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Power as input for behavioural source in a transient Spectre simulation

ChrisEAS

Hi there.

During a transient simulation in Spectre, I would like convert the device power to a voltage signal. I tried using a behavioural source as follows:

E1 (1 0) bsource v="M1:pwr"

Unfortunately, this gets me the error message: Unexpected ternary operator ":"

Is there a way to achieve what I am trying to do?

Thanks, Chris 

  • You can't use operating point parameters or output parameters in the expressions (see "spectre -h bsource"). You could calculate the power by the current through the device multiplied by the voltage across it (source-drain) assuming that the current through the gate or bulk is small.

    Regards,

    Andrew.

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