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Re: Feedback control system to guarantee meta-stable state

by Martin Thompson <martin.j.thompson@[EMAIL PROTECTED] > May 14, 2008 at 11:28 AM

alice@[EMAIL PROTECTED]
 writes:

> I want to make a classroom demonstration showing a flipflop in a meta-
> stable state.  You know, power supply, perfboard, oscilloscope.  I'd
> like to construct a circuit using a small number of chips, that uses
> feedback control to _guarantee_ that the flipflop is operated in a
> meta-stable state.  My only idea so far is to build a delay locked
> loop that schmoo's the relative position of clock and data edges, such
> that the long term average output (after RC filter) is 50% of supply.
> But this requires a voltage controlled delay line, which isn't really
> a catalog part.  Does anyone have a better idea of how to demonstrate
> meta-stability on a breadboard?
>

Does this article help any?
http://www.sigcon.com/Pubs/news/4_4.htm

Cheers,
Martin

-- 
martin.j.thompson@[EMAIL PROTECTED]
 
TRW Conekt - Consultancy in Engineering, Knowledge and Technology
http://www.conekt.net/electronics.html
 




 2 Posts in Topic:
Feedback control system to guarantee meta-stable state
alice@[EMAIL PROTECTED]   2008-05-12 18:32:48 
Re: Feedback control system to guarantee meta-stable state
Martin Thompson <marti  2008-05-14 11:28:48 

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