I have been trying to model a saturable inductor so as to make a magnetic pulse compression circuit, but have been coming up against a number of barriers. To make it saturate, I have to use the magnetic core and coreless coil, which is fine. I took a BH loop of the core I want to use, input points into the data for the magnetic core, then I the appropriate number of turns on my coreless coil. I have the MMF pins of the coreless coil running to make a circuit with the magnetic core, and the current pins are implemented into the main circuit. Our main circuit has 2 current paths, one through C1, L1, and C2, and the other through C1, L1, L2, and R1 (where C1 and C2 are of equal capacitance, L1 is unsaturable, L2 is the modelled saturable inductor, and R1 is of a negligibly small resistance).
When I hood this thing up and use an initial charge on C1, all I get is ringing between C1 and C2 through L1, with almost no current in the second loop. We are not sure if we are setting this circuit up incorrectly, but the impedance of our modelled element seems to be much higher than the 2.4 mH which the real core we are using to create the model. I wonder if there is some trick to what part of the BH loop should be used in modelling the magnetic core. If anyone works with these more regularly, the manual does not give enough detail to get me through this. Thanks for any help!
