Geoffrey_Coram
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I'm not really sure what you're trying to do. Do you want to force Q1=Q2 for simulation? Do you want to build a circuit that will drive Q2 to the same value as Q1? What sets the initial condition? Usually in Spice, Q1(0)=Q2(0) = 0, although I guess some simulators put a GMIN to ground on the node between the caps, to provide a dc path to ground. Physically, I don't think you can measure how much charge is on the capacitor, other than by integrating the current from a known initial condition.
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