我做了一個UC3854的仿真電路，仿真電路如圖所示，電路倒是能夠運行仿真，但是怎么仿不出結果呢？
各位高手請指點。出錯信息如下：
Loading dynamic libraries...
saber
Host image, unknown running Windows NT 5.1 Ver. 2600 Service Pack 1
Wed May 26 17:01 2004
> dc
The no_ramping algorithm failed. Trying the dyn_ramping algorithm.
Succeeded with the dyn_ramping algorithm.
execution time= 0.484 sec.
> tr (tend 25m,tstep 1000n
*** ERROR "ALG_NO_SOLUTION" *** Cannot find nonlinear system solution.
*** ERROR "ALG_SINGULAR_JACOBIAN" *** Singular Jacobian matrix.
Some possible causes for a singular Jacobian matrix:
- Model operating outside of its intended region of operation.
- Node/subsystem with no connection to the reference (floating).
- Current loops (voltage sources/inductors in parallel).
- Missing equation and/or missing variable reference.
SABER仿真問題請教！
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500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點擊可放大。\n按住CTRL，滾動鼠標滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/17/1085634356.jpg');}" onmousewheel="return imgzoom(this);">@zhseda
[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點擊可放大。\n按住CTRL，滾動鼠標滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/17/1085634356.jpg');}"onmousewheel="returnimgzoom(this);">
圖中的快恢二極管是STTA1206D,而不是1N4148，我沒有改過來，不好意思
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@zhseda
[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點擊可放大。\n按住CTRL，滾動鼠標滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/17/1085634356.jpg');}"onmousewheel="returnimgzoom(this);">
圖中的快恢二極管是STTA1206D,而不是1N4148，我沒有改過來，不好意思
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