Follow-up of Using IR21531 as a simple 1 channel gate driver

After doing the above question (I'm very sorry, but it's a X-Y question), I'll try to explain better what I want I'm doing a space-saving design and I have a problem. I only have a 200V PSU and a 3.3V PSU.

The circuit will drive with PWM a LED strip, but the control signal will be of 3.3V and the MOSFET needs more than 10V to trigger. How can I get let's say 15V for driving the gate?

^{simulate this circuit – Schematic created using CircuitLab}