CN103457362A - Wireless charging sending device, wireless charging system and wireless charging control method - Google Patents
Wireless charging sending device, wireless charging system and wireless charging control method Download PDFInfo
- Publication number
- CN103457362A CN103457362A CN2012101804275A CN201210180427A CN103457362A CN 103457362 A CN103457362 A CN 103457362A CN 2012101804275 A CN2012101804275 A CN 2012101804275A CN 201210180427 A CN201210180427 A CN 201210180427A CN 103457362 A CN103457362 A CN 103457362A
- Authority
- CN
- China
- Prior art keywords
- module
- dispensing device
- control
- frequency
- wireless charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a wireless charging sending device, a wireless charging system and a charging control method thereof. The sending device comprises an emission coil used for emitting electricity energy of the sending device, an oscillating and frequency-modulating module used for enabling the emission coil to generate LC resonance and modulating the capacitance in the LC resonance so as to change the resonance frequency of the LC resonance, an emission end sampling module used for collecting voltage and currents of the sending device, a first control module used for controlling the resonance frequency of the LC resonance in the oscillating and frequency-modulating module and controlling the charging energy sending process according to the collected voltage and the collected currents of the sending device, the voltage of a receiving device and resonance frequency corresponding to the highest charging efficiency, a first communication module used for wireless communication between the sending device and the receiving device, and a power supply module. The sending device, the charging system and the charging control method can realize the adjustment of the resonance frequency of the LC resonance so as to have the advantage of improving the charging efficiency of the charging system.
Description
Technical field
The present invention relates to a kind of wireless charging field, relate in particular to a kind of dispensing device, wireless charging system and wireless charging control method thereof of wireless charging.
Background technology
At present, the range of application of mobile terminal is more and more extensive, and it has powerful function and fabulous convenience, for example mobile phone, IPAD, rechargeable 3D glasses, and it has abundant recreational, can see TV, online, singing etc.In the process of using mobile terminal, limitation due to battery capacity, the electric weight of battery will soon run out, the flying power of battery that for example is subject at present the mobile phone with Android system that the user warmly pursues is relatively poor, need to charge frequently, so need to often be with reserve battery or wired charger.A lot of mobile terminals need to be carried wired charger and charge the battery, and wired charger is wired and more loaded down with trivial details owing to being with, more very the person's is, different mobile terminals often needs the charger of specific different model to charge, therefore, many users such as the people who goes on business often will be with the charger of the mobile terminals such as the mechanical, electrical brain of left-hand seat, shaver, and the wired charger of miscellaneous complexity brings great inconvenience to consumer's use.
So the loaded down with trivial details wireless charger that can allow the consumer reduce the charger of the constraint of electric wire and One's name is legion has obtained consumer's favor, it has market prospects preferably.Wireless charger mainly utilizes electromagnetic induction principle, referring to Fig. 1, its theory diagram that is wireless charging system in prior art, being provided with the transmission coil in wireless charging device sends for the energy by power supply, be provided with receiving coil in mobile terminal to be charged, by apply the electromagnetic field of electric current to change of variation in sending coil, the electromagnetic field couples changed is to receiving coil, so produced charging current in receiving coil, thereby realized the wireless charging to mobile terminal.
But, the present inventor prior art is studied and practice process in find: the charged state of the dispensing device of existing wireless charging can be subject to dispensing device self and the external influence thereof of wireless charging, so that its charge efficiency is lower.For example dispensing device can be applied to the receiving system of various ways, when the relative position of receiving system and dispensing device changes, it all can make the charge efficiency of dispensing device and receiving system change, and the electric energy that dispensing device is launched may be reflected or part loses with the form of coil heating.So there is more energy dissipation in wireless charging system at present, its charge efficiency is generally lower.
Be understandable that, the statement of this part only provides background information related to the present invention, may form or not form so-called prior art.
Summary of the invention
Technical problem to be solved by this invention is the defect lower for the charge efficiency of wireless charging system in prior art, provides a kind of and can feed back charged state and can regulate the dispensing device of resonance frequency with the wireless charging of raising charge efficiency.
The technical solution adopted for the present invention to solve the technical problems is to provide a kind of dispensing device of wireless charging, and it mainly comprises:
Transmitting coil, for launching the electric energy of dispensing device;
Vibration and frequency modulation module, produce LC resonance for transmitting coil, and regulate the humorous center of percussion capacitance of LC to change the resonance frequency of LC resonance;
The transmitting terminal sampling module, for voltage and the electric current that gathers described dispensing device;
The first control module, for the resonance frequency according to the predetermined described vibration of mode of frequency regulation regulating and controlling and frequency modulation module LC resonance, and according to the high recharge efficiency of the voltage of voltage, electric current and the receiving system of the dispensing device collected and current stabilization corresponding resonance frequency and control the energy process of transmitting of charging.
First communication module, for the radio communication of data between dispensing device and receiving system;
Power module, provide required driving power for giving described dispensing device.
In the dispensing device of above-mentioned wireless charging, described the first control module comprises:
The translation operation module, carry out analog-to-digital conversion for the data of the dispensing device by collecting and receiving system, and calculate charge efficiency according to data after analog-to-digital conversion, and compare the high recharge efficiency in all charge efficiencies;
Memory module, for storing above-mentioned charge efficiency and capacitance corresponding to this charge efficiency;
The first single-chip microcomputer, for controlling the resonance frequency of above-mentioned vibration and frequency modulation module according to predetermined mode of frequency regulation and making vibration and frequency modulation module stability export capacitance corresponding to high recharge efficiency, and control the energy process of transmitting of charging.
In the dispensing device of above-mentioned wireless charging, the energy process of transmitting of described control charging comprises: control and provide each module required driving power, and control the start and stop that energy sends.
In the dispensing device of above-mentioned wireless charging, described predetermined mode of frequency regulation refers to that take the resonance frequency of 110KHZ in the interval of 110KHZ-205KHZ is benchmark, and increases progressively resonance frequency with 1% to 1.5% speedup.
In the dispensing device of above-mentioned wireless charging, described vibration and frequency modulation module comprise:
The tunable capacitor module, for providing adjustable electric capacity and producing LC resonance with described transmitting coil;
Inversion module, be converted to and supply tunable capacitor module and transmitting coil to carry out the alternating current of resonance for the direct current to above-mentioned power module output;
The second control module, regulate the inversion of electric capacity and the control inversion module of described tunable capacitor module for the control signal according to described the first control module output.
In the dispensing device of above-mentioned wireless charging, described tunable capacitor module is the capacitance matrix that a plurality of electric capacity forms.
In the dispensing device of above-mentioned wireless charging, described the second control module comprises:
Switch matrix, for the above-mentioned capacitance matrix electric capacity of corresponding control access circuit whether;
Pulse width modulation module, provide the required pulse signal of inversion module to drive inversion module for the control signal according to the first control module output;
Second singlechip, according to the control signal of the first control module output control pulse-width modulation circuit work, and the control switch matrix in the break-make of each switch.
In order better to solve the technical problem, the present invention also provides a kind of wireless charging system, comprises dispensing device and receiving system, and described receiving system comprises:
Receiving coil, for carrying out the electromagnetic induction coupling with the dispensing device transmitting coil;
Rectification and communication module, for the AC rectification that receiving coil is received be after direct current to the charging load charging, and and dispensing device carry out radio communication;
The receiving terminal sampling module, for voltage and the electric current that gathers described receiving system;
Described dispensing device is above-mentioned dispensing device.
In order better to solve the problems of the technologies described above, the present invention also provides a kind of charge control method of wireless charging system, and it comprises the following steps successively:
S1, with a reference frequency, start charging process;
S2, in predetermined resonant frequency range, control the humorous center of percussion capacitance of LC with the resonance frequency of regulating LC resonance in vibration and frequency modulation module voltage and the electric current that gathers voltage, electric current and the receiving system of dispensing device under this capacitance according to predetermined mode of frequency regulation;
S3, according to the above-mentioned data that collect, process and draw high recharge efficiency and optimum capacitance value corresponding to high recharge efficiency;
S4, control make vibration and frequency modulation module stability export above-mentioned optimum capacitance value, to stablize the LC resonance frequency.
The dispensing device of wireless charging provided by the invention, it controls capacitance in vibration and frequency modulation module to change the LC resonance frequency by the first control module, and by the electric current and voltage of transmitting terminal sampling module dynamic acquisition dispensing device, and the electric current and voltage of the receiving system come according to wireless transmission draws charge efficiency, then draw the high recharge efficiency in predetermined resonant frequency range by the first control module, and optimum capacitance value, thereby will vibrate and the frequency modulation module stability is operated under this high recharge efficiency state, and then can greatly improve the charge efficiency of wireless charging system.
The accompanying drawing explanation
Fig. 1 is the theory diagram of the wireless charging system that provides of prior art;
Fig. 2 is the theory diagram of the dispensing device of wireless charging system provided by the invention;
Fig. 3 is the theory diagram of the wireless charging system that provides of the embodiment of the present invention;
Fig. 4 is the structured flowchart of the dispensing device of the wireless charging system that provides of one embodiment of the present invention;
Fig. 5 is the structured flowchart of the receiving system of the wireless charging system that provides of one embodiment of the present invention;
Fig. 6 is the first control module and the peripheral structured flowchart thereof of the wireless charging system that provides of one embodiment of the present invention;
Fig. 7 is the theory diagram of vibration and frequency modulation module in the wireless charging system that provides of the embodiment of the present invention;
Fig. 8 is the structural representation of vibration and frequency modulation module in the wireless charging system that provides of the embodiment of the present invention;
Fig. 9 is the flow chart of the charge control method of wireless charging system provided by the invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The dispensing device of wireless charging provided by the invention mainly changes the LC resonance frequency in conjunction with the control to vibration and frequency modulation module so that the energy of dispensing device emission can better be utilized by the first control module, and then has improved charge efficiency.
Referring to shown in Fig. 2 to Fig. 8, the dispensing device of wireless charging provided by the invention comprises: for the transmitting coil 6 of the electric energy of launching dispensing device, for regulating the resonance frequency of LC resonance and making transmitting coil 6 produce vibration and the frequency modulation module 5 of LC resonance, for gathering the voltage of dispensing device and the transmitting terminal sampling module 2 of electric current, first communication module 4 for the radio communication of data between dispensing device and receiving system, for the power module 1 of the required driving power of each module of dispensing device is provided, also comprise the first control module 3 that whole dispensing device is controlled.The first control module 3 is connected between transmitting terminal sampling module 2 and vibration and frequency modulation module 5, its electric current and voltage for the resonance frequency according to predetermined mode of frequency regulation regulating and controlling vibration and frequency modulation module 5 LC resonance the dispensing device collected according to transmitting terminal sampling module 2 and receiving system carrys out the resonance condition of stable oscillation stationary vibration and frequency modulation module 5, make vibration and frequency modulation module 5 change the LC resonance frequency to optimum state, the electric energy gone out from LC resonance can the most effectively be transmitted to receiving system by transmitting coil 6.Particularly, the first control module 3 changes the resonance frequency of LC resonance according to predetermined mode of frequency regulation, and the work state information of collection dispensing device and receiving system, the first control module 3 draws the power output of dispensing device according to the information of the dispensing device collected, draw the input power of receiving system according to the information of the receiving system collected, and then draw charge efficiency, wherein, resonance frequency corresponding to high recharge efficiency is optimum resonance frequency, the first control module 3 is sent control information to vibration and frequency modulation module 5, so that the resonance frequency in vibration and frequency modulation module 5 is adjusted to identical with above-mentioned optimum resonance frequency.Thereby make vibration and frequency modulation module 5 be stabilized in electric energy that this optimum resonance frequency can make dispensing device emission the most received device receive, thereby make wireless charging system be held in the highest charge efficiency state.
In concrete enforcement, with reference to Fig. 7, vibration and frequency modulation module 5 can comprise: tunable capacitor module 20, inversion module 22 and the second control module 21.The electric capacity of tunable capacitor module 20 can be regulated, when capacitance adjustment arrives required capacitance, the LC resonance frequency that electric capacity and transmitting coil 6 form can make dispensing device work in optimum resonance frequency, thereby the energy after LC resonance can be launched, coil 6 is more effective to be launched.Inversion module 22, be converted to for the direct current to above-mentioned power module 1 output the alternating current that carries out resonance for tunable capacitor module 20 and transmitting coil 6.The second control module 21 is controlled by the inversion process that capacitance and the inversion module 22 of tunable capacitor module 20 are regulated in the instruction of the first control module 3.
Preferably, tunable capacitor module 20 is the capacitance matrix that a plurality of electric capacity forms; The second control module comprises: switch matrix, pulse width modulation module and second singlechip.Switch in switch matrix is corresponding one by one with the electric capacity in above-mentioned capacitance matrix, so that the access circuit whether of each electric capacity in the control capacitance matrix, it decides the final capacitance of tunable capacitor module 20 by controlling which electric capacity access circuit; Pulse width modulation module is for providing the required pulse signal of inversion module 22 to drive inversion module 22.Second singlechip according to the control signal of the first control module 3 output control pulse width modulation module work, and the control switch matrix in which switch closed or disconnect, it is mainly realized by program control.The technology that pulse width modulation module and inversion module 22 are well known to those skilled in the art, do not repeat them here.
The first control module 3 comprises translation operation module, memory module and the first single-chip microcomputer.Wherein, the data that the translation operation module collects dispensing device and receiving system are carried out analog-to-digital conversion, and according to the above-mentioned data that collect calculate input power, the charging system of power output, the receiving system of dispensing device charge efficiency (being the ratio of input power and power output), and relatively calculate the high recharge efficiency in charge efficiency.The capacitance of the humorous center of percussion of LC that the memory module charge efficiency that at least recording gauge is calculated and this charge efficiency are corresponding.The first single-chip microcomputer, it regulate to change the resonance frequency of LC resonance in vibration and frequency modulation module 5, when getting capacitance corresponding to high recharge efficiency, controls and makes vibration and stable this capacitance of output of frequency modulation module 5, with the stable resonant oscillation frequency.Simultaneously, the first single-chip microcomputer is also controlled the energy process of transmitting of whole charging.For example, control and provide each module required driving power, and control the start and stop that energy sends.The power supply of the conversion of power supply and inversion module 22 conversion in its controllable power module 1.Preferably, the first single-chip microcomputer also can connect LCD display module and host computer better to monitor the control charging process.
What deserves to be explained is, due to the alternating current of inversion module 22 output directly for making transmitting coil 6 and tunable capacitor module 20 electric capacity that the LC resonance occur, so, only has when resonance frequency approaches the frequency (being tranmitting frequency or the title charge frequency of transmitting coil 6) of inversion module 22 outputs most the maximization of charge efficiency in the dispensing device of guarantee equal state and the situation of receiving device.For example, in concrete enforcement, wireless charging standard code charge frequency is necessary for 110-205KHZ, so, the present invention's frequency modulation (adjusting resonance frequency) on one side gathers the charge efficiency under this resonance frequency on one side, the present invention is changed resonance frequency in vibration and frequency modulation module 5 in the scope of 110-205KHZ, finds out resonance frequency and can guarantee that when charge efficiency is the highest.Preferably, while changing in vibration and frequency modulation module 5 resonance frequency, the resonance frequency of 110KHZ of first take is benchmark, and making resonance frequency in vibration and frequency modulation module 5 is 110KHZ, and records charge efficiency under this state.Then, resonance frequency scope with 1% to 1.5% on the basis of 110KHZ is incremented to 205KHZ.More preferably, it to 205KHZ, accurately finds out optimum resonance frequency (i.e. resonance frequency high recharge efficiency under) to reach more fast with 1% speed increase.
The present invention also provides a kind of wireless charging system, and referring to Fig. 3, it comprises above-mentioned dispensing device, also comprises receiving system, and described receiving system comprises: receiving coil 9, for dispensing device transmitting coil 6, carrying out the electromagnetic induction coupling; Rectification and communication module 8, for the AC rectification that receiving coil 9 is received be after direct current to charging load 7 chargings, and and dispensing device carry out radio communication; Receiving terminal sampling module 10, for voltage and the electric current that gathers described receiving system.What deserves to be explained is, receiving terminal sampling module 10 can be installed on receiving coil 9 places, also can be installed on charging load 7 places, and in like manner, above-mentioned transmitting terminal sampling module 2 can be installed on transmitting coil 6 places, also can be installed on power module 1 place.Need to can there be the part loss in the power supply of exporting due to power module 1 through a series of processing, the electric energy that receiving coil 9 receives also can be subject to just offering charging load 7 chargings after some losses impact, so transmitting terminal sampling module 2 and receiving terminal sampling module 10 are installed on respectively to the charge efficiency that power module 1 place and charging load 7 places can better draw charging system.Above-mentioned power module 1 is powered to modules, for example give the first single-chip microcomputer, second singlechip, and transmitting terminal sampling module 2 its required driving DC voltage is provided, the driving voltage difference that each module is required, power module 1 comprises the modular converter that the civil power of for example 220V or other power supply are changed, it is well known to those skilled in the art, and does not repeat them here.
Preferably, wireless charging system also provides the device that charging process is protected.For example: charging system also comprises the temperature collect module be arranged on dispensing device and/or receiving system, the first switch that stops charging while reaching for excess temperature.Temperature collect module can be the common components such as temperature sensor.The first switch is normally off, the first controller compares safe temperature predetermined in the temperature that collects and single-chip microcomputer, when the temperature collected surpasses predetermined safety temperature, the first control module 3 output control signals disconnect the first switch, so that vibration and frequency modulation module 5 disconnect with transmitting coil 6.Wireless charging system also can comprise the second switch be arranged between rectification and communication module 8 and receiving coil 9, principle is same as above, when the voltage of the receiving system collected or electric current surpass predetermined safety value (overcharging), the first control module 3 output control signals disconnect second switch.The first switch and second switch play to stop charging and get final product to carry out charge protection, are understandable that, its installation site is not limited to technique scheme.Preferably, the first control module 3 and the first switch, second switch, transmitting terminal sampling module 2, and receiving terminal sampling module 10 between be provided with the electrical isolation module for the safety isolation, with the protection charging process.Above-mentioned the first switch, second switch, and the electrical isolation module be this area element commonly used or device, it is well known to those skilled in the art, and does not repeat them here.
The present invention also provides the charge control method of wireless charging system, and it mainly comprises the following steps successively:
S1, startup charging process;
S2, frequency modulation and sampling: in predetermined resonant frequency range, according to predetermined mode of frequency regulation, control the humorous center of percussion capacitance of LC with the resonance frequency of regulating LC resonance in vibration and frequency modulation module 5 voltage and the electric current that gathers voltage, electric current and the receiving system of dispensing device under this capacitance;
At present, in predetermined resonant frequency range, mainly refer to be that 110KHZ to 205KHZ is a frequency modulation and sampling period according to charge frequency in the wireless charging standard, regulate resonance frequency and make it change resonance frequency in certain proportion until the frequency range of 110KHZ to 205KHZ all is conditioned and exported.
S3, obtain the optimum capacitance value: according to the high recharge efficiency of the above-mentioned data acquisition collected and optimum capacitance value corresponding to high recharge efficiency;
S4, stablize the LC resonance frequency: control and make vibration and the above-mentioned optimum capacitance value of frequency modulation module 5 stable output, to stablize the LC resonance frequency.
Embodiment shown in Figure 9 illustrates charge control method provided by the invention.In this embodiment, predetermined mode of frequency regulation can be by the interval of 110KHZ-205KHZ, and the resonance frequency of 110KHZ of take is benchmark, and increases progressively resonance frequency with 1% to 1.5% scope.Its concrete charging control process is as follows: at first, by change vibrate and frequency modulation module 5 in the capacitance of LC resonance, start charging (this 110KHZ is reference frequency, its programming in being arranged on the first control module 3) while making its resonance frequency be 110KHZ; Then, gather now voltage and the electric current of voltage, electric current and the receiving system of dispensing device, and capacitance in regulating and controlling vibration and frequency modulation module 5, voltage and electric current that the frequency that makes LC resonance is 115KHZ voltage, electric current and the receiving system that records dispensing device under this frequency, then again regulating resonance frequency is 120KHZ, 125KHZ, changing resonance frequency record charged state at that time according to this increasing velocity, is a frequency modulation and sampling period until resonance frequency is adjusted to 205KHZ; And then, according to the electric current and voltage collected, draw high recharge efficiency and optimum capacitance value corresponding to high recharge efficiency, the capacitance under this high recharge efficiency of finally fixing output, thus charging system is stabilized under the operating state of high recharge efficiency.
Because the inductance value of transmitting coil 6 can change with environment, for example receiving system is placed in when more remote, receiving coil 9 can make the L value finely tune with the direct coupling of transmitting coil 6.So preferably, frequency modulation is to come capacitance matrix to change the humorous center of percussion capacitance of LC by adjusting, and then the resonance frequency of change LC resonance, to be adjusted to more accurately optimum charged state.
In concrete enforcement, step S2 also can comprise the temperature that gathers dispensing device and/or receiving system, and judges whether excess temperature in step S3, if excess temperature stops charging.For example, when the temperature got when the first controller surpasses predetermined temperature, it sends instruction and disconnects the first switch.Preferably, step S3 also can comprise according to the data of above-mentioned collection and judges whether to overcharge, if overcharge, stops charging.For example, when the voltage of the receiving system collected or electric current surpass predetermined safety value, the first control module 3 output orders make second switch disconnect stopping charging.
Again in conjunction with the embodiment shown in Fig. 2 to Fig. 8, the operation principle of dispensing device provided by the invention and charging system is described in detail as follows:
As shown in Figure 4, the transmitting terminal sampling module comprises: current monitoring circuit, and it is comprised of current sense resistor R1 and differential amplifier circuit; Electric voltage observation circuit, mainly by divider resistance R2, R3 forms potential-divider network; The output terminals A 1 of differential amplifier circuit is connected to the AD input A1 port of the first single-chip microcomputer by the electrical isolation module, the voltage of electric voltage observation circuit collection is connected to the AD input A2 of the first single-chip microcomputer by the electrical isolation module.Like this, can prevent potential-divider network and control the mutual interference of network phase, in order to obtain stable electric current and voltage value, can draw the power output of dispensing device according to this electric current and voltage value.In like manner, receiving terminal detects the electric current of receiving terminal by current monitoring resistance R 4 and amplifier, and the output terminals A 3 of differential amplifier circuit is connected to the AD input A3 port of the first single-chip microcomputer by the electrical isolation module; Divider resistance R5, R6 forms potential-divider network, and the voltage after dividing potential drop is connected to the AD input A4 of the first single-chip microcomputer by the electrical isolation module, draw the input power of receiving terminal according to the electric current and voltage of the receiving terminal detected.According to the variation of input power and power output, can monitor the charging change procedure of wireless charging network.
Illustrate that by specific embodiment transmitting terminal charging regulating strategy is as follows: resonance frequency is adjusted from the frequency separation of 110kHz～205kHz, when 110kHz ~ 175kHz frequency separation, take 110KHZ as basis, increase progressively resonance frequency with 1% ratio, when 175kHz ~ 205kHz frequency separation, with 2% ratio, increase progressively resonance frequency.Until frequency modulation and sampling period complete (be resonance frequency be incremented to 205KHZ from 110KHZ be a frequency modulation and sampling period), the capacitance while finding out high recharge efficiency, control stable this capacitance of output, with the stable resonant oscillation frequency.
In sum, the dispensing device of wireless charging provided by the invention and wireless charging system can be adjusted different charge conditions, its Real-Time Monitoring adjustment wireless charging strategy, make wireless charging system be charged with the high recharge efficiency under this system.It adopts the Intelligent closed-loop feedback system to carry out optimization to charge efficiency, can greatly improve the charge efficiency of whole system, and in addition, it adopts excess temperature and over-charge protective, has guaranteed the charging safety of whole charging system.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be directly to be connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. the dispensing device of a wireless charging, is characterized in that, comprising:
Transmitting coil, for launching the electric energy of dispensing device;
Vibration and frequency modulation module, produce LC resonance for transmitting coil, and regulate the humorous center of percussion capacitance of LC to change the resonance frequency of LC resonance;
The transmitting terminal sampling module, for voltage and the electric current that gathers described dispensing device;
The first control module, for the resonance frequency according to the predetermined described vibration of mode of frequency regulation regulating and controlling and frequency modulation module LC resonance, and according to the high recharge efficiency of the voltage of voltage, electric current and the receiving system of the dispensing device collected and current stabilization corresponding resonance frequency and control the energy process of transmitting of charging;
First communication module, for the radio communication of data between dispensing device and receiving system;
Power module, provide required driving power for giving described dispensing device.
2. the dispensing device of wireless charging as claimed in claim 1, is characterized in that, described the first control module comprises:
The translation operation module, carry out analog-to-digital conversion for the data of the dispensing device by collecting and receiving system, and calculate charge efficiency according to data after analog-to-digital conversion, and compare the high recharge efficiency in all charge efficiencies;
Memory module, for storing above-mentioned charge efficiency and capacitance corresponding to this charge efficiency;
The first single-chip microcomputer, for controlling the resonance frequency of above-mentioned vibration and frequency modulation module according to predetermined mode of frequency regulation and making vibration and frequency modulation module stability export capacitance corresponding to high recharge efficiency, and control the energy process of transmitting of charging.
3. the dispensing device of wireless charging as claimed in claim 1 or 2, is characterized in that, the energy process of transmitting of described control charging comprises: control and provide each module required driving power, and control the start and stop that energy sends.
4. the dispensing device of wireless charging as claimed in claim 1 or 2, is characterized in that, described predetermined mode of frequency regulation is: the resonance frequency of 110KHZ of take in the interval of 110KHZ-205KHZ is benchmark, and increases progressively resonance frequency with 1% to 1.5% speedup.
5. the dispensing device of wireless charging as claimed in claim 1, is characterized in that, described vibration and frequency modulation module comprise:
The tunable capacitor module, for providing adjustable electric capacity and producing LC resonance with described transmitting coil;
Inversion module, be converted to and supply tunable capacitor module and transmitting coil to carry out the alternating current of resonance for the direct current to above-mentioned power module output;
The second control module, regulate the inversion of electric capacity and the control inversion module of described tunable capacitor module for the control signal according to described the first control module output.
6. the dispensing device of wireless charging as claimed in claim 5, is characterized in that, described tunable capacitor module is the capacitance matrix that a plurality of electric capacity forms.
7. the dispensing device of wireless charging as claimed in claim 6, is characterized in that, described the second control module comprises:
Switch matrix, for the above-mentioned capacitance matrix electric capacity of corresponding control access circuit whether;
Pulse width modulation module, provide the required pulse signal of inversion module to drive inversion module for the control signal according to the first control module output;
Second singlechip, according to the control signal of the first control module output control pulse-width modulation circuit work, and the control switch matrix in the break-make of each switch.
8. a wireless charging system, comprise dispensing device and receiving system, and described receiving system comprises:
Receiving coil, for carrying out the electromagnetic induction coupling with the dispensing device transmitting coil;
Rectification and communication module, for the AC rectification that receiving coil is received be after direct current to the charging load charging, and carry out radio communication with dispensing device;
The receiving terminal sampling module, for voltage and the electric current that gathers described receiving system;
It is characterized in that, described dispensing device is the described dispensing device of any one in the claims 1-7.
9. wireless charging system as claimed in claim 8, is characterized in that, also comprises:
Be arranged at the temperature collect module on described dispensing device and/or receiving system; And
When surpassing predetermined safety temperature, the temperature collected will vibrate according to the control signal of the first control module and the first switch of frequency modulation module and transmitting coil disconnection.
10. wireless charging system as claimed in claim 9, it is characterized in that, be provided with second switch between described rectification and communication module and receiving coil, while for the voltage when collecting receiving system or electric current, surpassing predetermined safety value according to the control signal of the first control module by rectification and communication module and receiving coil disconnection.
11. wireless charging system as claimed in claim 10, is characterized in that, described the first control module and described the first switch, second switch, transmitting terminal sampling module, and the receiving terminal sampling module between be provided with the electrical isolation module for the safety isolation.
12. the charge control method of a wireless charging system, is characterized in that, comprises the following steps successively:
S1, with a reference frequency, start charging process;
S2, in predetermined resonant frequency range, control the humorous center of percussion capacitance of LC with the resonance frequency of regulating LC resonance in vibration and frequency modulation module voltage and the electric current that gathers voltage, electric current and the receiving system of dispensing device under this capacitance according to predetermined mode of frequency regulation;
S3, according to the above-mentioned data that collect, process and draw high recharge efficiency and optimum capacitance value corresponding to high recharge efficiency;
S4, control make vibration and frequency modulation module stability export above-mentioned optimum capacitance value, to stablize the LC resonance frequency.
13. charge control method as claimed in claim 12, is characterized in that, described frequency modulation is to change the humorous center of percussion capacitance of LC by the control capacittance matrix, to regulate the resonance frequency of LC resonance.
14. charge control method as claimed in claim 12, is characterized in that, described step S2 also comprises the temperature that gathers dispensing device and/or receiving system, and judges whether excess temperature in step S3, if excess temperature stops charging.
15. charge control method as claimed in claim 12, is characterized in that, described step S3 also comprises according to the voltage of the above-mentioned receiving system collected and electric current and judges whether to overcharge, if overcharge, stops charging.
16. charge control method as described as any one in claim 12 to 15, is characterized in that, described predetermined mode of frequency regulation is: the resonance frequency of 110KHZ of take in the interval of 110KHZ-205KHZ is benchmark, and increases progressively resonance frequency with 1% to 1.5% speedup.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180427.5A CN103457362B (en) | 2012-06-04 | 2012-06-04 | The dispensing device of wireless charging, wireless charging system and wireless charging control method |
| PCT/CN2013/075723 WO2013181985A1 (en) | 2012-06-04 | 2013-05-16 | Transmitting device, wireless charging system comprising transmitting device and method for controlling charging process thereof |
| EP13799883.7A EP2856608A4 (en) | 2012-06-04 | 2013-05-16 | Transmitting device, wireless charging system comprising transmitting device and method for controlling charging process thereof |
| US14/550,799 US20150200563A1 (en) | 2012-06-04 | 2014-11-21 | Transmitting device, wireless charging system comprising transmitting device, and method for controlling charging process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180427.5A CN103457362B (en) | 2012-06-04 | 2012-06-04 | The dispensing device of wireless charging, wireless charging system and wireless charging control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103457362A true CN103457362A (en) | 2013-12-18 |
| CN103457362B CN103457362B (en) | 2016-02-03 |
Family
ID=49739446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210180427.5A Active CN103457362B (en) | 2012-06-04 | 2012-06-04 | The dispensing device of wireless charging, wireless charging system and wireless charging control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103457362B (en) |
Cited By (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825369A (en) * | 2014-02-27 | 2014-05-28 | 北京航空航天大学 | Electric energy burglary preventing non-contact charging device for electric automobile |
| CN103972970A (en) * | 2014-05-26 | 2014-08-06 | 山东共达电声股份有限公司 | Wireless charger |
| CN104393623A (en) * | 2014-11-27 | 2015-03-04 | 上海安费诺永亿通讯电子有限公司 | Frequency locking method and system for magnetic resonance wireless charging system |
| CN104539031A (en) * | 2014-12-29 | 2015-04-22 | 哈尔滨工业大学 | Wireless charging method based on wireless energy transmission system |
| CN104935020A (en) * | 2014-03-17 | 2015-09-23 | 比亚迪股份有限公司 | Wireless charging system for electric vehicle and wireless charging method thereof |
| CN105305642A (en) * | 2014-07-07 | 2016-02-03 | 任文华 | Wireless energy transmission apparatus and resonant frequency control method for wireless energy transmission apparatus |
| CN105322662A (en) * | 2014-07-07 | 2016-02-10 | 任文华 | Wireless energy transmission system resonant frequency control method and device |
| CN105334539A (en) * | 2014-06-30 | 2016-02-17 | 无锡华润矽科微电子有限公司 | Method for realizing foreign body detection in wireless charging |
| CN105375536A (en) * | 2014-08-07 | 2016-03-02 | 辉达公司 | Magnetic power coupling to integrated circuit module |
| CN105391189A (en) * | 2014-08-28 | 2016-03-09 | 苹果公司 | Temperature management in a wireless energy transfer system |
| CN105896744A (en) * | 2016-04-26 | 2016-08-24 | 圣邦微电子（北京）股份有限公司 | LC tank circuit resonant coupling and non-resonant coupling tank circuit control method and circuit |
| CN106067688A (en) * | 2015-04-24 | 2016-11-02 | 联发科技股份有限公司 | Perform the method and device of the wireless charging control of electronic equipment |
| US9537353B1 (en) | 2014-06-03 | 2017-01-03 | Apple Inc. | Methods for detecting mated coils |
| CN106560971A (en) * | 2016-04-22 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging circuit, wireless charging device, wireless charging method, and wireless charging system |
| US9685814B1 (en) | 2014-06-13 | 2017-06-20 | Apple Inc. | Detection of coil coupling in an inductive charging system |
| CN106972649A (en) * | 2017-05-19 | 2017-07-21 | 深圳维思加通信技术有限公司 | Wireless charging system |
| CN107276243A (en) * | 2017-06-29 | 2017-10-20 | 北京航空航天大学 | A kind of wireless energy transform device adaptive based on frequency and method |
| US9813041B1 (en) | 2014-07-31 | 2017-11-07 | Apple Inc. | Automatic boost control for resonant coupled coils |
| CN107437823A (en) * | 2016-05-27 | 2017-12-05 | 松下知识产权经营株式会社 | Power transmission system |
| CN107733044A (en) * | 2017-11-15 | 2018-02-23 | 深圳市中天迅通信技术股份有限公司 | A kind of device that multiple electrical appliances can be achieved and charge simultaneously |
| CN108154811A (en) * | 2018-03-08 | 2018-06-12 | 深圳市洲明科技股份有限公司 | A kind of LED display modules and LED display |
| CN108282030A (en) * | 2018-01-29 | 2018-07-13 | 重庆理工大学 | A kind of adaptive wireless charging method and device |
| US10032557B1 (en) | 2014-05-29 | 2018-07-24 | Apple Inc. | Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer |
| US10116279B2 (en) | 2014-02-23 | 2018-10-30 | Apple Inc. | Impedance matching for inductive power transfer systems |
| US10193372B2 (en) | 2014-09-02 | 2019-01-29 | Apple Inc. | Operating an inductive energy transfer system |
| CN109286249A (en) * | 2018-10-29 | 2019-01-29 | 兰州大学 | Wireless energy transfer system |
| US10250067B2 (en) | 2014-01-16 | 2019-04-02 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of random phase-delay packet, and associated apparatus |
| WO2019061300A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳传音通讯有限公司 | Charging method and terminal |
| CN110100368A (en) * | 2017-04-07 | 2019-08-06 | Oppo广东移动通信有限公司 | Wireless charging device, method and charging equipment |
| US10389274B2 (en) | 2017-04-07 | 2019-08-20 | Apple Inc. | Boosted output inverter for electronic devices |
| CN110165755A (en) * | 2019-05-30 | 2019-08-23 | 吴忠隐 | A kind of wireless charging device |
| US10447061B2 (en) | 2014-01-16 | 2019-10-15 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of variant slot timing and simple response indicating acknowledgement, and associated apparatus |
| CN110350670A (en) * | 2019-05-29 | 2019-10-18 | 北京航空航天大学 | A kind of Universal wireless charging transmitting end device and control method |
| US10523063B2 (en) | 2017-04-07 | 2019-12-31 | Apple Inc. | Common mode noise compensation in wireless power systems |
| US10554070B2 (en) | 2014-01-16 | 2020-02-04 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of simple response indicating acknowledgement, and associated apparatus |
| CN110768385A (en) * | 2018-07-27 | 2020-02-07 | 上海磊恰电子科技有限公司 | Current error reduction method and system for wireless charging transmitting equipment |
| US10644531B1 (en) | 2016-09-22 | 2020-05-05 | Apple Inc. | Adaptable power rectifier for wireless charger system |
| WO2020087360A1 (en) * | 2018-10-31 | 2020-05-07 | 华为技术有限公司 | Wireless charging receiving apparatus, method, terminal, and system |
| US10666084B2 (en) | 2015-07-10 | 2020-05-26 | Apple Inc. | Detection and notification of an unpowered releasable charging device |
| CN113615035A (en) * | 2019-04-28 | 2021-11-05 | Oppo广东移动通信有限公司 | Power matching method and device for wireless charging and wireless charging device |
| CN114243162A (en) * | 2020-09-09 | 2022-03-25 | 华为技术有限公司 | Battery heating method, device and equipment |
| CN114376439A (en) * | 2021-12-31 | 2022-04-22 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN116054427A (en) * | 2022-08-04 | 2023-05-02 | 荣耀终端有限公司 | Wireless charging receiving equipment and wireless charging system |
| CN108154811B (en) * | 2018-03-08 | 2024-05-17 | 深圳市洲明科技股份有限公司 | LED display module and LED display screen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233666A (en) * | 2005-07-30 | 2008-07-30 | Ls电线有限公司 | Rechargeable power supply, battery device, contact-less charger systems and method for charging rechargeable battery cell |
| CN101645619A (en) * | 2008-08-05 | 2010-02-10 | 美国博通公司 | Integrated wireless resonant power charging and communication channel |
| JP2011193707A (en) * | 2010-03-17 | 2011-09-29 | Hitachi Consumer Electronics Co Ltd | Radio communication system, and power transmitter for use in the same |
| CN102280944A (en) * | 2010-06-12 | 2011-12-14 | 上海鸿隆电子技术有限公司 | magnetic resonance wireless power supply circuit |
| CN102315691A (en) * | 2010-07-01 | 2012-01-11 | 苏州宝时得电动工具有限公司 | Wireless charging system and method |
| CN202183629U (en) * | 2011-09-14 | 2012-04-04 | 江苏中讯数码电子有限公司 | Intelligent wireless charger |
| CN202712982U (en) * | 2012-06-04 | 2013-01-30 | 比亚迪股份有限公司 | Sending device of wireless charging and wireless charging system |
-
2012
- 2012-06-04 CN CN201210180427.5A patent/CN103457362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233666A (en) * | 2005-07-30 | 2008-07-30 | Ls电线有限公司 | Rechargeable power supply, battery device, contact-less charger systems and method for charging rechargeable battery cell |
| CN101645619A (en) * | 2008-08-05 | 2010-02-10 | 美国博通公司 | Integrated wireless resonant power charging and communication channel |
| JP2011193707A (en) * | 2010-03-17 | 2011-09-29 | Hitachi Consumer Electronics Co Ltd | Radio communication system, and power transmitter for use in the same |
| CN102280944A (en) * | 2010-06-12 | 2011-12-14 | 上海鸿隆电子技术有限公司 | magnetic resonance wireless power supply circuit |
| CN102315691A (en) * | 2010-07-01 | 2012-01-11 | 苏州宝时得电动工具有限公司 | Wireless charging system and method |
| CN202183629U (en) * | 2011-09-14 | 2012-04-04 | 江苏中讯数码电子有限公司 | Intelligent wireless charger |
| CN202712982U (en) * | 2012-06-04 | 2013-01-30 | 比亚迪股份有限公司 | Sending device of wireless charging and wireless charging system |
Cited By (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10250067B2 (en) | 2014-01-16 | 2019-04-02 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of random phase-delay packet, and associated apparatus |
| US10447061B2 (en) | 2014-01-16 | 2019-10-15 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of variant slot timing and simple response indicating acknowledgement, and associated apparatus |
| US10554070B2 (en) | 2014-01-16 | 2020-02-04 | Mediatek Inc. | Method for performing wireless charging control of an electronic device with aid of simple response indicating acknowledgement, and associated apparatus |
| US10116279B2 (en) | 2014-02-23 | 2018-10-30 | Apple Inc. | Impedance matching for inductive power transfer systems |
| CN103825369A (en) * | 2014-02-27 | 2014-05-28 | 北京航空航天大学 | Electric energy burglary preventing non-contact charging device for electric automobile |
| CN104935020A (en) * | 2014-03-17 | 2015-09-23 | 比亚迪股份有限公司 | Wireless charging system for electric vehicle and wireless charging method thereof |
| CN104935020B (en) * | 2014-03-17 | 2017-09-29 | 比亚迪股份有限公司 | Wireless charging system and wireless charging method for electric automobile |
| CN103972970A (en) * | 2014-05-26 | 2014-08-06 | 山东共达电声股份有限公司 | Wireless charger |
| US10032557B1 (en) | 2014-05-29 | 2018-07-24 | Apple Inc. | Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer |
| US10594159B2 (en) | 2014-06-03 | 2020-03-17 | Apple Inc. | Methods for detecting mated coils |
| US9537353B1 (en) | 2014-06-03 | 2017-01-03 | Apple Inc. | Methods for detecting mated coils |
| US10110051B2 (en) | 2014-06-13 | 2018-10-23 | Apple Inc. | Detection of coil coupling in an inductive charging system |
| US10879721B2 (en) | 2014-06-13 | 2020-12-29 | Apple Inc. | Detection of coil coupling in an inductive charging system |
| US9685814B1 (en) | 2014-06-13 | 2017-06-20 | Apple Inc. | Detection of coil coupling in an inductive charging system |
| CN105334539A (en) * | 2014-06-30 | 2016-02-17 | 无锡华润矽科微电子有限公司 | Method for realizing foreign body detection in wireless charging |
| CN107342635A (en) * | 2014-07-07 | 2017-11-10 | 许彐琼 | The resonant frequency control method and device of wireless energy transfer system |
| CN105322662A (en) * | 2014-07-07 | 2016-02-10 | 任文华 | Wireless energy transmission system resonant frequency control method and device |
| CN107579601B (en) * | 2014-07-07 | 2019-09-06 | 许彐琼 | Wireless energy transform device |
| CN105305642A (en) * | 2014-07-07 | 2016-02-03 | 任文华 | Wireless energy transmission apparatus and resonant frequency control method for wireless energy transmission apparatus |
| CN105322662B (en) * | 2014-07-07 | 2017-09-26 | 任文华 | The resonant frequency control method and device of wireless energy transfer system |
| CN107342635B (en) * | 2014-07-07 | 2019-09-06 | 许彐琼 | The resonance frequency control method of wireless energy transfer system |
| CN107579601A (en) * | 2014-07-07 | 2018-01-12 | 许彐琼 | The resonant frequency control method of wireless energy transform device and this kind of device |
| CN105305642B (en) * | 2014-07-07 | 2017-12-15 | 任文华 | The resonant frequency control method of wireless energy transform device and this kind of device |
| US9813041B1 (en) | 2014-07-31 | 2017-11-07 | Apple Inc. | Automatic boost control for resonant coupled coils |
| CN105375536A (en) * | 2014-08-07 | 2016-03-02 | 辉达公司 | Magnetic power coupling to integrated circuit module |
| CN105375536B (en) * | 2014-08-07 | 2019-04-19 | 辉达公司 | It is coupled to integrated circuit modules in magnetoelectricity source |
| CN105391189A (en) * | 2014-08-28 | 2016-03-09 | 苹果公司 | Temperature management in a wireless energy transfer system |
| CN105391189B (en) * | 2014-08-28 | 2019-07-26 | 苹果公司 | Temperature management in wireless energy transfer system |
| US10014733B2 (en) | 2014-08-28 | 2018-07-03 | Apple Inc. | Temperature management in a wireless energy transfer system |
| US10879745B2 (en) | 2014-08-28 | 2020-12-29 | Apple Inc. | Temperature management in a wireless energy transfer system |
| US10193372B2 (en) | 2014-09-02 | 2019-01-29 | Apple Inc. | Operating an inductive energy transfer system |
| CN104393623A (en) * | 2014-11-27 | 2015-03-04 | 上海安费诺永亿通讯电子有限公司 | Frequency locking method and system for magnetic resonance wireless charging system |
| CN104539031A (en) * | 2014-12-29 | 2015-04-22 | 哈尔滨工业大学 | Wireless charging method based on wireless energy transmission system |
| CN104539031B (en) * | 2014-12-29 | 2018-01-30 | 哈尔滨工业大学 | Wireless charging method based on wireless energy transfer system |
| CN106067688A (en) * | 2015-04-24 | 2016-11-02 | 联发科技股份有限公司 | Perform the method and device of the wireless charging control of electronic equipment |
| CN106067688B (en) * | 2015-04-24 | 2019-11-29 | 联发科技股份有限公司 | Execute the method and device of the wireless charging control of electronic equipment |
| US10666084B2 (en) | 2015-07-10 | 2020-05-26 | Apple Inc. | Detection and notification of an unpowered releasable charging device |
| CN106560971A (en) * | 2016-04-22 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging circuit, wireless charging device, wireless charging method, and wireless charging system |
| CN106560971B (en) * | 2016-04-22 | 2024-03-29 | 中兴新能源汽车有限责任公司 | Wireless charging circuit, wireless charging device, wireless charging method and wireless charging system |
| CN105896744A (en) * | 2016-04-26 | 2016-08-24 | 圣邦微电子（北京）股份有限公司 | LC tank circuit resonant coupling and non-resonant coupling tank circuit control method and circuit |
| CN107437823B (en) * | 2016-05-27 | 2022-03-08 | 松下知识产权经营株式会社 | Power transmission system |
| CN107437823A (en) * | 2016-05-27 | 2017-12-05 | 松下知识产权经营株式会社 | Power transmission system |
| US10644531B1 (en) | 2016-09-22 | 2020-05-05 | Apple Inc. | Adaptable power rectifier for wireless charger system |
| CN110100368B (en) * | 2017-04-07 | 2023-12-22 | Oppo广东移动通信有限公司 | Wireless charging device, method and equipment to be charged |
| CN110199453A (en) * | 2017-04-07 | 2019-09-03 | Oppo广东移动通信有限公司 | Charging equipment, wireless charging device, wireless charging method and system |
| US10389274B2 (en) | 2017-04-07 | 2019-08-20 | Apple Inc. | Boosted output inverter for electronic devices |
| US10523063B2 (en) | 2017-04-07 | 2019-12-31 | Apple Inc. | Common mode noise compensation in wireless power systems |
| CN110100368A (en) * | 2017-04-07 | 2019-08-06 | Oppo广东移动通信有限公司 | Wireless charging device, method and charging equipment |
| CN110214402A (en) * | 2017-04-07 | 2019-09-06 | Oppo广东移动通信有限公司 | Wireless charging system, device, method and charging equipment |
| CN110199453B (en) * | 2017-04-07 | 2023-12-12 | Oppo广东移动通信有限公司 | Equipment to be charged, wireless charging device, wireless charging method and system |
| CN110214402B (en) * | 2017-04-07 | 2023-12-26 | Oppo广东移动通信有限公司 | Wireless charging system, device and method and equipment to be charged |
| CN106972649A (en) * | 2017-05-19 | 2017-07-21 | 深圳维思加通信技术有限公司 | Wireless charging system |
| CN107276243A (en) * | 2017-06-29 | 2017-10-20 | 北京航空航天大学 | A kind of wireless energy transform device adaptive based on frequency and method |
| WO2019061300A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳传音通讯有限公司 | Charging method and terminal |
| CN107733044A (en) * | 2017-11-15 | 2018-02-23 | 深圳市中天迅通信技术股份有限公司 | A kind of device that multiple electrical appliances can be achieved and charge simultaneously |
| CN107733044B (en) * | 2017-11-15 | 2023-12-01 | 深圳市中天迅通信技术股份有限公司 | Device capable of realizing simultaneous charging of multiple electric appliances |
| CN108282030A (en) * | 2018-01-29 | 2018-07-13 | 重庆理工大学 | A kind of adaptive wireless charging method and device |
| CN108154811A (en) * | 2018-03-08 | 2018-06-12 | 深圳市洲明科技股份有限公司 | A kind of LED display modules and LED display |
| CN108154811B (en) * | 2018-03-08 | 2024-05-17 | 深圳市洲明科技股份有限公司 | LED display module and LED display screen |
| CN110768385A (en) * | 2018-07-27 | 2020-02-07 | 上海磊恰电子科技有限公司 | Current error reduction method and system for wireless charging transmitting equipment |
| CN109286249A (en) * | 2018-10-29 | 2019-01-29 | 兰州大学 | Wireless energy transfer system |
| CN109286249B (en) * | 2018-10-29 | 2024-03-22 | 兰州大学 | Wireless energy transmission system |
| WO2020087360A1 (en) * | 2018-10-31 | 2020-05-07 | 华为技术有限公司 | Wireless charging receiving apparatus, method, terminal, and system |
| CN113615035A (en) * | 2019-04-28 | 2021-11-05 | Oppo广东移动通信有限公司 | Power matching method and device for wireless charging and wireless charging device |
| CN110350670A (en) * | 2019-05-29 | 2019-10-18 | 北京航空航天大学 | A kind of Universal wireless charging transmitting end device and control method |
| CN110165755A (en) * | 2019-05-30 | 2019-08-23 | 吴忠隐 | A kind of wireless charging device |
| CN114243162A (en) * | 2020-09-09 | 2022-03-25 | 华为技术有限公司 | Battery heating method, device and equipment |
| CN114243162B (en) * | 2020-09-09 | 2023-12-08 | 华为技术有限公司 | Battery heating method, device and equipment |
| CN114376439A (en) * | 2021-12-31 | 2022-04-22 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN114376439B (en) * | 2021-12-31 | 2023-12-15 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN116054427A (en) * | 2022-08-04 | 2023-05-02 | 荣耀终端有限公司 | Wireless charging receiving equipment and wireless charging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103457362B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202712982U (en) | Sending device of wireless charging and wireless charging system | |
| CN103457362B (en) | The dispensing device of wireless charging, wireless charging system and wireless charging control method | |
| US10951070B2 (en) | System for transmitting ultrasonic short-range wireless power and method of charging ultrasonic wireless power | |
| CN108471173B (en) | Wireless energy transmission system with constant voltage and constant current output | |
| CN205882815U (en) | A charging system and power adapter for terminal | |
| US20150200563A1 (en) | Transmitting device, wireless charging system comprising transmitting device, and method for controlling charging process thereof | |
| CN204290504U (en) | Electrical power transmission system and the power transmission device for this electrical power transmission system | |
| US9966998B2 (en) | Wireless power transmitter, wireless power receiver, and power transmission method of wireless power transmitting system | |
| CN102355035B (en) | Wireless charging transmitting device, wireless charging system and wireless charging control method | |
| CN104011963B (en) | Induction type couples charger | |
| EP2617119B1 (en) | Apparatus for wireless power transmission and reception | |
| CN205092768U (en) | Circuit is collected to energy | |
| CN109687694B (en) | Multi-power supply integrated assembly and control method thereof | |
| CN105210261B (en) | Current-collecting device adjusts program and semiconductor device by electrical power adjusting method, by electrical power | |
| US20180241223A1 (en) | Wireless power transfer system and driving method therefor | |
| Le et al. | Wireless power transfer near-field technologies for unmanned aerial vehicles (UAVs): A review | |
| KR20130142861A (en) | Method for controlling power trasnmitting in wireless charging device and the wireless charging device therefor | |
| CN101286650A (en) | Battery charging circuit, battery charging system and method for charging battery set | |
| CN103858306A (en) | Electrical charging system | |
| CN105052008B (en) | For electric installation and contactless power supply system | |
| CN106374579A (en) | Wireless charging system and power transmission control method thereof | |
| US20180226829A1 (en) | Wireless power transmission system, and operation method therefor | |
| CN107139764A (en) | Electric automobile wireless charging control method and system based on communication protocol | |
| CN104617611B (en) | A kind of DC charging system for electric automobile and charging method | |
| CN113315258A (en) | Charging method based on LCL-LCL-S hybrid self-switching resonant mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |