Precautions should be taken to account for unintentional connection of unqualified power supplies. A USB PD source which is fully compliant with the USB PD protocol does not imply that it is safe, or appropriate for every application. However, the quality of USB PD sources varies greatly between manufacturers, especially from a user safety perspective.
That is, one USB PD source can power a wide range of devices, each potentially from a different manufacturer. USB PD, as envisioned by the USB Implementers Forum (USB-IF), permits a high degree of compatibility between generic USB PD sources and consumer devices. This is attractive from both engineering and industrial design viewpoints. Perhaps the largest draw of USB PD is the use of the USB Type-C connector, which consolidates high speed data (via USB 3.0-3.2) and power (via USB PD) into a single connection. Download PDF Introduction to USB Power Deliveryįor many good reasons, USB Power Delivery (PD) adoption continues to grow throughout the electronics industry.
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