Article View: comp.dsp
Article #1751Re: 180 deg phase shift
From: john f andrews ece
Date: Tue, 07 May 1991 15:24
Date: Tue, 07 May 1991 15:24
26 lines
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1651 bytes
In article <1644@fs1.ee.ubc.ca> jthornto@ee.ubc.ca (Johan Thornton) writes:
>In article <1420@cameron.egr.duke.edu> wdp@ee.egr.duke.edu (William D. Palmer) writes:
>>How about an op-amp inverting amplifier?
>
>
>Sure... it's simple in the analog domain. In a digital system, the solution
>is a bit more complex. The transfer function is:
>
> X = -X
>
>
>--
>Johan Thornton
>(but my friends call me jthornto@ee.ubc.ca)
Well, sure, you all can say how easy it is, but you're stopping shy of the
hard part. Can't implement a transfer function without getting it into the
form of a difference equation! That's the challenge...
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!dali.cs.montana.edu!uakari.primate.wisc.edu!caen!uwm.edu!linac!att!princeton!njin!njitgw.njit.edu!hertz.njit.edu!jfa0522 From: jfa0522@hertz.njit.edu (john f andrews ece) Newsgroups: comp.dsp Subject: Re: 180 deg phase shift Message-ID: <1991May7.152409.3933@njitgw.njit.edu> Date: 7 May 91 15:24:09 GMT References: <1644@fs1.ee.ubc.ca> Sender: news@njit.edu Organization: New Jersey Institute of Technology, Newark, N.J. Lines: 26 Nntp-Posting-Host: hertz.njit.edu