A method, device and system for determining wireless charging power

A technology of wireless charging and power determination, applied in current collectors, electric vehicles, electrical components, etc., can solve the problems of limited receiving device selectivity, inability to adjust the transmission power, etc., and achieve the effect of improving charging efficiency

Active Publication Date: 2021-08-03
SHENZHEN JOWAY POWER SUPPLY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Wireless charging has been gradually popularized in daily life, especially with the rapid development of smart terminals, wireless charging applications in mobile terminals are becoming more and more widely used, and then, in order to improve transmission efficiency in the prior art, it is generally First detect the position of the wireless receiving device, and then select the sending coil closest to the wireless receiving device to transmit wireless power, and the other coils are turned off to maximize the efficiency of wireless power transmission. However, although this method can be used to a certain extent It meets the requirements of efficiency, but it cannot adjust the transmission power according to the wireless device, which limits the charging selectivity of the receiving device to a certain extent.

Method used

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  • A method, device and system for determining wireless charging power
  • A method, device and system for determining wireless charging power
  • A method, device and system for determining wireless charging power

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Embodiment Construction

[0019] The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.

[0020] like figure 1 As shown, this application proposes a wireless charging power determination method, which includes the following steps: (1) Determine the i-th wireless charging unit from the receiving device to the charger as the base point, and set the distance as , in order to determine the distance from all wireless charging units to the receiving device; (2) Calculate the power that each wireless charging unit can transmit and the total effective power that the charger can transmit; (3) Compare the total power that the charger can transmit with the receiv...

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Abstract

This application relates to a wireless charging power determination method, charger, receiving device and system, including the following steps: (1) Determine the receiving device to the i-th wireless charging unit of the charger as the base point, set the distance as , and determine all wireless charging units in turn The distance between the unit and the receiving device; (2) Calculate the power that each wireless charging unit can send and the total effective power that the charger can send; (3) Compare the total power that the charger can send with the target power of the receiving device; (4 ) to select the number of wireless charging units and output the target power. The present application can adjust the output power of multiple wireless charging units to meet the power requirement of wireless charging and improve the efficiency of wireless power transmission.

Description

technical field [0001] The present application relates to the field of wireless charging, and in particular to a method for determining wireless charging power, a charger, a receiving device and a system. Background technique [0002] Wireless charging has been gradually popularized in daily life, especially with the rapid development of smart terminals, wireless charging applications in mobile terminals are becoming more and more widely used, and then, in order to improve transmission efficiency in the prior art, it is generally First detect the position of the wireless receiving device, and then select the sending coil closest to the wireless receiving device to transmit wireless power, and the other coils are turned off to maximize the efficiency of wireless power transmission. However, although this method can be used to a certain extent It meets the requirement of efficiency, but it is impossible to adjust the size of the transmission power according to the wireless dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J50/40
CPCH02J7/025H02J50/40
Inventor 延怀宾
Owner SHENZHEN JOWAY POWER SUPPLY
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