So I have this line driver using an IR2110 to amplify a square function tuned for a specific frequency. Its used to cause oscillations in an LC circuit (pulsed at the same frequency, 1/root LC). Experimentally though I can't find that resonance frequency. As I go above the theoretical resonance freuqency, Vinductor also increases 2-3kHz then it has a sudden fall. (I think this is because the Line Driver is not fit to go that much above its tuned frequency) If I take this same circuit, attach a resistor onto it and pulse it using a function generator, there is a visible peak of V inductor...that's not visible when using the line driver in between. What's going on here when I use the line driver?