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发表于 2012-3-27 08:46:43
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本帖最后由 e3po 于 2012-3-26 21:26 编辑
SPICE Using OrCAD PSPICE, WINSPICE or LTSPICE
这是 Dr. Lynn Fuller 博士撰写的长达 70 页的介绍, 读一下绝对有收获。
http://people.rit.edu/lffeee/SPICE_OrCAD_WinSPICE_Fuller.pdf
Undocumented LTspice 这里面介绍了不少 LTC 不希望或者不愿意公开的设置, 如果要用好 LTspice, 不妨认真阅读。
http://ltwiki.org/index.php5?title=Undocumented_LTspice
“LTspice is written to be generally syntax compatible with Pspice (as well as a few other popular versions of SPICE). To this end, it often supports multiple syntactical synonyms. However, there are a few operators/functions with mutually exclusive definitions that make it impossible for LTspice to be 100 percent compatible with all other SPICEs (I suppose LTspice could include a syntax mode command, but that might lead to licensing issues).
The most problematic difference between LTspice and Pspice syntax is with the exponentiation operand where LTspice requires two asterisks (**) instead of the Pspice carrot symbol (^). (This is used for the boolean XOR operator in LTspice.)
The bottom line: if you carefully search through your net list and replace all 4 or 5 such instances with the double asterisk, your simulation should run just fine (faster and more accurately, actually) in LTspice.
Regards -- analogspiceman
PS: This is exactly the type help you could get on the (very active) LTspice support group on Yahoo. ”
http://www.electro-tech-online.c ... ice-transients.html
LTspice 的 Yahoo group 是开放的, 自己加入就可以了:
http://tech.groups.yahoo.com/group/LTspice/
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