Project of simple electromagnetic field transmitter 100Hz-1MHz, 10-100w.

Job to do: Create project of simple electromagnetic field transmitter that will be used for medical purpose. It will produce desired electromagnetic field that will operate on human stomach and parasites inside. I already got one which works great, just need stronger one. It will use external power supply: Power supply: 19.5V DC 11.8A It will use external device, which will produce desired frequencies: Input signal: 1-60V, 1-12mA, 100Hz-1MHz, square wave Device should have adjustable power of 10-100W inside magnetic coil (or at least 10-80W) and operate with frequency range of 100Hz-1MHz (or at least 300Hz-600kHz). Basically device must produce electromagnetic field with frequencies set by input signal, and strengthen it with power supply. It should be as effective as possible, to produce very little heat. It shouldn’t use very expensive or hardly available parts (they should be available on Aliexpress). Magnetic coil should be 4-10 meters of 40 wire flat cable AWG28, plugged in by 40pin IDC socket. Device inputs and outputs: power on diode, power regulation switch, magnetic coil type switch, power supply input, signal input, magnetic coil 40 pin AWG28 cable output.