CN113595204B - Automatic reverse charging mobile terminal - Google Patents
Automatic reverse charging mobile terminal Download PDFInfo
- Publication number
- CN113595204B CN113595204B CN202110930804.1A CN202110930804A CN113595204B CN 113595204 B CN113595204 B CN 113595204B CN 202110930804 A CN202110930804 A CN 202110930804A CN 113595204 B CN113595204 B CN 113595204B
- Authority
- CN
- China
- Prior art keywords
- mobile terminal
- electric energy
- circuit
- wireless
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000013459 approach Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
-
- 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
-
- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention provides an automatic reverse charging mobile terminal, which comprises more than one mobile terminal and a wireless charger for charging the wireless terminals, wherein the mobile terminal comprises a first coil, a first wireless power receiving circuit, a first wireless power transmitting circuit, a charging circuit, a battery, a voltage converter, a switch K1, a switch K3, a switch K4, an amplifying circuit, a weak transmitting circuit and a microprocessor.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to an automatic reverse charging mobile terminal.
Background
At present, electronic devices such as mobile phones, tablet computers, notebook computers, intelligent watches, electric toothbrushes and the like become one of indispensable articles in work and life of people, and the requirements of people on the functions of the electronic devices and the realization convenience are higher. For example, the charging process of the electronic equipment can adopt a wireless charging technology, the limitation of a power line is not needed to be considered, and the abrasion of devices caused by frequent plugging and unplugging of the power line is reduced.
For the electronic equipment supporting wireless charging, except the electronic equipment which can be in a wireless forward charging mode, receiving electric energy transmitted by external equipment; the wireless charging system can also be used as a charging device, electric energy is transmitted to other electronic devices in a wireless charging mode, and after a user is specifically required to unlock the electronic device, the wireless reverse charging mode of the electronic device is manually started, so that the electronic device is used as the charging device to output electric energy, and the process is complicated.
At present, mobile terminals such as a smart phone and the like can be placed in a wireless charger for wireless charging, and two mobile terminals are placed together, so that one mobile terminal can be manually started to charge in the reverse direction, and the other mobile terminal is subjected to wireless charging. The manual operation is relatively troublesome, and ten thousand mobile terminals all start the reverse charging function, and wireless charging circuits and the like in the mobile terminals can be damaged.
In the chinese patent application No. 202011587266.2 and publication No. 2021.04.30, a charging control method, apparatus and electronic device are disclosed, where a first electronic device may obtain first status information indicating whether the first status information can be used as a charging device, detect that the first status information meets a wireless charging condition, automatically control the first electronic device to enter a wireless reverse charging mode, and as the charging device, send electric energy to a second electronic device located in a wireless charging radiation range of the first electronic device and in a wireless forward charging mode, so as to meet a charging requirement of the second electronic device. Therefore, the wireless reverse charging mode can be automatically switched and controlled without manually entering the setting interface of the first electronic equipment, the operation is simple and convenient, and the flexibility of wireless charging control is improved.
However, in the charging control method of the invention, the first electronic device is controlled to stop outputting the electric energy only after the charged device is full of the electric energy, so that the problem of insufficient electric energy of the first electronic device is easy to occur in charging, and if the problem of shutdown of the first electronic device due to the fact that the electric energy is consumed is not noticed, the problem of shutdown of the first electronic device is likely to occur.
Disclosure of Invention
The invention provides an automatic reverse charging mobile terminal, which can realize automatic reverse charging when a wireless charger positively charges one mobile terminal and is close to another mobile terminal, and can prevent the power of one mobile terminal from being excessively low to shut down.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the mobile terminal comprises more than one mobile terminal and a wireless charger for charging the wireless terminals, wherein the mobile terminal comprises a first coil, a first wireless power receiving circuit, a first wireless power transmitting circuit, a charging circuit, a battery, a voltage converter, a switch K1, a switch K3, a switch K4, an amplifying circuit, a weak transmitting circuit and a microprocessor, wherein the first coil is connected with one end of the switch K3, the other end of the switch K3 is connected with the first wireless power receiving circuit, the first wireless power receiving circuit is connected with the charging circuit through the switch K4, the charging circuit is connected with the battery, and the battery is also connected with the voltage converter; the first coil is further connected with a first wireless electric energy transmitting circuit through a third end of the switch K3, the first wireless electric energy transmitting circuit is connected with one end of the switch K1, the other end of the switch K1 is connected with the voltage converter, the first wireless electric energy transmitting circuit is further connected with a weak transmitting circuit, and the weak transmitting circuit is connected with the microprocessor through the amplifying circuit.
According to the structure, when the mobile terminal is charged, the mobile terminal is close to the wireless charger, the wireless charger can charge the mobile terminal positively, when the mobile terminal with the lower electric quantity percentage needs to be charged, the other mobile terminal is close to the mobile terminal, microprocessors of the two mobile terminals can compare the electric quantity percentages of the two mobile terminals and control the mobile terminal with the higher electric quantity percentage to charge the mobile terminal with the lower electric quantity percentage reversely, when the mobile terminal is separated from the wireless charger, the wireless charger can be disconnected to charge the mobile terminal positively, and the mobile terminal with the higher electric quantity percentage can charge one end with the lower electric quantity percentage until the two mobile terminals are separated from each other or the electric quantity percentages of the two mobile terminals differ little, so that the mobile terminal is prevented from being powered off due to the excessively low electric quantity.
Further, the wireless charger comprises a second coil, a second wireless electric energy transmitting circuit, a switch K5, a power supply Vcc, a second weak transmitting circuit, a second amplifying circuit and a second microprocessor, wherein the electric energy output end of the second wireless electric energy transmitting circuit is connected with the second weak transmitting circuit, the second weak transmitting circuit is connected with the second microprocessor through the second amplifying circuit, the electric energy input end of the second wireless electric energy transmitting circuit is also connected with the power supply Vcc through the switch K5, the electric energy charging end of the second wireless electric energy transmitting circuit is connected with the second coil, when a mobile terminal is charged, the mobile terminal is close to the close-fitting wireless charger, and the wireless charger and the mobile terminal simultaneously acquire time synchronization signals; the first wireless electric energy receiving circuit of the mobile terminal outputs a charging signal to the second microprocessor of the wireless charger, the second microprocessor receives the charging signal and starts to charge the mobile terminal, and if the charging signal disappears, the charging is stopped.
Further, the weak emission circuit includes resistance R0, resistance R1 and switch K2, resistance R0's one end is connected with first wireless electric energy emission circuit, resistance R0's the other end and resistance R1 establish ties and set up, resistance R1's the other end ground connection, switch K2 and resistance R0 parallelly connected setting, still be connected with amplifier circuit in resistance R0 and resistance R1's one end that is connected, when two mobile terminal are close to each other, the electric current that first coil flowed through first wireless electric energy emission circuit can increase in the twinkling of an eye, under weak emission circuit's effect, when first wireless electric energy emission circuit during operation, the voltage drop at resistance R0 both ends grow for the voltage of first wireless electric energy emission circuit output reduces, thereby protection first wireless electric energy emission circuit is difficult to damage.
Further, the second weak emission circuit includes resistance R2, resistance R3 and switch K6, resistance R2's one end is connected with second wireless electric energy emission circuit, resistance R2's the other end and resistance R3 series connection set up, resistance R3's the other end ground connection, switch K6 and resistance R2 parallel connection set up, still with second amplifier circuit at resistance R2 and resistance R3's one end that is connected, when a mobile terminal is close to wireless charger, the electric current that the second coil flowed through second wireless electric energy emission circuit can increase in the twinkling of an eye, under weak emission circuit's effect, when second wireless electric energy emission circuit during operation, the voltage drop at resistance R2 both ends grow for the voltage of second wireless electric energy emission circuit output reduces, thereby protection second wireless electric energy emission circuit is difficult to damage the connection.
Further, when charging is started, a first coil of a mobile terminal with high electric quantity percentage is communicated with the first wireless electric energy transmitting circuit, the output voltage of the battery outputs the power supply voltage through the voltage converter, and when the switch K1 is conducted, the battery is communicated with the first wireless electric energy transmitting circuit through the voltage converter, and the mobile terminal with high electric quantity percentage outputs electric energy to the mobile terminal with low electric quantity percentage through the first wireless electric energy transmitting circuit.
Further, a first coil of a mobile terminal with low electric quantity percentage is connected with the first wireless electric energy receiving circuit, the first wireless electric energy receiving circuit is connected with the charging circuit, and the mobile terminal with low electric quantity percentage receives electric energy output by one end with high electric quantity percentage through the first wireless electric energy receiving circuit.
Drawings
Fig. 1 is a schematic circuit diagram of a mobile terminal according to the present invention.
Fig. 2 is a schematic circuit diagram of a wireless charger according to the present invention.
Fig. 3 is a flow chart of the wireless charging method of the present invention.
Fig. 4 is a simple schematic of a rectangular wave duty cycle.
Fig. 5 is a schematic diagram showing that the rectangular wave duty ratio of two mobile terminals is larger than a set value.
Fig. 6 is a schematic diagram showing that the rectangular wave duty ratio of two mobile terminals is smaller than a set value.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Example 1.
As shown in fig. 1 to 6, the wireless charging method of the mobile terminal with automatic reverse charging is implemented by more than one mobile terminal 1 and a wireless charger 2, the mobile terminal 1 includes a first coil 11, a first wireless power receiving circuit 12, a first wireless power transmitting circuit 13, a charging circuit 14, a battery 15, a voltage converter 16, a switch K1, a switch K3, a switch K4, and an amplifying circuit 17 (in this embodiment, a signal that is transmitted to the microprocessor by the first wireless power transmitting circuit is amplified by the amplifying circuit, a specific amplifying method will not be described in detail in the following), a weak transmitting circuit 3, and a microprocessor 4, the first coil 11 is connected to one end K31 of the switch K3, the other end K32 of the switch K3 is connected to the first wireless power receiving circuit 12, the first wireless power receiving circuit 12 is connected to the charging circuit 14 by the switch K4, the charging circuit 14 is connected to the battery 15, and the battery 15 is also connected to the voltage converter 16; the first coil 11 is also connected with a first wireless electric energy transmitting circuit 13 through a third end K33 of a switch K3, the first wireless electric energy transmitting circuit 13 is connected with one end of a switch K1, the other end of the switch K1 is connected with a voltage converter 16, the first wireless electric energy transmitting circuit 13 is also connected with a weak transmitting circuit 3, and the weak transmitting circuit 3 is connected with a microprocessor 4 through an amplifying circuit 17; in the present embodiment, the mobile terminal performs reception and transmission of signals through the first radio power receiving circuit 12 and the first radio power transmitting circuit 13, and the mobile terminal charges the battery 15 through the charging circuit 14.
The wireless charger 2 includes a second coil 21, a second wireless power transmitting circuit 22, a switch K5, a power supply Vcc, a second weak transmitting circuit 23, a second amplifying circuit 24 (in this embodiment, the signal transmitted from the second wireless power transmitting circuit to the second microprocessor is amplified by the second amplifying circuit, a specific amplifying method is the prior art, which will not be described in detail below), and the second microprocessor 25, where an electric power output end of the second wireless power transmitting circuit 22 is connected to the second weak transmitting circuit 23, the second weak transmitting circuit 23 is connected to the second microprocessor 25 through the second amplifying circuit 24, an electric power input end of the second wireless power transmitting circuit 24 is also connected to the power supply Vcc through the switch K5, and an electric power charging end of the second wireless power transmitting circuit is connected to the second coil; in this embodiment, the wireless charger carries out signal transmission through the second wireless power transmitting circuit.
As shown in fig. 1, the weak emission circuit includes a resistor R0, a resistor R1, and a switch K2, one end of the resistor R0 is connected to the first wireless power emission circuit 13, the other end of the resistor R0 is connected in series with the resistor R1, the other end of the resistor R1 is grounded, the switch K2 is connected in parallel with the resistor R0, one end of the resistor R0 connected to the resistor R1 is further connected to the amplifying circuit 17, when two mobile terminals are close to each other, the current flowing through the first wireless power emission circuit by the first coil will increase instantaneously, and under the action of the weak emission circuit, when the first wireless power emission circuit works, the voltage drop at two ends of the resistor R0 will become large, so that the voltage output by the first wireless power emission circuit is reduced, thereby protecting the first wireless power emission circuit from being damaged easily.
As shown in fig. 2, the second weak emission circuit includes a resistor R2, a resistor R3, and a switch K6, one end of the resistor R2 is connected to the second radio energy emission circuit 22, the other end of the resistor R2 is connected in series with the resistor R3, the other end of the resistor R3 is grounded, the switch K6 is connected in parallel with the resistor R2, one end connected to the resistor R2 and the resistor R3 is further connected to the second amplifying circuit 24, when a mobile terminal approaches to the wireless charger, the current flowing through the second radio energy emission circuit by the second coil will increase instantaneously, and under the action of the weak emission circuit, when the second radio energy emission circuit works, the voltage drop at two ends of the resistor R2 will become large, so that the voltage output by the second radio energy emission circuit will decrease, thereby protecting the second radio energy emission circuit from being damaged easily.
According to the structure, when one mobile terminal is charged, the mobile terminal is close to the wireless charger, the wireless charger can forward charge the mobile terminal, when the other mobile terminal with lower electric quantity percentage is required to be charged, the other mobile terminal is close to the mobile terminal, microprocessors of the two mobile terminals can compare the electric quantity percentages of the two mobile terminals and control the mobile terminal with higher electric quantity percentage to reverse charge the mobile terminal with lower electric quantity percentage, when the mobile terminal is separated from the wireless charger, the wireless charger can be disconnected to forward charge the mobile terminal, and the mobile terminal with higher electric quantity percentage can also charge one end with lower electric quantity percentage until the two mobile terminals are separated from each other or the electric quantity percentages of the two mobile terminals are different, so that the mobile terminal is prevented from being powered off due to excessively low electric quantity
Example 2.
The specific steps of the charging method of the mobile terminal capable of automatically and reversely charging are as follows:
(1) And enabling the mobile terminal to be close to the wireless charger, and enabling the wireless charger and the mobile terminal to acquire time synchronization signals at the same time.
(2) The first wireless power receiving circuit of the mobile terminal outputs a charging signal to the second microprocessor of the wireless charger, the second microprocessor receives the charging signal and starts to charge the mobile terminal, and if the charging signal disappears, the charging is stopped. (3) When another mobile terminal approaches to the previous mobile terminal, the two mobile terminals acquire the time synchronization signals and start timing. (301) Comparing the electric quantity percentages of the two mobile terminals, and if the electric quantity percentages of the two mobile terminals differ by less than a preset set value, restarting timing and continuously comparing the electric quantity percentages of the two mobile terminals.
(302) If the electric quantity percentages of the two mobile terminals differ by more than a preset set value, stopping timing, after timing is stopped, a first coil of the mobile terminal with low electric quantity percentage obtains a charging signal and outputs the charging signal to a microprocessor of the mobile terminal through a first wireless electric energy receiving circuit, and the microprocessor of the mobile terminal stops timing and simultaneously sends a reverse charging signal to the microprocessor of the mobile terminal with high electric quantity percentage. (4) And the mobile terminal with high electric quantity percentage receives the reverse charging signal, and controls the first wireless electric energy transmitting circuit of the mobile terminal to output electric energy to the first wireless electric energy receiving circuit of the mobile terminal with low electric quantity percentage for reverse charging. (5) And the two mobile terminals repeatedly acquire the electric quantity percentages and compare the electric quantity percentages, and stop reverse charging when the electric quantity percentages differ by less than a preset set value.
In this embodiment, the specific acquiring or outputting and controlling methods of the PWM module, which are provided with the timer and acquire or output and control the signal, in the microprocessor and the second microprocessor are the prior art, and will not be described further.
In the present embodiment, as shown in fig. 5 and 6, one mobile terminal is denoted by 01, and the other mobile terminal is denoted by 02.
The step (1) specifically comprises: the specific acquisition method of the time synchronization signal comprises the following steps: when the mobile terminal approaches to the wireless charger, a first coil of the mobile terminal and a second coil of the wireless charger mutually sense and receive a signal, a K31 end and a K33 end of a switch K3 of the mobile terminal are communicated, the first coil is connected with a first wireless electric energy transmitting circuit, the first coil transmits the signal to a microprocessor through the first wireless electric energy transmitting circuit, the microprocessor receives the signal and controls a timer in the microprocessor to start timing, a second coil also receives the signal at the same time, a switch K6 is conducted, the second wireless electric energy transmitting circuit is communicated with a second amplifying circuit, the second coil amplifies the signal through the second amplifying circuit and then transmits the signal to a second microprocessor, the second microprocessor receives the signal and controls the timer to start timing, the wireless charger and the mobile terminal start timing, the K31 end and the K32 end of the switch K3 of the mobile terminal are connected after the timing synchronization of the wireless charger and the mobile terminal, the first coil is connected with a first wireless electric energy receiving circuit, the first coil transmits a charging signal to the microprocessor through the first wireless electric energy receiving circuit, the microprocessor acquires the charging signal and stops simultaneously and the first wireless electric energy receiving circuit to transmit the charging signal to the second microprocessor, and simultaneously conducts the second wireless receiving circuit 4.
The step (2) specifically comprises: the specific method for receiving the charging signal by the second microprocessor is as follows: the first wireless electric energy receiving circuit sends a charging signal to the wireless charger, after a second coil of the wireless charger receives the signal, the second coil amplifies the signal through a second amplifying circuit and then sends the signal to a second microprocessor through a second wireless electric energy transmitting circuit, the second microprocessor controls a timer to stop timing and controls a switch K5 to be conducted after receiving the charging signal, a power supply Vcc starts to output electric energy to the second wireless electric energy transmitting circuit, and the second wireless electric energy transmitting circuit sends the electric energy to the first electric energy receiving circuit of the mobile terminal to start charging.
The step (3) specifically comprises: the time synchronization signal acquisition method specifically includes that first coils of two mobile terminals mutually sense to obtain a signal, a K31 end and a K33 end of a switch K3 of the two mobile terminals are communicated, the first coils are connected with a first wireless electric energy transmitting circuit, the signal is sent to a microprocessor through the first wireless electric energy transmitting circuit, and the microprocessor receives the signal and controls a timer in the microprocessor to start timing.
As shown in fig. 4, step (301) specifically includes: the "comparison of the electric quantity percentages of two mobile terminals" is specifically: the method comprises the steps of obtaining electric quantity percentages through microprocessors of two mobile terminals and determining rectangular wave duty ratios according to the electric quantity percentages, wherein the rectangular wave duty ratios are working time t1 of a first coil connected with a first wireless electric energy receiving circuit and working time t2 of a weak transmitting circuit, determining the rectangular wave duty ratios through the working time t1 and the working time t2, and comparing the rectangular wave duty ratios of the two mobile terminals to determine electric quantity percentage difference values.
Step (302) specifically includes: after the first coil of the mobile terminal with low electric quantity percentage obtains a charging signal, K31 and K32 of a switch K3 of the mobile terminal with low electric quantity percentage are conducted, the first coil of the mobile terminal with low electric quantity percentage is communicated with the first wireless electric energy receiving circuit and transmits the charging signal to the microprocessor, the microprocessor of the mobile terminal with low electric quantity percentage receives the charging signal and stops timing, and meanwhile, a switch K4 of the mobile terminal with low electric quantity percentage is conducted.
As shown in fig. 5 and 6, step (302) specifically includes: if the electric quantity percentages of the two mobile terminals differ by more than a preset set value, a first coil of the mobile terminal with high electric quantity percentage is communicated with a first wireless electric energy transmitting circuit; and the first coil of the mobile terminal with low electric quantity percentage is communicated with the first wireless electric energy receiving circuit, and the first wireless electric energy transmitting circuit of the mobile terminal with high electric quantity percentage transmits electric energy to the first wireless electric energy receiving circuit of the mobile terminal with low electric quantity percentage for charging.
The step (4) specifically comprises: the specific method for acquiring the reverse charging signal comprises the following steps: the first coil of the mobile terminal with high electric quantity percentage receives a reverse charging signal, the K31 end of the switch K3 of the mobile terminal with high electric quantity percentage is communicated with the K33 end, the first coil of the mobile terminal with high electric quantity percentage amplifies the reverse charging signal through the first wireless electric energy transmitting circuit and then transmits the signal to the microprocessor, the microprocessor of the mobile terminal with high electric quantity percentage receives the reverse re-signal and then controls the switch K1 to be conducted, and the first wireless electric energy transmitting circuit of the mobile terminal with high electric quantity percentage outputs electric energy to the first wireless electric energy receiving circuit of the mobile terminal with low electric quantity percentage to be reversely charged.
The step (4) specifically comprises: when charging, the first coil of the mobile terminal with low electric quantity percentage is communicated with the first wireless electric energy receiving circuit, the first wireless electric energy receiving circuit sends a charging signal to the microprocessor, when the microprocessor receives the charging signal, the charging is enabled, and if the charging signal is disconnected, the step (1) is repeated.
When the switch K1 is turned on, the battery is communicated with the first wireless electric energy transmitting circuit through the voltage converter, and the mobile terminal with high electric quantity percentage outputs electric energy to the mobile terminal with low electric quantity percentage through the first wireless electric energy transmitting circuit.
The first coil of the mobile terminal with low electric quantity percentage is connected with the first wireless electric energy receiving circuit, the first wireless electric energy receiving circuit is connected with the charging circuit, and the mobile terminal with low electric quantity percentage receives electric energy output by one end with high electric quantity percentage through the first wireless electric energy receiving circuit.
Claims (6)
1. The utility model provides an automatic reverse mobile terminal who charges, includes more than one mobile terminal and is used for carrying out wireless charger that charges to wireless terminal which characterized in that: the mobile terminal comprises a first coil, a first wireless electric energy receiving circuit, a first wireless electric energy transmitting circuit, a charging circuit, a battery, a voltage converter, a switch K1, a switch K3, a switch K4, an amplifying circuit, a weak transmitting circuit and a microprocessor, wherein the first coil is connected with one end of the switch K3, the other end of the switch K3 is connected with the first wireless electric energy receiving circuit, the first wireless electric energy receiving circuit is connected with the charging circuit through the switch K4, the charging circuit is connected with the battery, and the battery is also connected with the voltage converter; the first coil is also connected with a first wireless electric energy transmitting circuit through a third end of a switch K3, the first wireless electric energy transmitting circuit is connected with one end of a switch K1, the other end of the switch K1 is connected with a voltage converter, the first wireless electric energy transmitting circuit is also connected with a weak transmitting circuit, and the weak transmitting circuit is connected with a microprocessor through an amplifying circuit;
the first wireless power receiving circuit of the mobile terminal outputs a charging signal to the second microprocessor of the wireless charger, the second microprocessor receives the charging signal and starts to charge the mobile terminal, and if the charging signal disappears, the charging is stopped; when the other mobile terminal approaches to the previous mobile terminal, the two mobile terminals acquire time synchronization signals and start timing; comparing the electric quantity percentages of the two mobile terminals, and if the electric quantity percentages of the two mobile terminals differ by less than a preset set value, restarting timing and continuously comparing the electric quantity percentages of the two mobile terminals; if the electric quantity percentages of the two mobile terminals differ by more than a preset set value, stopping timing, after timing is stopped, a first coil of the mobile terminal with low electric quantity percentage obtains a charging signal and outputs the charging signal to a microprocessor of the mobile terminal through a first wireless electric energy receiving circuit, and the microprocessor of the mobile terminal stops timing and simultaneously sends a reverse charging signal to the microprocessor of the mobile terminal with high electric quantity percentage.
2. The mobile terminal for automatic reverse charging according to claim 1, wherein: the wireless charger comprises a second coil, a second wireless electric energy transmitting circuit, a switch K5, a power supply Vcc, a second weak transmitting circuit, a second amplifying circuit and a second microprocessor, wherein the electric energy output end of the second wireless electric energy transmitting circuit is connected with the second weak transmitting circuit, the second weak transmitting circuit is connected with the second microprocessor through the second amplifying circuit, the electric energy input end of the second wireless electric energy transmitting circuit is also connected with the power supply Vcc through the switch K5, and the electric energy charging end of the second wireless electric energy transmitting circuit is connected with the second coil.
3. The mobile terminal for automatic reverse charging according to claim 1, wherein: the weak transmitting circuit comprises a resistor R0, a resistor R1 and a switch K2, one end of the resistor R0 is connected with the first wireless electric energy transmitting circuit, the other end of the resistor R0 is connected with the resistor R1 in series, the other end of the resistor R1 is grounded, the switch K2 is connected with the resistor R0 in parallel, and one end, connected with the resistor R0 and the resistor R1, is also connected with the amplifying circuit.
4. An automatically reverse charged mobile terminal according to claim 2, wherein: the second weak emission circuit comprises a resistor R2, a resistor R3 and a switch K6, one end of the resistor R2 is connected with the second wireless electric energy emission circuit, the other end of the resistor R2 is connected with the resistor R3 in series, the other end of the resistor R3 is grounded, the switch K6 is connected with the resistor R2 in parallel, and one end, connected with the resistor R2 and the resistor R3, is also connected with the second amplifying circuit.
5. The mobile terminal for automatic reverse charging according to claim 1, wherein: when the switch K1 is turned on, the battery is communicated with the first wireless electric energy transmitting circuit through the voltage converter, and the mobile terminal with high electric quantity percentage outputs electric energy to the mobile terminal with low electric quantity percentage through the first wireless electric energy transmitting circuit.
6. The mobile terminal for automatic reverse charging according to claim 5, wherein: the first coil of the mobile terminal with low electric quantity percentage is connected with the first wireless electric energy receiving circuit, the first wireless electric energy receiving circuit is connected with the charging circuit, and the mobile terminal with low electric quantity percentage receives electric energy output by one end with high electric quantity percentage through the first wireless electric energy receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930804.1A CN113595204B (en) | 2021-08-13 | 2021-08-13 | Automatic reverse charging mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930804.1A CN113595204B (en) | 2021-08-13 | 2021-08-13 | Automatic reverse charging mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113595204A CN113595204A (en) | 2021-11-02 |
| CN113595204B true CN113595204B (en) | 2023-06-02 |
Family
ID=78257708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110930804.1A Active CN113595204B (en) | 2021-08-13 | 2021-08-13 | Automatic reverse charging mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113595204B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742824A (en) * | 2019-02-23 | 2019-05-10 | 华为技术有限公司 | Charging system and electronic equipment |
| CN210111701U (en) * | 2019-08-23 | 2020-02-21 | 东莞市浩力升精密模塑电子有限公司 | Wireless charger capable of adaptively controlling charging coil |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101250266B1 (en) * | 2011-05-31 | 2013-04-03 | 주식회사 아울테크놀로지 | Wireless charger to charge battery of mobile comunication device having different capacity and method thereof |
| CN103259339A (en) * | 2012-02-20 | 2013-08-21 | 联想(北京)有限公司 | Terminal device and method for wireless charging between terminal devices |
| CN105098848B (en) * | 2014-04-28 | 2019-12-20 | 索尼公司 | Wireless charging method and system and mobile terminal |
| CN105226762A (en) * | 2015-10-29 | 2016-01-06 | 宁波力芯科信息科技有限公司 | A kind of wireless charger equipment and wireless charging method |
-
2021
- 2021-08-13 CN CN202110930804.1A patent/CN113595204B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742824A (en) * | 2019-02-23 | 2019-05-10 | 华为技术有限公司 | Charging system and electronic equipment |
| CN210111701U (en) * | 2019-08-23 | 2020-02-21 | 东莞市浩力升精密模塑电子有限公司 | Wireless charger capable of adaptively controlling charging coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113595204A (en) | 2021-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11063635B2 (en) | Device and system for power transmission | |
| US8810072B2 (en) | High-power induction-type power supply system and its data transmission method | |
| US5130634A (en) | Battery charger for a portable wireless telephone set having means for tricklingly charging the battery with an increased current during a stand-by period of the telephone set | |
| CN108390467B (en) | Drive circuit, wireless power transmitting terminal and wireless power supply system using same | |
| US9219380B2 (en) | Bypass control bidirectional wireless charging device | |
| US9281710B2 (en) | Bypass control wireless charging device | |
| CN103036283A (en) | Interval wireless charging communication device and interval wireless charging communication method | |
| US9231417B2 (en) | Rechargeable electrical device | |
| CN103812195A (en) | Wireless charge and discharge circuit, terminal device and wireless charge and discharge method | |
| CN113595204B (en) | Automatic reverse charging mobile terminal | |
| CN113541269B (en) | Wireless charging method for mobile phone | |
| CN108683236A (en) | A kind of mobile terminal OTG charging methods and device | |
| CN109066885B (en) | Charger and charging method of the charger | |
| CN210042140U (en) | Wireless earphone, wireless earphone charging box and wireless earphone charging system | |
| KR101261338B1 (en) | Charger non-contact and contact charger and controlling method thereof | |
| KR101213089B1 (en) | Method for controlling received power in wireless power receiving device and wireless power receiving device thereof | |
| CN113612285B (en) | Automatic forward and reverse charging method | |
| CN113452127B (en) | Wireless charging mobile terminal | |
| CN103715726A (en) | Charging apparatus and method for AC charger | |
| CN114421577A (en) | Charging detection circuit, charging control circuit, charging circuit and charging seat | |
| WO2017134346A1 (en) | Method for maintaining a battery | |
| CN218569860U (en) | Wireless charging device | |
| CN102130486A (en) | Charging device and method thereof | |
| CN201975838U (en) | Wireless charger | |
| CN107204636A (en) | Cell voltage is detected in charging process to adjust the charging method of supply current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |