I am assembling a power supply for xenon arc lamps. I use a simple welding inverter as a stable current source. I use the presented scheme.
The ignition circuit generates pulses up to 25-30 kV for a short period of time. Large currents flow in this circuit, so the use of various inductive filters increases the mass of the device. The use of diodes will be accompanied by thermal losses, so I am interested in a simple and reliable EMI filter.
To protect a powerful source, I used a suppressor 1.5KE100A, but during the first power-up, the source burned out. The operational amplifier in the current feedback circuit (in welding machine) was damaged.
Consequently, the suppressor did not perform a protective function. What could this be related to? What other ways are there to protect the output of a powerful power supply?