PWM using 555 timer

Discussion in 'The Projects Forum' started by ali19, Jul 8, 2009.

  1. ali19

    Thread Starter New Member

    Jul 8, 2009
    1
    0
    I am designing an Robot and trying to get a way to use PWM to drive my H-bridge circuit. Can I build one with a 555 timer??? If so what are the precautions I need to take in order not to blow up my FETs???
     
  2. DedeHai

    Active Member

    Jan 22, 2009
    39
    0
    if you want a pwm controller, use the tl494, its a universal pwm controller that can be used for almost everything
    if the pwm does not need to be regulated, you can use a lm555
     
  3. Wendy

    Moderator

    Mar 24, 2008
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    2,535
  4. millwood

    Guest

    you can also add regulation to 555, either through the reset pin (making it a gated pwm generator), or through the cv pin (less range).
     
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