CN112787415B - Device for testing wireless charging demodulation decoding performance - Google Patents
Device for testing wireless charging demodulation decoding performance Download PDFInfo
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- CN112787415B CN112787415B CN202110088345.7A CN202110088345A CN112787415B CN 112787415 B CN112787415 B CN 112787415B CN 202110088345 A CN202110088345 A CN 202110088345A CN 112787415 B CN112787415 B CN 112787415B
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000004891 communication Methods 0.000 claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000011056 performance test Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 11
- 230000005674 electromagnetic induction Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of wireless charging, and particularly discloses a device for testing wireless charging demodulation decoding performance, which comprises the following components: the wireless charging receiving end is connected with the wireless charging transmitting end through coil induction communication; the wireless charging receiving end comprises a wireless charging receiving end main controller, a rectifying module and a modulating circuit; the wireless charging receiving end main controller is used for receiving the test instruction of the upper computer and sending a charging test signal to the wireless charging transmitting end according to the test instruction of the upper computer; the rectification module is used for converting an alternating-current voltage signal of the wireless charging transmitting end into a direct-current voltage signal; the modulation circuit is used for modulating the charging test signal to obtain a modulation signal. The device for testing the wireless charging demodulation decoding performance can realize the testing of the demodulation decoding performance of the wireless charging transmitting end in the design stage, thereby being convenient for a designer to modify and perfect the design performance.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a device for testing wireless charging demodulation decoding performance.
Background
Qi is a standardization organization pushing wireless charging technology for the first time worldwide, namely a wireless charging standard pushed by wireless charging alliance (Wireless Power Consortium, abbreviated as WPC), and has two major characteristics of convenience and universality. First, different brands of products, as long as there is one identification of Qi, can be charged with Qi wireless chargers. Secondly, the wireless charging system overcomes the technical bottleneck of the universality of wireless charging, and products such as mobile phones, cameras, computers and the like can be charged by the Qi wireless charger, so that the wireless charging system provides possibility for large-scale application of wireless charging.
The mainstream wireless charging technology in the market mainly adopts three modes, namely electromagnetic induction, radio waves and resonance, while Qi adopts the most mainstream electromagnetic induction technology. The basic principle of electromagnetic induction is Faraday law of electromagnetic induction, the structure of the electromagnetic induction is similar to a transformer, a coil is arranged at each of a transmitting end and a receiving end, the coil at the transmitting end is connected with a wired power supply, current generates electromagnetic signals through the coil, and the coil at the receiving end induces the electromagnetic signals at the transmitting end so as to generate current to be supplied to back-end equipment.
The Qi standard protocol defines that no TX (wireless charging transmitting end) and RX (wireless charging receiving end) data transmission mainly superimposes a 2KHz communication envelope on a 110KHz-205KHz working frequency carrier wave in an amplitude modulation mode, the transmission direction is from RX to TX, namely, the RX sends a modulation signal, and the TX demodulates and decodes. The Qi standard protocol provides two RX modulation modes, namely resistance modulation and capacitance modulation. Comparing the characteristics of the two modulation modes: the resistance modulation mode has the advantages that the signal strength is larger and is easy to identify, but the power loss is larger; the capacitive modulation method has small power loss and is easy to be interfered by noise.
One of the core technologies of wireless charging energy transmission is the demodulation and decoding capability of TX on the envelope of modulated communication signals, and the quality of demodulation and decoding performance directly determines the stability of the wireless charging process. The communication envelope is easily affected by various factors such as RX load change, coil induction distance change, modulation state change, coil crosstalk and the like in the transmission process, so that the signal quality of the communication envelope is poor, and the TX cannot be demodulated and decoded to obtain correct communication data, thereby causing abnormal disconnection of wireless charging.
In the existing wireless charging chip design and scheme development, the performance of a designed wireless charging transmitting end amplitude modulation signal demodulation and decoding module is not effectively, simply and conveniently tested and analyzed, so that the designed wireless charging chip demodulation and decoding module cannot be effectively and fully verified, and a detailed and accurate performance evaluation result of the demodulation and decoding module cannot be given.
Disclosure of Invention
The invention provides a device for testing the demodulation and decoding performance of wireless charging, which solves the problem that the demodulation and decoding performance of a wireless charging transmitting terminal cannot be evaluated in the related art.
As a first aspect of the present invention, there is provided an apparatus for wireless charging demodulation decoding performance test, comprising:
The wireless charging receiving end is connected with the wireless charging transmitting end through coil induction communication;
the wireless charging receiving end comprises a wireless charging receiving end main controller, a rectifying module and a modulating circuit, wherein the rectifying module and the modulating circuit are both in communication connection with the wireless charging receiving end main controller;
The wireless charging receiving end main controller is used for receiving a test instruction of the upper computer and sending a charging test signal to the wireless charging transmitting end according to the test instruction of the upper computer;
The rectification module is used for converting an alternating-current voltage signal of the wireless charging transmitting end into a direct-current voltage signal;
the modulation circuit is used for modulating the charging test signal to obtain a modulation signal;
the wireless charging transmitting terminal can demodulate and decode the modulation signal to obtain a demodulated and decoded signal, and the wireless charging receiving terminal can analyze the demodulation and decoding performance of the wireless charging transmitting terminal according to the demodulated and decoded signal.
Further, the wireless charging transmitting terminal includes: the wireless charging transmitting terminal comprises a wireless charging transmitting terminal main controller, a full-bridge circuit, a demodulation circuit and a decoding circuit, wherein the full-bridge circuit and the demodulation circuit are both in communication connection with the wireless charging transmitting terminal main controller, and the decoding circuit is electrically connected with the demodulation circuit;
the wireless charging transmitting end main controller is used for controlling wireless charging energy transmission and receiving a modulated charging test signal sent by the wireless charging receiving end;
the full-bridge circuit is used for converting the direct-current voltage signal into an alternating-current voltage signal;
the demodulation circuit is used for demodulating the modulated charging test signal to obtain a demodulation signal;
the decoding circuit is used for decoding the demodulation signal to obtain a decoding signal.
Further, the wireless charging transmitting end comprises a transmitting end LC series resonant circuit, the wireless charging receiving end comprises a receiving end LC series resonant circuit, and the transmitting end LC series resonant circuit and the receiving end LC series resonant circuit are connected with the coil in an inductive coupling mode.
Further, the wireless charging receiving terminal comprises a first GPIO interface, the wireless charging transmitting terminal comprises a second GPIO interface, the first GPIO interface is connected with the wireless charging receiving terminal main controller, the second GPIO interface is connected with the wireless charging transmitting terminal main controller, and the wireless charging receiving terminal main controller obtains demodulation and decoding signals of the wireless charging transmitting terminal through the first GPIO interface and the second GPIO interface.
Further, the wireless charging receiving end further comprises a display screen, the display screen is in communication connection with the wireless charging receiving end main controller, and the display screen is used for displaying the current test mode state and the test parameter information.
Further, the wireless charging receiving end further comprises a low dropout linear voltage regulator and a load, the low dropout linear voltage regulator is connected with the rectifying module, the load is connected with the low dropout linear voltage regulator, the low dropout linear voltage regulator is used for converting the direct-current voltage signal into a target load end voltage, and the load is used for measuring the load carrying capacity of the wireless charging receiving end.
Further, the wireless charging receiving terminal further comprises a dial switch, and the dial switch is connected with the wireless charging receiving terminal controller and used for defining different testing modes.
Further, the wireless charging receiving end further comprises an LED indicator lamp, wherein the LED indicator lamp is connected with the wireless charging receiving end controller and used for indicating the current working state of the wireless charging receiving end.
The device for testing the demodulation and decoding performance of the wireless charging can test the demodulation and decoding performance of the wireless charging transmitting end in the design stage, so that a designer can modify and improve the design performance conveniently.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention.
Fig. 1 is a block diagram of a device for testing wireless charging demodulation decoding performance according to the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this embodiment, an apparatus for testing wireless charging demodulation decoding performance is provided, fig. 1 is a block diagram of a structure of an apparatus for testing wireless charging demodulation decoding performance according to an embodiment of the present invention, as shown in fig. 1, including:
The wireless charging system comprises a wireless charging receiving end 100 and a wireless charging transmitting end 200, wherein the wireless charging receiving end 100 is in communication connection with the wireless charging transmitting end 200 through coil induction 300;
The wireless charging receiving terminal 100 comprises a wireless charging receiving terminal main controller 110, a rectifying module 120 and a modulating circuit 130, wherein the rectifying module 120 and the modulating circuit 130 are both in communication connection with the wireless charging receiving terminal main controller 110;
the wireless charging receiving end main controller 110 is configured to receive a test instruction of an upper computer, and send a charging test signal to the wireless charging transmitting end 200 according to the test instruction of the upper computer;
the rectification module 120 is configured to convert an ac voltage signal of the wireless charging transmitting terminal 200 into a dc voltage signal;
The modulation circuit 130 is configured to modulate the charging test signal to obtain a modulated signal;
The wireless charging transmitting terminal 200 can demodulate and decode the modulated signal to obtain a demodulated and decoded signal, and the wireless charging receiving terminal 100 can analyze the demodulation and decoding performance of the wireless charging transmitting terminal according to the demodulated and decoded signal.
The device for testing the demodulation and decoding performance of the wireless charging can test the demodulation and decoding performance of the wireless charging transmitting end in the design stage, so that a designer can modify and improve the design performance conveniently.
It should be understood that the wireless charging receiver main controller 110 may be an MCU, generally a general MCU or an MCU dedicated to the wireless charging receiver, and may be used to control the working state and communication transmission of the wireless charging receiver.
It should be noted that, the rectifying module 120 may be a conventional rectifying circuit, so long as it can convert an ac voltage signal into a dc voltage signal.
Specifically, the modulation circuit 130 may specifically superimpose a communication envelope on the coil and feed back to the wireless communication transmitting end, and the modulation circuit may refer to a modulation circuit recommended by Qi standard protocol, and generally includes two modes of capacitance modulation and resistance modulation.
Specifically, the wireless charging transmitting terminal 200 includes: the wireless charging transmitting terminal comprises a wireless charging transmitting terminal main controller 210, a full-bridge circuit 220, a demodulation circuit 230 and a decoding circuit 240, wherein the full-bridge circuit 220 and the demodulation circuit 230 are both in communication connection with the wireless charging transmitting terminal main controller 210, and the decoding circuit 240 is electrically connected with the demodulation circuit 230;
The wireless charging transmitting end main controller 210 is configured to control wireless charging energy transmission and receive a modulated charging test signal sent by the wireless charging receiving end 100;
The full-bridge circuit 220 is configured to convert a dc voltage signal into an ac voltage signal;
the demodulation circuit 230 is configured to demodulate the modulated charging test signal to obtain a demodulated signal;
The decoding circuit 240 is configured to decode the demodulated signal to obtain a decoded signal.
It should be understood that the wireless charging transmitting end main controller 210 may be a dedicated MCU or a general MCU for wireless charging, and is configured to control the wireless charging energy transmission, receive and parse the communication packet, and perform corresponding processing.
The full bridge circuit 220 may be used as an energy input to an LC (inductance, capacitance) series resonant circuit.
The demodulation circuit 230 is mainly used for demodulating the communication envelope transmitted by the wireless charging receiving end, and can have different designs, and can be a digital demodulation circuit or an analog demodulation circuit, and can be integrated in the wireless charging main control MCU or built by using peripheral elements, and the demodulation signals are transmitted to the decoding circuit, so that the performances of different demodulation circuits can be greatly different.
The decoding circuit 240 is specifically configured to perform judgment and identification on the signal after the demodulation circuit, and convert the signal into a data packet according with QI protocol standard.
It should be noted that the wireless charging transmitting terminal includes a transmitting Terminal (TX) LC series resonant circuit 250, the wireless charging receiving terminal includes a receiving terminal (RX) LC series resonant circuit 140, and both the transmitting terminal LC series resonant circuit 250 and the receiving terminal LC series resonant circuit 140 are coupled to the coil induction 300.
In the embodiment of the invention, the TX LC series resonance circuit can convert direct-current energy into alternating-current energy and store the alternating-current energy into the coil end through the LC series resonance circuit, and the RX LC series resonance circuit can convert the alternating-current energy of the RX coil end into the rectifying module through the LC series resonance circuit. Coil induction is capable of transferring energy from TX to RX coil ends by way of coil coupling induction.
Specifically, the wireless charging receiving terminal includes a first GPIO interface 150, the wireless charging transmitting terminal includes a second GPIO interface 260, the first GPIO interface 150 is connected to the wireless charging receiving terminal main controller 110, the second GPIO interface 260 is connected to the wireless charging transmitting terminal main controller 210, and the wireless charging receiving terminal main controller 110 obtains a demodulation and decoding signal of the wireless charging transmitting terminal through the first GPIO interface 150 and the second GPIO interface 260.
It should be understood that the first GPIO interface, which is a GPIO pin of a set of MCUs, is used to feedback why the TX is currently operating, enter a corresponding test mode, and perform data recording. The second GPIO interface is a GPIO interface of the TX main control MCU and a group of GPIO pins for receiving test state information sent by the RX and performing corresponding test operation.
Specifically, the wireless charging receiving terminal further includes a display screen 160, the display screen 160 is in communication connection with the wireless charging receiving terminal main controller 110, and the display screen 160 is used for displaying the current test mode state and the test parameter information.
In the embodiment of the present invention, the display screen may be an LCD display screen.
Specifically, the wireless charging receiving end further includes a low dropout linear voltage regulator 170 and a load 180, the low dropout linear voltage regulator 170 is connected to the rectifying module 120, the load 180 is connected to the low dropout linear voltage regulator 170, the low dropout linear voltage regulator 170 is configured to convert the dc voltage signal into a target load end voltage, and the load 180 is configured to measure the load capacity of the wireless charging receiving end.
In an embodiment of the present invention, the load 180 may be an electronic load or a power resistor.
Specifically, the wireless charging receiver further includes a dial switch 190, where the dial switch 190 is connected to the wireless charging receiver controller 110 and is used to define different test modes.
It should be understood that in the embodiment of the present invention, the dial switch is formed by combining a plurality of dial switches, and is used to define different test modes, for example, 0001 represents a frequency switching test mode, 0002 represents a modulation mode switching test mode, 003 represents a packet switching test mode, and so on. The input is controlled by the GPIO of the RX MCU.
Specifically, the wireless charging receiver 100 further includes an LED indicator 191, where the LED indicator 191 is connected to the wireless charging receiver controller 110 and is configured to indicate the current working state of the wireless charging receiver.
In an embodiment of the present invention, the wireless charging receiving terminal 100 further includes a DC power supply 192, where the DC power supply 192 is configured to supply power to the wireless charging receiving terminal.
The specific working principle of the device for testing the wireless charging demodulation decoding performance provided by the embodiment of the invention is as follows:
TX is powered on, the full-bridge circuit is opened through PWM, energy is provided to the coil of the LC series resonance circuit, RX converts alternating current signal energy into direct current signal energy through the rectifying module after the RX coil senses the energy, and then the fixed voltage is output through the LDO to be provided to a load end.
The RX MCU starts to start after receiving the working voltage high enough at the RX end, and runs the test program. Firstly, judging the state of a dial switch, entering a corresponding test mode according to the high-low state of the dial switch, and informing the current test mode and parameter setting of TX according to a certain protocol through GPIO in each test.
During testing, the RX MCU firstly encodes a packet sending data format (including frequency, bit width, bit number, interval and the like) according to a communication format defined by the QI standard, and controls the opening and closing of a modulation circuit according to the data format through the output height of the GPIO so as to realize the function of modulating the packet sending. Modulation circuit implementation modulation circuit parameters that can be defined with reference to the Qi standard.
In summary, the device for testing the wireless charging demodulation decoding performance provided by the invention can effectively perform system test analysis on the performance of the wireless charging transmitting end design of the amplitude modulation signal demodulation decoding module from a plurality of key parameters such as the working frequency range, charging distance, load switching, modulation mode switching, different types of receiving end coils, different communication envelope formats, repeated packet sending times and the like of electromagnetic induction wireless charging in a chip design stage or a scheme development stage, can provide data analysis on the design, and is convenient for the self-designed demodulation and decoding module performance improvement.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (6)
1. An apparatus for wireless charging demodulation decoding performance testing, comprising:
The wireless charging receiving end is connected with the wireless charging transmitting end through coil induction communication;
the wireless charging receiving end comprises a wireless charging receiving end main controller, a rectifying module and a modulating circuit, wherein the rectifying module and the modulating circuit are both in communication connection with the wireless charging receiving end main controller;
The wireless charging receiving end main controller is used for receiving a test instruction of the upper computer and sending a charging test signal to the wireless charging transmitting end according to the test instruction of the upper computer;
The rectification module is used for converting an alternating-current voltage signal of the wireless charging transmitting end into a direct-current voltage signal;
the modulation circuit is used for modulating the charging test signal to obtain a modulation signal;
the wireless charging transmitting terminal can demodulate and decode the modulation signal to obtain a demodulated and decoded signal, and the wireless charging receiving terminal can analyze the demodulation and decoding performance of the wireless charging transmitting terminal according to the demodulated and decoded signal;
the wireless charging transmitting terminal comprises: the wireless charging transmitting terminal comprises a wireless charging transmitting terminal main controller, a full-bridge circuit, a demodulation circuit and a decoding circuit, wherein the full-bridge circuit and the demodulation circuit are both in communication connection with the wireless charging transmitting terminal main controller, and the decoding circuit is electrically connected with the demodulation circuit;
the wireless charging transmitting end main controller is used for controlling wireless charging energy transmission and receiving a modulated charging test signal sent by the wireless charging receiving end;
the full-bridge circuit is used for converting the direct-current voltage signal into an alternating-current voltage signal;
the demodulation circuit is used for demodulating the modulated charging test signal to obtain a demodulation signal;
The decoding circuit is used for decoding the demodulation signal to obtain a decoding signal;
The wireless charging receiving end further comprises a low-dropout linear voltage regulator and a load, the low-dropout linear voltage regulator is connected with the rectifying module, the load is connected with the low-dropout linear voltage regulator, the low-dropout linear voltage regulator is used for converting the direct-current voltage signal into target load end voltage, and the load is used for measuring the carrying capacity of the wireless charging receiving end.
2. The apparatus for wireless charging demodulation decoding performance test according to claim 1, wherein the wireless charging transmitting terminal includes a transmitting terminal LC series resonant circuit, the wireless charging receiving terminal includes a receiving terminal LC series resonant circuit, and both the transmitting terminal LC series resonant circuit and the receiving terminal LC series resonant circuit are inductively coupled with the coil.
3. The device for testing the demodulation and decoding performance of the wireless charging system according to claim 1, wherein the wireless charging receiving terminal comprises a first GPIO interface, the wireless charging transmitting terminal comprises a second GPIO interface, the first GPIO interface is connected with the wireless charging receiving terminal main controller, the second GPIO interface is connected with the wireless charging transmitting terminal main controller, and the wireless charging receiving terminal main controller obtains the demodulation and decoding signal of the wireless charging transmitting terminal through the first GPIO interface and the second GPIO interface.
4. The device for testing the performance of wireless charging demodulation and decoding according to claim 1, wherein the wireless charging receiving terminal further comprises a display screen, the display screen is in communication connection with the wireless charging receiving terminal main controller, and the display screen is used for displaying the current testing mode state and the testing parameter information.
5. The apparatus for wireless charging demodulation decoding performance test as claimed in claim 1, wherein the wireless charging receiver further comprises a dial switch, and the dial switch is connected to the wireless charging receiver controller, and is used for defining different test modes.
6. The device for testing the wireless charging demodulation decoding performance according to claim 1, wherein the wireless charging receiving end further comprises an LED indicator lamp, and the LED indicator lamp is connected with the wireless charging receiving end controller and is used for indicating the current working state of the wireless charging receiving end.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014176842A1 (en) * | 2013-04-28 | 2014-11-06 | 海尔集团技术研发中心 | Method and system for multi-load control based on wireless electric energy transmission system |
| CN104967153A (en) * | 2015-07-31 | 2015-10-07 | 付建文 | Electromagnetic induction wireless charging system |
| CN110224466A (en) * | 2019-06-26 | 2019-09-10 | 广东技术师范大学 | A kind of smart phone wireless charger and its charging method |
| CN209375254U (en) * | 2019-03-13 | 2019-09-10 | 武汉大学 | A kind of radio energy transmission system applied to high pressure on-line monitoring equipment |
| CN110865217A (en) * | 2019-12-13 | 2020-03-06 | 珠海市运泰利自动化设备有限公司 | 2FSK demodulation circuit and method for charger mainboard signal test |
| CN214281043U (en) * | 2021-01-22 | 2021-09-24 | 中电海康无锡科技有限公司 | Device for testing wireless charging demodulation decoding performance |
-
2021
- 2021-01-22 CN CN202110088345.7A patent/CN112787415B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014176842A1 (en) * | 2013-04-28 | 2014-11-06 | 海尔集团技术研发中心 | Method and system for multi-load control based on wireless electric energy transmission system |
| CN104967153A (en) * | 2015-07-31 | 2015-10-07 | 付建文 | Electromagnetic induction wireless charging system |
| CN209375254U (en) * | 2019-03-13 | 2019-09-10 | 武汉大学 | A kind of radio energy transmission system applied to high pressure on-line monitoring equipment |
| CN110224466A (en) * | 2019-06-26 | 2019-09-10 | 广东技术师范大学 | A kind of smart phone wireless charger and its charging method |
| CN110865217A (en) * | 2019-12-13 | 2020-03-06 | 珠海市运泰利自动化设备有限公司 | 2FSK demodulation circuit and method for charger mainboard signal test |
| CN214281043U (en) * | 2021-01-22 | 2021-09-24 | 中电海康无锡科技有限公司 | Device for testing wireless charging demodulation decoding performance |
Non-Patent Citations (1)
| Title |
|---|
| 基于电磁感应的无线充电接收电路设计;邓垚光;何高翔;陈泳林;王文烽;;电子测试;20200105(第01期);全文 * |
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