main differences of BJT and Mosfets?

    I know some differences, like BJTs seem to have lots of current, but MOSFETS seem to absent of any somehow. Different formulas as well.

    My problem is really, whenever they ask a question about MOSFETs and BJTs, and show an example of a similar situation I can do it, so I do the homework well. But then on the test, they change up the question or circuit so that it looks really weird or crazy, and then I get lost. I don't know what to do next etc.

    As a comp eng, I dont know why they teach us so much electronics, but I bet it gets worse for elec engineers, i feel upset for them :p.
  2. bertus


    Apr 5, 2008