Difference between revisions of "How can we conclude that the open loop system on page 6 is stable from the bode plot?"

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'''How can we conclude that the open loop system on page 6 is stable from the bode plot?'''
 
'''How can we conclude that the open loop system on page 6 is stable from the bode plot?'''
  
The bode plot is of the '''open loop''' transfer function, but it tells us about stability of the '''closed loop''' system. If you're interested in stability of the open loop transfer function then just check the positions of the poles. If any have a real part greater than zero then the open loop system is unstable.
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The bode plot is of the '''open loop''' transfer function, but it tells us about stability of the '''closed loop''' system. If you're interested in stability of the open loop system then just check the positions of the poles. If any have a real part greater than zero then the open loop system is unstable.
  
 
--[[User:Mjdunlop|Mary Dunlop]] 15:53, 6 November 2006 (PST)
 
--[[User:Mjdunlop|Mary Dunlop]] 15:53, 6 November 2006 (PST)
  
[[Category:CDS 101/110 FAQ - Lecture 6-1]]
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[[Category:CDS 101/110 FAQ - Lecture 7-1]]

Latest revision as of 00:00, 7 November 2006

How can we conclude that the open loop system on page 6 is stable from the bode plot?

The bode plot is of the open loop transfer function, but it tells us about stability of the closed loop system. If you're interested in stability of the open loop system then just check the positions of the poles. If any have a real part greater than zero then the open loop system is unstable.

--Mary Dunlop 15:53, 6 November 2006 (PST)