Removing unwanted frequencies from circuit and adjusting voltage range of oscillations

Discussion in 'General Electronics Chat' started by artmaster547, Jan 6, 2016.

  1. artmaster547

    Thread Starter Member

    Jan 6, 2016
    89
    1
    Hi
    I wish to create a circuit topology that will remove all unwanted frequencies from an input signal, which is created from a phase shift oscillator (if this is possible by implementing something to the oscillator that is even better), to reduce unwanted harmonics as much as possible, I would also like to know if there any topologies that mean the oscillations occur between a certain range Vmin and Vmax

    Thanks
    Art
     
  2. BR-549

    Well-Known Member

    Sep 22, 2013
    2,004
    394
    Look at mems resonators.
     
  3. crutschow

    Expert

    Mar 14, 2008
    13,024
    3,236
    What is the frequency?
     
  4. artmaster547

    Thread Starter Member

    Jan 6, 2016
    89
    1
    1 kHz
     
  5. artmaster547

    Thread Starter Member

    Jan 6, 2016
    89
    1
    Hi Thanks for the suggestion but I would like to create it using conventional analogue components that I can simulate using LTSpice
     
  6. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,542
    1,251
    Based on your other two threads on the same topic, I suggest that you reduce or eliminate the harmonics by improving the quality of the oscillator. This will be easier than creating a multi-pole bandpass filter or resonant trap.

    ak
     
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