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Intelligent wireless charging circuit and system

A technology for wireless charging and rechargeable batteries, which is applied to battery circuit devices, circuit devices, current collectors, etc., to achieve the effect of improving receiving sensitivity and enhancing induction strength

Pending Publication Date: 2021-02-09
广州网优优数据技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is currently no active wireless charging device on the market that works well over long distances or in harsh environments with high barriers

Method used

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Examples

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Effect test

Embodiment 1

[0032]The present invention provides an intelligent wireless charging circuit, such asfigure 1 As shown, the smart wireless charging circuit may specifically include the following modules: an induction circuit, a rectifier circuit and a rechargeable battery that are electrically connected in sequence. Among them, the induction circuit is used to receive radio frequency signals and convert the above radio frequency signals into induced currents; the rectifier circuit is used to convert the above induced currents from AC to DC to obtain DC voltage. It is worth noting that the above-mentioned sensing circuit in the embodiment of the present invention is an active sensing circuit.

[0033]In an embodiment of the present invention, the above-mentioned sensing circuit includes: an inductor, a transistor, and two capacitors; a first inductor (L1) and a first capacitor (C1) connected in series are connected across the base of the first transistor (Q1) Between the emitter and the second capacit...

Embodiment 2

[0039]An embodiment of the present invention provides a smart wireless charging system, including the above-mentioned smart wireless charging circuit.

[0040]It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a particular posture (as shown in the accompanying drawings). If the relative positional relationship, movement situation, etc. change, the directional indication will change accordingly. In addition, descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. Moreover, the technical solutions between th...

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Abstract

The invention discloses an intelligent wireless charging circuit and system. The charging circuit comprises an induction circuit, a rectifying circuit and a rechargeable battery which are electricallyconnected in sequence. The resonance frequency of the receiving front-end induction circuit is adjusted through the adjustable capacitor, and the active induction receiving front end is adopted, so that the resonance point resonance induction intensity is enhanced, the weak signal receiving sensitivity is improved, and the circuit is suitable for working in a long-distance severe environment or asevere environment with relatively high barrier property.

Description

Technical field[0001]The present invention relates to the technical field of wireless charging, in particular to an intelligent wireless charging circuit and system.Background technique[0002]Wireless power transmission is also called non-contact power transmission, which is a technology for energy transmission by means of electromagnetic fields or electromagnetic waves. According to different power transmission principles, wireless power transmission is divided into electromagnetic induction, electromagnetic resonance and electromagnetic radiation; among them, the more mature is electromagnetic induction, because the technology is mature and the development is not difficult, so the corresponding application There are also more products.[0003]In modern life, portable devices such as mobile phones, notebook computers, cameras, and camcorders all use rechargeable batteries, but they must be charged through power converters, chargers, or computer USB ports. In the process of using the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/20H02J50/12H02J50/00H02J7/00H02J7/02
CPCH02J50/20H02J50/12H02J50/001H02J7/00H02J7/02
Inventor 杜志恒
Owner 广州网优优数据技术股份有限公司
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