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

RFStuff

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
  • Dear Andrew,

    Thanks a lot ! I am using IC616-ISR14.
    So, by running transient ( with the IC set as suggested by you),can I know the Initial Conditions ( i.e. the capacitor voltage and inductor current) of the oscillator which leads to oscillation ?
Reply
  • Dear Andrew,

    Thanks a lot ! I am using IC616-ISR14.
    So, by running transient ( with the IC set as suggested by you),can I know the Initial Conditions ( i.e. the capacitor voltage and inductor current) of the oscillator which leads to oscillation ?
Children
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