CN103730932B - Wireless charging system - Google Patents
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- CN103730932B CN103730932B CN201310710783.8A CN201310710783A CN103730932B CN 103730932 B CN103730932 B CN 103730932B CN 201310710783 A CN201310710783 A CN 201310710783A CN 103730932 B CN103730932 B CN 103730932B
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Abstract
The invention relates to a wireless charging system which comprises a transmitter and a receiver. The transmitter comprises an oscillator, an amplifier and a transmitting coil module. An alternating-current signal generated by the oscillator is amplified by the amplifier, and then the amplified alternating-current signal is generated. The amplified alternating-current signal generates a magnetic field with the near-field communication frequency after flowing through the transmitting coil module. A receiving coil module of the receiver generates an alternating current under the action of magnetic field coupling and coverts the alternating current into a direct voltage under the action of a rectification module and a voltage stabilization module so as to charge a charging battery. The magnetic field frequency generated by the transmitting coil module is the near-field communication frequency. The magnetic field can generate an electromagnetic signal to be communicated with other devices, and can also interact with the receiving coil module on the receiver so as to charge the charging battery, so that the cost is lower; meanwhile, the current generated after the coupling action of the receiving coil module and the transmitting coil module is smaller, and the wireless charging system is applicable to a miniaturization electronic device.
Description
Technical field
The present invention relates to wireless charging technical field, particularly relate to a kind of wireless charging system.
Background technology
Along with the various electronic equipment of development of science and technology is applied increasingly extensive in people's daily life, and electronics
The discharge and recharge of the upper rechargeable battery used of equipment (such as dynamic token) becomes focus of attention, existing skill
In art, general employing USB line charges, the most portable；And electronic equipment is charged by USB line
Time, need to arrange on an electronic device USB interface, be unfavorable for waterproof, the antistatic design of electronic equipment,
USB interface is mechanical connection manner simultaneously, repeatedly easily occurs the situation of loose contact after plug.
For above-mentioned technical problem, prior art proposes wireless charging system, including emitter and receptor,
Emitter is made up of power supply changeover device, driver, transmitting coil, voltage and current detection and controller,
Receptor is made up of receiving coil, rectification module, VRM Voltage Regulator Module and controller, and electric power is by sending out
The coupled magnetic field formed between ray circle and receiving coil is transmitted, and this coupled magnetic field is by alternating current
Flowing and formed through emitter, if receiving coil is closer to, the field line of major part coupled magnetic field can coupling
Being bonded to receiving coil and form alternating current, its rectification can be formed DC voltage, this emitter and receptor are adopted
Using QI standard, need according to standard coiling, cost is high, and charging current is relatively big, is not suitable for little
On type electronic equipment, the battery of low capacity carries out wireless charging.
Summary of the invention
The main object of the present invention is to provide a kind of wireless charging system, it is intended to reduce wireless charging system
While cost, reduce charging current, reduce the volume of wireless charging system, it is simple to electronic equipment is just
Taking designs.
The present invention proposes a kind of wireless charging system, including the emitter electrically connected with power supply and with charging
The receptor of battery electrical connection, described emitter includes the agitator being sequentially connected electrically, amplifier and sends out
Penetrate coil module；Receiving coil module that described receptor includes being sequentially connected electrically, rectification module and steady
Die block；The input of described agitator is connected with the outfan of power supply, outfan and the input of amplifier
End connects；Two outfans of described amplifier respectively with two inputs pair of described transmitting coil module
Should connect；Two outfans of described receiving coil module respectively with two inputs of described rectification module
Corresponding connect, two outfans of described rectification module respectively with two inputs pair of described Voltage stabilizing module
Should connect, the outfan of described Voltage stabilizing module is connected with described rechargeable battery, wherein:
The amplified device of AC signal that described agitator produces sends to transmitting coil module after amplifying, described
Transmitting coil module produces the magnetic field that frequency is near-field communication frequency, and described receiving coil module is at described
Penetrate under the effect in the magnetic field that coil module produces, produce current signal and rectified module and voltage stabilizing mould
After the rectifying and voltage-stabilizing effect of block, being converted into direct current signal, this DC signal output to rechargeable battery is to charging
Battery is charged.
Preferably, described receiving coil module includes being connected between two inputs of described rectification module
Receiving coil, described receiving coil is arranged at the circuit at described receptor place in the way of PCB layout
On plate.
Preferably, described receptor also includes the charging protecting module being connected with described rechargeable battery, described
Charging protecting module is used for detecting battery electric quantity and producing cue when battery electric quantity is full of.
Preferably, described agitator include the first electric capacity, the second electric capacity, crystal oscillator, the first resistance, second
Resistance, the first phase inverter and the second phase inverter, wherein:
First end of described crystal oscillator is through described first capacity earth, and the second end is through described second capacity earth；
The input of described first phase inverter is connected with the first end of described crystal oscillator, the output of described first phase inverter
End is divided into two-way, and road first resistance is connected with the second end of crystal oscillator, another road and the second phase inverter
Input connects；The outfan of described second phase inverter is connected with described amplifier；Described second resistance one
End is connected with the input of described first phase inverter, and the other end is connected with the second end of described crystal oscillator.
Preferably, described amplifier include the 3rd phase inverter, the 4th phase inverter, the 5th phase inverter, the 3rd
Resistance, the 4th resistance, metal-oxide-semiconductor, the 3rd electric capacity, the 4th electric capacity, variable capacitance and the 5th resistance,
Wherein:
The input of described 3rd phase inverter and the outfan of the second phase inverter connect, and outfan is with described
The grid of metal-oxide-semiconductor connects；Described 3rd phase inverter, the 4th phase inverter and the 5th phase inverter are in parallel；Institute
The drain electrode stating metal-oxide-semiconductor is connected with the grid of described metal-oxide-semiconductor through described 3rd resistance, described metal-oxide-semiconductor
Grid through described 4th resistance eutral grounding, the source ground of described metal-oxide-semiconductor；Described 3rd electric capacity one end,
One end of described variable capacitance, one end of described 5th resistance, one end of described 4th electric capacity, described
The first input end penetrating coil module interconnects two-by-two；The other end of described 3rd electric capacity divides two-way, a road with
The drain electrode of described metal-oxide-semiconductor connects, a road and described transmitting coil module the second input be connected；Institute
State the other end of variable capacitance and described transmitting coil module the second input be connected；Described 5th electricity
The other end of resistance is connected with power input；The other end ground connection of described 4th electric capacity.
Preferably, described transmitting coil module includes transmitting coil, described transmitting coil with described can power transformation
Hold parallel connection.
Preferably, described receiving coil module also includes the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, its
In:
Two-way is divided in described 5th electric capacity one end, and a road is connected with the first end of described receiving coil, another road
It is connected with the second end of described receiving coil through the 6th electric capacity, the described 5th electric capacity other end and described rectification
The first input end of module connects；Described 7th electric capacity one end is connected with the second end of described receiving coil,
The other end is connected with the second input of described rectification module.
Preferably, described rectification module include the first diode, the second diode, the 3rd diode and
4th diode, wherein:
The positive pole of described first diode divides two-way, and a road is connected with the first input end of described Voltage stabilizing module,
Another road is connected with the positive pole of described second diode, the negative pole of described first diode and the described 3rd 2
The positive pole of level pipe connects；The positive pole of described 3rd diode is through described 5th electric capacity and described receiving coil
First end connects, and the described negative pole of the 3rd diode is connected with the second input of described Voltage stabilizing module；Institute
The negative pole of the negative pole and described 3rd diode of stating the 4th diode is connected, the positive pole of described 4th diode
Dividing two-way, a road is connected with the negative pole of described second diode, another road and the second of described receiving coil
End connects.
Preferably, described Voltage stabilizing module include the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the 6th resistance,
Stabilivolt and audion, wherein:
The colelctor electrode of described audion is connected with described 8th electric capacity, the base stage of described audion with described surely
The negative pole of pressure pipe connects, and the emitter stage of described triode divides two-way, and a road is connected with described rechargeable battery,
9th capacity earth described in another Lu Yujing；The negative pole of described stabilivolt is connected with described 6th resistance, institute
State the plus earth of stabilivolt；Described 8th electric capacity one end connects through the negative pole of described 6th resistance with stabilivolt
Connect, other end ground connection；Described tenth electric capacity is in parallel with described 8th electric capacity.
Preferably, described receptor is arranged in information safety devices.
The present invention propose wireless charging system, including emitter and receptor, emitter include agitator,
Amplifier and transmitting coil module, the amplified device of AC signal that agitator produces produces after amplifying and amplifies
AC signal, the AC signal of amplification flow through transmitting coil module produce frequency be near-field communication frequency
Magnetic field, under the effect of magnetic field coupling, receiving coil module produces alternating current, and at rectification module with steady
Under the effect of die block, alternating current is converted to DC voltage with to rechargeable battery charging, transmitting coil mould
The field frequency that block produces is near-field communication frequency, and this magnetic field both can produce electromagnetic signal and miscellaneous equipment
Communicating, can interact to be charged rechargeable battery with the coil on receptor again, cost is relatively
Low；Receiving coil module is with to send the electric current produced after coil module coupling less simultaneously, it is adaptable to
The electronic equipment of miniaturization；Further, the coil of receptor is realized by PCB layout, need not be independent
Coiling, while reducing cost, is more convenient for reducing the miniaturization of volume, beneficially electronic equipment
Design.
Accompanying drawing explanation
Fig. 1 is the structural representation of wireless charging system of the present invention；
Fig. 2 is the circuit diagram of the emitter in wireless charging system of the present invention；
Fig. 3 is the circuit diagram of the receptor in wireless charging system of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment is described further with regard to technical scheme.Should
Understanding, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
With reference to the structural representation that Fig. 1, Fig. 1 are wireless charging system preferred embodiment of the present invention.
The present embodiment proposes a kind of wireless charging system, including the emitter 10 electrically connected with power supply and with
The receptor 20 of rechargeable battery electrical connection, agitator 11 that described emitter 10 includes being sequentially connected electrically,
Amplifier 12 and transmitting coil module 13；Described receptor 20 includes the receiving coil being sequentially connected electrically
Module 21, rectification module 22 and Voltage stabilizing module 23；The input of described agitator 11 is defeated with power supply
Going out end to connect, outfan is connected with the input of amplifier 12；Two outfans of described amplifier 12
Connection corresponding with two inputs of described transmitting coil module 13 respectively；Described receiving coil module 21
Two outfans respectively corresponding with two inputs of described rectification module 22 connect；Described rectification module
Two outfans of 22 are corresponding with two inputs of described Voltage stabilizing module 23 respectively to be connected, described voltage stabilizing mould
The outfan of block 23 is connected, wherein with described rechargeable battery 30:
The ac voltage signal amplified device 12 that described agitator 11 produces sends to transmitting coil after amplifying
Module 13, the magnetic field that frequency is near-field communication frequency that described transmitting coil module 13 produces, described reception
Coil module 21, under the effect in the magnetic field that described transmitting coil module 13 produces, produces current signal also
And after the rectifying and voltage-stabilizing effect of rectified module 22 and Voltage stabilizing module 23, it is converted into DC current, should
Rechargeable battery 30 is charged by DC current output to rechargeable battery 30.
In the present embodiment, the frequency that transmitting coil module 13 produces is preferably 13.56MHZ, due to general
The frequency of logical near-field communication electromagnetic signal is 13.56MHZ, then transmitting coil module 13 is produced magnetic field
The 13.56MHZ being set to so that this transmitting coil module 13 both can be charged, can produce again electromagnetism
Signal communicates with other device.
In the present embodiment, receptor may be disposed on the equipment needing to carry out wireless charging, in this enforcement
In example, this equipment is preferably the information safety devices that charging current is less, such as electronic signature device and dynamically order
Board.
Further, described receiving coil module 21 include two that are connected to described rectification module 22 defeated
Enter end between receiving coil L2, described receiving coil L2 be arranged in the way of PCB layout described in connect
Receive on the circuit board at device 20 place.
Receiving coil L2 is arranged in the way of PCB layout on the circuit board at described receptor 20 place,
Need not independent coiling, while reducing cost, be more convenient for reducing volume, beneficially electronic equipment
Miniaturization Design.
Further, described receptor 20 also includes the charge protection mould being connected with described rechargeable battery 30
Block 24, described charging protecting module 24 is used for detecting rechargeable battery 30 electricity and at rechargeable battery 30 electricity
Cue is produced when being full of.This charging protecting module 24 can charge at connected rechargeable battery 30
After completing, produce cue (such as optical signal and acoustical signal etc.) to protect rechargeable battery 30, and
And saves energy.
The wireless charging system that the present invention proposes, including emitter 10 and receptor 20, emitter 10 wraps
Include agitator 11, amplifier 12 and transmitting coil module 13, the AC signal warp that agitator 11 produces
Amplifier 12 produces the AC signal of amplification after amplifying, the AC signal of amplification flows through transmitting coil module 13
Producing the magnetic field that frequency is near-field communication frequency, under the effect of magnetic field coupling, receiving coil module 21 produces
Alternating current, and under the effect of rectification module 22 and Voltage stabilizing module 23, alternating current is converted to direct current
Electric current is to charge to rechargeable battery 30, and the field frequency that transmitting coil module 13 produces is near-field communication frequency
Rate, this magnetic field both can produce electromagnetic signal and communicate with miscellaneous equipment, again can with on receptor 20
Receiving coil module 21 interacts to be charged rechargeable battery 30, and cost is relatively low；Receive simultaneously
Coil module 21 is with to send the electric current produced after coil module 13 coupling less, it is adaptable to miniaturization
Electronic equipment；Further, the receiving coil L2 on receptor 20 is realized by PCB layout, no
Use independent coiling, while reducing cost, be more convenient for reducing volume, beneficially electronic equipment
Miniaturization Design.
With reference to the circuit diagram that Fig. 2, Fig. 2 are the emitter 10 in wireless charging system of the present invention.
In the present embodiment, described agitator 11 include the first electric capacity C1, the second electric capacity C2, crystal oscillator Y,
First resistance R1, the second resistance R2, the first phase inverter U1 and the second phase inverter U2, wherein:
First end of described crystal oscillator Y is through described first electric capacity C1 ground connection, and the second end is through described second electric capacity
C2 ground connection；The input of described first phase inverter U1 is connected with first end of described crystal oscillator Y, and described
The outfan of one phase inverter U1 is divided into two-way, and second end of road a first resistance R1 and crystal oscillator Y is connected,
Another road is connected with the input of the second phase inverter U2；The outfan of described second phase inverter U2 is with described
Amplifier 12 connects；Described second resistance R2 one end is connected with the input of described first phase inverter U1,
The other end is connected with second end of described crystal oscillator Y.
Power supply signal produces square-wave signal under the effect of crystal oscillator Y, the first phase inverter U1 and of series connection
Two phase inverter U2 form the square-wave signal of relatively standard after square-wave signal is carried out shaping.
In the present embodiment, described amplifier 12 include the 3rd phase inverter U3, the 4th phase inverter U4,
Five phase inverter U5, the 3rd resistance R3, the 4th resistance R4 and metal-oxide-semiconductor Q1, wherein:
The outfan of the input of described 3rd phase inverter U3 and the second phase inverter U2 connects, outfan with
The grid of described metal-oxide-semiconductor Q1 connects；Described 3rd phase inverter U3, the 4th phase inverter U4 and the 5th
Phase inverter U5 is in parallel；The drain electrode of described metal-oxide-semiconductor Q1 is through described 3rd resistance R3 and described metal-oxide-semiconductor
The grid of Q1 connects, and the grid of described metal-oxide-semiconductor Q1 is through described 4th resistance R4 ground connection, described MOS
The source ground of pipe Q1, described 3rd electric capacity C3 one end, one end of described variable capacitance C5, described
The of one end of 5th resistance R5, one end of described 4th electric capacity C4 and described transmitting coil module 13
One input interconnects two-by-two；The other end of described 3rd electric capacity C3 divides two-way, a road and described metal-oxide-semiconductor
The drain electrode of Q1 connects, and another road is connected with the second input of described transmitting coil module；Described can power transformation
The other end holding C5 is connected with the second input of described transmitting coil module 13, described 5th resistance C5
The other end be connected with power input Vcc, the other end ground connection of described 4th electric capacity C4.
Described transmitting coil module 13 include transmitting coil L1, described transmitting coil L1 with described can power transformation
Hold C4 in parallel.
In the present embodiment, on the circuit board in transmitting coil L1 coiling and emitter 10, need not be according to
Standard coiling, reduces cost, and antenna can be revised according to demand, arranges flexibly, need not be independent
The coil of coiling, the beneficially Miniaturization Design of emitter 10 are set, and make emitter 10 be easy to take
Band.
The signal of the 3rd phase inverter U3, the 4th phase inverter U4 and the 5th phase inverter U5 input is square wave
Signal, has high-voltage signal also to have low-voltage signal；As the 3rd phase inverter U3, the 4th phase inverter U4 and
When the signal of five phase inverter U5 inputs is high-voltage signal, by the 3rd phase inverter U3, the 4th phase inverter U4
And the 5th phase inverter U5 inverting function output low-voltage signal, now due to the grid of metal-oxide-semiconductor Q1
For low-voltage, metal-oxide-semiconductor Q1 ends, described 3rd electric capacity C3 electric discharge, and transmitting coil L1 energy storage is produced
Magnetisation field；And when the 3rd phase inverter U3, the 4th phase inverter U4 and the letter of the 5th phase inverter U5 input
When number being low-voltage signal, by the 3rd phase inverter U3, the 4th phase inverter U4 and the 5th phase inverter U5
Inverting function output high-voltage signal, be now high voltage due to the grid of metal-oxide-semiconductor Q1, metal-oxide-semiconductor
Q1 turns on, described 3rd electric capacity C3 charging, and transmitting coil L1 produces magnetic field equally, to ensure to launch line
Circle L1 produces stable magnetic field.
With reference to the circuit diagram that Fig. 3, Fig. 3 are the receptor 20 in wireless charging system of the present invention.
Described receiving coil module 21 also includes the 5th electric capacity C5, the 6th electric capacity C6 and the 7th electric capacity
C7, wherein:
Two-way is divided in described 5th electric capacity C5 one end, and a road is connected with first end of described receiving coil L2,
Second end of another Lu Jing six electric capacity C6 and described receiving coil L2 is connected, described 5th electric capacity C5
The other end is connected with the first input end of described rectification module 22；Described 7th electric capacity C7 one end is with described
Second end of receiving coil L2 connects, and the other end is connected with the second input of described rectification module；Described
Second end of receiving coil L2 is connected with described rectification module 22.
Described rectification module 22 includes the first diode D1, the second diode D2, the 3rd diode D3
And the 4th diode, wherein:
The positive pole of described first diode D1 divides two-way, and a road is connected with described Voltage stabilizing module 23, another
Road is connected with described second diode D2, the negative pole of described first diode D1 and described 3rd diode
Positive pole connect；The positive pole of described 3rd diode D3 is through described 5th electric capacity C5 and described receiving coil
First end of L2 connects, and the negative pole of described 3rd diode D3 is connected with described Voltage stabilizing module 23；Described
The negative pole of the 4th diode D4 is connected with the negative pole of described 3rd diode D3, described 4th diode
The positive pole of D4 divides two-way, and a road is connected with the negative pole of described second diode D2, and another road connects with described
Second end of take-up circle L2 connects.
Described Voltage stabilizing module 23 include the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the 6th
Resistance R6, stabilivolt D5 and audion Q2, wherein:
The colelctor electrode of described audion Q2 is connected with described 8th electric capacity C8, the base of described audion Q2
Pole is connected with the negative pole of described stabilivolt D5, and the emitter stage of described audion Q2 divides two-way, a road and institute
State rechargeable battery 30 to connect, the 9th electric capacity C9 ground connection described in another Lu Yujing；Described stabilivolt D5's is negative
Pole is connected with described 6th resistance R6, the plus earth of described stabilivolt D5；Described 8th electric capacity C8
One end is connected through the negative pole of described 6th resistance R6 and stabilivolt D5, other end ground connection；Described tenth electricity
Hold C10 in parallel with described 8th electric capacity C8.
Receiving coil L2 produces alternating current under the coupling in magnetic field produced by transmitting coil L1,
After this alternating current the 5th electric capacity C5, the 6th electric capacity C6 and the 7th electric capacity C7 carry out shaping, by
One diode D1, the second diode D2, the 3rd diode D3 and the rectified action shape of the 4th diode
Becoming DC current, this DC current is stable by the base voltage of triode after the pressure stabilization function of stabilivolt D5
Be 5V for the voltage of stabilivolt D5, the such as burning voltage of stabilivolt D5, then the base stage of audion Q2
Voltage corresponds to 5V, to maintain the real-time conduction of audion Q2.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention,
Every equivalent structure transformation utilizing description of the invention and accompanying drawing content to be made, or directly or indirectly use
In the technical field that other are relevant, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (7)
1. a wireless charging system, including the emitter electrically connected with power supply and the receptor electrically connected with rechargeable battery, it is characterised in that described emitter includes agitator, amplifier and the transmitting coil module being sequentially connected electrically；Described receptor includes receiving coil module, rectification module and the Voltage stabilizing module being sequentially connected electrically；The input of described agitator is connected with the outfan of power supply, and outfan is connected with the input of amplifier；Two outfans of described amplifier are corresponding with two inputs of described transmitting coil module respectively to be connected；Two outfans of described receiving coil module are corresponding with the two of described rectification module inputs respectively to be connected, two outfans of described rectification module are corresponding with the two of described Voltage stabilizing module inputs respectively to be connected, the outfan of described Voltage stabilizing module is connected with described rechargeable battery, wherein:
The amplified device of AC signal that described agitator produces sends to transmitting coil module after amplifying, described transmitting coil module produces the magnetic field that frequency is near-field communication frequency, described receiving coil module is under the effect in the magnetic field that described transmitting coil module produces, after producing the rectifying and voltage-stabilizing effect of current signal and rectified module and Voltage stabilizing module, being converted into direct current signal, rechargeable battery is charged by this DC signal output to rechargeable battery；
Described receiving coil module includes the receiving coil being connected between two inputs of described rectification module, and described receiving coil is arranged on the circuit board at described receptor place in the way of PCB layout；
Described receptor is arranged in information safety devices；
Described agitator includes the first electric capacity, the second electric capacity, crystal oscillator, the first resistance, the second resistance, the first phase inverter and the second phase inverter, wherein:
First end of described crystal oscillator is through described first capacity earth, and the second end is through described second capacity earth；The input of described first phase inverter is connected with the first end of described crystal oscillator, and the outfan of described first phase inverter is divided into two-way, and road first resistance is connected with the second end of crystal oscillator, and another road is connected with the input of the second phase inverter；The outfan of described second phase inverter is connected with described amplifier；Described second resistance one end is connected with the input of described first phase inverter, and the other end is connected with the second end of described crystal oscillator.
System the most according to claim 1, it is characterised in that described receptor also includes the charging protecting module being connected with described rechargeable battery, described charging protecting module is used for detecting battery electric quantity and producing cue when battery electric quantity is full of.
System the most according to claim 1, it is characterized in that, described amplifier includes the 3rd phase inverter, the 4th phase inverter, the 5th phase inverter, the 3rd resistance, the 4th resistance, metal-oxide-semiconductor, the 3rd electric capacity, the 4th electric capacity, variable capacitance and the 5th resistance, wherein:
The input of described 3rd phase inverter and the outfan of the second phase inverter connect, and outfan is connected with the grid of described metal-oxide-semiconductor；Described 3rd phase inverter, the 4th phase inverter and the 5th phase inverter are in parallel；The drain electrode of described metal-oxide-semiconductor is connected with the grid of described metal-oxide-semiconductor through described 3rd resistance, and the grid of described metal-oxide-semiconductor is through described 4th resistance eutral grounding, the source ground of described metal-oxide-semiconductor；Described 3rd electric capacity one end, one end of described variable capacitance, one end of described 5th resistance, one end of described 4th electric capacity, the first input end of described transmitting coil module interconnect two-by-two；The other end of described 3rd electric capacity divides two-way, and a road is connected with the drain electrode of described metal-oxide-semiconductor, a road and described transmitting coil module the second input be connected；The other end of described variable capacitance and described transmitting coil module the second input be connected；The other end of described 5th resistance is connected with power input；The other end ground connection of described 4th electric capacity.
System the most according to claim 3, it is characterised in that described transmitting coil module includes transmitting coil, described transmitting coil is in parallel with described variable capacitance.
System the most according to claim 1, it is characterised in that described receiving coil module also includes the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, wherein:
Two-way is divided in described 5th electric capacity one end, and a road is connected with the first end of described receiving coil, and another Lu Jing six electric capacity is connected with the second end of described receiving coil, and the described 5th electric capacity other end is connected with the first input end of described rectification module；Described 7th electric capacity one end is connected with the second end of described receiving coil, and the other end is connected with the second input of described rectification module.
System the most according to claim 5, it is characterised in that described rectification module includes the first diode, the second diode, the 3rd diode and the 4th diode, wherein:
The positive pole of described first diode divides two-way, and a road is connected with the first input end of described Voltage stabilizing module, and another road is connected with the positive pole of described second diode, and the negative pole of described first diode is connected with the positive pole of described 3rd diode；The positive pole of described 3rd diode is connected with the first end of described receiving coil through described 5th electric capacity, and the described negative pole of the 3rd diode is connected with the second input of described Voltage stabilizing module；The negative pole of described 4th diode is connected with the negative pole of described 3rd diode, and the positive pole of described 4th diode divides two-way, and a road is connected with the negative pole of described second diode, and another road is connected with the second end of described receiving coil.
System the most according to claim 6, it is characterised in that described Voltage stabilizing module includes the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the 6th resistance, stabilivolt and audion, wherein:
The colelctor electrode of described audion is connected with described 8th electric capacity, and the base stage of described audion is connected with the negative pole of described stabilivolt, and the emitter stage of described audion divides two-way, and a road is connected with described rechargeable battery, the 9th capacity earth described in another Lu Yujing；The negative pole of described stabilivolt is connected with described 6th resistance, the plus earth of described stabilivolt；Described 8th electric capacity one end is connected with the negative pole of stabilivolt through described 6th resistance, other end ground connection；Described tenth electric capacity is in parallel with described 8th electric capacity.
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| CN201310710783.8A CN103730932B (en) | 2013-12-20 | 2013-12-20 | Wireless charging system |
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|---|---|---|---|
| CN201310710783.8A CN103730932B (en) | 2013-12-20 | 2013-12-20 | Wireless charging system |
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| CN103730932B true CN103730932B (en) | 2017-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104158308A (en) * | 2014-09-01 | 2014-11-19 | 苏州凯丰电子电器有限公司 | Wireless charger |
| CN104319830B (en) * | 2014-10-09 | 2017-02-01 | 深圳市安普盛科技有限公司 | Near field communication (NFC)-based charging system and method |
| CN107069992A (en) * | 2017-04-09 | 2017-08-18 | 深圳市景程信息科技有限公司 | Remote-wireless charging system |
| CN107069993A (en) * | 2017-04-09 | 2017-08-18 | 深圳市景程信息科技有限公司 | Device for converting electric energy based on wireless receiving |
| CN107394903A (en) * | 2017-08-17 | 2017-11-24 | 华昕通源创新科技有限公司 | A kind of straight ripple wireless charging system |
| CN109862641A (en) * | 2017-11-30 | 2019-06-07 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking pot, wireless power supply system and its control method for electric cooking pot |
| CN108282030A (en) * | 2018-01-29 | 2018-07-13 | 重庆理工大学 | A kind of adaptive wireless charging method and device |
| CN108681268A (en) * | 2018-03-30 | 2018-10-19 | 苏州诺登德智能科技有限公司 | A kind of drive ground pressure acquisition system |
| CN109635604B (en) * | 2019-01-17 | 2023-12-26 | 深圳和而泰智能控制股份有限公司 | Near field identification circuit and system |
| CN110336387A (en) * | 2019-05-24 | 2019-10-15 | 深圳华大北斗科技有限公司 | Wireless headset charging reception system and wireless charging send system |
| CN113036935A (en) * | 2021-03-15 | 2021-06-25 | Oppo广东移动通信有限公司 | Intelligent ring, mobile terminal, charging system and method based on near field communication |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201504123U (en) * | 2009-09-18 | 2010-06-09 | 陕西伏特龙电力有限公司 | Vehicle-mounted non-contact power supply |
| CN101879074A (en) * | 2010-07-01 | 2010-11-10 | 深圳市开立科技有限公司 | Wireless power ultrasonic diagnostic apparatus |
| CN203707819U (en) * | 2013-12-20 | 2014-07-09 | 深圳市文鼎创数据科技有限公司 | Wireless charging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5641891B2 (en) * | 2009-11-13 | 2014-12-17 | パナソニック株式会社 | Charging and feeding system for vehicles |
| CN103023160A (en) * | 2012-12-19 | 2013-04-03 | 哈尔滨工业大学 | Wireless power supply system used for printed circuit boards |
-
2013
- 2013-12-20 CN CN201310710783.8A patent/CN103730932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201504123U (en) * | 2009-09-18 | 2010-06-09 | 陕西伏特龙电力有限公司 | Vehicle-mounted non-contact power supply |
| CN101879074A (en) * | 2010-07-01 | 2010-11-10 | 深圳市开立科技有限公司 | Wireless power ultrasonic diagnostic apparatus |
| CN203707819U (en) * | 2013-12-20 | 2014-07-09 | 深圳市文鼎创数据科技有限公司 | Wireless charging system |
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