Check out bigclive on YouTube, he takes apart lots of electronics and breaks down the circuits. He investigated lots of cheaper, dodgier stuff too. Like lamps with usb ports that are mains voltage when the lamp is plugged in to recharge. Fun times.
Or electroboom if you want to see what happens when you lack care around those same electronics
henfredemars@infosec.pub 1 year ago
There’s a whole protocol for talking to supported devices so they can negotiate power delivery.
refurbishedrefurbisher@lemmy.sdf.org 1 year ago
That can be done with a single chip. What’s actually complicated here is the switch-mode power supply itself.