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Why PSS gives OScillation to Free Running VCO without any initial condition but NOT transient ?

RFStuff over 9 years ago

Dear All,

I simulated a LC oscillator in PSS in Oscillator mode even if I have not given any initial condition (Convergence Aid).

While if I run the same oscillator in TRAN without any initial condition it never oscillates.

Could anybody please tell me what is the reason behind this ?

Kind Regards,

Parents

Andrew Beckett over 9 years ago

Shawn,

This may not be necessary if it's a linear oscillator and you can use the parameter to tell it to use the linear oscillator ic method. So I'd try that first, and then if it fails to start, set maxstep.

Regards,

Andrew.
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Andrew Beckett over 9 years ago

Shawn,

This may not be necessary if it's a linear oscillator and you can use the parameter to tell it to use the linear oscillator ic method. So I'd try that first, and then if it fails to start, set maxstep.

Regards,

Andrew.
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