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where i can find thyristor symbol

has not yet ',' , I found this in my book ^^

that's a possibility .... I'll try to simulate

This provides a bit more background to modelling SCRs & Thyristors:

http://www.intusoft.com/nlpdf/nl24.pdf

and

http://www.intusoft.com/nlpdf/nl27.pdf

describes a way to make a behavioural model using the IF, THEN, ELSE statements in the expressions for behavioural sources.

Although CL cannot implement the IF, THEN, ELSE structure described there, it is possible to model this using voltage controlled switches or comparators based on the TANH functions to make comparisons and switch parameters in an inline expression.

ok...its too complex...i think its better to look for another programm having implemented thyristor models..thx for your work !