If you want keywords, I could find a fair few by using “PD charger module” and then checking the pictures for visible inductors. One small exception is LiIon chargers with USB-C PD input ...

as he’s modified his Thinkpad T440s to take a USB charger instead of its proprietary Lenovo square-plug part. (Video, embedded below.) At its heart is a USB-PD emulator module that does all the ...