CN209562217U - A kind of wireless charging receiver for miniaturized electronics - Google Patents
A kind of wireless charging receiver for miniaturized electronics Download PDFInfo
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- CN209562217U CN209562217U CN201822228817.0U CN201822228817U CN209562217U CN 209562217 U CN209562217 U CN 209562217U CN 201822228817 U CN201822228817 U CN 201822228817U CN 209562217 U CN209562217 U CN 209562217U
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- diode
- module
- wireless charging
- receiving coil
- signal
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Abstract
The utility model relates to a kind of wireless charging receiver for miniaturized electronics, the wireless charging receiver includes: receiving coil module, rectification module and the Voltage stabilizing module being sequentially connected electrically；Wherein, the receiving coil module for the magnetic field that induction wireless charging sending device generates, and generates ac signal；The rectification module, for the ac signal to be converted to DC signal；The Voltage stabilizing module, in predeterminated voltage, the DC signal with the predeterminated voltage being exported the voltage stabilization of the DC signal to rechargeable battery.Using the utility model embodiment, the wireless charging of miniaturized electronics can be realized.
Description
Technical field
The utility model belongs to wireless charging technical field, and in particular to a kind of wireless charging for miniaturized electronics
Reception device.
Background technique
With the development of science and technology, various miniaturized electronics are widely used in people's lives, such as mobile phone, Intellgent Ear
Machine and Intelligent bracelet etc., due to continually using, the charging problems of these miniaturized electronics are increasingly becoming concerned by people
Focus.Wired charger or USB line can be usually used to be filled for the rechargeable battery in these miniaturized electronics
Electricity, but the portability of above-mentioned charging modes is poor；And wired charging method needs to be arranged on these miniaturized electronics
USB interface, this will be unfavorable for the waterproof of equipment, antistatic designs, while USB interface is mechanical connection manner, repeatedly after plug
Easily there is the case where poor contact, is easy to damage equipment.
And currently, wireless energy transmission technology is just gradually rising, as its name suggests, wireless energy transmission technology is with non-contact
Wireless mode realize the energy transmission between power supply and electrical equipment.Wireless energy transmission technology can greatly improve equipment
Reliability, portability and the safety of power supply, therefore have broad application prospects.Currently, researcher be dedicated to one after another according to
The wireless charging of electronic equipment is realized by wireless energy transmission technology.It is confirmed through research, electronics may be implemented in electromagnetic induction principle
The wireless charging of equipment.
But the finite volume of above-mentioned miniaturized electronics, and the capacity of rechargeable battery is smaller, therefore, how to utilize electromagnetism
Principle of induction realizes the wireless charging of miniaturized electronics, is a urgent problem to be solved.
Utility model content
In order to realize the wireless charging of miniaturized electronics, the utility model provides a kind of for miniaturized electronics
Wireless charging receiver.
Specifically, a kind of wireless charging for miniaturized electronics that the utility model one embodiment proposes receives dress
It sets, comprising:
Receiving coil module, rectification module and the Voltage stabilizing module being sequentially connected electrically；Wherein,
The receiving coil module for the magnetic field that induction wireless charging sending device generates, and generates ac signal；
The rectification module, for the ac signal to be converted to DC signal；
The Voltage stabilizing module, for the voltage stabilization of the DC signal in predeterminated voltage, will to have described default
The DC signal of voltage is exported to rechargeable battery.
In one embodiment of the utility model, the receiving coil module includes be connected to the rectification module two
Receiving coil between a input terminal, the receiving coil are set to the wireless charging receiver in a manner of PCB layout
On the circuit board at place.
In one embodiment of the utility model, the rectification module includes diode D1, diode D2, diode
D3 and diode D4, wherein
The diode D1 anode respectively with the first input end of the Voltage stabilizing module and the diode D2 just
Pole connection, the cathode of the diode D1 are connect with the anode of the diode D3；The anode of the diode D3 is through the 5th electricity
Appearance is connect with the first end of the receiving coil, and the cathode of the diode D3 and the second input terminal of the Voltage stabilizing module connect
It connects；The cathode of the diode D4 is connect with the cathode of the diode D3, and the anode of the diode D4 is respectively with described two
The connection of the second end of the cathode of pole pipe D2 and the receiving coil.
In one embodiment of the utility model, the diode D1, the diode D2, the diode D3 and institute
Stating diode D4 is silicon-based modifying Ge Schottky diode.
In scheme provided by the utility model embodiment, it can be charged and be sent by the receiving coil module induction wireless
The magnetic field that device generates, and generate ac signal；The ac signal is converted into direct current telecommunications by the rectification module
Number；Again by the Voltage stabilizing module, by the voltage stabilization of the DC signal in predeterminated voltage, and there will be the predeterminated voltage
DC signal export the wireless charging that electronic equipment is completed to rechargeable battery；Receiving coil in the utility model embodiment
The electric current generated after module and the transmit coil module coupling of wireless charging sending device is smaller, is suitable for rechargeable battery and holds
Measure lesser miniaturized electronics；And receiving coil is realized by PCB layout, is not had to independent coiling, is being reduced cost
Meanwhile can reduce the volume of wireless charging receiver, it is suitable for the wireless charging of miniaturized electronic devices；
Diode in scheme provided by the utility model embodiment, in the wireless charging receiver rectification module
Silicon-based modifying Ge Schottky diode can be used, the silicon-based modifying Ge Schottky diode is changed by Ge bandgap type
And the relaxation GeSn material formed, the electron mobility of the relaxation GeSn material, the electron mobility relative to pure Ge material
It can be improved one times, using the silicon-based modifying Ge Schottky diode, the energy of wireless charging receiver can be obviously improved
Measure transfer efficiency.
Through the following detailed description with reference to the accompanying drawings, the other aspects and feature of the utility model become obvious.But it answers
When knowing, which is only the purpose design explained, not as the restriction of the scope of the utility model, this is because its
It should refer to appended claims.It should also be noted that unless otherwise noted, it is not necessary to which scale attached drawing, they are only
Try hard to conceptually illustrate structure and process described herein.
Detailed description of the invention
Fig. 1 is a kind of knot of the wireless charging receiver for miniaturized electronics provided by the embodiment of the utility model
Structure schematic diagram；
Fig. 2 is a kind of electricity of the wireless charging receiver for miniaturized electronics provided by the embodiment of the utility model
Road schematic diagram；
Fig. 3 is a kind of silicon of the wireless charging receiver for miniaturized electronics provided by the embodiment of the utility model
The structural schematic diagram of the modified Ge Schottky diode of base.
Specific embodiment
Further detailed description, but the embodiment party of the utility model are done to the utility model combined with specific embodiments below
Formula is without being limited thereto.
Embodiment one
The utility model embodiment provides a kind of wireless charging receiver 100 for miniaturized electronics.It please join
See that Fig. 1, Fig. 1 are a kind of structure of the wireless charging receiver for miniaturized electronics provided by the embodiment of the utility model
Schematic diagram.
As shown in Figure 1, the wireless charging receiver 100 for miniaturized electronics, comprising: be sequentially connected electrically
Receiving coil module 110, rectification module 120 and Voltage stabilizing module 130；Wherein, the receiving coil module 110, for incuding nothing
The magnetic field that line charge electricity sending device generates, and generate ac signal；
The rectification module 120, for the ac signal to be converted to DC signal；
The Voltage stabilizing module 130, for the voltage stabilization of the DC signal in predeterminated voltage, will to have described pre-
If the DC signal of voltage is exported to rechargeable battery.
It should be noted that the corresponding wireless charging sending device of the utility model embodiment may include being sequentially connected electrically
Oscillator, amplifier and transmitting coil module etc..The AC signal that the oscillator generates produces after amplifier amplification
The AC signal of raw amplification, it is near-field communication frequency that the AC signal of the amplification, which can produce frequency through the transmitting coil module,
The magnetic field of rate (frequency can be 13.56MHZ).It is filled here, not sent to the corresponding wireless charging of the utility model embodiment
It sets and is described in detail.
Receiving coil module 110, rectification module 120 and Voltage stabilizing module 130 are introduced respectively below.
(1) being described as follows for receiving coil module 110:
In the utility model embodiment, the receiving coil module 110 includes being connected to the two of the rectification module 120
Receiving coil between a input terminal, the receiving coil are set to the wireless charging receiver in a manner of PCB layout
On circuit board where 100.
Receiving coil is set in a manner of PCB layout on the circuit board at 100 place of wireless charging receiver,
Without independent coiling, while cost is reduced, it can reduce the volume of wireless charging receiver 100, be conducive to electricity
The Miniaturization Design of sub- equipment.
Certainly, the receiving coil module 110 can also include capacitor etc..
(2) being described as follows for rectification module 120:
The rectification module is the module for AC energy being converted to direct current energy, by the electricity after the rectification module
Pressure not instead of alternating voltage, a kind of mixed-voltage containing DC voltage and alternating voltage.It is properly termed as unidirectionally pulsing
Property DC voltage.The rectification module can be made of transformer, diode, thyristor and filter etc..
In the utility model embodiment, can using any one rectification circuit as the rectification module, use
Rectification circuit can be half-wave rectifying circuit, full-wave rectifying circuit or bridge rectifier etc..
In the utility model embodiment, the rectification module 120 can be made of multiple diodes, a kind of optional reality
In existing mode, since Schottky diode reverse recovery time is extremely short (may diminish to several nanoseconds), forward conduction voltage drop can reach
To only 0.4V, and low-voltage and high-current can be born, two poles in the utility model embodiment, in the rectification module 120
Pipe can use Schottky diode, to guarantee the stability of higher rectification efficiency and circuit.
(3) being described as follows for Voltage stabilizing module 130:
The rechargeable battery that Voltage stabilizing module 130 can connect its output end is protected, and Voltage stabilizing module 130 is avoided to export
Moment big voltage influence rechargeable battery performance.The Voltage stabilizing module 130 can be by voltage-stabiliser tube and as the electricity of match circuit
Sense, capacitor etc. are constituted.
Receiving coil module 110 in the utility model embodiment, rectification module 120 and pressure stabilizing mould in order to facilitate understanding
The course of work of block 130, is illustrated below in conjunction with Fig. 2, and Fig. 2 is provided by the embodiment of the utility model a kind of for small electrical
The circuit diagram of the wireless charging receiver of sub- equipment.Dotted line frame 110 is the receiving coil module, dotted line frame in Fig. 2
120 be the rectification module, and dotted line frame 130 is the Voltage stabilizing module.
The receiving coil module 110 includes being connected between two input terminals 11 and 12 of the rectification module 120
Receiving coil L2, the receiving coil L2 are set to the electricity where the wireless charging receiver 100 in a manner of PCB layout
On the plate of road.The receiving coil module 110 further includes the 5th capacitor C5, the 6th capacitor C6 and the 7th capacitor C7.
The rectification module 120 includes diode D1, diode D2, diode D3 and diode D4.Wherein, two pole
The anode of pipe D1 is connect with the anode of the first input end (31) of the Voltage stabilizing module 130 and the diode D2 respectively, institute
The cathode for stating diode D1 is connect with the anode of the diode D3；The anode of the diode D3 is through the 5th capacitor C5 and institute
State first end (11) connection of receiving coil L2, the cathode of the diode D3 and the second input terminal (32) of the Voltage stabilizing module
Connection；The cathode of the diode D4 is connect with the cathode of the diode D3, the diode D4 anode respectively with it is described
The connection of the second end (12) of the cathode of diode D2 and the receiving coil L2.
The Voltage stabilizing module 130 includes the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10, the 6th resistance R6, pressure stabilizing
Pipe D5 and triode Q2.Wherein, the collector of the triode Q2 is connect with the 8th capacitor C8, the triode Q2's
Base stage is connect with the cathode of the voltage-stabiliser tube D5, and the emitter of the triode Q2 divides two-way, is connected all the way with the rechargeable battery
It connects, another way is grounded with through the 9th capacitor C9；The cathode of the voltage-stabiliser tube D5 is connect with the 6th resistance R6, described steady
The plus earth of pressure pipe D5；One end of the 8th capacitor C8 is connect through the 6th resistance R6 with the cathode of voltage-stabiliser tube D5, separately
One end ground connection；The tenth capacitor C10 is in parallel with the 8th capacitor C8.
Specifically, alternating current is generated under the coupling in the magnetic field caused by transmitting coil receiving coil L2, the friendship
Galvanic electricity flows through after the 5th capacitor C5, the 6th capacitor C6 and the 7th capacitor C7 carry out shaping, by diode D1, diode D2,
The rectified action of diode D3 and diode D4 form DC current, which will after the pressure stabilization function of voltage-stabiliser tube D5
The base voltage of triode Q2 stabilizes to the voltage (the as described predeterminated voltage) of voltage-stabiliser tube D5, such as the stable electricity of voltage-stabiliser tube D5
Pressure is 5V, then the base voltage of triode Q2 is 5V, to maintain the real-time conduction of triode Q2.The stabilization of Q2 emitter output
DC voltage can be supplied to rechargeable battery, to complete the charging of electronic equipment.
Optionally, in the utility model embodiment, between the rectification module 120 and the Voltage stabilizing module 130,
Filter module can also be set, and the approximation for the waveform non-straight that the filter module can export the rectification module 120 is straight
Galvanic electricity is trimmed to direct current as straight as possible and is supplied to Voltage stabilizing module 130, and the filter module can be by multiple filter capacitors
It constitutes.
Optionally, between the Voltage stabilizing module 130 and rechargeable battery, battery management module, the electricity can also be set
Pond management module is used to receive the predeterminated voltage signal of the output of Voltage stabilizing module 130, and controls the predeterminated voltage signal,
With the electric signal of output constant current constant pressure, and the electric signal of constant current constant voltage is supplied to rechargeable battery.Wherein, the battery management
Module may include battery management chip etc..
Optionally, wireless charging receiver 100 can also include the charging protecting module connecting with the rechargeable battery,
The charging protecting module is used to detect the electricity of rechargeable battery, and the charging protecting module is detecting that electric quantity of rechargeable battery fills
Man Hou can produce the standby signal of such as optical signal or voice signal type, to protect rechargeable battery and save electric energy.
It, can be by the receiving coil module, induction wireless charging hair in scheme provided by the utility model embodiment
The magnetic field for sending device to generate, and generate ac signal；The ac signal is converted into direct current by the rectification module
Signal；There to be the predeterminated voltage by the voltage stabilization of the DC signal in predeterminated voltage by the Voltage stabilizing module again
DC signal export to rechargeable battery, to complete the wireless charging of electronic equipment.It is received in the utility model embodiment
The electric current generated after coil module and the transmit coil module coupling of wireless charging sending device is smaller, is suitable for charging electricity
The lesser miniaturized electronics of tankage；And receiving coil by PCB layout realize, do not have to independent coiling, reduce at
This while, can reduce the volume of wireless charging receiver, be suitable for the wireless charging of miniaturized electronic devices.
Embodiment two
Transfer efficiency is to evaluate the key index of wireless energy transfer.It is directed to described in embodiment one for miniature electric
For the wireless charging receiver of equipment, the diode in rectification module decides the size of highest transfer efficiency.Theory card
It is real, using high mobility material Schottky diode due to carrier velocity it is very fast, for high-frequency signal response can more and
When, thus be more suitable for working in high frequency, be conducive to promote maximum conversion efficiency.
Based on above-mentioned thought, the utility model embodiment provides a kind of wireless charging reception for miniaturized electronics
The silicon-based modifying Ge Schottky diode of device, refers to Fig. 3, and Fig. 3 is provided by the embodiment of the utility model a kind of for small
The structural schematic diagram of the silicon-based modifying Ge Schottky diode of the wireless charging receiver of type electronic equipment.
As shown in figure 3, the silicon-based modifying Ge Schottky diode includes:
Si substrate (001), crystallization Ge1-xSnxLayer (007), N-type Ge1-xSnxLayer (009), Al metal layer (010), W metal
Layer (012), first electrode and second electrode, wherein
The crystallization Ge1-xSnxLayer (007) is arranged on the surface of the Si substrate (001)；
The N-type Ge1-xSnxLayer (009) is embedded in the crystallization Ge1-xSnxIn layer (007)；
The Al metal layer (010) is arranged in the N-type Ge1-xSnxThe surface of layer (009) connects with the first electrode
It connects；
The W metal layer (012) is arranged in the crystallization Ge1-xSnxThe default Schottky contact area on layer (007) surface
It is interior, it is connect with the second electrode；
Wherein, the second electrode (a2) is the anode of the silicon-based modifying Ge Schottky diode, the first electrode
It (a1) is the cathode of the silicon-based modifying Ge Schottky diode.
Form the N-type Ge1-xSnxLayer (009) is and then to form first based on Ohmic contact to generate Ohmic contact
Electrode a1.
Wherein, in a kind of implementation, the N-type Ge1-xSnxThe doping concentration of layer (009) is 1020cm-3。
Doping concentration is 1020cm-3Belong to heavy doping, so that the N-type Ge1-xSnxLayer (009) can be used for generating ohm
Contact, and then first electrode a1 is formed based on Ohmic contact.
The crystallization Ge of formation1-xSnxStress is not present in layer, belongs to relaxation GeSn material.
Form the crystallization Ge1-xSnxLayer (007) and then is formed based on Schottky contacts to generate Schottky contacts
Second electrode a2.
In a kind of implementation, the Si substrate (001) is the single crystal Si substrate with a thickness of 300~400 μm, the Al
The thickness of metal layer (010) and the W metal layer (012) is 10~20nm.
Silicon is often used as the substrate of Schottky diode due to its stability height as a kind of semiconductor.Prepare silicon substrate
Any one material for containing Si can be chosen.And since electronics is bigger than hole mobility, in order to obtain good frequency characteristic,
In the utility model embodiment, substrate can be prepared with single crystalline Si.300~400 μm are in schottky device preparation using crystalline substance
A round typical thickness specification.
It should be noted that first electrode and second electrode can be located at the same face, first electrode and second electrode are compared
It is located at the Schottky diode of top and bottom, the Schottky diode provided by the embodiment of the utility model for RECTIFYING ANTENNA
Using planar technology.
The utility model embodiment changes to form relaxation GeSn material by Ge bandgap type, the relaxation GeSn material
Electron mobility, the electron mobility relative to pure Ge material can be improved one times, and relaxation GeSn material is applied to Xiao
Its carrier mobility can be improved in special based diode, is suitable for wireless charging receiver, can greatly promote energy conversion effect
Rate.
Direct band gap relaxation GeSn semiconductor and Si process compatible in the utility model embodiment, and step is simple, has
Apparent cost advantage.
The utility model embodiment uses planar technology manufacturing method and manufactures Schottky diode, it is easier to integrated and work
Skill control.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (3)
1. a kind of wireless charging receiver for miniaturized electronics characterized by comprising
Receiving coil module, rectification module and the Voltage stabilizing module being sequentially connected electrically；Wherein,
The receiving coil module for the magnetic field that induction wireless charging sending device generates, and generates ac signal；It is described
Receiving coil module includes the receiving coil being connected between two input terminals of the rectification module, the receiving coil with
The mode of PCB layout is set on the circuit board where the wireless charging receiver；
The rectification module, for the ac signal to be converted to DC signal；
The Voltage stabilizing module, for the voltage stabilization of the DC signal in predeterminated voltage, will to be had the predeterminated voltage
DC signal export to rechargeable battery.
2. wireless charging receiver according to claim 1, which is characterized in that
The rectification module includes diode D1, diode D2, diode D3 and diode D4, wherein
Anode of the anode of the diode D1 respectively with the first input end of the Voltage stabilizing module and the diode D2 connects
It connects, the cathode of the diode D1 is connect with the anode of the diode D3；The diode D3 anode through the 5th capacitor with
The first end of the receiving coil connects, and the cathode of the diode D3 is connect with the second input terminal of the Voltage stabilizing module；Institute
The cathode for stating diode D4 is connect with the cathode of the diode D3, the diode D4 anode respectively with the diode D2
Cathode and the receiving coil second end connection.
3. wireless charging receiver according to claim 2, which is characterized in that
The diode D1, the diode D2, the diode D3 and the diode D4 are silicon-based modifying Ge Schottky
Diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228817.0U CN209562217U (en) | 2018-12-28 | 2018-12-28 | A kind of wireless charging receiver for miniaturized electronics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228817.0U CN209562217U (en) | 2018-12-28 | 2018-12-28 | A kind of wireless charging receiver for miniaturized electronics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209562217U true CN209562217U (en) | 2019-10-29 |
Family
ID=68304040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822228817.0U Expired - Fee Related CN209562217U (en) | 2018-12-28 | 2018-12-28 | A kind of wireless charging receiver for miniaturized electronics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209562217U (en) |
-
2018
- 2018-12-28 CN CN201822228817.0U patent/CN209562217U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191029 Termination date: 20201228 |