FreeLists / si-list / [SI-LIST] Crystal oscillator simulation in time domain by Pspice

["Sogo Hsu" <sogo.hsu@xxxxxxxxxxx>]

Hi, Gurus,

I tried to simulate a typical oscillator and investigate the start-up 
time by Pspice. The oscillator consists of an inverter and crystal. 
the crystal was modeled by it's equivalent circuit. However, we were 
unable to start up the oscillation successfully. It seems that is the 
limitation of Newton-Raphson algorithm. The algorithm ensures the 
circuit simulation can converge to solution. Accordingly, it gives up 
the oscillation solution to avoid 'diverge' issue. How can I solve 
this issue and bypass the converge requirement to achieve 
oscillation? Thank you for your comments in advance.

Sogo Hsu Ph. D.
Foxconn

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