WIRELESS POWER SUPPLY SCHEME CAPABLE OF DYNAMICALLY ADJUSTING OUTPUT POWER OF WIRELESS POWER TRANSMITTER ACCORDING TO VOLTAGE/CURRENT/POWER INFORMATION OF PORTABLE ELECTRONIC DEVICE TO BE CHARGED

• US 20150214748A1
• Filed: 01/22/2015
• Published: 07/30/2015
• Est. Priority Date: 01/24/2014
• Status: Abandoned Application

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Chen, Pi-Fen, Hsu, Yen-Hsun, Lin, Hung-Chih
• Application Number:
  US14/602,280
• Publication Number:
  US 20150214748A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• 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

Abstract

A wireless power supplying system includes a wireless power transmitter and a portable electronic device. The wireless power transmitter is arranged for supplying an output power via wireless communication. The portable electronic device is electrically coupled to the wireless power transmitter and used for transmitting at least one of voltage/current/power information associated with the portable electronic device from the portable electronic device back to the wireless power transmitter, so as to make the wireless power transmitter adjust and supply the output power according to the at least one of voltage/current/power information associated with the portable electronic device.

Claims

1. A wireless power supplying system, comprising:

a wireless power transmitter, for supplying an output power via wireless communication; and

a portable electronic device, electrically coupled to the wireless power transmitter, for transmitting at least one of voltage/current/power information associated with the portable electronic device from the portable electronic device back to the wireless power transmitter, so as to make the wireless power transmitter adjust and supply the output power according to the at least one of voltage/current/power information associated with the portable electronic device.

2. The wireless power supplying system of claim 1, wherein the portable electronic device comprises a wireless power receiver for receiving the output power of the wireless power transmitter and a battery coupled to the wireless power receiver;

and, the at least one of voltage/current/power information transmitted by the portable electronic device is associated with at least one of the wireless power transmitter and the battery.

3. The wireless power supplying system of claim 2, wherein the portable electronic device further comprises a charger coupled between the wireless power receiver and the battery;

and, the at least one of voltage/current/power information transmitted by the portable electronic device is associated with at least one of the wireless power transmitter, the charger, and the battery.

4. A method applied to a portable electronic device, comprising:

receiving an output power of a wireless power transmitter via wireless communication;

transmitting at least one of voltage/current/power information associated with the portable electronic device from the portable electronic device back to the wireless power transmitter, so as to make the wireless power transmitter adjust and supply the output power according to the at least one of voltage/current/power information associated with the portable electronic device.

5. The method of claim 4, wherein the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of a wireless power receiver and a battery respectively included within the portable electronic device.

6. The method of claim 5, wherein the portable electronic device further comprises a charger, and the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of the wireless power receiver, the charger, and the battery.

7. A method applied to a wireless power transmitter of a wireless power supplying system, comprising:

receiving at least one of voltage/current/power information from a portable electronic device sent back to the wireless power transmitter, the at least one of voltage/current/power information is associated with the portable electronic device; and

adjusting and supplying an output power of the wireless power transmitter according to the at least one of voltage/current/power information.

8. The method of claim 7, wherein the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of a wireless power receiver and a battery respectively included within the portable electronic device.

9. The method of claim 8, wherein the portable electronic device further comprises a charger, and the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of the wireless power receiver, the charger, and the battery.

10. A portable electronic device, comprising:

a wireless power receiver, for receiving an output power of a wireless power transmitter via wireless communication; and

a battery, coupled to the wireless power receiver;

wherein the wireless power receiver is arranged for transmitting at least one of voltage/current/power information associated with the portable electronic device from the wireless power receiver back to the wireless power transmitter, so as to make the wireless power transmitter adjust and supply the output power according to the at least one of voltage/current/power information.

11. The portable electronic device of claim 10, wherein the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of a wireless power receiver and a battery respectively included within the portable electronic device.

12. The portable electronic device of claim 11, wherein the portable electronic device further comprises a charger, and the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of the wireless power receiver, the charger, and the battery.

13. A wireless power transmitter of a wireless power supplying system, comprising:

a receiving circuit, for receiving at least one of voltage/current/power information from a portable electronic device sent back to the wireless power transmitter, the at least one of voltage/current/power information is associated with the portable electronic device; and

a power outputting circuit, coupled to the receiving circuit, for adjusting and supplying an output power according to the at least one of voltage/current/power information associated with the portable electronic device.

14. The wireless power transmitter of claim 13, wherein the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of a wireless power receiver and a battery respectively included within the portable electronic device.

15. The wireless power transmitter of claim 14, wherein the portable electronic device further comprises a charger, and the at least one of voltage/current/power information transmitted from the portable electronic device is associated with at least one of the wireless power receiver, the charger, and the battery.