kender
Advanced Member level 4
nanosecond pulse generator
Colleagues,
Could anyone suggest a schematics or a reference for a high voltage pulse generator? I need a 500V pulse 10ns long or sorter. Negative spike from 500V to 0 and back to 500V would work. I have a schematic for an old (1977) pulser, but the SCR that's used there has been discontinued. I know how to generate a nanosecond pulse at the logic levels. But what would be a good topology for the high voltage "switch"? MOSFETs have gate capacitance that needs to be charged within a few nanoseconds. SCRs (which I, unfortunately, don't have experience with) have their own problems too.
Enlightenment will be appreciated!
- Nick
Colleagues,
Could anyone suggest a schematics or a reference for a high voltage pulse generator? I need a 500V pulse 10ns long or sorter. Negative spike from 500V to 0 and back to 500V would work. I have a schematic for an old (1977) pulser, but the SCR that's used there has been discontinued. I know how to generate a nanosecond pulse at the logic levels. But what would be a good topology for the high voltage "switch"? MOSFETs have gate capacitance that needs to be charged within a few nanoseconds. SCRs (which I, unfortunately, don't have experience with) have their own problems too.
Enlightenment will be appreciated!
- Nick