Author Topic: Video suggestion: Mains battery units and HF damage to capacitive mains psus  (Read 1967 times)

0 Members and 1 Guest are viewing this topic.

Offline PsiTopic starter

  • Super Contributor
  • ***
  • Posts: 10087
  • Country: nz
"Matthias random stuff" on YouTube did a video showing how his large circular saw would cause his mains battery bank to go unstable and output bursts of 5-7khz which blew up another device he had connected which used a capacitive mains psu.

Might make a cool video to try this on one of Dave's mains battery units and, if they also have the issue, build a little mains capacitive PSU to show how they will overcurrent themselves when given 7khz instead of 50hz.
I imagine the zener pops from overcurrent, goes open circuit, and then there's no more voltage regulation so the low voltage mcu/circuit gets like 20mA 300V instead of 20mA 5V  :-DD.

« Last Edit: November 23, 2022, 07:37:23 am by Psi »
Greek letter 'Psi' (not Pounds per Square Inch)

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo