Wireless power supply method, power supply device and power supply system
A wireless power supply and control device technology, applied in circuit devices, electromagnetic wave systems, circuits, etc., can solve problems such as poor coupling between transmitting coils and receiving coils, electromagnetic leakage, and incomplete coverage of receiving coils, so as to improve power supply efficiency and coupling sexual effect
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Example Embodiment
[0020] Example one
[0021] reference figure 1 , This embodiment provides a wireless power supply method, including:
[0022] Step S101, detecting whether there is useful electrical equipment in the working area of the wireless power supply device;
[0023] The working area includes a plurality of transmitting coils with different sizes in a concentric arrangement;
[0024] Step S102, if yes, establish a communication connection between the wireless power supply device and the electric device, obtain the power information of the electric device, and select to conduct the corresponding transmission in the working area according to the power information Power transmission between the coil and the receiving coil of the electrical equipment.
[0025] Regarding the control processing method of detecting that there is no electric device in the work area, this embodiment does not limit this. For example, an optional implementation manner: continue to detect whether there is any electric dev...
Example Embodiment
[0053] Example two
[0054] reference Figure 4 , This embodiment provides a wireless power supply device, including:
[0055] A working area 201 formed by a plurality of concentrically arranged transmitting coils of different sizes;
[0056] The control device 202 is used to control and detect whether there is useful electrical equipment in the work area, control to establish a communication connection with the electrical equipment when there is useful electrical equipment in the work area, and control the acquisition of the electrical equipment Power information, and according to the power information, the power transmission between the corresponding transmitting coil in the working area and the receiving coil of the electric device is selected and turned on.
[0057] As an optional implementation manner, the wireless power supply device provided in this embodiment further includes a giant magnetoresistance sensor 203, which is used to detect whether there is any electrical equipmen...
Example Embodiment
[0073] Example three
[0074] reference Figure 5 , This embodiment provides a wireless power supply system, including:
[0075] The wireless power supply device 301 and the electric device 302 are provided with a receiving coil for coupling with the transmitting coil in the wireless power supply device 301 for power transmission.
[0076] For the structure and principle of the wireless power supply device 301, please refer to the second embodiment, which will not be repeated here.
[0077] The electric equipment 301 is also provided with a signal transmitting terminal 303 for communicating with the signal receiving terminal in the wireless power supply device 301 and sending information to the signal receiving terminal. The information includes the power information of the electric equipment itself.
[0078] The wireless power supply system provided by this embodiment can select a suitable transmitting coil for power transmission according to the information of the electric equipment,...
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