US Patent Application 18355870. METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION simplified abstract
Contents
METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION
Organization Name
Inventor(s)
METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18355870 titled 'METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION
Simplified Explanation
This patent application describes a wireless power transmitter that can transmit power to a wireless power receiver. The transmitter includes a controller that can determine if there is a foreign object present and a transmission part that can transmit power accordingly.
- The wireless power transmitter has a controller that can detect if there is a foreign object present.
- The controller receives a packet from the wireless power receiver that includes information about the quality factor and peak frequency.
- Based on this information, the controller determines if there is a foreign object present.
- The controller then sends a response to the wireless power receiver indicating whether a foreign object is present or not.
- The transmission part of the transmitter adjusts the power transmitted to the receiver based on the response.
- If a foreign object is detected, the transmitter sends a NAK response and transmits a lower power to the receiver.
- If no foreign object is detected, the transmitter sends an ACK response and transmits a higher power to the receiver.
Original Abstract Submitted
A wireless power transmitter for transmitting power to a wireless power receiver, including a controller configured to determine whether a foreign object is present; and a transmission part configured to transmit wireless power according to whether the foreign object is present, wherein the controller receives a foreign object detection status packet including at least one of a reference quality factor and a reference peak frequency from the wireless power receiver, and detects whether the foreign object is present based on the foreign object detection status packet, wherein the controller transmits a NAK response indicating that the foreign object is present or an ACK response indicating that the foreign object is not present to the wireless power receiver, and wherein the transmission part transmits a first power to the wireless power receiver according to the transmitted NAK response or transmits a second power greater than the first power to the wireless power receiver according to the transmitted ACK response.
