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Stability discussion (Read 19863 times)

Mayank

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Re: Stability discussion
Reply #30 - Nov 09^th, 2009, 11:01am

Hi raja,
MiddleBrook requires you to calculate Av and Ai...Using these probes in your schematic....you dont need to perform any processing....just place an iprobe in your schematic....choose stb analysis from ADE....select the probe as the probe instance...and run a stb analysis over deisred freq. range...It automatically gives you the Loop Gain Bode Plots...No post processing required...faster analysis...
[ I agree with Jerry here....Best Design Tool -> Capable designers Tongue

]

--Mayank.

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buddypoor

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Bremen, Germany

Re: Stability discussion
Reply #31 - Nov 10^th, 2009, 12:53am

Hi Mayank,

I cannot comment on ADS capabilities (stb analysis) as I am not familiar with this program.
However, in order to avoid problems and misunderstandings, just one hint: The phase margin concept within the frame of the BODE plot gives correct results only if the NYQUIST criterion in its simplified form with its restrictions is applicable.
Thanks
LvW

LvW (buddypoor: In memory of the great late Buddy Rich)

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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: Stability discussion Reply #32 - Nov 15^th, 2009, 12:12am Note that it is spectre that is providing stb analysis within ADE (Analog Design Environment) (not ADS which is a simulator from Agilent; that may well also have a stb analysis, but I can't answer that). Regards, Andrew
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Mayank Community Fellow Offline Posts: 334	Re: Stability discussion Reply #33 - Nov 15^th, 2009, 2:38am Hi, I was referring to Analog Design Environment ADE from Cadence....Guess buddy mistook it as Agilent's ADS, but simulator's name wasnt his point....So didnt correct... Anyways, Thanx for the correction Sir.... regards, Mayank
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