High Voltage Probe

[TXRX]

Hi,
I need to measure a pulse of high voltage of 1300V at width of 100nSec on a scope.

Do you have recommendation for high voltage probe ?

Thanks,

 

[danadakk]

If you google "DIY HV Probe" or "DIY high voltage probe" a number of
possibilities.

Your 100 nsec requires a significantly higher BW if you are trying to get timing info.

Above some possibilities.

Some insight into selection -

https://download.tek.com/document/ABCs%20of%20Probes%2060W-6053-15.pdf

Regards, Dana.

 

[dick_freebird]

Probably have to start with some idea of acceptable tip loading - 1M is over a milliamp, can you go lower-Z in pursuit of BW or will DC accuracy force you to accept worse?

Might think about a capacitor divider and a regular 1M/7pF probe to get better edges but still Heisenberg wants you to look at the effects of trying to measure, on what's being measured.

 

[FvM]

If the measurement is single ended, I would start the search with off-the-shelf 100:1 probes, e.g. PMK PHV1000, 50 MOhm/7.5 pF input impedance and up to 4 kV peak voltage rating. I don't hear a preference for DIY in the original post.