H-Bridge Uzing BUZ11 MOSFET N

Discussion in 'The Projects Forum' started by Kh_genius, Mar 25, 2006.

  1. Kh_genius

    Thread Starter New Member

    Feb 27, 2006
    4
    0
    Hi,

    I have a big problem in my project. I brought 4 MOSEFET Transistors N-channel that have a number BUZ11
    I tried to connect them as an H-Bridge and use it to drive a DC Motor, and I tried to turn them ON using PWM with 10Volt DC pulse, but the transistors did not operate never.

    How can I make the transistors operate as I want. Is there a driving circuit for them.

    Please, If any one has an answer or Idea, reply to my order.

    Thank you all

    sincerely,

    Kh.Z.Ismail
     
  2. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Must have gate voltage higher than source voltage on upper MOSFETs. When upper MOSFETs conduct, their gates must be higher than their drains! A second voltage source is needed:

    H-bridge using N channel FETs

    Here is one that I got to work with a 64.1KHz resonator (but not with the 4MHz resonator shown in my schematic):

    [attachmentid=1322]
     
  3. Kh_genius

    Thread Starter New Member

    Feb 27, 2006
    4
    0
    Thanks alot Man,

    It is the fastest replying to my order

    I will try your suggestions and read your informations and I hope to find a solution for my problem.


    Thank you where ever you are.
     
Loading...