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Registered Member #3343
Joined: Thu Oct 21 2010, 04:06PM
Location: Toronto
Posts: 311
Hi All !
I am working in the above circuit for ignition of sodium/ mercuty vapour light bulbs. The circuit above works well, BUT need see the waveforms, peak voltages and currents, pulse duration, etc
I am thinking to use a software for circuit simulation. I do not know any soft for that .
The soft as to be: computer resident ( not web or on line placed), operate with windows XP, Hability to solve circuits with 7-15 components, as the abocve circuit, Simulates diodes, SCR, TRIACS, Sidacs, Diacs, transformers. ... and easy to read instructions. If it is free it will be very nice
thanks
Newton
Ps I have used before EDSA, ETAP, for power circuit analyses.
Registered Member #1792
Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
LTSpice probably meets your needs. It's free, it can do transient simulation which is probably what you need.
Some of the components you want to simulate (Diode, SCR, Triac, Sidac, Diac) you'll need models for. Diodes you can generally get models from the vendor or by googling around, or you can use a simple idealized model depending on accuracy that you need. For the other components I don't know if they are built in to LTSpice but you can probably find some models on the Yahoo group:
Registered Member #72
Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659
LTSpice is basically good, but its GUI is so ar$e-about-face that it takes a real effort of will to drive. However, I'm forcing myself to convert to it from the so-much-smoother Simetrix, because the latter's free version is limited to 150 nodes, so one op-amp will simulate but two generally won't. For your number of components, that may not be an issue.
Registered Member #1792
Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
Yeah, LTSpice does have a nonstandard UI, but once I learned the interface which didn't take too long I found it very efficient and quick to use. I still use it from time to time when I just want to do a simple simulation, it's hard to beat it for efficiency.
Something like Simetrix, or the free version or OrCAD will be more powerful, but you have limitations on the free version. And personally I found OrCAD somewhat complex, not good for just running a quick simulation.
Registered Member #3343
Joined: Thu Oct 21 2010, 04:06PM
Location: Toronto
Posts: 311
Sulaiman:
Thanks for you advice. The real purpose is produce sparks in a 1-2mm gap, The lamp will be not used here. Load is free air spark How to model the spark in a 1-2 mm air gap? What software ? Thanks
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Any good software fom simolation of transients ?
