Wireless power transmitter and operation method of the same

• US 9,800,081 B2
• Filed: 09/15/2015
• Issued: 10/24/2017
• Est. Priority Date: 09/15/2014
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Chu, Feng-Seng
• Primary Examiner(s): Tat, Binh
• Application Number:
  US14/854,061
• Publication Number:
  US 20160079803A1
• Time in Patent Office: 770 Days
• Field of Search: 320107-115
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A wireless power transmitter that includes a power transmitting module, a communication module and a processing module is provided. The power transmitting module provides a wireless power to a wireless power receiver. The processing module receives a first request message from a remote mobile device through the communication module to request charging information of the wireless power receiver, determines whether the charging information is available, transmits available information to the remote mobile device under a condition that at least first part of the charging information is available, receives provided information from the wireless power receiver through the communication module under a condition that at least second part of the charging information is not available, and transmits the provided information through the communication module to the remote mobile device.

Claims

1. A wireless power transmitter comprising:

a power transmitting module configured for providing a wireless power to a wireless power receiver;

a communication module; and

a processing module electrically connected to the power transmitting module and the communication module, wherein the processing module is configured for;

receiving a first request message from a remote mobile device through the communication module to request charging information of the wireless power receiver;

determining whether the charging information is available;

under a condition that at least first part of the charging information is available, transmitting available information comprising the at least first part of the charging information through the communication module to the remote mobile device;

under a condition that at least second part of the charging information is not available, receiving provided information comprising the at least second part of the charging information from the wireless power receiver through the communication module; and

transmitting the provided information through the communication module to the remote mobile device.

3. The wireless power transmitter of claim 1, wherein the processing module is further configured for periodically receiving information of the wireless power receiver therefrom through the communication module as the available information.

4. The wireless power transmitter of claim 1, wherein each of the charging information, the available information and the provided information comprises a percentage of power in a battery of the wireless power receiver, a volume of the battery of the wireless power receiver, a temperature of the wireless power receiver, a temperature of the battery of the wireless power receiver, a remaining time to fully charge the battery of the wireless power receiver, a supplying power of the wireless power transmitter, a supplying voltage of the wireless power transmitter, a supplying current of the wireless power transmitter, a receiving power of the wireless power receiver, a receiving voltage of the wireless power receiver, a receiving current of the wireless power receiver or a combination of the above.

5. The wireless power transmitter of claim 1, wherein the charging information is either identical to the available information or the provided information.

6. The wireless power transmitter of claim 1, wherein the processing module is further configured for transmitting additional information through the communication module to the remote mobile device, wherein the additional information is comprised in the available information or in the provided information.

7. The wireless power transmitter of claim 6, wherein the additional information comprises an identity of the wireless power receiver that comprises a model name, a device name, a device type or a specific name of the wireless power receiver.

8. The wireless power transmitter of claim 1, wherein at least one of communication interfaces between the wireless power transmitter and the remote mobile device and between the wireless power transmitter and the wireless power receiver is independent from a power transferring path.

9. The wireless power transmitter of claim 1, wherein at least one of communication interfaces between the wireless power transmitter and the remote mobile device and between the wireless power transmitter and the wireless power receiver is integrated in a power transferring path.

2. The wireless power transmitter of clam 1, wherein receiving the provided information further comprises:

the processing module transmitting a second request message through the communication module to the wireless power receiver to request the at least second part of the charging information and receiving the provided information subsequently.

10. An operation method used in a wireless power transmitter comprising:

providing a wireless power to a wireless power receiver by a power transmitting module;

receiving a first request message from a remote mobile device through a communication module to request charging information of the wireless power receiver;

determining whether the charging information is available;

under a condition that at least first part of the charging information is available, transmitting available information comprising the at least first part of the charging information through the communication module to the remote mobile device;

under a condition that at least second part of the charging information is not available, receiving provided information comprising the at least second part of the charging information from the wireless power receiver through the communication module; and

transmitting the provided information through the communication module to the remote mobile device.

11. The operation method of claim 10, wherein receiving the provided information further comprises:

transmitting a second request message through the communication module to the wireless power receiver to request the at least second part of the charging information and receiving the provided information subsequently.

12. The operation method of claim 10, further comprising:

periodically receiving information of the wireless power receiver therefrom through the communication module as the available information.

13. The operation method of claim 10, wherein each of the charging information, the available information and the provided information comprises a percentage of power in a battery of the wireless power receiver, a volume of the battery of the wireless power receiver, a temperature of the wireless power receiver, a temperature of the battery of the wireless power receiver, a remaining time to fully charge the battery of the wireless power receiver, a supplying power of the wireless power transmitter, a supplying voltage of the wireless power transmitter, a supplying current of the wireless power transmitter, a receiving power of the wireless power receiver, a receiving voltage of the wireless power receiver, a receiving current of the wireless power receiver or a combination of the above.

14. The operation method of claim 10, wherein charging information is either identical to the available information or the provided information.

15. The operation method of claim 10, further comprising:

transmitting additional information through the communication module to the remote mobile device by the wireless power transmitter, wherein the additional information is comprised in the available information or in the provided information.

16. The operation method of claim 15, wherein the additional information comprises an identity of the wireless power receiver that comprises a model name, a device name, a device type or a specific name of the wireless power receiver.

17. The operation method of claim 10, wherein at least one of communication interfaces between the wireless power transmitter and the remote mobile device and between the wireless power transmitter and the wireless power receiver is independent from a power transferring path.

18. The operation method of claim 10, wherein at least one of communication interfaces between the wireless power transmitter and the remote mobile device and between the wireless power transmitter and the wireless power receiver is integrated in a power transferring path.