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A wireless charging system

A technology of wireless charging and rechargeable batteries, which can be used in current collectors, electric vehicles, electrical components, etc., and can solve problems such as cumbersome operations

Active Publication Date: 2020-09-04
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, mobile terminals are usually charged by plugging and unplugging, but it needs to be plugged and unplugged continuously, and the operation is cumbersome

Method used

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  • A wireless charging system
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Embodiment approach

[0066] As a possible implementation manner, the step-down circuit may include:

[0067] Capacitors C1~C3, resistor R1, step-down chip U1, where:

[0068] One end of C1, the input end in of U1, and the enable end en of U1 are respectively connected to the output end of the power adapter, and the output end out of U1 is respectively connected to one end of C2, one end of R1, the input end IN1 of the control circuit and the input of the drive circuit The terminal IN1 and the other terminal of R1 are respectively connected to one terminal of C3 and the input terminal IN2 of the control circuit, the other terminal of C1, the ground terminal gnd of U1, the other terminal of C2 and the other terminal of C3 are respectively used for connecting to the ground terminal.

[0069] In this embodiment, the step-down chip U1 may be a tlv70033 chip, and the capacitors C1-C3 are filter capacitors.

[0070] As a possible implementation manner, the control circuit may include:

[0071] Resistor...

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PUM

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Abstract

The embodiment of the invention discloses a wireless charging system, which comprises a wireless transmitting device and a wireless receiving device, wherein the wireless transmitting device comprises a power adapter and a transmitting circuit; the wireless receiving device comprises a receiving circuit, a charging management circuit and an anti-reverse circuit; the power adapter converts AC output by an external power supply into first DC and outputs the first DC to the transmitting circuit; the transmitting circuit converts the first DC into an AC magnetic field when detecting the resonant frequency of the receiving circuit; the receiving circuit induces electromotive force from the AC magnetic field, converts the electromotive force into second DC and outputs the second DC to the charging management circuit; the charging management circuit outputs the second DC to the anti-reverse circuit; and the anti-reverse circuit outputs the second DC to a rechargeable battery. Through implementation of the wireless charging system, the operation can be simplified.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a wireless charging system. Background technique [0002] With the continuous development of electronic technology, mobile terminals such as mobile phones, tablet computers, and table lamps can be seen everywhere in daily life, but the batteries used in these mobile terminals are rechargeable batteries. When the battery power of the mobile terminal is used up, it will need to be recharged continuously. . At present, mobile terminals are usually charged by plugging and unplugging, but this requires constant plugging and unplugging, and the operation is cumbersome. Contents of the invention [0003] The embodiment of the present invention discloses a wireless charging system for simplifying operation. [0004] The embodiment of the present invention discloses a wireless charging system, including: [0005] A wireless transmitting device and a wireless receiving dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J50/00H02H7/18
Inventor 周明杰张敏
Owner OCEANKING DONGGUAN LIGHTING TECH