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Power receiving device, power transmitting device, method for controlling said power receiving device and said power transmitting device, and wireless power transmission system

A power receiving and power sending technology, applied in circuit devices, battery circuit devices, transmission systems, etc., can solve problems such as NFC communication failures

Pending Publication Date: 2021-12-10
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid NFC communication failure caused when wireless power and NFC communication interfere with each other, Patent Document 1 restricts wireless power when the power transmitting device performs NFC communication (polling and response).

Method used

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  • Power receiving device, power transmitting device, method for controlling said power receiving device and said power transmitting device, and wireless power transmission system
  • Power receiving device, power transmitting device, method for controlling said power receiving device and said power transmitting device, and wireless power transmission system
  • Power receiving device, power transmitting device, method for controlling said power receiving device and said power transmitting device, and wireless power transmission system

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Embodiment Construction

[0029] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following examples are not intended to limit the scope of the invention. A number of features are described in the embodiments, but are not intended to limit inventions requiring all of these features, and a number of such features may be appropriately combined. In addition, in the drawings, the same reference numerals are assigned to the same or similar configurations, and redundant descriptions thereof are omitted.

[0030] Figure 1A is a diagram showing an example of the configuration of the wireless power transmission system according to the embodiment. The power receiving device 102 conforming to the WPC standard is placed on the power transmitting device 100 conforming to the WPC standard. The power receiving device 102 receives power wirelessly transmitted from the power transmitting device 100 . The power transmitting apparatus 100 and the powe...

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PUM

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Abstract

This power receiving device (102) wirelessly receives power from a power transmitting device (100) and has: a first communication unit (204) for communicating with the power transmitting device; a second control unit (210) for performing the detection of another device capable of short-range wireless communication; and a first control unit (201) for controlling whether the second control unit performs the detection or not. The first control unit performs control so that the second control unit performs the detection when it is determined that the power transmitting device does not have a detection function and when the detection state of the another device is not established by the second control unit and the second control unit does not perform the detection when the detection state has been establishied. The first communication unit transmits a signal based on the detection result of the second control unit to the power transmitting device.

Description

technical field [0001] The present invention relates to a power receiving apparatus, a power transmitting apparatus, a control method thereof, and a wireless power transmitting system. Background technique [0002] Technical development of a wireless power transmission system has been widely carried out. As a standard for forming a power transmitting device and a power receiving device of a wireless power transmitting system, there is provided a standard defined by WPC (hereinafter referred to as a WPC standard), which is an organization for standardization of non-contact charging standards. Note that WPC is an acronym for Wireless Power Consortium. On the other hand, as a standard for short-range wireless communication, the NFC standard is known. NFC is an acronym for Near Field Communication. [0003] In the NFC standard, sending a message for detecting a communication partner device by sending a carrier wave and modulating the carrier wave is called polling. Polls are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/10H02J50/80H02J7/00
CPCH02J50/80H02J50/12H04B5/45H04B5/79H04B5/26H02J50/10H02J50/60
Inventor 七野隆广
Owner CANON KK