H Bridge driver

Discussion in 'Homework Help' started by Nobby Nobbs, Jul 31, 2014.

  1. Nobby Nobbs

    Thread Starter New Member

    Jul 31, 2014
    11
    0
    Hi all, Quick question. I am doing a Btec in electronics and one of the questions in the course work has me a little confused.

    The text says
    Figure 5.3 shows a MOSFET bridge driver circuit shown below.

    [​IMG]

    The circuit above does not use MOSFETS does it ? they look like standard BJT's 2x NPN and 2x PNP

    Its not essential to the question as they just want me to explain how it works, that's no problem. It was just for my own sanity that the diagram does not match the text.

    Thanks

    Nobby
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,397
    497
    Yes, those are BJT. They probably recycled the picture.
     
    Nobby Nobbs likes this.
  3. Nobby Nobbs

    Thread Starter New Member

    Jul 31, 2014
    11
    0
    Thanks for the reply, that's what I thought and it makes no difference to my answers as they just need a description of how it drives the motor in either direction.

    Its a bit poor for the Assignment papers to be wrong but there seems to be a few mistakes on this course.
     
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