Originally Posted by Andrew Leigh

Going to redownload winzip, on my way to the hospital will do later. Thanks

If it dosnt work I will post the individual asc files.

Originally Posted by Andrew Leigh

Hi Eric

Downloaded Winzip 14.0, the latest version, the same result. What program did you use?

Cheers
Andrew

hi,
I use IZarc to zip.

I'll post each file as asc.
Some are just rough sims.

EDIT: dump the Andrew2.asc... I was trying an idea.

Originally Posted by Andrew Leigh

Hi Eric,

thanks.

Have logged onto the yahoo group. Have found the LM393 and the MOC308x series but can't get the .sub files. Can these be created from the .txt files?

In the meantime using the LM339 as it has a .sub file but I am being stopped at the opto.

Cheers
Andrew

hi,
All the files you need are here, get them all
http://tech.groups.yahoo.com/group/L...TO%20TRIAC%20/

Originally Posted by Andrew Leigh

Hi Eric,

progress but can only get one cycle of current to the heater then it switches off?

Hey, this could be a bunch of fun and a great learning tool.

Cheers

hi,
Post your version of the asc file.
I see that you are using a LM339.???

Use Tools/Control Panel and change the plot background to white so that its easier to read.

Originally Posted by Andrew Leigh

Hi,

will do.

In the files I could only find the LM339.asy file , got it "working" and in my excitement forgot to go back and track down LM393A. Will go and find it, correct the background and post.

Cheers

hi,
It works for me.??

Originally Posted by Andrew Leigh

Hi Eric,

this puppy is frying my brain. I have;

- Altered the resistances at the pots and brought them to the levels for -8°C (the evaporator temp where the thermistor is located. I increased the two 5V setting in the Thermistor model to 6.5V the OFF temp for 0°C. Is this correct?

- Inserted the Triac as per the MOC data sheet but could not find the identical one. Note how current continues to flow in the OFF period? When increasing the value of R15 from the data sheets 39R to 100k I can get the current to stop flowing on the OFF period, is this right?

- Have altered the heater resistance to 275R (the heater is 175W). The heater should draw 0.8A, the circuit is drawing about 1.15A, is the resy going into the circuitry?

I hope I am getting somewhere, I need some help please!

Cheers
Andrew

hi,
Where did you get the Triac model from... I am having problems with it.??