+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Newbie level 4
    Points: 1,086, Level: 7

    Join Date
    Feb 2007
    Posts
    7
    Helped
    1 / 1
    Points
    1,086
    Level
    7

    function generator using PWM

    hi.. i am trying to make a function generator using pwm signals generated by 8051 microcontroller.. i can generate the pwm pulses but i am not sure about obtaining sine and triangular singles from these pwm pulses. pls help me about this topic..

    •   AltAdvertisment

        
       

  2. #2
    Newbie level 4
    Points: 1,086, Level: 7

    Join Date
    Feb 2007
    Posts
    7
    Helped
    1 / 1
    Points
    1,086
    Level
    7

    Re: function generator using PWM

    i am fibished with ths job.. i did it using a voltage controlled oscilator integrated circuit called 8038. i amplified the output of the microcontroller using an octocoupler. i obtained the DC value of the pwm pulses using an R-C circuit.. then i fed this DC value to the 8038 integrated circuit. now by changing the duty cycle of the PWM signal i can change the frequency of the output signal. 8038 can produce sine-triangulae and square waves at the same time..



--[[ ]]--