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Simulating a few oscillators together

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okiiatama

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Hi,

I am doing a design involving 3 oscillators. I simulate it using Cadence ADE. I faced a problem in simulating it probably due to my stimulus setting.

Below is the error from cadence:

Fatal error found by spectre during topology check.
the following branches form a rigid branches(short) when added to the circuit.
V27:p (from vdd! to 0)
V26:p (from vdd! to 0)

Can anybody give me some advices about it?
What should i take care of the stimulus?


thanks!!
 

you have two independent voltage sources connected to vdd!, it's wrong because this form a short circuit, of course. so you need delete a voltage source
 

oopss...that's my stupid mistake.
Thanks for your advice!!
 

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