I have a simple circuit with a MOC and Snubberless TRIAC.
I am using the ST Snubberless Library for my simulation.
I cannot understand why the TRIAC does not turn on in the negative half cycle, even though there is a negative gate current and negative terminal voltage.
Perhaps I am burnt out of thinking about this problem for too long, a second eye would be appreciated. The model file itself could be the problem, but again, I am not sure.
The green graph is the gate current. The orange graph is the voltage across the load. The cyan graph is the voltage over MT2 and MT1 (VAC and Vload).