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Wireless charging control method and wireless charging transmitter

A wireless charging and transmitter technology, applied in circuit devices, electrical components, etc., can solve the problems of complex control process, and achieve the effect of simple control process and high efficiency

Pending Publication Date: 2019-07-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a wireless charging control method and a wireless charging transmitter, which are used to solve the problem of complex control processes in the existing

Method used

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  • Wireless charging control method and wireless charging transmitter
  • Wireless charging control method and wireless charging transmitter
  • Wireless charging control method and wireless charging transmitter

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Embodiment Construction

[0023] The main working principle of wireless power transmission technology is: the high-frequency alternating current generated by the transmitting end is applied to the transmitting coil, and then the energy is wirelessly transmitted to the receiving end through electromagnetic induction or magnetic resonance coupling, and the receiving coil at the receiving end receives the energy. The conversion circuit converts AC power into DC power and uses it for the load, thereby realizing wireless power transmission.

[0024] like figure 1 As shown, it is a frame diagram of the wireless charging system in this application, the wireless charging system includes a wireless charging transmitter 11 and a wireless charging receiver 21, wherein the wireless charging transmitter 11 can pass direct current (DC ) input, or through AC (alternating current, AC) input, if the wireless charging transmitter 11 is an AC input, then the wireless charging transmitter 11 includes at least an AC / DC uni...

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Abstract

The invention discloses a wireless charging control method and a wireless charging transmitter used for solving the problem that a conventional control process is complex. The method includes the following steps: obtaining an actual power parameter output by a wireless charging receiver and a target output power parameter of the wireless charging receiver; determining an adjustment parameter of anetwork unit in the wireless charging transmitter according to the actual power parameter and the target output power parameter; and adjusting an output power parameter of the network unit according to the adjustment parameter.

Description

technical field [0001] The present application relates to the technical field of wireless charging, in particular to a wireless charging control method and a wireless charging transmitter. Background technique [0002] Wireless power transfer (wireless power transfer, WPT) is replacing the old wired power transmission. The wireless charging transmitter can provide power to the wireless charging receiver without relying on the charging line. . [0003] In the prior art, the output voltage of the wireless charging receiver is controlled by collecting the output voltage of the wireless charging receiver and comparing it with the preset target output voltage, and the collected output voltage of the wireless charging receiver is compared with the preset target output voltage. The output voltage obtains the target value of the coil current in the wireless charging transmitter, and then compares it with the collected measured value of the coil current to control the magnitude of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/80H02J50/40
CPCH02J50/12H02J50/80H02J50/40
Inventor 陈双全曾晓生刘其堂
Owner HUAWEI TECH CO LTD
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