Download 6114.Output pulses after applying power through FETs

Here is the schematic of my circuit. With your suggestion, I tested to see if the LM5113 is burned. The
figure below showed the waveforms at the output of the gate drive
This was measured at the HO and LO pin of the gate drive. As you can see the outputs were good. At this
point, I have yet to supply 24V to the FETs
Seeing as the pulses were good, I applied 24V to the FETs to see if I get around 15V DC output at the
load resistor. The circuit was working for a little bit then the DC output signal was lost. I then
disconnected the 24V from the FETs and went back to check the circuit to see what went wrong.
I realized that the output pulses of the gate drive changed. The figure below showed the new output
pulses when HS was connected to ground
This figure showed the output pulses when HS was connected to the FETs
Please note that I measured these waveforms without supplying 24V to the FETs. In other word, the
drain of Q1 was left open.