to convert sinewave into a ramp wave

Discussion in 'The Projects Forum' started by manan22, Mar 15, 2009.

  1. manan22

    Thread Starter New Member

    Mar 15, 2009
    3
    0
    need help for converting sine wave into a sharp ramp wave for a project
    i have used a zero crossing detector & an integrator but the output becomes
    exponential.Thus need help with this.
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Schematic (with components)?
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,652
    2,348
    Hello,

    Did you use a resistor to charge the capacitor for the ramp ?
    Then it will be exponential as you say.
    When you use a constant current source the ramp will be a straight line.

    Greetings,
    Bertus

    PS as Bill said a schematic will help a lot to clearify.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    As B & B have asked, If you will post a circuit of what you are using then we can better assist you.

    hgmjr
     
  5. manan22

    Thread Starter New Member

    Mar 15, 2009
    3
    0
    it is a project that my sir wants to do in the college & he has not provided any circuit. he wants a project that can trigger a device for a chosen degree of phase angle.first he wants to convert any sinewave applied to the i/p into a ramp from 0 to 180deg.then he wants to compare it with the output of a counter using which we can increment or decrement the required degree of phase angle.i will ask my sir to provide a ckt diag but pls help with the initial stage the sir expects a lot from my group so i have to finish the project as soon as possible.thanks for all those who have replied:)
     
  6. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Are you sure it isn't you yourself who is supposed to create the schematic?
     
  7. manan22

    Thread Starter New Member

    Mar 15, 2009
    3
    0
    i had tried to make one but sir told me there were some mistakes so he will make the corrections.The ckt contains a combination ckt and i am not getting it right.So i and my sir both are trying to make a schematic.
     
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