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  3. different current through two series resistors

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different current through two series resistors

Rezaee
Rezaee over 13 years ago

As shown in the picture, the current through two series resistors are different !!!

What is the problem? How I can solve this?

Thank you in advance

 

 

 

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  • Andrew Beckett
    Andrew Beckett over 13 years ago

    In general getting femto-amp accuracy from the simulator is unlikely, unless you've gone out of your way. The default value of iabstol is 1e-12 (i.e. a pA), so you would not expect accuracy of currents significantly less than that. If you really care about currents that small, you could always tighten iabstol.

    Also check if other things are connected to this node by name (check the resulting netlist). Also check the presistor to see if it's a schematic or just a primitive instance in the netlist - maybe there's a path to ground inside the subckt.

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 13 years ago

    In general getting femto-amp accuracy from the simulator is unlikely, unless you've gone out of your way. The default value of iabstol is 1e-12 (i.e. a pA), so you would not expect accuracy of currents significantly less than that. If you really care about currents that small, you could always tighten iabstol.

    Also check if other things are connected to this node by name (check the resulting netlist). Also check the presistor to see if it's a schematic or just a primitive instance in the netlist - maybe there's a path to ground inside the subckt.

    Andrew.

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