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I have the following assignment question

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The differential terms all contain the output voltage in differential forms. My first thought was to then implement op-amp as integrators in each stage since Vx would be related to an integral form of Vin, but I am still stuck. I get that the output of the first op-amp will produce a first degree differential term as the output which if we connect to the second op-amp, we'll get a 2nd degree differential term. I am not sure however, if this is the right way.

Also, how do I get the bVx term here? For the cVi term, it would be a simple scaling factor c, which can just be a simple voltage amplifier. But how do I get the LHS in this equation? Help appreciated, thanks

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  • \$\begingroup\$ State variable biquad filter may work. \$\endgroup\$
    – RussellH
    Sep 19, 2023 at 22:21

1 Answer 1

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As example, here is a Van der Pol oscillator.

enter image description here

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