how can I plot transconductance of a V-I circuitry from claculator?

may6503 · 发表于 2011-6-28 03:32:01

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Hello,

I got a problem to plot Gt from my circuit. I tried to plot it from wave function of calcualtor but it shows "nil" from expression...Thanks in advance!

ysw1981 · 发表于 2011-6-28 10:45:58

奶奶的你不会说中文啊鸟语懒得看

ericking0 · 发表于 2011-6-28 15:05:41

have u saved the current data?

may6503 · 发表于 2011-6-28 16:21:15

回复 3# ericking0

Yes, I did. Actually, I did get Gt plot once but most of time I couldn't see wave() from the window of calculator. I only see those expressions of traces. And it normally accompanies with question mark in those expressions. I wonder is there anything related to settings? The system I am using is IC610+MMSIM61.

Thanks for your replying and do you have any idea on this issue?

By the way, my work laptop doesn't have chinese keyboard so I can't type chinese.

永远不加班 · 发表于 2011-6-28 20:04:25

你可以先确定一下你想看的电流是否真的能plot.如果可以说明你的公式表达有错误。仔细看看你的公式说不定就是因为netname变了导致的

helianalog · 发表于 2011-6-29 15:03:07

要测Gm? 是一个mos管吗？
仿真电路能否贴下？

may6503 · 发表于 2011-6-29 19:10:47

回复 6# helianalog

Thanks for your replying. I know how to plot it now. I was going to plot a Gm of a V-I converter and check its performance. Thanks guys!

hdqkwr · 发表于 2011-6-29 20:08:03

在calculator里选info-》op,选你要看的管子的gm,这样可以看到某个工作点下的gm, 再跑一个parametric的仿真，就可以看到不同工作点下的gm, 这样就是图形了。

helianalog · 发表于 2011-6-30 08:57:37

回复 7# may6503

So, you can share your experience with us now.

samuelyou · 发表于 2011-7-1 09:11:03

Share, share, share! May be new one way for another.
It's the final meaning of fourm.

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