Adaptive Power Source For Wireless Power Transmitter

摘要

A system includes an adaptive power source, a wireless power transmitter, and a wireless power receiver. The adaptive power source supplies a supply voltage across a Universal Serial Bus (USB) connector onto the wireless power transmitter that thereby transmits energy to the wireless power receiver. The wireless power transmitter has a USB plug that is inserted into a USB port of the adaptive power source. The wireless power transmitter sends a power control command to the adaptive power source across the USB connector. The power control command determines the supply voltage to be supplied to the wireless power transmitter. If the wireless power receiver determines the power level should be adjusted, then the wireless power receiver sends a wireless control communication to the wireless power transmitter. The wireless power transmitter reads the wireless control communication and sends a power control command to set the supply voltage to a desired level.

主权项

1. A method comprising:
(a) at a first time receiving a voltage onto a wireless power transmitter, wherein the voltage is a voltage on a supply voltage conductor, and wherein the voltage is received from an adaptive power source, through a power adapter connector, through a cable, and onto the wireless power transmitter; (b) receiving a wireless control communication from a wireless power receiver onto the wireless power transmitter; (c) in response to the wireless control communication sending a power control command from the wireless power transmitter, through the cable, through the power adapter connector, and to the adaptive power source, wherein the power control command is a command to change the voltage on the supply voltage conductor; and (d) at a second time receiving onto the wireless power transmitter the voltage on the supply voltage conductor, wherein the voltage on the supply voltage conductor in (d) is different than the voltage on the supply voltage conductor in (a).