what is USB-PD agreement?
Apr 22, 2019| USB-Power Delivery (USB PD) is one of the current mainstream fast charging protocols. It is a fast charging specification developed by the USB-IF organization. . USB PD increases power delivery through USB cables and connectors, extending cable bus power in USB applications. The specification enables higher voltages and currents, delivers up to 100 watts of power, and is free to change the direction of power delivery.
The relationship between USB PD and Type-C. There are often people who talk about USB PD and Type-C, and even call the Type-C charger a PD charger. USB PD and Type-C are actually two different things.
USB PD is a fast charging protocol, while Type-C is a new interface specification. The Type-C interface supports up to 5V/3A by default, but after implementing the USB PD protocol, it can maximize the output power to 100W mentioned above. So many devices with practical Type-C interfaces now support the USB PD protocol.