Hi, Peter

> Open the tools->SPICE and set the max timestep to at most 1/20 of the
> expected osc. period. F.ex. for 100kHz max expected osc. freq. set 5e-7
>
> This is true for any .tran analysis in any spice program I know of.

    Thanks, that did it. I am much better with digital stuff and have almost
no experience with spice simulations but maybe SwitchCad will change that.
It is a pleasure to use and the price is right.

    Do you have any recomendations for books about spice simulators ?

Best regards,
Alexandre Guimaraes

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