LTspice and transformers

[ants]

I want to drive a capacitor with an operational amplifier. The opamp is +/-40V, 50mA and does everything I need it to. I've designed the circuit in LTspice and attached it. The circuit seems to do everything I want it to, it drives the capacitor (C_load) with +/-60V and +/- 100mA. So the load is being driven at 6Watts rms.

The problem I have is that the output from the opamp is +/-6V and +/-50mA so 0.3Watts.

As far as I know transformers are supposed to keep the same power but alter voltage and current.

What am I missing?

Thanks,

Ant.

 

[ants]

I think I worked it out. C_load and L2 form a LC circuit at resonance, so the impedance drops to 2ohms. The impedance of L1 is 6 ohms and is the load that the opamp sees.

It's funny how I can do something and not know how I did it! I'll be sure and remember for next time.