Cam i control boost converter without load.?
A boost converter stores energy in an inductor in the first part of the switching cycle. It releases that energy to the output capacitor in the second part of the cycle. Energy is transferred at the switching frequency and this becomes a power transfer.

So, a boost converter is a power regulator and doesn't regulate voltage without a feedback system that controls the duty cycle. If the load disappears the duty cycle must instantly become zero or the output voltage will continually rise until something breaks down.

Do you think that this might be happening?