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Simulation Speed LTSPICE

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ArnaudMARTIN

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Hello,

I have a problem with a amplifier Class D simulation.
It works, but the simulation freeze during a long time after few µs. I see a simulation speed at fS/s .

Could you help me ?

Have a good day,

Arnaud MARTIN
 

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  • classeD.zip
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You are probably fighting transient convergence challenges.
Hard switching nodes fed back to slow circuitry is one such.
Use of too-ideal behavioral sources and active devices with
their parasitics neglected, can also be trouble.

I like Euler method because it is more "self-damping" than
TRAP or TRAPGEAR.
 

Hello,
@stenzer et @dick_freebird Thank you for your answers.
I change the solver to "alternate",and it fix the problem of freeze. I don-t understood the difference between both solver but it works.

@dick_freebird How can i choose a euler method in ltspice ?

Have a good day.
 

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