If you are a school or maker space group or some other thing and want 3 x BM235 multimeters before they get crushed by the Amazon warehouse crusher, leave your details down below. VERIFIABLE schools or groups ONLY. Don't be a duche and pretend you are one. https://amzn.to/2Re2Bs7
How does a high voltage differential probe work?
How is it safe?
Is it isolated?
A teardown and some reverse engineering of the Lecroy AP031 25MHz HV Differential probe. a.k.a Sapphire Instruments SI-9001
Forum: http://www.eevblog.com/forum/blog/eevblog-932-how-does-a-hv-differential-probe-work/
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
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https://www.youtube.com/watch?v=GOlgaEK2Hsk
An in-depth practical visualisation of how bypass capacitors work at both high and low frequencies.
Bulk decoupling capacitors vs bypass capacitors.
Capacitor placement and types are tested and the results examined.
How package inductance can have a large effect.
Loop area and what is means, it's impact on EMC emissions, and how currents flow in ground planes is demonstrated
Links: http://web.mst.edu/~jfan/slides/Archambeault1.pdf
Bypass capacitor tutorial: https://www.youtube.com/watch?v=BcJ6UdDx1vg
Muntzing: https://www.youtube.com/watch?v=P8MpZGjwgR0
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https://www.youtube.com/watch?v=1xicZF9glH0
Automatic AC transfer switches are pretty cool devices. A look at what they do, a practical demo, teardown, and then reverse engineering to explain how it does it.
Bonus look at how my automated home battery backup system will work.
00:00 - Automatic AC Transfer switch
02:05 - How I'm powering my home fridges from a battery
06:30 - What does an AC Transfer switch do?
09:27 - Huh? How do you do the automated battery power backup?
12:36 - Practical AC Transfer switch demo
15:57 - Teardown
18:44 - Reverse Engineering Schematic
25:46 - BONUS 2nd design teardown!
Forum: https://www.eevblog.com/forum/blog/eevblog-1500-how-an-ac-automatic-transfer-switch-works/
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https://www.youtube.com/watch?v=W1Q8CxL95_Y
Dave does some more quick basic testing of the La Gard Basic digital safe lock, for any obvious power line exploits.
Part 1 is here: https://www.youtube.com/watch?v=HxQUKAjq-7w
Forum: http://www.eevblog.com/forum/blog/eevblog-762-how-secure-are-electronic-safe-locks/
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https://www.youtube.com/watch?v=mdnHHNeesPE
Think your multimeter doesn't have inbuilt temperature measurement? Think again!
Dave shows you a trick to measure ambient temperature with your multimeter without a temperature probe.
Followup video testing in the fridge: https://www.youtube.com/watch?v=48J0m3dvpgA
Forum:
Subscribe on Odysee: https://odysee.com/@eevblog:7
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Buy anything through that link and Dave gets a commission at no cost to you.
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#ElectronicsCreators #Multimeter #Tip
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https://www.youtube.com/watch?v=57VuCgb6Udw
What happens when you feed a frequency counter clock up it's own clacker?
Agilent 53131A Schematics: http://cp.literature.agilent.com/litweb/pdf/5989-6307EN.pdf
http://www.thinksrs.com/products/PRS10.htm
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https://www.youtube.com/watch?v=ru7pjXorejE