Hi, Guys,

How to set gear or trapzoid in ADE using SpectreD simulator?


Thanks
Yawei

To answer your first posting in this thread, hit the "Options" form at the bottom of the relevant analysis (e.g. tran, pss, qpss, envlp) and find the "method" parameter and set it to gear2only or traponly. There are some other options, but these are not commonly used. See Ken's book for more details - or read the manual.

For the second question, the envmethod allows you to control the integration method for the curve used to fit the envelope points - it is a similar integration method which allows control over spacing of the envelope sample points (where each sample point is effectively a cycle; within the cycle, method controls the integration method used for timestep control).

So envmethod controls the envelope, method controls timestep.

Regards,

Andrew.