阅读说明：本技术 一种可自动居中效率最大化的无线充电设备 (Wireless charging equipment capable of automatically centering and maximizing efficiency ) 是由 乐章 肖纲穗 戴南湖 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种可自动居中效率最大化的无线充电设备,包括充电座以及安装在充电座内部的马达居中控制电路和无线充电电路,所述马达居中控制电路包括主控IC、Y轴马达控制电路和X轴马达控制电路,无线充电电路包括无线充主控IC、无线充功率发射电路和QI协议解析模块,无线充主控IC分别连接无线充功率发射电路和QI协议解析模块,主控IC分别连接Y轴马达控制电路和X轴马达控制电路,本发明可自动居中效率最大化的无线充电设备能够解决负载偏离中心点导致效率低的问题,可以有效的达到节能的目的。(The invention discloses a wireless charging device capable of automatically centering and maximizing efficiency, which comprises a charging seat, and a motor centering control circuit and a wireless charging circuit which are arranged in the charging seat, wherein the motor centering control circuit comprises a master control IC, a Y-axis motor control circuit and an X-axis motor control circuit, the wireless charging circuit comprises a wireless charging master control IC, a wireless charging power transmitting circuit and a QI protocol analysis module, the wireless charging master control IC is respectively connected with the wireless charging power transmitting circuit and the QI protocol analysis module, and the master control IC is respectively connected with the Y-axis motor control circuit and the X-axis motor control circuit.)

1. A wireless charging device capable of automatically centering and maximizing efficiency comprises a charging seat, a motor centering control circuit and a wireless charging circuit, wherein the motor centering control circuit comprises a master control IC, a Y-axis motor control circuit and an X-axis motor control circuit, the wireless charging circuit comprises a wireless charging master control IC, a wireless charging power transmitting circuit and a QI protocol analysis module, the wireless charging master control IC is respectively connected with the wireless charging power transmitting circuit and the QI protocol analysis module, the master control IC is respectively connected with the Y-axis motor control circuit and the X-axis motor control circuit, a communication circuit is arranged between the motor centering control circuit and the wireless charging circuit, the charging seat is provided with four wheels, the X-axis motor control circuit controls a first motor to drive two wheels to rotate along the X direction, the Y-axis motor control circuit controls a second motor to drive the other two wheels to rotate along the Y direction, when the mobile phone is placed on the charging seat, the coil senses that the coil of the mobile phone records the charging power value, the first motor/the second motor can drive the mobile phone to find the highest point along the X/Y direction, and then the mobile phone stops moving and starts charging with the maximum efficiency.

2. The wireless charging device of claim 1, wherein when the user places the wireless receiving device supporting QI protocol on the charging seat, the QI protocol analyzing circuit in the wireless charging circuit receives the central point signal value fed back by the wireless receiving device, the centering signal is divided into signal values of 0-128, 128 represents the most central position, 0 represents the maximum center position of offset, the wireless charging master control IC obtains the centering signal value sent by the wireless charging master control IC, and then the X-axis moves by one unit in the positive direction; if the median value is reduced, continuously moving one unit to the same direction of the X axis; if the median increases, moving one unit in the opposite direction of the X axis, comparing the minimum value in the X axis direction, moving the Y axis direction in the same way, and finally stopping motor control and starting to drive wireless charging power emission when the value closest to 128 is reached.

3. The wireless charging device of claim 1, wherein the master IC employs a DVB689 chip.

4. The wireless charging device of claim 1, wherein the wireless charging master IC employs a DVB688 chip.

5. The wireless charging device of claim 1, further comprising an LED circuit as a signal indicator, wherein the LED like circuit comprises a green LED light and a blue LED light, the green LED light being on when no load is applied and the blue LED light being on when loaded.

6. The wireless charging device of any of claims 1-5, wherein the wireless charging circuit further comprises an input current detection module.

7. The wireless charging device of claim 6, wherein the wireless charging circuit further comprises an input voltage detection module.

Technical Field

The invention relates to the technical field of PCB (printed circuit board) manufacturing, in particular to wireless charging equipment capable of automatically centering and maximizing efficiency.

Background

Most market products realize the function of wireless charging only to the wireless receiving equipment that supports the QI agreement at present, and when the receiving equipment deviates from the central point and leads to inefficiency, need increase mains power to compensate the inefficiency problem.

In order to solve the above problems, the present invention provides a wireless charging circuit and a brush motor control circuit having a near field distance induction type, which can implement a function of wirelessly charging a wireless receiving device supporting a QI protocol, and solve a problem of low efficiency caused by a load deviating from a central point, and can effectively achieve an energy saving purpose.

Disclosure of Invention

The present invention is directed to a wireless charging device capable of automatically centering to maximize efficiency, so as to solve the problems of the background art.

In order to realize the purpose, the invention provides the following technical scheme:

a wireless charging device capable of realizing automatic centering and efficiency maximization comprises a charging seat, a motor centering control circuit and a wireless charging circuit, wherein the motor centering control circuit and the wireless charging circuit are arranged in the charging seat, the motor centering control circuit comprises a main control IC, a Y-axis motor control circuit and an X-axis motor control circuit, the wireless charging circuit comprises a wireless charging main control IC, a wireless charging power transmitting circuit and a QI protocol analysis module, the wireless charging main control IC is respectively connected with the wireless charging power transmitting circuit and the QI protocol analysis module, the main control IC is respectively connected with the Y-axis motor control circuit and the X-axis motor control circuit, a communication circuit is arranged between the motor centering control circuit and the wireless charging circuit, four wheels are arranged on the charging seat, the X-axis motor control circuit controls a first motor to drive two wheels to rotate along the X direction, the Y-axis motor control circuit controls a second motor to drive the other two wheels to, when the mobile phone is placed on the charging seat, the coil senses that the coil of the mobile phone records the charging power value, the first motor/the second motor can drive the mobile phone to find the highest point along the X/Y direction, and then the mobile phone stops moving and starts charging with the maximum efficiency.

As a further scheme of the invention: when a user puts wireless receiving equipment supporting a QI protocol on a charging seat, a QI protocol analysis circuit in a wireless charging circuit receives a central point signal value fed back by the wireless receiving equipment, a centering signal is divided into signal values of 0-128, 128 represents the most central position, 0 represents the maximum offset central position, a wireless charging main control IC obtains the centering signal value sent by the wireless charging main control IC, and then the X-axis positive direction moves by one unit; if the median value is reduced, continuously moving one unit to the same direction of the X axis; if the median increases, moving one unit in the opposite direction of the X axis, comparing the minimum value in the X axis direction, moving the Y axis direction in the same way, and finally stopping motor control and starting to drive wireless charging power emission when the value closest to 128 is reached.

As a still further scheme of the invention: the master control IC adopts a DVB689 chip.

As a still further scheme of the invention: the wireless main control IC that fills adopts DVB688 chip.

As a still further scheme of the invention: still include the LED circuit as signal indication, LED isoelectronic circuit includes green LED lamp and blue LED lamp, and when no-load, green LED lamp is bright, and when the area carried, blue LED lamp is bright.

As a still further scheme of the invention: the wireless charging circuit further comprises an input current detection module.

As a still further scheme of the invention: the wireless charging circuit further comprises an input voltage detection module.

Compared with the prior art, the invention has the beneficial effects that: the wireless charging equipment capable of automatically centering and maximizing efficiency can solve the problem of low efficiency caused by the fact that the load deviates from the central point, and can effectively achieve the purpose of energy conservation.

Drawings

Fig. 1 is an overall block diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

FIG. 3 is a logical framework diagram of the present invention.

FIG. 4 is a wireless charging MCU;

FIG. 5 is a power driving circuit;

FIG. 6 is a detector circuit;

FIG. 7 is an over-calash detection circuit;

FIG. 8 is an LED lamp circuit;

FIG. 9 is a control motor MCU circuit;

fig. 10 shows a motor drive circuit.

In the figure: 1-Y direction rotating wheel, 2-X direction rotating wheel and 3-charging seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.