Latching-relay (single and dual-coil) simulation models

[alec_t]

In connection with this other thread, I developed LTspice simulation models respectively for single and dual-coil DPDT latching relays, based on data from various datasheets. I attach the .sub and .asy files here in case anyone else might find them useful or can suggest improvements. In use, right-clicking on the symbol enables default relay parameters to be adjusted.

 

[spec]

This looks like good material for an ETO rticle Alec.

spec

 

[marshaul]

Thanks for this. This is going to come in handy right now...

 

[alec_t]

This is going to come in handy right now...

Good. Welcome to ETO!

 

[marshaul]

Is there any reason this shouldn't be compatible with LTspice XVII? It does't appear as a placeable component in the "place component" menu, after adding the .sub files to lib\sub and the .asy file to lib\sym -- although for some reason I can place it from the working directory where it resides alongside the test circuit.

In either event, LTspice gives me an "unknown subcircuit" error and won't simulate the test file. I'm not sure how to proceed since I've never added components in this fashion to LTspice.

 

[alec_t]

If you're running LTS XVII under Windows10 the files need to be in the .....User\Documents\LTspiceXVII\lib folders path.

 

[marshaul]

I didn't know that about LTspice XVII, but the problem was actually that I needed to add the SPICE directive ".include DPDT_latch_dual_coil.sub" to the example asc file.

Thanks!

 

[alec_t]

Glad you found a solution.