iphone 13 fast charger
according to the writing on the back, my (off brand) charger outputs 5V@3A, 9V@2.77A, and 12V@2.08A all at the same time. how is this possible
iPhone 13
Question marked as
See the information in https://www.asme.org/topics-resources/content/explore-the-basics-of-usb-c-and-usb-power-delivery including the following:
The USB Power Delivery requires conforming equipment to initially deliver 5 V at a maximum of 900 mA to the load to prevent such damage. Communication between the load and the power source can then establish a higher maximum load current and greater operating voltage.