Wireless power transmitters and receivers, and method for permitting a wireless power receiver by a wireless power transmitter

• US 10,790,694 B2
• Filed: 04/15/2019
• Issued: 09/29/2020
• Est. Priority Date: 10/19/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwon, Hyuk-Choon, Kim, Ho-Dong, Lee, Kyung-Woo, Byun, Kang-Ho, Jung, Hee-Won
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Omar, Ahmed H
• Application Number:
  US16/384,419
• Publication Number:
  US 20190245372A1
• Time in Patent Office: 533 Days
• Field of Search: 320108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source

Abstract

An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver.

Claims

1. A wireless power receiver for receiving charging power from a wireless power transmitter, the wireless power receiver comprising:

a display;

a power receiving circuit configured to wirelessly receive power from the wireless power transmitter;

a communication unit; and

a controller configured to;

receive, via the communication unit, the a first control signal, including permission information indicating that charging the wireless power receiver is permitted with waiting time from the wireless power transmitter,

control the display to display a message indicating that a standby for charging the wireless power receiver is required,

receive a user input regarding the displayed message,

in response to receiving the user input, generate a reporting signal including standby information indicating whether the wireless power receiver is on standby for charging, and

control the communication unit to transmit the reporting signal to the wireless power transmitter.

2. The wireless power receiver of claim 1, wherein the permission information indicates at least one of a standby state when the wireless power transmitter does not have an available power and permission for the wireless power receiver to begin charging if the wireless power transmitter has the available power.

3. The wireless power receiver of claim 1, wherein the reporting signal includes standby-on information if standby for charging is selected by the user input regarding the displayed message.

4. The wireless power receiver of claim 1, wherein a communication connection between the wireless power transmitter and the wireless power receiver is maintained if standby for charging is selected by the user input regarding the displayed message.

5. The wireless power receiver of claim 1, wherein the reporting signal includes standby-off information if standby for charging is not selected by the user input regarding the displayed message.

6. The wireless power receiver of claim 1, wherein the reporting signal includes standby-off information if standby for charging is not selected within a predetermined period of time regarding the displayed message.

7. The wireless power receiver of claim 1, wherein a communication connection between the wireless power transmitter and the wireless power receiver is terminated if standby for charging is not selected by the user input regarding the displayed message.

8. The wireless power receiver of claim 1, wherein the first control signal comprises a Power Receiving Unit (PRU) control signal.

9. A method of a wireless power receiver for receiving charging power from a wireless power transmitter, the method comprising:

wirelessly receiving power from the wireless power transmitter;

receiving, from the wireless power transmitter, a first control signal including permission information indicating that charging the wireless power receiver is permitted with waiting time;

displaying a message indicating that a standby for charging the wireless power receiver is required;

receiving a user input regarding the displayed message;

in response to receiving the user input, generating a reporting signal including standby information indicating whether the wireless power receiver is on standby for charging; and

transmitting the reporting signal to the wireless power transmitter.

10. The method of claim 9, wherein the permission information indicates at least one of a standby state when the wireless power transmitter does not have an available power and permission for the wireless power receiver to begin charging if the wireless power transmitter has the available power.

11. The method of claim 9, wherein the reporting signal includes standby-on information if standby for charging is selected by the user input regarding the displayed message.

12. The method of claim 9, wherein a communication connection between the wireless power transmitter and the wireless power receiver is maintained if standby for charging is selected by the user input regarding the displayed message.

13. The method of claim 9, wherein the reporting signal includes standby-off information if standby for charging is not selected by the user input regarding the displayed message.

14. The method of claim 9, wherein the reporting signal includes standby-off information if standby for charging is not selected within a predetermined period of time regarding the displayed message.

15. The method of claim 9, wherein a communication connection between the wireless power transmitter and the wireless power receiver is terminated if standby for charging is not selected by the user input regarding the displayed message.

16. The method of claim 9, wherein the first control signal comprises a Power Receiving Unit (PRU) control signal.