generate parabolar current in spice

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ynhe

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How to generate parabolar current in spice?
I tried to supply a sawtooth voltage across a inductance,the current is parabolar,but how to deal with the DC work point?If select a small resistence,the dc
current will very large.When select a large resistence,the wave will be influenced

Thanks!
 

You can use Voltage Controlled Current Source - VCCS, with polynomial coefficients P0=0, P1=0 and P2=1
 

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    ynhe

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