Hi,
You correctly said, you need high frequency.
but to get "high current" you need to have low impedance.
For the capacitors this is OK.
But what about the left coil? If it is acting like a signal generator, then draw it like a signal generator (you say PWM). Maybe with it´s behavioral serial and parallel impedances.
AND: what about the transformer? To get high current (AC) on the primary side, there needs to be high current on the secondary side, too.
A transformer isn´t just a coil. A transformer "reflects" the secodary current to the primary side and vice versa.
A transformer with open secondary side:
Has a rather huge impedance due to it´s rather huge inductance: it´s self inductance
Thus you can´t push high currents through an OPEN transformer.
But there is the coupling to the secondary. It is in parallel to the self inductance.
So if you want high current you need to "close" the secondary loop.
In extreme case you short circuit the secondary side.
Then you get a relatively small inductance: the coupling inductance, or leakage inductance.
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So what you have drawn is not realistic. You need to investigate for more details.
(Signal generation side, as well as secondary transformer side, and all coil and transformer internals)
Klaus