Power Bank - Keep Alive With Arduino Nano in Deep Sleep : 6 Steps - Instructables
Programmable Industrial 4-port USB Switch for USB-C | Acroname
Power Bank Keep-Alive based on 555 Timer (SMD) - Eplop Electronics
yet another) Power Bank Stay-On Circuit
Power Bank "Keep-Alive" - Hackster.io
USBの波形を測定!D+とD-をロジックアナライザで解析してみた
Power Bank Keep-Alive based on 555 Timer - Eplop Electronics
USB Battery Pack Keep-Alive Load
Power Bank Keep-Alive based on 555 Timer - Eplop Electronics
PJRC (Teensy) Forum
Powerbank keep-alive to power low current 5V devices | Audio Science Review (ASR) Forum
USB battery pack keep-alive load
Battery Pack Load
Tindie Blog | Keep Your USB Power Bank Alive !
GitHub - ZakKemble/SmartPowerBankKeepAlive: Keep USB power banks alive when powering low-power projects with this pulsed constant current sink USB module.