How to find model with Spice Simulation
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doubledutch1962 1 year ago
Apologies newbie question, I did search for an answer but I can't find one. * Want to simulate a circuit with a timer, something similar to 74HC161 * Search in EELib - I can't find any counters * Open library: Engine EasyEDA, Types: Spice Symbol; Search for Counter * Find a counter produced by k9sjwalter (thanks!) which has a little 's' in the IC picture and place the counter on my circuit and connect it * I start simulation but get an Error: "There are some parts haven't spice model,  please use EElib and "Spice Symol" at Libraries of "Simulation" mode or you can assign the spice model for them" I guess I understand what's wrong (this part hasn't got a spice model) but: 1. Do I follow the correct process to find components? 2. How do I identify components in the search function which will simulate (there are about 30 counters, I would like to avoid having to wire them up one by one) Thanks in advance!
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andyfierman 1 year ago
Hi, Yes, sorry but searching for spice symbols is still not as easy as it should be. First, please read my string of bug reports: [https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-1-e37722e3413e430e919287e698958751](https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-1-e37722e3413e430e919287e698958751) [https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-2-cb430c46aa064ce98a9f3c616b730e63](https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-2-cb430c46aa064ce98a9f3c616b730e63) [https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-3-a14bffeaa93d4aea92956bcd2078f8c1](https://easyeda.com/forum/topic/Spice-model-search-results-are-still-incomplete-3-a14bffeaa93d4aea92956bcd2078f8c1) and note how the tabs in the Search Libraries tool have changed since EasyEDA V6.2 then please read (3) in (2) in: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a) I will try to update this document to the latest GUI changes. I am also trying to finish a big library that has just the sorts of logic devices you are asking about but this is still a couple of weeks away from being releasable.
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doubledutch1962 1 year ago
Thank you for your prompt reply and I will read all your documents. But you confirm that the process I follow is correct?
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andyfierman 1 year ago
"But you confirm that the process I follow is correct?" No. That is not what I have said. But it is why I said you must read (3) in (2) in: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)
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Saliterman 5 months ago
@andyfierman Hi Andy, Did you ever finish and release the library you mentioned. Steve [email protected]
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andyfierman 5 months ago
Most of the library is available under EasyEDA - Spice Symbols - Digital 74HC. There should be some 4000 series parts too but for some reason they aren't showing up. You don't need to explicitly place a power supply for these devices unless you want to run them at a voltage other than +5V.
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doubledutch1962 4 months ago
After 10 months: I'm still confused about the original question: how do I discover from the Parts List that a part has a Spice Simulation model? E.g. the one I was playing with today is an TL072 OpAmp - there are many but the only way I can figure out which work in simulations are to try them all in the circuit. What is the better way?
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DrSavitaGaur 4 months ago
I start simulation but get an Error: * "There are some parts haven't spice model,  please use EElib and "Spice Symol" at Libraries of "Simulation" mode or you can assign the spice model for them" Similar problem faced
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DrSavitaGaur 4 months ago
This is for MC34119
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andyfierman 4 months ago
@doubledutch1962, @DrSavitaGaur, Answers to your questions are given in the Simulation Tutorial: [https://docs.easyeda.com/en/Simulation/Headings/index.html](https://docs.easyeda.com/en/Simulation/Headings/index.html)
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