IEC 61000-4-2 L4 8kV pulse data - Page 1
Forum section: electronics / projects

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: October 13, 2021, 10:02:34 am
content: Hey AllA bit of an odd one, would anyone have the raw data for an IEC 61000-4-2 8kV pulse?I am wanting to see how a typical BBQ lighter compares to it 🙃(with the attached waveform the zap is captured across a ~1/3300 voltage divider, so the peak voltage is ~30kV while peak current is ~86A)

author: Alex Nikitin
author_rank: Super Contributor
timestamp: October 13, 2021, 10:49:13 am
content: How you can be sure the divider is at least roughly correct at the timescale used?CheersAlex

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: October 13, 2021, 11:10:44 am
content: Quote from: Alex Nikitin on October 13, 2021, 10:49:13 amYou talking parasitic/stray capacitance & inductance wise? Just after a crude measurement so worked with what I had on hand ;^)

author: Alex Nikitin
author_rank: Super Contributor
timestamp: October 13, 2021, 11:46:07 am
content: And if the error is of an order of magnitude? Or two orders?CheersAlex

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: October 13, 2021, 12:07:24 pm
content: Quote from: Alex Nikitin on October 13, 2021, 11:46:07 amAww yee?Amplitude of the zap is likely correct (since I confirmed the voltage divider ratio with a 6.5 digit DMM). Timescale wise, sure the long return lead from the BBQ zapper (and the parasitic elements of the wire wound resistors) don't help, but same lead would be present if I was to use the zapper on a DUT. So again, am after a crude measurement my dude

author: joeqsmith
author_rank: Super Contributor
timestamp: October 13, 2021, 12:42:49 pm
content: Quote from: ANTALIFE on October 13, 2021, 10:02:34 amI am not sure what you mean by raw data?At these frequencies you must be an RF guru. I've attempted to characterize a grill starter that I use to create small ESD events. Rule#1, there is no typical.If you want to see my setup, watch the first 10 minutes of this video. It's a bit crude.

author: voltsandjolts
author_rank: Unknown
timestamp: October 13, 2021, 01:44:40 pm
content: Quote from: ANTALIFE on October 13, 2021, 12:07:24 pmdivider ratio at DC!=divider ratio at 500MHz

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: October 13, 2021, 11:02:52 pm
content: Quote from: joeqsmith on October 13, 2021, 12:42:49 pmQuote from: voltsandjolts on October 13, 2021, 01:44:40 pmThanks heaps for explaining that, I see what yous mean nowBasically if I want to have a reliable reading then I would need to have a proper setup (Pellegrini target and all). In the mean time I will try and do a relative comparison when I get a hold of a calibrated ESD simulator/gun, and hopefully in the future I will be able to test out the BBQ zapper in an EMI/EMC lab

author: joeqsmith
author_rank: Super Contributor
timestamp: October 14, 2021, 12:45:05 pm
content: I think Doug Smith had made a blog about measuring ESD with a home made probe. I was not able to find it but am sure it's out there somewhere.Here are a few other articles I found that may provide some insight:https://www.edn.com/proper-oscilloscope-setup-yields-correct-esd-measurements/http://www.emceurope.org/2016/workshops/WS2A_1.pdf