CN109760531A - A kind of charging of dynamic radio receives circuit and dynamic radio charging system - Google Patents
A kind of charging of dynamic radio receives circuit and dynamic radio charging system Download PDFInfo
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- CN109760531A CN109760531A CN201910085870.6A CN201910085870A CN109760531A CN 109760531 A CN109760531 A CN 109760531A CN 201910085870 A CN201910085870 A CN 201910085870A CN 109760531 A CN109760531 A CN 109760531A
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- dynamic radio
- receiving coil
- synchronous rectification
- circnit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
It charges the invention discloses a kind of dynamic radio and receives circuit and dynamic radio charging system, including N number of receiving coil, N number of capacitor, N number of circuit of synchronous rectification, the N number of anti-circnit NOT and DC/DC translation circuit for being used to prevent reverse direction current flow being set on electric car；N number of receiving coil is set gradually under the conditions of at least one receiving coil realizes that full power is received according to the driving direction of electric car；Circuit of synchronous rectification is used to the alternating current of input being converted to direct current, in order to which direct current is carried out voltage conversion to meet the charge requirement of on-vehicle battery by DC/DC translation circuit.It can be seen that, multiple receiving coils are arranged in the application on electric car, it can be according to the specific laying condition of transmitting coil, at least one receiving coil in multiple receiving coils is set to realize that full power receives, to reduce the fluctuation of charging on-vehicle battery power, on-vehicle battery continuity high-frequency charge and discharge are avoided, and then extend the service life of on-vehicle battery.
Description
Technical field
The present invention relates to wireless charging fields, receive circuit more particularly to a kind of charging of dynamic radio and dynamic radio fills
Electric system.
Background technique
With the development of wireless power transmission technology, the dynamic radio charging system of electric car is gradually answered extensively
With.Currently, transmitting coil is mainly laid in a manner of being arranged successively in dynamic radio charging system, as shown in Figure 1.And it is electric
A receiving coil is provided only on electrical automobile, for connecing in charging road of the electric automobile during traveling in dynamic radio charging system
The power that corresponding transmitting coil issues is received, to realize the recharging of electric car.Under normal conditions, in order to improve dynamic radio
The uniformity of the transmitting terminal magnetic field strength of charging system, there are certain intervals between adjacent transmission coil, work as electric automobile during traveling
When between adjacent transmission coil, receiving coil cannot achieve full power reception, in some instances it may even be possible to and there are power transmission zero points, thus
So that the charge power fluctuation of the on-vehicle battery of electric car is larger, this will lead to on-vehicle battery continuity high-frequency charge and discharge,
Thereby reduce the service life of on-vehicle battery.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art needs to solve at present
The problem of.
Summary of the invention
It charges the object of the present invention is to provide a kind of dynamic radio and receives circuit and dynamic radio charging system, in electronic vapour
Multiple receiving coils are set on vehicle, can be made multiple according to the specific laying condition of transmitting coil in dynamic radio charging system
At least one receiving coil realizes that full power receives in receiving coil, so that the fluctuation of charging on-vehicle battery power is reduced,
On-vehicle battery continuity high-frequency charge and discharge are avoided, and then extend the service life of on-vehicle battery.
In order to solve the above technical problems, charging the present invention provides a kind of dynamic radio receives circuit, including it is set to electronic
N number of receiving coil, N number of capacitor, N number of circuit of synchronous rectification, N number of anti-circnit NOT for being used to prevent reverse direction current flow on automobile
And DC/DC translation circuit, N are the integer greater than 1, in which:
The first end of n-th receiving coil is connect with the first input end of n-th circuit of synchronous rectification, and n-th receives line
The second end of circle is connect with the first end of n-th capacitor, the second end of n-th capacitor and the second of n-th circuit of synchronous rectification
Input terminal connection, the output end of n-th circuit of synchronous rectification are connect with the input terminal of the anti-circnit NOT of n-th, the anti-circnit NOT of n-th
Output end connect with the input terminal of the DC/DC translation circuit, the output end of the DC/DC translation circuit and the electronic vapour
The on-vehicle battery of vehicle connects；Wherein, N number of receiving coil realizes the received condition of full power at least one receiving coil
Under set gradually according to the driving direction of the electric car；
The circuit of synchronous rectification is used to the alternating current of input being converted to direct current, in order to which the DC/DC converts electricity
The direct current is carried out voltage conversion to meet the charge requirement of the on-vehicle battery by road.
Preferably, the anti-circnit NOT includes diode, in which:
Input terminal of the anode of the diode as the anti-circnit NOT, the cathode of the diode is as the counnter attack
The output end of circuit.
Preferably, N number of receiving coil is arranged point-blank.
Preferably, the number of the receiving coil is 2.
Preferably, the single receiving coil of gap length < in dynamic radio charging system between adjacent transmission coil
The single transmitting coil of length < length.
In order to solve the above technical problems, the present invention also provides a kind of dynamic radio charging system, including dynamic radio fills
Electric transmit circuit further includes that any of the above-described kind of dynamic radio charging receives circuit.
Preferably, the circuit structure of the dynamic radio charging transmit circuit is specially LCCL topological structure.
The present invention provides a kind of dynamic radio charge receive circuit, including be set to electric car on N number of receiving coil,
N number of capacitor, N number of circuit of synchronous rectification, N number of anti-circnit NOT and DC/DC translation circuit for being used to prevent reverse direction current flow,
In: the first end of n-th receiving coil is connect with the first input end of n-th circuit of synchronous rectification, and the of n-th receiving coil
Two ends are connect with the first end of n-th capacitor, the second end of n-th capacitor and the second input terminal of n-th circuit of synchronous rectification
Connection, the output end of n-th circuit of synchronous rectification are connect with the input terminal of the anti-circnit NOT of n-th, the output of the anti-circnit NOT of n-th
End is connect with the input terminal of DC/DC translation circuit, and the output end of DC/DC translation circuit and the on-vehicle battery of electric car connect；N
A receiving coil at least one receiving coil realize full power it is received under the conditions of according to electric car driving direction according to
Secondary setting；Circuit of synchronous rectification is used to the alternating current of input being converted to direct current, in order to which DC/DC translation circuit is by direct current
Voltage conversion is carried out to meet the charge requirement of on-vehicle battery.
It, can be according to being sent out in dynamic radio charging system as it can be seen that multiple receiving coils are arranged in the application on electric car
The specific laying condition of ray circle makes at least one receiving coil in multiple receiving coils realize that full power receives, to subtract
The small fluctuation of charging on-vehicle battery power, avoids on-vehicle battery continuity high-frequency charge and discharge, and then extend vehicle mounted electric
The service life in pond.
The present invention also provides a kind of dynamic radio charging systems, with above-mentioned beneficial effect having the same.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the laying schematic diagram of transmitting coil in a kind of dynamic radio charging system in the prior art；
Fig. 2 is the structural schematic diagram that a kind of dynamic radio charging provided by the invention receives circuit；
Fig. 3 is a kind of structural schematic diagram of dynamic radio charging transmit circuit provided by the invention；
Fig. 4 is the setting signal of transmitting coil and receiving coil in a kind of dynamic radio charging system provided by the invention
Figure.
Specific embodiment
Core of the invention is to provide a kind of charging of dynamic radio and receives circuit and dynamic radio charging system, in electronic vapour
Multiple receiving coils are set on vehicle, can be made multiple according to the specific laying condition of transmitting coil in dynamic radio charging system
At least one receiving coil realizes that full power receives in receiving coil, so that the fluctuation of charging on-vehicle battery power is reduced,
On-vehicle battery continuity high-frequency charge and discharge are avoided, and then extend the service life of on-vehicle battery.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to figure 2., Fig. 2 is the structural schematic diagram that a kind of dynamic radio charging provided by the invention receives circuit.
Dynamic radio charging receive circuit include: N number of receiving coil L on electric car, it is N number of capacitor C, N number of
Circuit of synchronous rectification 1, N number of anti-circnit NOT 2 and DC/DC translation circuit 3 for being used to prevent reverse direction current flow, N are whole greater than 1
Number, in which:
The first end of n-th receiving coil L is connect with the first input end of n-th circuit of synchronous rectification 1, and n-th receives
The second end of coil L is connect with the first end of n-th capacitor C, the second end and n-th circuit of synchronous rectification 1 of n-th capacitor C
The connection of the second input terminal, the output end of n-th circuit of synchronous rectification 1 connect with the input terminal of the anti-circnit NOT 2 of n-th, n-th
The output end of anti-circnit NOT 2 is connect with the input terminal of DC/DC translation circuit 3, the output end of DC/DC translation circuit 3 and electronic vapour
The on-vehicle battery of vehicle connects；Wherein, N number of receiving coil L is under the conditions of at least one receiving coil L realizes that full power is received
It is set gradually according to the driving direction of electric car；
Circuit of synchronous rectification 1 is used to the alternating current of input being converted to direct current, in order to which DC/DC translation circuit 3 will be straight
Galvanic electricity carries out voltage conversion to meet the charge requirement of on-vehicle battery.
Specifically, dynamic radio charging system includes that dynamic radio charging transmit circuit (is set to dynamic radio charging system
Charging road on) and dynamic radio charging receive circuit (be set to electric car on), wherein dynamic radio charges transmit circuit
Circuit structure as shown in Figure 3 (LCCL topological structure) can be selected；It includes multiple receiving coils that dynamic radio charging, which receives circuit,
L, multiple capacitor C, multiple circuit of synchronous rectification 1, multiple anti-circnit NOTs 2 and DC/DC translation circuit 3.Next to dynamic radio
The working principle of charging system is illustrated:
From the figure 3, it may be seen that the circuit structure in dynamic radio charging transmit circuit where any transmitting coil includes: by first
H bridge inverter composed by power tube K1, the second power tube K2, third power tube K3 and the 4th power tube K4, by inductance Lp,
(abbreviation impedance matching circuit, no-load loss is low, has for LCCL impedance matching circuit composed by one capacitor C1 and the second capacitor Cp
Conducive to the pre- unlatching of system) and transmitting coil (carrying out transmission power at work).
And dynamic radio charging receives in circuit, a receiving coil L and a capacitor C form resonance circuit, to make
Receiving coil L can receive the power of corresponding transmitting coil transmitting.The function of corresponding transmitting coil transmitting is received in receiving coil L
After rate, itself has alternating current and pass through.Alternating current in receiving coil L can flow into circuit of synchronous rectification 1, make circuit of synchronous rectification
The alternating current of input is converted to direct current by 1.
In view of each receiving coil L received transmitting coil power may it is different, cause receive different capacity
The direct current size converted of the corresponding circuit of synchronous rectification 1 of receiving coil L it is also different, so electric current is from one in order to prevent
The output end of a circuit of synchronous rectification 1 compared with high output voltage flows to a circuit of synchronous rectification 1 compared with low output voltage (at this time
As inverter circuit) output end, the application each circuit of synchronous rectification 1 output end be added for preventing reverse direction current flow
Anti- circnit NOT 2, so that the direct current for converting each circuit of synchronous rectification 1 is through anti-circnit NOT 2 output to DC/DC translation circuit
3 (it should be noted that the output end of each anti-circnit NOT 2 is to be connected in parallel, the common input terminal for accessing DC/DC translation circuit 3).
The direct current of input can be carried out voltage and turned by DC/DC translation circuit 3 according to the charge requirement of the on-vehicle battery of electric car
It changes, to meet the charge requirement of on-vehicle battery.
It is understood that the setting direction of receiving coil L is identical as the setting direction of transmitting coil, according to electronic vapour
The driving direction of vehicle is set gradually.Moreover, in order to reduce the fluctuation of charging on-vehicle battery power, multiple receptions are being arranged in the application
It, should (length of transmitting coil and the interval of adjacent transmission coil be long according to the specific laying condition of transmitting coil when coil L
Degree), guarantee that at least one receiving coil L can realize that full power receives, to be arranged compared to single receiving coil, reduces
The fluctuation of charging on-vehicle battery power avoids on-vehicle battery continuity high-frequency charge and discharge, and then extends on-vehicle battery
Service life.
In addition, in actual installation, in order to improve dynamic radio charging system receiving end magnetic field strength uniformity,
It should be maintained a certain distance between adjacent reception coil L.Then according to structural circuit (the adjacent take-up of dynamic radio charging system
Coupling between circle L is ignored), the output voltage of circuit of synchronous rectification 1 can be obtained are as follows:Wherein, M is
Mutual inductance between transmitting coil and receiving coil L, UinFor the voltage that transmitting coil issues, LtransFor the inductance of transmitting coil.From
The output voltage that this relational expression can be seen that circuit of synchronous rectification 1 is unrelated with load, thus reduce receiving end and transmitting terminal it
Between dependence to real-time communication, moreover, vehicle mounted electric can be fully met using subsequent DC/DC translation circuit 3 in this way
The charge requirement in pond.
The present invention provides a kind of dynamic radio charge receive circuit, including be set to electric car on N number of receiving coil,
N number of capacitor, N number of circuit of synchronous rectification, N number of anti-circnit NOT and DC/DC translation circuit for being used to prevent reverse direction current flow,
In: the first end of n-th receiving coil is connect with the first input end of n-th circuit of synchronous rectification, and the of n-th receiving coil
Two ends are connect with the first end of n-th capacitor, the second end of n-th capacitor and the second input terminal of n-th circuit of synchronous rectification
Connection, the output end of n-th circuit of synchronous rectification are connect with the input terminal of the anti-circnit NOT of n-th, the output of the anti-circnit NOT of n-th
End is connect with the input terminal of DC/DC translation circuit, and the output end of DC/DC translation circuit and the on-vehicle battery of electric car connect；N
A receiving coil at least one receiving coil realize full power it is received under the conditions of according to electric car driving direction according to
Secondary setting；Circuit of synchronous rectification is used to the alternating current of input being converted to direct current, in order to which DC/DC translation circuit is by direct current
Voltage conversion is carried out to meet the charge requirement of on-vehicle battery.
It, can be according to being sent out in dynamic radio charging system as it can be seen that multiple receiving coils are arranged in the application on electric car
The specific laying condition of ray circle makes at least one receiving coil in multiple receiving coils realize that full power receives, to subtract
The small fluctuation of charging on-vehicle battery power, avoids on-vehicle battery continuity high-frequency charge and discharge, and then extend vehicle mounted electric
The service life in pond.
On the basis of the above embodiments:
As a kind of optionally embodiment, anti-circnit NOT 2 includes diode, in which:
Input terminal of the anode of diode as anti-circnit NOT 2, output end of the cathode of diode as anti-circnit NOT 2.
Specifically, the anti-circnit NOT 2 of the application can select for unidirectionally conducting electric current diode (only allow electric current from
Anode flows to cathode), thus prevent electric current from the output end of a circuit of synchronous rectification 1 compared with high output voltage flow to one compared with
The output end of the circuit of synchronous rectification 1 of low output voltage.
As a kind of optionally embodiment, N number of receiving coil L setting is point-blank.
Specifically, referring to figure 4., Fig. 4 is transmitting coil and to connect in a kind of dynamic radio charging system provided by the invention
The setting schematic diagram of take-up circle.Under normal conditions, on the straight line charging road of dynamic radio charging system, multiple transmitting coils
Setting is on the same line.Similarly, also multiple receiving coil L are arranged on the same line, due to receiving coil L by the application
It is to be set gradually according to the driving direction of electric car, so the receiving coil L of setting on the same line and charging ground
Apart from identical, to keep power transmission more stable.
As a kind of optionally embodiment, the number of receiving coil L is 2.
Specifically, 2 receiving coil L can be only arranged in the application on electric car, correspondingly, capacitor C, synchronous rectification
The number of circuit 1 and anti-circnit NOT 2 is 2, to save the cost that dynamic radio charging receives circuit.
As a kind of optionally embodiment, the gap length < in dynamic radio charging system between adjacent transmission coil is mono-
The length of the single transmitting coil of length < of one receiving coil L.
Specifically, the application can be larger than between adjacent transmission coil when selecting the length of single receiving coil L
Gap length, less than the length of single transmitting coil.The application does not do this and particularly limits, as long as guaranteeing that at least one connects
Take-up circle L realizes that full power receives.
The present invention also provides a kind of dynamic radio charging system, including dynamic radio charges transmit circuit, further include on
It states any dynamic radio charging and receives circuit.
As a kind of optionally embodiment, the circuit structure of dynamic radio charging transmit circuit is specially LCCL topology knot
Structure.
The introduction of dynamic radio charging system provided by the invention please refers to the reality that above-mentioned dynamic radio charging receives circuit
Example is applied, details are not described herein by the present invention.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of charging of dynamic radio receives circuit, which is characterized in that including the N number of receiving coil, N number of being set on electric car
It is capacitor, N number of circuit of synchronous rectification, N number of for preventing the anti-circnit NOT and DC/DC translation circuit of reverse direction current flow, N be greater than
1 integer, in which:
The first end of n-th receiving coil is connect with the first input end of n-th circuit of synchronous rectification, n-th receiving coil
Second end is connect with the first end of n-th capacitor, the second end of n-th capacitor and the second input of n-th circuit of synchronous rectification
End connection, the output end of n-th circuit of synchronous rectification connect with the input terminal of the anti-circnit NOT of n-th, the anti-circnit NOT of n-th it is defeated
Outlet is connect with the input terminal of the DC/DC translation circuit, output end and the electric car of the DC/DC translation circuit
On-vehicle battery connection；Wherein, N number of receiving coil is pressed under the conditions of at least one receiving coil realizes that full power is received
It is set gradually according to the driving direction of the electric car；
The circuit of synchronous rectification is used to the alternating current of input being converted to direct current, in order to which the DC/DC translation circuit will
The direct current carries out voltage conversion to meet the charge requirement of the on-vehicle battery.
2. dynamic radio charging as described in claim 1 receives circuit, which is characterized in that the anti-circnit NOT includes two poles
Pipe, in which:
Input terminal of the anode of the diode as the anti-circnit NOT, the cathode of the diode is as the anti-circnit NOT
Output end.
3. dynamic radio charging as described in claim 1 receives circuit, which is characterized in that N number of receiving coil setting exists
On straight line.
4. dynamic radio charging as claimed in claim 3 receives circuit, which is characterized in that the number of the receiving coil is 2.
5. dynamic radio charging according to any one of claims 1-4 receives circuit, which is characterized in that dynamic radio Charging
The length of the single transmitting coil of length < of the single receiving coil of gap length < in system between adjacent transmission coil
Degree.
6. a kind of dynamic radio charging system, which is characterized in that further include that right such as is wanted including dynamic radio charging transmit circuit
The described in any item dynamic radio chargings of 1-5 are asked to receive circuit.
7. dynamic radio charging system as claimed in claim 6, which is characterized in that the dynamic radio charging transmit circuit
Circuit structure is specially LCCL topological structure.
Applications Claiming Priority (2)
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|---|---|---|---|
| CN201910058389 | 2019-01-22 | ||
| CN2019100583898 | 2019-01-22 |
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| CN109760531B CN109760531B (en) | 2021-04-09 |
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| CN201910085870.6A Active CN109760531B (en) | 2019-01-22 | 2019-01-29 | Dynamic wireless charging receiving circuit and dynamic wireless charging system |
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| CN110913534A (en) * | 2019-12-31 | 2020-03-24 | 佛山市利升光电有限公司 | LED lamp and power supply circuit thereof |
| CN110996445A (en) * | 2019-12-31 | 2020-04-10 | 佛山市利升光电有限公司 | LED lamp circuit structure |
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| WO2021227652A1 (en) * | 2020-05-14 | 2021-11-18 | 荣耀终端有限公司 | Wireless charging device and device to be charged |
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| CN110913534A (en) * | 2019-12-31 | 2020-03-24 | 佛山市利升光电有限公司 | LED lamp and power supply circuit thereof |
| CN110996445A (en) * | 2019-12-31 | 2020-04-10 | 佛山市利升光电有限公司 | LED lamp circuit structure |
| WO2021227652A1 (en) * | 2020-05-14 | 2021-11-18 | 荣耀终端有限公司 | Wireless charging device and device to be charged |
| CN114498783A (en) * | 2020-10-26 | 2022-05-13 | 北京小米移动软件有限公司 | Wireless charging control method, device, equipment and storage medium |
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