Measuring 500V DC burst using CRO

[Nikhil N]

I have to check whether my circuit producing a burst of 500V in CRO. How can I check whether CRO is capable of handling this high voltage? I have heard about HV probe, how to check the probe that I have is of HV type?

 

[Tom.G]

If it doesn't look something like this it isn't High Voltage.

 

[berkeman]

I have to check whether my circuit producing a burst of 500V in CRO. How can I check whether CRO is capable of handling this high voltage? I have heard about HV probe, how to check the probe that I have is of HV type?

You should be able to use a 100:1 'scope probe for that. Read through this tutorial and see what you can find online to buy:

http://www.radio-electronics.com/info/t_and_m/oscilloscope/oscilloscope-probes.php

If it doesn't look something like this it isn't High Voltage.
View attachment 203398

Depends on the voltage. Over 10kV or so, that's true. For 500V, the 100:1 probe can be enough. We use 100:1 probes to monitor our CE Mark test waveforms (Surge to 6kV, Burst to 4kV) routinely.

 

[Windadct]

How accurate do you need this to be? You could build a voltage divider and probably get to about 1%. Due to cost - a simple voltage divider is used for voltage sensing in a lot of power converters in this V range,