Connect with us

Low pass filter

Discussion in 'Electronics Homework Help' started by Jantz, Jan 3, 2018.

Scroll to continue with content
  1. Jantz

    Jantz

    7
    0
    Dec 29, 2017
    If i had a sawtooth function of 1KHz and peak amplitude of 10 volts, at what frequency will this signal pass through a low pass filter with 3.5kHz?
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    10,336
    2,246
    Nov 17, 2011
    At any frequency - with varying degrees of distortion. You do the math.
     
  3. Audioguru

    Audioguru

    2,925
    654
    Sep 24, 2016
    You forgot to say any details about the lowpass filter. A simple single order RC? Then it cuts the harmonics gradually.
    If its cutoff frequency is 3.5kHz then it noticeably cuts 3.5k/5= 700Hz and higher.
     
  4. Jantz

    Jantz

    7
    0
    Dec 29, 2017
    That's everything i had for the question. When its need to be divided by 5?
     
  5. Audioguru

    Audioguru

    2,925
    654
    Sep 24, 2016
    Look at a graph in Google of the frequency response of a simple single-order RC lowpass filter. It begins dropping at 1/5th of the -3dB cutoff frequency.
     
  6. Jantz

    Jantz

    7
    0
    Dec 29, 2017
    I see....And ya the cutoff frequency is 3.5khz sorry i didn't notice it...Thanks btw can i pm u?
     
  7. Audioguru

    Audioguru

    2,925
    654
    Sep 24, 2016
    I do not want a PM, please ask questions in the forum so anybody can answer them.
     
  8. Jantz

    Jantz

    7
    0
    Dec 29, 2017
    Okok
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-