CN109677282A - A kind of radio induction charging stake system - Google Patents
A kind of radio induction charging stake system Download PDFInfo
- Publication number
- CN109677282A CN109677282A CN201710968523.9A CN201710968523A CN109677282A CN 109677282 A CN109677282 A CN 109677282A CN 201710968523 A CN201710968523 A CN 201710968523A CN 109677282 A CN109677282 A CN 109677282A
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- China
- Prior art keywords
- module
- induced emission
- microcontroller
- emission coil
- strip
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
-
- 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
-
- 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
-
- 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
- Y02T90/12—Electric charging stations
-
- 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
-
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of radio induction charging stake systems, belong to automobile charging technique field, including memory module, LCD display, print module, payment module, microcontroller, wireless communication module, power circuit and alarm pulsed illumination pipe, microcontroller is connect with single-phase electric energy metering chip, power circuit is electrically connected by active power filter and harmonic wave detection module with alternating accumulator, single-phase electric energy metering chip is connect with disc induced emission coil, infrared transmission module, wireless communication module, strip induced emission coil, disc induced emission coil and alarm pulsed illumination pipe collectively constitute multiple wireless inductive charging system.The present invention has many advantages, such as that structure is simple, at low cost, it can be directly with wireless induction module directly to equipment charges such as mobile phones, using more convenient, cost performance is higher, fundamental reactive current, negative-sequence current, zero-sequence current and the harmonic current in load current can be filtered out, the influence of zero sequence lobe error is avoided.
Description
Technical field
The present invention relates to a kind of charging pile systems to belong to automobile and fill more particularly to a kind of radio induction charging stake system
Electro-technical field.
Background technique
Charging pile is electric power vehicle charging station, and for shape like parking timing stopwatch, a general charging pile can be simultaneously
For two automobiles charging, from it is out of power to the charging time being full of be 6 to 8 hours, charging pile be able to achieve timing, meter electric degree, meter gold
Volume charging can be used as citizen's power purchase terminal, while to improve the efficiency and practicability of public charging pile, will increase successively from now on
Being filled one more and for electric bicycle charging function, so far, China's electric automobile charging station is confined to electronic public affairs mostly
Automobile or in-group vehicle are handed over, there are no building up the really charging station service network towards different user, currently, on the market
Charging pile is many kinds of, but there is also many defects, such as charging rate are slower, can not quickly fill for equipment in the short time
Electricity does not have preferable charging effect, meanwhile, function of the charging pile in the prior art with less radio induction charging, and mesh
Before, since the load of the charging pile and institute's band of charging pile use is non-linear equipment, the electric energy of power grid can be given at runtime
Quality brings deleterious effect, is mainly reflected in power factor of electric network decline and brings harmonic pollution etc. to power grid, wherein
Harmonic pollution is endangered caused by power grid mainly the following aspects: voltage and heat condition caused by harmonic current will lead to
The reduced service life of power factor correction capacitor；Since mechanical oscillation will receive the shadow of fundamental frequency magnetic field and harmonic current
It rings, when mechanical resonant frequency and equal electrical excitation frequency, it may occur that generate bigger mechanical stress, destruction is set for resonance
It is standby；Harmonic wave will lead to the point error in judgement that system is zero to voltage zero-cross and voltage；Harmonic current will cause transformer iron loss and
The increase of copper loss；Interference is generated to electronic equipment and relay protection；Harmonic current will lead to equipment malfunction work, may middle medium well
It produces and runs.
Summary of the invention
The main object of the present invention is to provide for one kind and is able to achieve human-computer interaction, using more convenient, cost performance is higher, can
Directly is solved current electric car directly to the radio induction charging stake system of the equipment charges such as mobile phone with wireless induction module and filled
The big problem of electric stake side harmonics comparision contents can filter out fundamental reactive current, negative-sequence current, zero sequence electricity in load current
Stream and harmonic current, leave behind fundamental positive sequence active component, avoid the influence of zero sequence lobe error.
The purpose of the present invention can reach by using following technical solution:
A kind of radio induction charging stake system, including memory module, LCD display, print module, payment module, micro-control
Device processed, wireless communication module, power circuit and alarm pulsed illumination pipe, the memory module, described are beaten the LCD display
Impression block, the payment module and the wireless communication module are electrically connected with the microcontroller, and the memory module is used for
Store the processing data and charge data of the microcontroller, the LCD display for show charge capacity, charging times and
Charge frequency, the wireless communication module are used to carry out communication connection, the micro-control with vehicle-carrying display screen or mobile communication equipment
Single-phase electric energy metering chip and current-voltage sampling circuit, the single-phase electric energy metering are equipped between device processed and the power circuit
Chip is electrically connected by disc induced emission coil with the power circuit, the single-phase electric energy metering chip respectively with automobile
Charging module and the electrical connection of electric bicycle charging module, the power circuit pass through active power filter and harmonic detecting mould
Block is electrically connected with alternating accumulator, and the harmonic detecting module is used for the harmonic current size of real-time detection charging pile system, electricity
Power active filter improves the power factor (PF) of charging pile system operation, institute for carrying out harmonic filtration to charging pile system in real time
State active power filter and be electrically connected with the current-voltage sampling circuit by battery monitoring module, the microcontroller also with
Infrared transmission module, strip induced emission coil, disc induced emission coil and alarm pulsed illumination pipe electrical connection, it is described
Strip induced emission coil is electrically connected with the wireless communication module, the infrared transmission module, the wireless communication module,
The strip induced emission coil, the disc induced emission coil and the alarm pulsed illumination pipe collectively constitute multichannel
Radio induction charging system realizes radio induction charging while to multi-section mobile terminal or other electronic products.
Preferable scheme is that the microcontroller is the STM32F103 microcontroller with ARM7Cortex-m3 kernel.
In any of the above-described scheme preferably, the single-phase electric energy metering chip is HLW8012 chip, described
Oscillator and reference power source built in HLW8012 integrated chip.
In any of the above-described scheme preferably, the wireless communication module is the radio transmitting and receiving chip based on ZigBee.
In any of the above-described scheme preferably, the strip induced emission coil using sub-thread or multiply enameled wire around
System, the strip induced emission coil are arranged in strip hollow magnetic holder.
In any of the above-described scheme preferably, it is made in the strip hollow magnetic holder of high frequency ferrite material,
There are strip air-gaps among the strip hollow magnetic holder, as ventilation and heat channel and through light pulse alarm signal
Window.
In any of the above-described scheme preferably, the current-voltage sampling circuit is by filter and voltage comparator group
At the filter is made of resistance and capacitor, and the voltage comparator is LM3ll type voltage comparator.
In any of the above-described scheme preferably, the power circuit is AC-DC non-isolated power supply circuit.
In any of the above-described scheme preferably, the microcontroller, the strip induced emission coil, the disk
Shape induced emission coil and the alarm pulsed illumination pipe are also connect with Minitype radiating fan respectively, and the Minitype radiating fan is used
In for the microcontroller, the strip induced emission coil, the disc induced emission coil and the alarm pulse
Luminous tube radiates.
In any of the above-described scheme preferably, the alarm pulsed illumination pipe is electrically connected with the microcontroller, described
Minitype radiating fan is also used to radiate for the alarm pulsed illumination pipe, the direct-current working volts of the Minitype radiating fan
For 12-24V, with a thickness of 5-10mm, 20 × 20-30 of external dimensions × 30mm, power 0.5-2W.
Advantageous effects of the invention: radio induction charging stake system according to the invention, it is provided by the invention wireless
Induction charging stake system has many advantages, such as that structure is simple, at low cost, can not only charge for electric car, can also be
Electric bicycle charges, and removes the worry with changeover plug from, can be directly with wireless induction module directly to electric car etc.
Equipment charges, and realizes better human-computer interaction, intelligent things, and using more convenient, cost performance is higher, solves electronic at present
The big problem of automobile charging pile side harmonics comparision contents, can filter out fundamental reactive current in load current, negative-sequence current,
Zero-sequence current and harmonic current leave behind fundamental positive sequence active component, avoid the influence of zero sequence lobe error.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment of radio induction charging stake system according to the invention.
In figure: 1- memory module, 2-LCD display, 3- battery monitoring module, 4- print module, 5- payment module, 6- electricity
Power active filter, 7- infrared transmission module, 8- microcontroller, 9- single-phase electric energy metering chip, 10- wireless communication module, 11-
Strip induced emission coil, 12- Minitype radiating fan, 13- current-voltage sampling circuit, 14- power circuit, 15- exchange store
Battery, 16- harmonic detecting module, 17- disc induced emission coil, 18- alarm pulsed illumination pipe, 20- automobile charging module,
22- electric bicycle charging module.
Specific embodiment
To make the more clear and clear technical solution of the present invention of those skilled in the art, below with reference to examples and drawings
The present invention is described in further detail, and embodiments of the present invention are not limited thereto.
As shown in Figure 1, a kind of radio induction charging stake system provided in this embodiment, including memory module 1, LCD are shown
Device 2, print module 4, payment module 5, microcontroller 8, wireless communication module 10, power circuit 14 and alarm pulsed illumination pipe
18, the memory module 1, the LCD display 2, the print module 4, the payment module 5 and the wireless communication module
10 are electrically connected with the microcontroller 8, and the memory module 1 is used to store the processing data and charging of the microcontroller 8
Data, for showing charge capacity, charging times and charge frequency, the wireless communication module 10 is used for the LCD display 2
Communication connection is carried out with vehicle-carrying display screen or mobile communication equipment, is equipped between the microcontroller 8 and the power circuit 14
Single-phase electric energy metering chip 9 and current-voltage sampling circuit 13, the single-phase electric energy metering chip 9 pass through disc induced emission
Coil 17 is electrically connected with the power circuit 14, the single-phase electric energy metering chip 9 respectively with automobile charging module 20 and electronic
Bicycle charging module 22 is electrically connected, and the power circuit 14 is by active power filter 6 and harmonic wave detection module 16 and hands over
It flows battery 15 to be electrically connected, the harmonic detecting module 16 is used for the harmonic current size of real-time detection charging pile system, electric power
For active filter 6 for carrying out harmonic filtration to charging pile system in real time, the power factor (PF) of raising charging pile system operation is described
Active power filter 6 is electrically connected by battery monitoring module 3 with the current-voltage sampling circuit 13, the microcontroller 8
Also with infrared transmission module 7, strip induced emission coil 11, disc induced emission coil 17 and alarm pulsed illumination pipe 18
Electrical connection, the strip induced emission coil 11 are electrically connected with the wireless communication module 10, the infrared transmission module 7,
The wireless communication module 10, the strip induced emission coil 11, the disc induced emission coil 17 and the announcement
Alert pulsed illumination pipe 18 collectively constitutes multiple wireless inductive charging system, realizes to multi-section mobile terminal or other electronic products
Radio induction charging simultaneously.
Further, in the present embodiment, the microcontroller 8 is the STM32F103 with ARM7Cortex-m3 kernel
Microcontroller, the single-phase electric energy metering chip 9 are HLW8012 chip, oscillator and ginseng built in the HLW8012 integrated chip
Power supply is examined, the wireless communication module 10 is the radio transmitting and receiving chip based on ZigBee.
Further, in the present embodiment, as shown in Figure 1, the strip induced emission coil 11 uses sub-thread or more
Stock enameled wire coiling, the strip induced emission coil 11 are arranged in strip hollow magnetic holder, the strip hollow magnetic
It is made in box of high frequency ferrite material, there are strip air-gaps among the strip hollow magnetic holder, dissipate as ventilation
The passage of heat and the window for penetrating light pulse alarm signal.
Further, in the present embodiment, as shown in Figure 1, the current-voltage sampling circuit 13 is by filter and voltage
Comparator composition, the filter are made of resistance and capacitor, and the voltage comparator is LM3ll type voltage comparator, described
Power circuit 14 is AC-DC non-isolated power supply circuit.
Further, in the present embodiment, as shown in Figure 1, the microcontroller 8, the strip induced emission coil
11, the disc induced emission coil 17 and the alarm pulsed illumination pipe 18 are also connect with Minitype radiating fan 12 respectively,
The Minitype radiating fan 12 is used for as the microcontroller 8, the strip induced emission coil 11, disc induction
Transmitting coil 17 and the alarm pulsed illumination pipe 18 radiate, the alarm pulsed illumination pipe 18 and the microcontroller 8
Electrical connection, the Minitype radiating fan 12 are also used to radiate for the alarm pulsed illumination pipe 18, the miniature radiation air
The direct-current working volts of fan 12 are 12-24V, with a thickness of 5-10mm, 20 × 20-30 of external dimensions × 30mm, power 0.5-2W.
In conclusion in the present embodiment, it is provided in this embodiment according to the radio induction charging stake system of the present embodiment
Radio induction charging stake system has many advantages, such as that structure is simple, at low cost, can not only charge for electric car, may be used also
Think that electric bicycle charges, removes the worry with changeover plug from, it can be directly with wireless induction module directly to electronic vapour
The equipment such as vehicle charge, and realize better human-computer interaction, intelligent things, and using more convenient, cost performance is higher, solves at present
The big problem of electric automobile charging pile side harmonics comparision contents can filter out fundamental reactive current in load current, negative phase-sequence
Electric current, zero-sequence current and harmonic current leave behind fundamental positive sequence active component, avoid the influence of zero sequence lobe error.
The above, further embodiment only of the present invention, but scope of protection of the present invention is not limited thereto, and it is any
Within the scope of the present disclosure, according to the technique and scheme of the present invention and its design adds those familiar with the art
With equivalent substitution or change, protection scope of the present invention is belonged to.
Claims (10)
1. a kind of radio induction charging stake system, it is characterised in that: including memory module (1), LCD display (2), print module
(4), payment module (5), microcontroller (8), wireless communication module (10), power circuit (14) and alarm pulsed illumination pipe
(18), the memory module (1), the LCD display (2), the print module (4), the payment module (5) and the nothing
Line communication module (10) is electrically connected with the microcontroller (8), and the memory module (1) is for storing the microcontroller
(8) processing data and charge data, the LCD display (2) for showing charge capacity, charging times and charge frequency,
The wireless communication module (10) is used to carry out communication connection, the microcontroller with vehicle-carrying display screen or mobile communication equipment
(8) single-phase electric energy metering chip (9) and current-voltage sampling circuit (13), the list are equipped between the power circuit (14)
Phase electric energy computation chip (9) is electrically connected by disc induced emission coil (17) with the power circuit (14), described single-phase
Electric energy computation chip (9) is electrically connected with automobile charging module (20) and electric bicycle charging module (22) respectively, the power supply
Circuit (14) is electrically connected by active power filter (6) and harmonic wave detection module (16) with alternating accumulator (15), described humorous
Wave detection module (16) is used for the harmonic current size of real-time detection charging pile system, and active power filter (6) is for real-time
Harmonic filtration is carried out to charging pile system, improves the power factor (PF) of charging pile system operation, the active power filter (6) is logical
It crosses battery monitoring module (3) to be electrically connected with the current-voltage sampling circuit (13), the microcontroller (8) is gone back and infrared emission
Module (7), strip induced emission coil (11), disc induced emission coil (17) and alarm pulsed illumination pipe (18) are electrically connected
It connects, the strip induced emission coil (11) is electrically connected with the wireless communication module (10), the infrared transmission module
(7), the wireless communication module (10), the strip induced emission coil (11), the disc induced emission coil
(17) and the alarm pulsed illumination pipe (18) collectively constitutes multiple wireless inductive charging system, realize to multi-section mobile terminal or
Radio induction charging while other electronic products.
2. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the microcontroller (8) is
STM32F103 microcontroller with ARM7Cortex-m3 kernel.
3. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the single-phase electric energy metering core
Piece (9) is HLW8012 chip, oscillator and reference power source built in the HLW8012 integrated chip.
4. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the wireless communication module
It (10) is the radio transmitting and receiving chip based on ZigBee.
5. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the strip induced emission
Coil (11) uses sub-thread or multiply enameled wire coiling, and the strip induced emission coil (11) is arranged in strip hollow magnetic
In box.
6. a kind of radio induction charging stake system according to claim 5, it is characterised in that: the strip hollow magnetic holder
Interior to be made of high frequency ferrite material, there are strip air-gaps among the strip hollow magnetic holder, as ventilation and heat
Channel and the window for penetrating light pulse alarm signal.
7. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the current-voltage sampling electricity
Road (13) is made of filter and voltage comparator, and the filter is made of resistance and capacitor, and the voltage comparator is
LM3ll type voltage comparator.
8. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the power circuit (14) is
AC-DC non-isolated power supply circuit.
9. a kind of radio induction charging stake system according to claim 1, it is characterised in that: the microcontroller (8), institute
State strip induced emission coil (11), the disc induced emission coil (17) and the alarm pulsed illumination pipe (18) also
It is connect respectively with Minitype radiating fan (12), the Minitype radiating fan (12) is used to be the microcontroller (8), the strip
Shape induced emission coil (11), the disc induced emission coil (17) and the alarm pulsed illumination pipe (18) carry out scattered
Heat.
10. a kind of radio induction charging stake system according to claim 9, it is characterised in that: the alarm pulsed illumination
Pipe (18) is electrically connected with the microcontroller (8), and the Minitype radiating fan (12) is also used to as the alarm pulsed illumination pipe
(18) it radiates, the direct-current working volts of the Minitype radiating fan (12) are 12-24V, with a thickness of 5-10mm, external dimensions
20 × 20-30 × 30mm, power 0.5-2W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968523.9A CN109677282A (en) | 2017-10-18 | 2017-10-18 | A kind of radio induction charging stake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968523.9A CN109677282A (en) | 2017-10-18 | 2017-10-18 | A kind of radio induction charging stake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109677282A true CN109677282A (en) | 2019-04-26 |
Family
ID=66183208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968523.9A Pending CN109677282A (en) | 2017-10-18 | 2017-10-18 | A kind of radio induction charging stake system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109677282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020226916A1 (en) * | 2019-05-03 | 2020-11-12 | Witricity Corporation | Active harmonics cancellation |
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| CN102570128A (en) * | 2010-12-11 | 2012-07-11 | 张志平 | Power socket with wireless induction charging module |
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|---|---|---|---|---|
| WO2020226916A1 (en) * | 2019-05-03 | 2020-11-12 | Witricity Corporation | Active harmonics cancellation |
| US11482921B2 (en) | 2019-05-03 | 2022-10-25 | Witricity Corporation | Active harmonics cancellation |
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| US12132311B2 (en) | 2019-05-03 | 2024-10-29 | Witricity Corporation | Active harmonics cancellation |
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Application publication date: 20190426 |
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| RJ01 | Rejection of invention patent application after publication |