1, definition: from the definition, PD interface is a power transmission protocol, and Type-C interface is a connector standard. PD protocol defines how to exchange power between devices quickly and efficiently, and Type-C defines new USB interface shapes and connection specifications.
2. Usage scenario: In usage scenario, PD interface is mainly used to provide fast charging function for electronic devices, such as mobile phones, notebook computers, game consoles, televisions, etc. Type-C interface is more widely used to connect various devices, including mobile phones, computers, monitors, speakers and so on.
3. Compatibility: From the perspective of compatibility, although the Type-C interface can physically support the PD protocol, not all Type-C interfaces support the PD protocol. When choosing to use PD for fast charging, it is necessary to ensure that the Type-C data cable used supports PD protocol.