AC transient & analysis

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DCJW

Joined May 18, 2022
11
Hi, I had been doing the AC analysis and also transient for the below circuit and I found out that the value calculated and simulated using LTSpice is totally different. Not only the value but also the graph it looks very weird to me, is there any reasons or theory which may caused this?
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Jony130

Joined Feb 17, 2009
5,351
It looks to me that you did not analyze the small-signal model at all. But what you did, was that you apply a formula (equation) from a book without thinking about it.
Is this equation (from the book) apply to the case you have? The answer is No.
 
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