4s flying capacitor active balancer testing
It works, but the touch switch is problematic and unnecessary.
Julian’s electronics postbag #158 – balance, measure, boost
Battery related stuff from AliExpress https://www.aliexpress.com/item/1005004352468732.html https://www.aliexpress.com/item/32844130457.html https://www.aliexpress.com/item/1005001339542680.html h
Charge control relay module cd63l from icstation.com
Testing this battery charge/discharge control module in battery charge mode. https://www.icstation.com/voltage-protector-disconnect-switch-with-display-voltage-protection-module-digital-over-discharg
Build a massive usb power bank
This USB power bank has 28 lithium ion cells all connected in parallel. Total capacity is 36,400 mAh or 131…
Anatomy of a buck converter – back feed
Place a voltage source at the output of a buck converter and it can feed power back to the input.
Cheap wireless microphones – awful audio?
The audio quality of these cheap wireless microphones isn't wonderful.
What’s in a wireless microphone?
The electronic components found inside an $8 wireless microphone set.