带开关电容共模负反馈电路的运放怎么样仿真

zhouyan_730 · 发表于 2010-11-16 19:16:04

学习学习

jicanghai · 发表于 2010-12-7 23:15:12

那个文件很给力！

jicanghai · 发表于 2010-12-7 23:16:13

prevoppoint很好用啊，方便快捷！

IChina · 发表于 2011-1-11 11:06:46

prevoppoint是什么啊，哪位给介绍一下啊？

lindychen · 发表于 2011-1-11 14:39:14

prevepoint 就是在AC仿真时，点击options，然后可以看到，选中prevepoint即可，同时还需要仿真瞬态

fhchen2002 · 发表于 2011-1-11 16:19:34

回复 1# today_nothing

不妨參考看看這篇 '07 paper

AC Analysis of Idealized Switched-Capacitor Circuits in Spice-Compatible Programs.pdf (71.7 KB, 下载次数: 1143 )

AC Analysis of Idealized Switched-Capacitor Circuits in Spice-Compatible Programs

IChina · 发表于 2011-1-11 16:31:50

学习了呵呵

七星龙王 · 发表于 2011-1-12 19:41:57

回复 9# kuohsi

.OP 450U 只是改变输出OP的时间而已吧？

abonic · 发表于 2011-1-14 09:03:29

回复 3# today_nothing

The details of the method by 2#:
Use an Ideal VCVS plus some RC network if needed.
So that you can obtain an ideal CMFB and the corresponding desired DC condition, and AC as well.

sdmout · 发表于 2011-1-17 12:03:58

Switched cap circuits are not steady states, but periodical steady states. You will need PSS+PAC to simulate.

Or you can use an ideal cmfb (such as a vcvs) for ac simulations, and use SC cmfb for tran simulation only.

带开关电容共模负反馈电路的运放怎么样仿真

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