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Simulate a SPDT relay
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gusisin 9 months ago
I am sure this has come up before but I am totally lost, how do I simulate a simple SPDT relay ?
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andyfierman 9 months ago
Please see this topic: [https://easyeda\.com/forum/topic/Switching\_during\_simulation\-LHhCAyUge](https://easyeda.com/forum/topic/Switching_during_simulation-LHhCAyUge)<br> <br> then post back if you need more help. The Simulation Tutorial (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)<br> <br> will show you how to find simulatable parts and there are examples of how to create and understand the results from simulations using voltage controlled switches. Applying the filters in the left area of the Spice Symbol Library search tool will help you find spice models of a variety of relays: RELAY\_SPDT\_12V\_EE RELAY\_DPDT\_9V\_EE and similar.
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andyfierman 9 months ago
A lot depends on how accurately you wish to simulate the relay action. Do you want to simulate an voltage controlled idealised SPDT switch or do you need a realistic simulation of the behaviour of a real electromechanical relay?
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andyfierman 9 months ago
Have a look at this sim (which you will not be able to run until I fix it for LTspice): [https://oshwlab\.com/example/How\_to\_simulate\_a\_DPDT\_switch\-Wgs2CbLlH](https://oshwlab.com/example/How_to_simulate_a_DPDT_switch-Wgs2CbLlH)
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