Design Issued in Phase shift Oscillator

Discussion in 'General Electronics Chat' started by yagnesh, Mar 24, 2009.

  1. yagnesh

    Thread Starter New Member

    Mar 24, 2009
    3
    0
    hello Sir
    I am new in this web site. i have confusion about my ckt which phase shift osc. i want to Generate 50Hz Freq using Phase Shift osc. for this vaule of resistor and capcitor is R=13kΩ and C= 0.1uf respectvely.now as per the Theory Gain is at least 29. so in Practically we can adjust this gain with any how? means Rf=30kΩ and Rin=1kΩ..etc but my circuit is not working in that type of gain adjustment. after R&D i select Rf= 2MΩ and Rin= 50kΩ. then after i can gererate a Freq but not 50hz. Gerenated freq is 329 Hz. i do not understand. why is this happen?
    Can you Plz tell me what can i DO?:(
    Thank you​
     
  2. yagnesh

    Thread Starter New Member

    Mar 24, 2009
    3
    0
    plz help me as soon as possible
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Why don't you post your schematic?
     
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