Integrating circuit vs GSL integration
Integrator circuit vs QAG integration routine.
input voltage:
V0 (1 -
e-t/τ1)
e-t/τ2
The
recalculation of the integral via QAG for each time t is a bit of
overkill, but the agreement with the output voltage from the
integrator circuit is thereby made clear. The slight difference is
due to a combination of the finite timestep for the circuit
simulation, the op-amp's behavior, and the relative error in the
QAG integrator.
IMPORTANT!!!:
The integrand-setup model 'CircuitIntegrand' (or a duplicate) must
be run before using GSL integration routines within a larger
Modelica model (like this one). (Alternatively, one could edit
integrand.c directly and then compile "by hand" in a command
window:
gcc
-fPIC -c integrand.c integration_mi.c
gcc
-shared integration.o integration_mi.o -o libgsl_integration_MI.so
[.dll for windows])
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.GNU_ScientificLibrary.Examples.integration.IntegratingCircuit.IntegratingCircuit
CircuitParams