CN113206911A - NFC passive electricity-taking and light-emitting mobile phone shell circuit - Google Patents
NFC passive electricity-taking and light-emitting mobile phone shell circuit Download PDFInfo
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- CN113206911A CN113206911A CN202110464247.9A CN202110464247A CN113206911A CN 113206911 A CN113206911 A CN 113206911A CN 202110464247 A CN202110464247 A CN 202110464247A CN 113206911 A CN113206911 A CN 113206911A
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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
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses an NFC passive power-taking and light-emitting mobile phone shell circuit which comprises an NFC communication module, an MCU module, a voice control module, a touch control module and an LED driving module, wherein the NFC communication module is electrically connected with the MCU module, the voice control module, the touch control module and the LED driving module. The invention has the beneficial effects that: after the NFC function of the mobile phone is turned on, the mobile phone has a high-frequency electromagnetic field signal, the high-frequency electromagnetic field signal is coupled through a receiving antenna to generate an alternating-current voltage, a power supply of an NFC electric field of the mobile phone is obtained through a DCDC rectification voltage reduction technology, an MCU chip, an LED lamp or a display screen and other electronic applications needing power utilization are controlled, the high-frequency electromagnetic field signal can be used as a TWS earphone for charging, a remote controller for driving an infrared sensor, a game controller, a temperature sensor and other related applications, the APP of the mobile phone can be used for controlling various applications, the APP of the mobile phone can generate data communication with a circuit chip of the high-frequency electromagnetic field signal through the NFC of the mobile phone to control various application programs, and the high-frequency electromagnetic field signal processing device is very convenient to use.
Description
Technical Field
The invention relates to an NFC passive power taking circuit, in particular to an NFC passive power taking and light emitting mobile phone shell circuit, and belongs to the technical field of NFC power taking circuit application.
Background
Near Field Communication (NFC for short) is an emerging technology, devices using the NFC technology can exchange data when they are close to each other, and is integrated and evolved from a non-contact Radio Frequency Identification (RFID) and interconnection technology, and by integrating functions of an induction card reader, an induction card and point-to-point Communication on a single chip, applications such as mobile payment, electronic ticketing, door access, mobile identity recognition, anti-counterfeiting and the like are realized by using a mobile terminal.
Chinese patent application No. CN201711190203.1 discloses an NFC antenna power-taking device, which includes an antenna, a rectifying module, an energy storage module, and a current adjusting module; the antenna converts received electromagnetic field energy into first voltage, the rectifying module rectifies the first voltage to obtain second voltage, the second voltage charges the energy storage module through the current adjusting module, the current adjusting module adjusts charging current, and when the second voltage has a weakening trend due to weakening of the electromagnetic field, the energy storage module maintains the stability of a power supply through external discharge to ensure that a circuit works normally; the event has avoided NFC equipment to enter the field when adopting great capacity energy storage module thereby the problem that the load is overweight in leading to the NFC field in the moment energy storage module acquires too much energy, thereby NFC equipment can carry out normal communication, and then discernment and the steady operation of keeping are read by the NFC card reader, this patent exists the power that can't get cell-phone NFC electric field, the electron that can't drive the power consumption through the passive power of cell-phone is used, and the APP that can't make the cell-phone drives application separately through the NFC of cell-phone.
Disclosure of Invention
The invention aims to solve the problems, and provides an NFC passive power-taking and light-emitting mobile phone shell circuit.A high-frequency electromagnetic field signal is generated by a mobile phone after the NFC function of the mobile phone is turned on, an alternating voltage is generated by coupling a receiving antenna, and a power supply of an NFC electric field of the mobile phone, an MCU chip, a remote controller for controlling an LED lamp or a display screen and other electronic applications needing power consumption are obtained by a DCDC rectification voltage reduction technology.
The purpose of the invention can be realized by the following technical scheme: an NFC passive power-taking and light-emitting mobile phone shell circuit comprises an NFC communication module, an MCU module, a voice control module, a touch module and an LED driving module;
the NFC communication module is electrically connected with the MCU module, the voice control module, the touch control module and the LED driving module;
the NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting electric energy in the received NFC signal;
the MCU module is in communication connection with the voice control module, the touch control module and the LED driving module;
the NFC communication module is used for transmitting the electric energy collected by the NFC antenna to the MCU module, the voice control module, the touch control module and the LED driving module.
Preferably, the NFC passive power-taking and light-emitting mobile phone shell circuit further comprises an energy management circuit;
the energy management circuit is electrically connected with the NFC communication module, the MCU module, the voice control module, the touch control module and the LED driving module respectively;
the energy management circuit is used for receiving the electric energy transmitted by the NFC communication module and transmitting the received electric energy to the sound control module, the touch control module and the LED driving module.
Preferably, the NFC passive power-taking and light-emitting mobile phone shell circuit further comprises a rectifying circuit and a voltage stabilizing circuit;
the rectifying circuit is respectively and electrically connected with the NFC communication module, the voltage stabilizing circuit and the energy management circuit, and the NFC communication module is used for receiving the radio frequency energy transmitted by the NFC antenna and transmitting the radio frequency energy to the rectifying circuit;
the rectification circuit is used for converting the radio frequency energy into first direct current electric energy and transmitting the first direct current electric energy to the voltage stabilizing circuit and the energy management circuit;
the voltage stabilizing circuit is used for carrying out voltage reduction and voltage stabilization treatment on the first direct current electric energy, converting the first direct current electric energy into second direct current electric energy and supplying power to the NFC communication module and the energy management circuit;
the energy management circuit is used for transmitting the first direct current electric energy to the MCU module, the voice control module, the touch control module and the LED driving module.
Preferably, the NFC passive power-taking and light-emitting mobile phone shell circuit further comprises an energy storage module;
the energy management circuit is electrically connected with the energy storage module and is used for transmitting the received second direct current electric energy to the energy storage module for charging.
Preferably, the LED driving module further comprises an expansion IC circuit, an MOS driving circuit and an LED lamp bead;
the expansion IC circuit is in signal interaction with the MCU module;
the expansion IC circuit is in signal connection with the MOS drive circuit so as to control the LED lamp beads to emit light.
Preferably, the MCU module detects mode switching (including a voice control mode) of the touch module, the MCU module performs signal interaction with the extended IC circuit, and the extended IC circuit controls the MOS drive circuit to control the LED lamp beads to emit light.
Preferably, the MCU module detects that the touch module mode switches to the acoustic control mode, and the MCU module gathers the sound that the acoustic control module received and handles, and the MCU module carries out signal interaction with the extension IC circuit, thereby extension IC circuit control MOS drive circuit realizes that control LED lamp pearl is luminous.
Preferably, the NFC antenna includes an energy antenna, a receiving antenna, and a transmitting antenna; the energy antenna is used for collecting electric energy in the received NFC signal;
the NFC communication module further comprises a demodulation module, a modulation module, the receiving antenna is electrically connected with the demodulation module, the transmitting antenna is electrically connected with the modulation module, and the MCU module is respectively electrically connected with the demodulation module and the modulation module;
the receiving antenna is used for receiving an NFC signal transmitted by an NFC card reader and sending the NFC signal to the demodulation module, and the demodulation module demodulates and transmits demodulated data to the MCU module;
the MCU module is used for transmitting data to be transmitted to the modulation module according to a preset format, and transmitting an NFC signal to the NFC card reader through the transmitting antenna after the data to be transmitted is modulated by the modulation module.
Compared with the prior art, the invention has the beneficial effects that:
after the NFC function of the mobile phone is opened, the mobile phone has a high-frequency electromagnetic field signal, the invention can be used for controlling various applications by using the APP of the mobile phone, and the APP of the mobile phone can generate data communication with the circuit chip of the invention through the NFC of the mobile phone to control various application programs.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a circuit diagram of an NFC communication module according to the present invention.
FIG. 2 is a circuit diagram of a voice control module according to the present invention.
FIG. 3 is a schematic diagram of a rectifier circuit according to the present invention.
FIG. 4 is a schematic circuit diagram of the MCU module according to the present invention.
FIG. 5 is a schematic diagram of an energy management circuit according to the present invention.
FIG. 6 is a schematic diagram of a voltage regulator circuit according to the present invention.
FIG. 7 is a schematic diagram of an extended IC circuit according to the present invention.
FIG. 8 is a diagram of a MOS driver circuit according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, an NFC passive power-taking and light-emitting mobile phone shell circuit includes an NFC communication module, an MCU module, a voice control module, a touch module, and an LED driving module;
the NFC communication module is electrically connected with the MCU module, the voice control module, the touch control module and the LED driving module;
the NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting electric energy in the received NFC signal;
the MCU module is in communication connection with the voice control module, the touch control module and the LED driving module;
the NFC communication module is used for transmitting the electric energy collected by the NFC antenna to the MCU module, the voice control module, the touch control module and the LED driving module.
The NFC passive power-taking and light-emitting mobile phone shell circuit further comprises an energy management circuit;
the energy management circuit is electrically connected with the NFC communication module, the MCU module, the voice control module, the touch control module and the LED driving module respectively;
the energy management circuit is used for receiving the electric energy transmitted by the NFC communication module and transmitting the received electric energy to the sound control module, the touch control module and the LED driving module.
The NFC passive power-taking and light-emitting mobile phone shell circuit further comprises a rectifying circuit and a voltage stabilizing circuit;
the rectifying circuit is respectively and electrically connected with the NFC communication module, the voltage stabilizing circuit and the energy management circuit, and the NFC communication module is used for receiving the radio frequency energy transmitted by the NFC antenna and transmitting the radio frequency energy to the rectifying circuit;
the rectification circuit is used for converting the radio frequency energy into first direct current electric energy and transmitting the first direct current electric energy to the voltage stabilizing circuit and the energy management circuit;
the voltage stabilizing circuit is used for carrying out voltage reduction and voltage stabilization treatment on the first direct current electric energy, converting the first direct current electric energy into second direct current electric energy and supplying power to the NFC communication module and the energy management circuit;
the energy management circuit is used for transmitting the first direct current electric energy to the MCU module, the voice control module, the touch control module and the LED driving module.
The NFC passive power-taking and light-emitting mobile phone shell circuit further comprises an energy storage module;
the energy management circuit is electrically connected with the energy storage module and is used for transmitting the received second direct current electric energy to the energy storage module for charging.
The LED driving module further comprises an expansion IC circuit, an MOS driving circuit and an LED lamp bead;
the expansion IC circuit is in signal interaction with the MCU module;
the expansion IC circuit is in signal connection with the MOS drive circuit so as to control the LED lamp beads to emit light.
The MCU module detects mode switching (including the acoustic control mode) of the touch module, the MCU module carries out signal interaction with the extended IC circuit, and the extended IC circuit controls the MOS drive circuit to control the LED lamp beads to emit light.
The MCU module detects that the touch module mode is switched to the sound control mode, collects the sound received by the sound control module and processes the sound, the MCU module carries out signal interaction with the extension IC circuit, and the extension IC circuit controls the MOS drive circuit to control the LED lamp beads to emit light.
The NFC antenna comprises an energy antenna, a receiving antenna and a transmitting antenna; the energy antenna is used for collecting electric energy in the received NFC signal;
the NFC communication module further comprises a demodulation module, a modulation module, the receiving antenna is electrically connected with the demodulation module, the transmitting antenna is electrically connected with the modulation module, and the MCU module is respectively electrically connected with the demodulation module and the modulation module;
the receiving antenna is used for receiving an NFC signal transmitted by an NFC card reader and sending the NFC signal to the demodulation module, and the demodulation module demodulates and transmits demodulated data to the MCU module;
the MCU module is used for transmitting data to be transmitted to the modulation module according to a preset format, and transmitting an NFC signal to the NFC card reader through the transmitting antenna after the data is modulated by the modulation module, after the NFC function of the mobile phone adopted by the invention is opened, the mobile phone has a high-frequency electromagnetic field signal, the invention can be used for controlling various applications by using APP of the mobile phone, and the APP of the mobile phone can generate data communication with the circuit chip of the invention through NFC of the mobile phone to control various application programs, so that the application program is very convenient to use.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a passive luminous cell-phone shell circuit of getting of NFC which characterized in that: the system comprises an NFC communication module, an MCU module, a voice control module, a touch module and an LED driving module;
the NFC communication module is electrically connected with the MCU module, the voice control module, the touch control module and the LED driving module;
the NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting electric energy in the received NFC signal;
the MCU module is in communication connection with the voice control module, the touch control module and the LED driving module;
the NFC communication module is used for transmitting the electric energy collected by the NFC antenna to the MCU module, the voice control module, the touch control module and the LED driving module.
2. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 1, further comprising an energy management circuit;
the energy management circuit is electrically connected with the NFC communication module, the MCU module, the voice control module, the touch control module and the LED driving module respectively;
the energy management circuit is used for receiving the electric energy transmitted by the NFC communication module and transmitting the received electric energy to the sound control module, the touch control module and the LED driving module.
3. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 2, further comprising a rectifying circuit and a voltage stabilizing circuit;
the rectifying circuit is respectively and electrically connected with the NFC communication module, the voltage stabilizing circuit and the energy management circuit, and the NFC communication module is used for receiving the radio frequency energy transmitted by the NFC antenna and transmitting the radio frequency energy to the rectifying circuit;
the rectification circuit is used for converting the radio frequency energy into first direct current electric energy and transmitting the first direct current electric energy to the voltage stabilizing circuit and the energy management circuit;
the voltage stabilizing circuit is used for carrying out voltage reduction and voltage stabilization treatment on the first direct current electric energy, converting the first direct current electric energy into second direct current electric energy and supplying power to the NFC communication module and the energy management circuit;
the energy management circuit is used for transmitting the first direct current electric energy to the MCU module, the voice control module, the touch control module and the LED driving module.
4. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 3, further comprising an energy storage module;
the energy management circuit is electrically connected with the energy storage module and is used for transmitting the received second direct current electric energy to the energy storage module for charging.
5. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 3, wherein the LED driving module further comprises an expansion IC circuit, an MOS driving circuit and an LED lamp bead;
the expansion IC circuit is in signal interaction with the MCU module;
the expansion IC circuit is in signal connection with the MOS drive circuit so as to control the LED lamp beads to emit light.
6. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 5, wherein the MCU module detects mode switching of the touch module, the MCU module performs signal interaction with the expansion IC circuit, and the expansion IC circuit controls the MOS drive circuit to control the LED lamp beads to emit light.
7. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 6, wherein the MCU module detects that the mode of the touch module is switched to a voice control mode, the MCU module collects sound received by the voice control module to process the sound, the MCU module carries out signal interaction with the expansion IC circuit, and the expansion IC circuit controls the MOS drive circuit to control the LED lamp beads to emit light.
8. The NFC passive power-taking and light-emitting mobile phone shell circuit according to claim 1, wherein the NFC antenna comprises an energy antenna, a receiving antenna and a transmitting antenna; the energy antenna is used for collecting electric energy in the received NFC signal;
the NFC communication module further comprises a demodulation module, a modulation module, the receiving antenna is electrically connected with the demodulation module, the transmitting antenna is electrically connected with the modulation module, and the MCU module is respectively electrically connected with the demodulation module and the modulation module;
the receiving antenna is used for receiving an NFC signal transmitted by an NFC card reader and sending the NFC signal to the demodulation module, and the demodulation module demodulates and transmits demodulated data to the MCU module;
the MCU module is used for transmitting data to be transmitted to the modulation module according to a preset format, and transmitting an NFC signal to the NFC card reader through the transmitting antenna after the data to be transmitted is modulated by the modulation module.
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CN202110464247.9A CN113206911A (en) | 2021-04-28 | 2021-04-28 | NFC passive electricity-taking and light-emitting mobile phone shell circuit |
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CN202110464247.9A CN113206911A (en) | 2021-04-28 | 2021-04-28 | NFC passive electricity-taking and light-emitting mobile phone shell circuit |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117789665A (en) * | 2024-02-28 | 2024-03-29 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
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CN109698713A (en) * | 2017-10-20 | 2019-04-30 | 南京启纬智芯微电子有限公司 | NFC interface with energy management functionality |
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CN211127891U (en) * | 2019-09-20 | 2020-07-28 | 广州小鸡快跑网络科技有限公司 | Support cell-phone shell of light control |
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CN117789665A (en) * | 2024-02-28 | 2024-03-29 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
CN117789665B (en) * | 2024-02-28 | 2024-05-10 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
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