本帖最后由 linzuxiang 于 2011-4-4 14:13 编辑
各位好心的大大们，俺这几天用NI multisim10仿真三运放组成仪表放大器，老是运行几百毫秒后，软件就中断仿真，弹出错误信息，看着错误信息，那些英文报告内容又看不懂什么意思，纠结……求大大们指导下……泪奔啊……电路功能：
1.完成把10uv直流电压放大到100uv
2.电路具备调零功能
3.具备可调放大倍数
这是电路图：
这是错误报告信息：
Instrument operation performed (2011, April 04, Monday, 00:29:16)
| Instrument Analysis:Transient Analysis
| | Plot title:
| | Analysis settings
| | | Initial Conditions:Automatically generate initial conditions
| | | Starting time (TSTART):0
| | | Stop time (TSTOP):1e+030
| | | Plotting increment (TSTEP):automatically calculated (less than:1e+030)
| | | Maximum time step (TMAX):automatically calculated (less than:1e+030)
| | Perform consistency check
| | Variables from analysis
| | | Show device values at the end of the simulation
| | Representation as SPICE commands
| | | begin-scope page
| | | checknodes 3
| | | save all
| | | iplot all
| | | set trtol = 7
| | | set itl4 = 100
| | | set convlimit
| | | set rshunt = 1e+012
| | | -param hrange 0 1e+030
| | | save
| | | tran -env-options 1e-005 1e+030 0 1e-005 auto_ic auto_tstep auto_tmax
| | | if-error end-scope audit-log-show
| | | show all
| | | showmod all
| | | end-scope
| | Multisim Default Analysis Options
| | | Truncation error overestimation factor: 7
| | | Upper transient iteration limit: 100
| | | Enable convergence assistance for code models
| | | Shunt resistance from analog nodes to ground: 1e+012
| Output from instrument analysis
| | TRAN: Timestep too small; time = 0.0322228, timestep = 0:cause unrecorded.
| | doAnalyses: timestep too small
| |
| |
| | tran simulation(s) aborted
这是示波器显示：
仿真电路.zip
(96.13 KB)
file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/469381320/QQ/WinTemp/RichOle/ZC41IK6%60J%7DU%7B0J~6MU%60N(G1.jpg
file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/469381320/QQ/WinTemp/RichOle/ZC41IK6%60J%7DU%7B0J~6MU%60N(G1.jpgfile:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/469381320/QQ/WinTemp/RichOle/ZC41IK6%60J%7DU%7B0J~6MU%60N(G1.jpg |
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