Isolated High Voltage Amplifier Idea

Test laboratory of our factory asked me to design an isolated high voltage amplifier. Here are the requirements:

• The circuit will be built with transistors and passive components in the lab. (No IC usage - because we don't have any and can't buy)


• The circuit will be supplied from lab power supply (Vs < 40VDC).


• The input signal will be applied from the function generator (1Vrms sine - frequency may vary between 10kHz and 100kHz).


• The output will be isolated and have a peak value of 1.5kV.


• Output power will be 100mW max.

Here's my design on paper:

^{simulate this circuit – Schematic created using CircuitLab}

As you can see, the circuit is a simple Class AB amplifier with inductive load. Since the voltage gain is 10V/V, the voltage across the primary will be 10Vrms, so the output will be 1kVrms = 1.5kVpk.

Is there any problem with this circuit? What can you suggest?