I am simulating the triac control on example circuit. Alhtough the simulation run sucesfully, I got:

Error on line 18 : r:u2:1:_r1 u2:1:n02098 u2:1:trg 1.462* 0.342
Unknown parameter "*"

in the SPICE Error log at the begging of the simmulation. Do not know where is the line 18 mentioned in the error mesage.I don't know too, how to enable the sweep resistor legend to display corresponding resistor values and colors.

 

hi Kevil,
Ran the Sim, I show no errors in the log,.?
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how to enable the sweep resistor legend to display corresponding resistor values and colors.

hi,
Is this what you are asking.?
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hi
Or this.?
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Hi Eric, thank you. Yes, I didn't know View, Step Legend.

My Sim still shows error at the beginning:



I am not sure, if I ran the Sim correctly: Simulate, Run nothing appears, just the error window. I close it and double click on R1 current which shows me the Sim graph on the black background.

 

hi,
Your error is in U2 the DB3, check the Net list.
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Update:
Post your DB3.sub file, you will have to zip to upload

 

The model for DB3 in the OP's lib file would seem different from the one in yours, Eric.
Kevil, try editing the DB3 model by deleting the space after the asterisk in the 1.462* 0.342 bit.

 

On my computer when I simulate the TS circuit, I'm only getting the negative halves at the output. Does anyone know why?

 

@Alec_t

Please have a look on my st_diacs.lib below.

 

hi jony,
What voltage do you see on the Triac Gate.?
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hi K,
Looking at the st_diacs text in the .lib for the DB3 it looks OK.

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I am simulating the triac control on example circuit. Alhtough the simulation run sucesfully, I got:



in the SPICE Error log at the begging of the simmulation. Do not know where is the line 18 mentioned in the error mesage.I don't know too, how to enable the sweep resistor legend to display corresponding resistor values and colors.

View attachment 226913

There is an error in st_diacs.lib file. There are missing or mis-placed curly braces in line 79.

Find line 79:
R_R1 N02098 TRG 1.462* {Tr}

Change line 79 to this:
R_R1 N02098 TRG {1.462* Tr}

 

hi jony,
What voltage do you see on the Triac Gate.?

This is how the Triac current looks like.
Which type of a Triac did you use in your simulation? Did you use @Bordodynov lib?

 

Eetech00 has the solution (see post #12).

 

hi jony,
This is the Triac info I am using.
I don't have that 30Vdc offset.
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@eetech00

Thank you for advice on row 79, it fixed the error message .

 

I have another problem with different circuit. When try to run Sim I get:

 

hi Kevil,
I get the same error with your asc file.
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hi K,
Using my MOC 3081 model I get this result, OK.
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Added your circuit with my MOC3803, OK


Update:
Added copy of my MOC308x.lib

 

hi Kevil,
You also have a problem with that Triac, it will not conduct on the negative going part of the Phase.
Look at the circuit with a different Triac.

Your files seem to be corrupted.?
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