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Phase Shifter

  1. Apr 28, 2006 #1
    Can anybody explain to me what and how a phase shifter can be implemented using BJT.or give me the site which can get more details about this.
  2. jcsd
  3. Apr 28, 2006 #2


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    sounds like something to post to the USENET newsgroup comp.dsp or to the music-dsp mailing list at http://ceait.calarts.edu/mailman/listinfo/music-dsp [Broken] or read some stuff at Harmony Central like http://www.harmony-central.com/Effects/Articles/Phase_Shifting/ .

    the use of BJTs is at so much lower level than what you need to be thinking about. you need to deal with the signal processing math first.
    Last edited by a moderator: May 2, 2017
  4. Apr 29, 2006 #3


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    Well, in the analogue treatment, look up Bessel filters: they implement linear phase shift. As Bessel filters are pure-pole filters, they can easily be implemented with a few amplification stages (using your BJT if you like) and passive R and C components...

    See for instance: http://www.filter-solutions.com/bessel.html

    (there are probably better sites around for that, but it is a start).

    Now, maybe you do not want to have a linear phase shift, but something else. Then you'll have to be more specific...
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