Charging system, wireless charging terminal, terminal and charging method for electronic equipment

Abstract

The present disclosure proposes a wireless charging terminal, including: a charger, a wireless transmission controller and a transmitting coil; wherein the charger is used to output a first voltage to the wireless transmission controller; the wireless transmission controller is used to boost the first voltage to obtain a second voltage; the second voltage is greater than the first voltage; the transmitting coil is used to output wireless charging capability at the second voltage. When high-power charging is performed, the embodiment of the present disclosure outputs a large voltage through the wireless charging terminal for wireless charging transmission, thereby reducing the operating current of the transmitting coil on the wireless charging terminal, thereby reducing the heat generated by the wireless charging terminal and making the charging system more stable.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery charging, and in particular to a charging system, a wireless charging end, a terminal and a charging method for an electronic device. Background Art

[0002] With the development of the electronics market, electronic products are gradually widely used in human daily life and are an indispensable part of human life. Since electronic products consume electrical energy continuously during use, in order to ensure the power supply of electronic products, the transmitting end (TX end) of the power supply device (charger) can transmit energy to the receiving end (RX end) of the electronic product to charge the electronic product. Summary of the invention

[0003] In one aspect, an embodiment of the present disclosure provides a wireless charging terminal, including: a charger, a wireless transmission controller and a transmitting coil; the charger outputs a first voltage to the wireless transmission controller; the wireless transmission controller performs a voltage boost process on the first voltage to obtain a second voltage; the second voltage is greater than the first voltage. The transmitting coil outputs wireless charging capability at the second voltage.

[0004] On the other hand, an embodiment of the present disclosure proposes a terminal, including: a wireless receiving coil, a wireless receiving controller and a buck processor; the wireless receiving coil is used to receive a charging signal from a wireless charging terminal, and the charging voltage corresponding to the charging signal is higher than a preset voltage; the wireless receiving controller is used to process the charging voltage received by the wireless receiving coil to obtain a third DC voltage; the buck processor is used to buck the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charge the battery of the terminal with the fourth voltage.

[0005] Another aspect of the present disclosure provides a charging system for an electronic device, including: the wireless charging end described in the embodiment of the present disclosure; and the terminal described in the embodiment of the present disclosure.

[0006] Another aspect of the present disclosure provides a charging method, including: generating a first voltage; boosting the first voltage to obtain a second voltage; the second voltage being greater than the first voltage; and outputting wireless charging capability with the second voltage to wirelessly charge a terminal.

[0007] On the other hand, an embodiment of the present disclosure proposes a charging method, including: receiving a charging signal from a wireless charging terminal, the charging voltage corresponding to the charging signal being higher than a preset voltage; processing the charging voltage received by the wireless receiving coil to obtain a third DC voltage; stepping down the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charging the battery of the terminal with the fourth voltage.

[0008] Another aspect of the present disclosure provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause the computer to execute the charging method as described above.

[0009] Another aspect of the present disclosure provides a computer program product, including a computer program, which implements the charging method described above when executed by a processor.

[0010] When high-power charging is performed, the embodiment of the present disclosure outputs a large voltage through the wireless charging terminal to perform wireless charging transmission, thereby reducing the operating current of the transmitting coil on the wireless charging terminal, thereby reducing the heat generated by the wireless charging terminal and making the charging system more stable.

[0011] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0013] Figure 1 A schematic diagram of the structure of a charging system for an electronic device provided in an embodiment of the present disclosure;

[0014] Figure 2 A schematic diagram of the structure of a wireless charging terminal provided by an embodiment of the present disclosure;

[0015] Figure 3 A schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure;

[0016] Figure 4 This is a schematic diagram of voltage transmission between a transmitting end and a receiving end in an embodiment of the present disclosure;

[0017] Figure 5 This is a schematic diagram of voltage transmission between a transmitting end and a receiving end in an embodiment of the present disclosure;

[0018] Figure 6 A schematic diagram of a charging method provided by an embodiment of the present disclosure;

[0019] Figure 7 A schematic flow chart of a charging method provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0021] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0022] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at" or "when" or "in response to determination".

[0023] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and cannot be understood as limiting the present disclosure.

[0024] In the process of studying how to send high-power charging energy while reasonably controlling heat generation in wireless charging, the inventor found that when a power supply device (such as a charger) uses a relatively high power to charge electronic products, the operating temperature will also be relatively high due to the high power, resulting in a relatively large amount of heat generation, which leads to instability of the entire charging or charging system. Based on this, the embodiments of the present disclosure propose a system, a wireless charging terminal, and a terminal that can increase the input voltage for wireless charging in high-power scenarios, but at the same time can reduce path current and path loss, reduce heat generation, and improve charging efficiency.

[0025] The following describes the charging system, wireless charging end, terminal and charging method of the electronic device of the embodiment of the present disclosure with reference to the accompanying drawings. It should be noted that the terminal can be a hardware device with an operating system such as a mobile phone or a tablet computer.

[0026] Figure 1 The figure is a schematic diagram of a charging system structure of an electronic device provided by an embodiment of the present disclosure. Figure 1 As shown, the charging system 100 of the electronic device may include: a wireless charging terminal 110 and a terminal 120 .

[0027] The wireless charging terminal 110 includes a charger, a wireless transmission controller and a transmitting coil. The charger is used to output a first voltage to the wireless transmission controller. The wireless transmission controller is used to boost the first voltage to obtain a second voltage; the second voltage is greater than the first voltage. The transmitting coil is used to output wireless charging capability at the second voltage.

[0028] The terminal 120 is used to step down the charging voltage received from the wireless charging terminal, generate a charging voltage matching the terminal battery, and charge the terminal battery with the charging voltage.

[0029] In one embodiment of the present disclosure, the wireless charging terminal 110 further includes: a first communication module, which communicates with the terminal to determine the target voltage for wireless charging output to the terminal; wherein the wireless transmission controller sets the second voltage as the target voltage; and controls the first voltage to be boosted to obtain the target voltage.

[0030] In one embodiment of the present disclosure, the first communication module is used to determine the target voltage for wireless charging output to the terminal when establishing a connection with the terminal; and / or, during the wireless charging process, communicate with the terminal to determine the target voltage for wireless charging output to the terminal.

[0031] In one embodiment of the present disclosure, the first communication module includes: a first communication unit, used to receive a target voltage sent by the terminal; the target voltage includes a target voltage value or a target voltage level; the target voltage is determined by the terminal according to a current state; or, a second communication unit, used to obtain the terminal state of the terminal and determine the target voltage according to the terminal state, the target voltage includes a target voltage value or a target voltage level.

[0032] In one embodiment of the present disclosure, the wireless transmission controller includes: a boost circuit and / or a wireless transmission control chip.

[0033] In one embodiment of the present disclosure, the wireless charging terminal 110 further includes: a cooling fan; the communication module communicates with the terminal and determines the working state and / or intensity of the cooling fan; the cooling fan works according to the working state and / or intensity.

[0034] In one embodiment of the present disclosure, the wireless transmission controller performs a 1:1.5 boost process on the first voltage to obtain a second voltage of 30V; the transmitting coil outputs a wireless charging capability of 30V. In this embodiment, the 30V charging voltage is innovatively used for wireless charging, which can effectively reduce the charging current on the transmitting coil, thereby reducing the heat dissipation. In addition, since the 30V voltage is used for charging at the wireless charging end, the 30V voltage cannot directly charge the battery. Therefore, in the embodiment of the present disclosure, the terminal is also required to step down the 30V voltage to meet the charging requirements of the battery.

[0035] In one embodiment of the present disclosure, the terminal 120 further includes: a second communication module, communicating with the wireless charging terminal, and used to determine the charging voltage of the wireless charging terminal.

[0036] In one embodiment of the present disclosure, the second communication module is used to determine the charging voltage of the wireless charging end when establishing a connection with the wireless charging end; and / or, during the wireless charging process, communicate with the wireless charging end to determine the charging voltage of the wireless charging end.

[0037] In one embodiment of the present disclosure, the terminal 120 further includes: an exception processing module, which is used to process the exception to generate a fifth voltage when a charging exception occurs, and send the fifth voltage to the wireless charging terminal.

[0038] In one embodiment of the present disclosure, the exception handling module includes: a first exception handling unit, which is used to reduce the charging voltage to obtain a fifth voltage and send the fifth voltage to the wireless charging end if the exception is a high temperature alarm; and / or, a second exception handling unit, which is used to communicate with the wireless charging end to restart charging with a low-level voltage if the exception is a power outage.

[0039] In one embodiment of the present disclosure, the voltage reduction processor selects a corresponding voltage reduction level according to the third voltage, and performs voltage reduction processing on the third voltage according to the voltage reduction level.

[0040] In one embodiment of the present disclosure, the wireless receiving controller includes a step-down circuit and / or a wireless receiving control chip.

[0041] In one embodiment of the present disclosure, the step-down levels of the step-down processor include 6:2, 4:2 and 2:2, respectively, wherein if the third voltage corresponds to a high voltage range, the step-down processor uses a step-down level of 6:2 to step down the third voltage; if the third voltage corresponds to a medium voltage range, the step-down processor uses a step-down level of 4:2 to step down the third voltage; if the third voltage corresponds to a low voltage range, the step-down processor uses a step-down level of 2:2 to step down the third voltage.

[0042] In one embodiment of the present disclosure, the high voltage range is 30V, the medium voltage range is 20V, and the low voltage range is 10V.

[0043] In one embodiment of the present disclosure, the second communication module includes: a third communication unit, used to send the target voltage to the wireless charging end, wherein the target voltage includes a target voltage value or a target voltage level; the target voltage is determined by the terminal according to the current state; or a fourth communication unit, used to send the terminal state of the terminal to the wireless charging end.

[0044] In one embodiment of the present disclosure, the second communication module further includes:

[0045] The fifth communication unit is used to send a fan control instruction to the wireless charging terminal.

[0046] Among them, the wireless charging terminal 110 can be used to increase the output voltage of the wireless charging terminal 110 when performing high-power charging, so that the current on the transmitting coil can be reduced while the charging power remains unchanged, thereby reducing the heat dissipation of the transmitting coil. At the same time, in the embodiment of the present disclosure, since the voltage output by the wireless charging terminal 110 is increased, the voltage of the receiving coil is also increased accordingly, so the current on the receiving coil can also be reduced, thereby effectively reducing the heat dissipation of the receiving coil. Therefore, the embodiment of the present disclosure can effectively reduce heat generation and improve charging efficiency.

[0047] In the embodiment of the present disclosure, the wireless charging terminal 110 wirelessly charges the terminal 120. During high-power charging, the wireless charging terminal 110 increases the charging voltage, thereby reducing the working current of the coil and further reducing the heat generation.

[0048] In one embodiment of the present disclosure, the terminal 120 includes a wireless receiving coil, a wireless receiving controller and a step-down processor. The wireless receiving coil is used to receive a charging signal from a wireless charging terminal, and the charging voltage corresponding to the charging signal is higher than a preset voltage. The wireless receiving controller is used to process the charging voltage received by the wireless receiving coil to obtain a third DC voltage. The step-down processor is used to step-down the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charge the battery of the terminal through the fourth voltage.

[0049] In one embodiment of the present disclosure, wireless communication can be performed between the wireless charging terminal 110 and the terminal 120, and the terminal 120 can send the terminal status to the wireless charging terminal 110, for example, the current battery power is 5%, or the current charging power is 10W, etc. It should be noted that the terminal status may include at least one of the following states: remaining power, temperature, charging power, etc.

[0050] As an example, after receiving the terminal status sent by the terminal 120, the wireless charging terminal 110 can determine the target voltage for wireless charging to be output to the terminal according to the terminal status, and output the wireless charging capability to the terminal at the target voltage. It should be noted that the target voltage includes a target voltage value or a target voltage level.

[0051] For example, if the wireless charging end receives a current power level of 5%, it can determine to output wireless charging capability to the terminal at a high voltage level. For another example, if the wireless charging end receives a current power level of 50%, it can determine to output wireless charging capability at a voltage of 20V.

[0052] In the embodiment of the present disclosure, after the wireless charging terminal 110 determines the target voltage for wireless charging to be output to the terminal, the charger outputs a first voltage to the wireless transmission controller; the wireless transmission controller performs a voltage boost process on the first voltage to obtain a second voltage; the second voltage is greater than the first voltage; the transmitting coil outputs the wireless charging capability at the second voltage. It should be noted that the wireless charging terminal may include but is not limited to a charger, a wireless transmission controller and a transmitting coil.

[0053] In order to obtain a charging voltage that matches the terminal battery, in an embodiment of the present disclosure, after the terminal 120 receives the target voltage sent by the wireless charging terminal, it can process the target voltage to generate a charging voltage that matches the terminal battery, and charge the terminal battery with the charging voltage.

[0054] As an example, after the terminal 120 receives the target voltage sent by the wireless charging end, the terminal 120 can process the target voltage to obtain a DC voltage; then step down the DC voltage to obtain a charging voltage that matches the terminal battery, and charge the terminal battery with the charging voltage that matches the terminal battery.

[0055] In the embodiment of the present disclosure, the wireless charging system 100 also includes a wired charging terminal. The wired charging terminal includes a charging component and a wired charging controller, and the wired charging controller is connected to a step-down processor. The charging component generates a charging voltage. The wired charging controller processes the charging voltage generated by the charging component to obtain a wired charging voltage for wired charging of the terminal, and performs wired charging of the terminal after being processed by the step-down processor.

[0056] As a possible implementation of the embodiment of the present disclosure, Figure 2 As shown, Figure 2 The wireless charging terminal 210 is a schematic diagram of a structure of a wireless charging terminal provided by an embodiment of the present disclosure. The wireless charging terminal 210 includes: a charger 211, a wireless transmission controller 212, and a transmitting coil 213. The wireless charging terminal 210 can be connected to Figure 1 The wireless charging terminal 110 of the illustrated embodiment has the same function and structure.

[0057] The charger 211 outputs a first voltage to the wireless transmission controller 212; the wireless transmission controller 212 performs a voltage-boosting process on the first voltage to obtain a second voltage; the second voltage is greater than the first voltage; and the transmitting coil 213 outputs wireless charging capability at the second voltage.

[0058] As a possible implementation manner of the embodiment of the present disclosure, the wireless charging terminal further includes: a first communication module.

[0059] The first communication module communicates with the terminal to determine the target voltage for wireless charging output to the terminal; the wireless transmission controller 212 sets the second voltage as the target voltage; and controls the first voltage to be boosted to obtain the target voltage.

[0060] That is to say, when the wireless charging end 210 communicates with the terminal, the first communication module can obtain the terminal status sent by the terminal. After obtaining the terminal status, the charger 211 outputs a first voltage to the wireless transmission controller 212; the wireless transmission controller 212 boosts the first voltage to obtain a second voltage; the second voltage is greater than the first voltage; the wireless transmission controller sets the second voltage as the target voltage; and controls the first voltage to be boosted to obtain the target voltage, and the transmitting coil 213 outputs the wireless charging capability at the target voltage.

[0061] As a possible implementation method of an embodiment of the present disclosure, the first communication module determines the target voltage for wireless charging output to the terminal when establishing a connection with the terminal; and / or, during the wireless charging process, communicates with the terminal to determine the target voltage for wireless charging output to the terminal.

[0062] That is to say, as an example, when the wireless charging terminal is connected to the terminal through the first communication module, it can determine the target voltage of wireless charging output to the terminal; as another example, during the wireless charging process, when the wireless charging terminal communicates with the terminal through the first communication module, it can determine the target voltage of wireless charging output to the terminal. For example, during the wireless charging process, when the wireless charging terminal communicates with the terminal through the first communication module, it can obtain the battery power of the terminal, thereby determining the target voltage of wireless charging output to the terminal.

[0063] As a possible implementation manner of the embodiment of the present disclosure, the first communication module includes: a first communication unit and a second communication unit.

[0064] Among them, the first communication unit receives the target voltage sent by the terminal; the target voltage includes a target voltage value or a target voltage level; the second communication unit obtains the terminal status and determines the target voltage according to the terminal status, and the target voltage includes a target voltage value or a target voltage level.

[0065] That is, the first communication module communicates with the terminal and can determine the target voltage for wireless charging to be output to the terminal.

[0066] As an example, the first communication unit in the first communication module of the wireless charging terminal can receive a target voltage sent by the terminal, and according to the target voltage, a target voltage for wireless charging output to the terminal can be determined.

[0067] As another example, the second communication unit in the first communication module of the wireless charging terminal can receive the terminal status sent by the terminal, and determine the target voltage according to the terminal status, where the target voltage includes a target voltage value or a target voltage level.

[0068] It should be noted that the target voltage level may include but is not limited to a high voltage level, a medium voltage level, a low voltage level, etc. The terminal state may include at least one of the following states: remaining power, temperature, charging power, etc.

[0069] For example, the second communication unit receives the terminal status sent by the terminal that the current remaining power is 5%, and can determine that the target voltage level is a high voltage level, and charge the terminal at the high voltage level. As a possible implementation of the embodiment of the present disclosure, the wireless transmission controller includes: a boost circuit; or a wireless transmission chip.

[0070] In the disclosed embodiment, the boost circuit in the wireless transmission controller can boost the first voltage to obtain a second voltage. As an example, the first voltage is boosted by 1:1.5 to obtain a second voltage of 30V; the transmitting coil outputs wireless charging capability at 30V. For example, taking the first voltage as 20V as an example, the first voltage is boosted by 1:1.5 to obtain a second voltage of 30V, and the transmitting coil outputs wireless charging capability at 30V.

[0071] In order to further reduce the heat generated by the charging system and ensure the stability of the charging system, the wireless charging end also includes: a cooling fan.

[0072] In the embodiment of the present disclosure, the first communication module communicates with the terminal to determine the working state and / or intensity of the cooling fan; the cooling fan works according to the working state and / or intensity.

[0073] That is to say, when the first communication module of the wireless charging terminal communicates with the terminal, the working state and strength of the cooling fan can be determined according to the target voltage value or target voltage level. For example, when the first communication module of the wireless charging terminal communicates with the terminal, it is determined to charge the terminal at a high voltage level. In order to prevent the charging system from generating too much heat, the strength of the fan can be increased to reduce the heat generated by the charging system. For example, the speed of the fan can be increased to reduce the heat generated by the charging system.

[0074] As a possible implementation of the embodiment of the present disclosure, Figure 3 As shown, Figure 3 The terminal 310 is a schematic diagram of a structure of a terminal provided by an embodiment of the present disclosure. The terminal 310 includes: a wireless receiving coil 311, a wireless receiving controller 312 and a voltage reduction processor 313. The terminal 310 can be connected to Figure 1 The terminals 120 of the illustrated embodiments have the same function and structure.

[0075] Among them, the wireless receiving coil 311 is used to receive a charging signal from the wireless charging end, and the charging voltage corresponding to the charging signal is higher than the preset voltage; the wireless receiving controller 312 is used to process the charging voltage received by the wireless receiving coil to obtain a third DC voltage; the step-down processor 313 is used to step-down the third voltage to obtain a fourth voltage within the charging range acceptable to the terminal, and charge the battery of the terminal through the fourth voltage.

[0076] As a possible implementation of the embodiment of the present application, the terminal 310 further includes: a second communication module.

[0077] The second communication module communicates with the wireless charging terminal to determine the charging voltage of the wireless charging terminal.

[0078] That is to say, when the terminal 310 communicates with the wireless charging end, the terminal status can be sent to the wireless charging end through the second communication module in the terminal 310. After receiving the terminal status sent by the terminal, the wireless charging end adjusts the transmission voltage of the wireless charging end to the target voltage and sends a charging signal to the terminal. The wireless receiving coil 311 in the terminal is used to receive the charging signal from the wireless charging end, and the charging voltage can be correspondingly calculated according to the charging signal. The wireless receiving controller 312 is used to process the charging voltage received by the wireless receiving coil to obtain a third DC voltage; then, in order to reduce the charging temperature of the charging system, when the third voltage belongs to the high voltage range (such as 25V-35V), the step-down processor 313 can be used to step down the third voltage to obtain a fourth voltage within the charging range that can be accepted by the terminal, and charge the battery of the terminal through the fourth voltage.

[0079] As one embodiment of the present disclosure, the second communication module is used to determine the charging voltage of the wireless charging end when establishing a connection with the wireless charging end; and / or, during the wireless charging process, communicate with the wireless charging end to determine the charging voltage of the wireless charging end.

[0080] That is to say, as an example, when the second communication module in the terminal establishes a connection with the wireless charging end, the charging voltage of the wireless charging end can be determined; as another example, during the wireless charging process, the second communication module in the terminal communicates with the wireless charging end to determine the charging voltage of the wireless charging end.

[0081] In the embodiment of the present disclosure, when a charging abnormality occurs in the terminal, the wireless receiving controller processes the abnormality to generate a fifth voltage, and sends the fifth voltage to the wireless charging terminal.

[0082] As an example, if the abnormality is a high temperature alarm, the wireless receiving controller reduces the charging voltage; as another example, if the abnormality is a power outage, the wireless receiving controller communicates with the wireless charging terminal through the second communication module and restarts charging with a low-level voltage.

[0083] In the embodiment of the present disclosure, the terminal further includes: an exception handling module.

[0084] The abnormality processing module is used to process the abnormality to generate a fifth voltage when a charging abnormality occurs, and send the fifth voltage to the wireless charging terminal.

[0085] As an example, the exception handling module includes: a first exception handling unit and a second exception handling unit.

[0086] Wherein, the first abnormality processing unit is used for reducing the charging voltage to obtain a fifth voltage if the abnormality is a high temperature alarm, and sending the fifth voltage to the wireless charging terminal; and / or

[0087] The second exception processing unit is used for communicating with the wireless charging terminal to restart charging with a low-level voltage if the exception is power failure.

[0088] As a possible implementation of the embodiment of the present disclosure, the terminal 310 further includes: a wired charging interface and a wired charging controller.

[0089] In order to obtain a voltage within a charging range acceptable to the terminal, in an embodiment of the present disclosure, a wired charging controller is used to control the charging interface to be connected to a step-down processor when a charger is connected to the wired charging interface.

[0090] In the disclosed embodiment, the step-down processor is used to step-down the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charge the battery of the terminal through the fourth voltage. As an example, the step-down processor can select a corresponding step-down level according to the third voltage, and step-down the third voltage according to the step-down level. It should be noted that the wireless receiving controller includes a step-down circuit and / or a wireless receiving control chip.

[0091] For example, multiple step-down levels can be pre-set, such as 6:2, 4:2, and 2:2. If the third voltage corresponds to a high voltage range, such as a high voltage range of 25V-35V, the step-down processor uses a step-down level of 6:2 to step down the third voltage; if the third voltage corresponds to a medium voltage range, such as a medium voltage range of 15V-25V, the step-down processor uses a step-down level of 4:2 to step down the third voltage; if the third voltage corresponds to a low voltage range, such as a low voltage range of 5V-15V, the step-down processor uses a step-down level of 2:2 to step down the third voltage.

[0092] In the embodiment of the present disclosure, the second communication module includes: a third communication unit and a fourth communication unit.

[0093] Among them, the third communication unit is used to send the target voltage to the wireless charging end, wherein the target voltage includes a target voltage value or a target voltage level; the target voltage is determined by the terminal according to the current state; the fourth communication unit is used to send the terminal state of the terminal to the wireless charging end.

[0094] That is to say, when the terminal communicates with the wireless charging end, the terminal can determine to send the target voltage to the wireless charging end according to the current state. The third communication unit can be used to send the target voltage to the wireless charging end. The fourth communication unit can be used to send the terminal state of the terminal to the wireless charging end.

[0095] As a possible implementation manner of the embodiment of the present disclosure, the second communication module further includes: a fifth communication unit, configured to send a fan control instruction to the wireless charging terminal.

[0096] That is to say, in order to prevent the fan from being too fast and causing excessive noise, thus affecting the user's charging experience, the fifth communication unit can be used to send fan control instructions to the wireless charging end to control the fan speed, reduce noise, and improve user experience.

[0097] In order to make those skilled in the art understand the present disclosure more clearly, examples are now given to illustrate.

[0098] For example, such as Figure 4 As shown in the figure, the wireless charging path: at the TX end, through the 5-20V charger input, the voltage is boosted to generate a voltage close to 5-30V (up to approximately 6 times the battery voltage), and then transmitted to the RX end in a wireless form. The wireless controller converts the 5-30V AC voltage into a stable DC 5-30V voltage, which is then converted into a 5-10V voltage through a 6:2 / 4:2 / 2:2 charge pump, and then converted into a 2-5V voltage (close to the battery voltage) through the main power supply and 2:1 charge pump controller to charge the battery.

[0099] Wired charging path: The charger converts 220V AC power into a maximum DC voltage of 11V, 6.1A or a voltage of 5-20V. After passing through the wired switch controller, it enters the main power supply and 2:1 charge pump controller to convert it into a voltage of 2~5V (close to the battery voltage) to charge the battery.

[0100] Among them, in the wireless charging path, the TX end is equivalent to the wireless charging end of the embodiment of the present disclosure, and the RX end is equivalent to the terminal of the embodiment of the present disclosure. Figure 4 The 6:2 charge controller, the main control power supply and the 2:1 charge pump controller are equivalent to the voltage reduction processing module in the terminal of the embodiment of the present disclosure.

[0101] For example, Figure 5As shown, the wireless charging path: at the TX end, through the 5-20V charger input, the voltage is boosted to generate a voltage close to 5-30V (up to approximately 6 times the battery voltage), and then transmitted to the RX end in a wireless form through the coil. The customized RX chip (equivalent to the wireless controller) converts the 5-30v AC voltage into a stable DC 5-30V voltage, and then converts it into a 5-10v voltage through a 6:2 / 4:2 / 2:2 charge pump, and then through PMIC and 2:1 charge pump to convert it into 2~5V voltage (close to the battery voltage) to charge the battery. Among them, in the wireless charging path, the TX end is equivalent to the wireless charging end of the embodiment of the present disclosure, the RX end is equivalent to the terminal of the embodiment of the present disclosure, the 6:2 / 4:2 / 2:2 charge pump and the PMIC and 2:1 charge pump are equivalent to the buck processor of the embodiment of the present disclosure, and the customized RX chip is equivalent to the wireless receiving controller in the terminal of the embodiment of the present disclosure.

[0102] With the above Figure 1 Corresponding to the charging system of the electronic device provided in the embodiment, the present disclosure also provides a charging method, such as Figure 6 As shown, Figure 6 A charging method is provided in the embodiment of the present disclosure. It should be noted that the charging method provided in the embodiment of the present disclosure is different from the above-mentioned Figure 1 The charging system of the electronic device provided in the embodiment corresponds to the embodiment, so the implementation of the charging system of the electronic device is also applicable to the charging method provided in the embodiment of the present disclosure. The execution subject of the charging method can be a wireless charging terminal, Figure 6 The charging method of the illustrated embodiment comprises the following steps:

[0103] Step 601: Generate a first voltage.

[0104] Step 602, boosting the first voltage to obtain a second voltage; the second voltage is greater than the first voltage.

[0105] Step 603: outputting wireless charging capability with a second voltage to wirelessly charge the terminal.

[0106] In order to implement the above embodiment, the present disclosure also proposes another charging method, such as Figure 7 As shown, Figure 7 A charging method according to an embodiment of the present application is provided. The charging method is performed by a terminal. Figure 7 The charging method shown may include the following steps:

[0107] Step 701: receiving a charging signal from a wireless charging terminal, wherein a charging voltage corresponding to the charging signal is higher than a preset voltage.

[0108] Step 702: Process the charging voltage received by the wireless receiving coil to obtain a third DC voltage.

[0109] Step 703: step down the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charge the battery of the terminal with the fourth voltage.

[0110] In the embodiments of the present disclosure, the additional technical features of the above method can refer to the above Figure 1-5 Features of the wireless charging end and terminal mentioned in the embodiments.

[0111] When high-power charging is performed, the embodiment of the present disclosure outputs a large voltage through the wireless charging terminal to perform wireless charging transmission, thereby reducing the operating current of the transmitting coil on the wireless charging terminal, thereby reducing the heat generated by the wireless charging terminal and making the charging system more stable.

[0112] In order to implement the above embodiments, the present disclosure also proposes a non-transitory computer-readable storage medium storing computer instructions.

[0113] The present disclosure provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause the computer to execute Figure 6 Or the charging method of the embodiment shown in 7.

[0114] In order to implement the above embodiments, the present disclosure also proposes a computer program product.

[0115] The computer program product provided by the embodiment of the present disclosure includes a computer program, which implements Figure 6 Or the charging method of the embodiment shown in 7.

[0116] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0117] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wireless charging terminal, comprising: Charger, wireless transmission controller and transmitting coil; Wherein, the charger is used to output a first voltage to the wireless transmission controller; The wireless transmission controller is used to perform voltage boost processing on the first voltage to obtain a second voltage; the second voltage is greater than the first voltage; The transmitting coil is used to output wireless charging capability at the second voltage; The wireless charging terminal further includes: a first communication module, the first communication module communicates with the terminal to determine a target voltage for wireless charging output to the terminal; The wireless transmission controller sets the second voltage as the target voltage; and controls the first voltage to be boosted to obtain the target voltage, wherein the target voltage is at most 6 times the battery voltage; The first communication module is used to determine the target voltage for wireless charging output to the terminal when establishing a connection with the terminal; and, during the wireless charging process, communicate with the terminal to determine the target voltage for wireless charging output to the terminal; The wireless transmission controller performs 1 on the first voltage: The voltage is increased by 1.5 to obtain a second voltage of 30V; the transmitting coil outputs a wireless charging capability of 30V; The wireless charging terminal is also used to restart charging with a low-level voltage when the first communication module receives a message sent by the terminal when a power outage is detected.

2. The wireless charging terminal according to claim 1, characterized in that: The first communication module comprises: A first communication unit is configured to receive a target voltage sent by the terminal; the target voltage includes a target voltage value or a target voltage level; the target voltage is determined by the terminal according to a current state; or The second communication unit is used to obtain the terminal state of the terminal and determine the target voltage according to the terminal state, where the target voltage includes a target voltage value or a target voltage level.

3. The wireless charging terminal according to claim 1, characterized in that: The wireless transmission controller comprises: Boost circuit and / or wireless transmission control chip.

4. The wireless charging terminal according to claim 1, characterized in that: Also includes: Cooling fan; The communication module communicates with the terminal and determines the working state and / or intensity of the cooling fan; The cooling fan operates according to the operating state and / or intensity.

5. A terminal, characterized in that: include: Wireless receiving coil, wireless receiving controller and step-down processor; The wireless receiving coil is used to receive a charging signal from a wireless charging terminal, and the charging voltage corresponding to the charging signal is higher than a preset voltage; The wireless receiving controller is used to process the charging voltage received by the wireless receiving coil to obtain a third DC voltage; The voltage reduction processor is used to reduce the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charge the battery of the terminal with the fourth voltage; The terminal further includes: A second communication module communicates with the wireless charging terminal to determine a charging voltage of the wireless charging terminal, wherein the charging voltage of the wireless charging terminal is at most 6 times the battery voltage; The second communication module is used to determine the charging voltage of the wireless charging terminal when establishing a connection with the wireless charging terminal; and, during the wireless charging process, communicate with the wireless charging terminal to determine the charging voltage of the wireless charging terminal; The step-down level of the step-down processor includes 6:2, wherein if the third voltage corresponds to a high voltage range, the step-down processor uses a step-down level of 6:2 to step down the third voltage, and the high voltage range is 30V; The terminal further includes: an exception handling module, which is used to handle the exception when a charging exception occurs; the exception handling module includes: The second exception processing unit is configured to communicate with the wireless charging terminal to restart charging with a low-level voltage if the exception is a power outage.

6. The terminal according to claim 5, characterized in that: in, The exception handling module further includes: The first abnormality processing unit is used for reducing the charging voltage to obtain a fifth voltage if the abnormality is a high temperature alarm, and sending the fifth voltage to the wireless charging terminal.

7. The terminal according to claim 5, characterized in that: The voltage reduction processor selects a corresponding voltage reduction level according to the third voltage, and performs voltage reduction processing on the third voltage according to the voltage reduction level.

8. The terminal according to claim 5, characterized in that: The wireless receiving controller includes a step-down circuit and / or a wireless receiving control chip.

9. The terminal according to claim 5, characterized in that: The step-down levels of the step-down processor also include 4:2 and 2:2, wherein: If the third voltage corresponds to a medium voltage range, the step-down processor steps down the third voltage using a step-down level of 4:2; If the third voltage corresponds to a low voltage range, the step-down processor steps down the third voltage using a step-down level of 2:

2.

10. The terminal according to claim 9, characterized in that: The medium voltage range is 20v, and the low voltage range is 10v.

11. The terminal according to claim 5, characterized in that: The second communication module includes: A third communication unit is used to send a target voltage to the wireless charging terminal, wherein the target voltage includes a target voltage value or a target voltage level; the target voltage is determined by the terminal according to a current state; or The fourth communication unit is used to send the terminal status of the terminal to the wireless charging terminal.

12. The terminal according to claim 11, characterized in that: The second communication module also includes: The fifth communication unit is used to send a fan control instruction to the wireless charging terminal.

13. A wireless charging system, characterized in that: include: The wireless charging terminal as claimed in any one of claims 1 to 4; as well as A terminal as claimed in any one of claims 5 to 12.

14. The wireless charging system according to claim 13, characterized in that: Also includes a wired charging port: The wired charging end includes: a charging component and a wired charging controller; the wired charging controller is connected to the step-down processor; The charging component generates a charging voltage; the wired charging controller processes the charging voltage generated by the charging component to obtain a wired charging voltage for wired charging of the terminal, and performs wired charging of the terminal after being processed by the step-down processor.

15. A charging method, characterized in that: include: generating a first voltage; performing a voltage-boosting process on the first voltage to obtain a second voltage; The second voltage is greater than the first voltage; Outputting wireless charging capability with the second voltage to wirelessly charge the terminal; The method further comprises: Communicating with the terminal and determining a target voltage for wireless charging output to the terminal when establishing a connection with the terminal; and, during the wireless charging process, communicating with the terminal and determining a target voltage for wireless charging output to the terminal; wherein, the second voltage is set as the target voltage; and the first voltage is controlled to be boosted to obtain the target voltage, wherein the target voltage is at most 6 times the battery voltage; The step of boosting the first voltage to obtain a second voltage includes: Performing a 1:1.5 boost process on the first voltage to obtain a second voltage of 30V; outputting a wireless charging capability at 30V to wirelessly charge the terminal; The method further comprises: Upon receiving a message sent by the terminal when a power outage is detected, charging is restarted at a low level voltage.

16. A charging method, characterized in that: include: Receive a charging signal from the wireless charging terminal, wherein the charging voltage corresponding to the charging signal is higher than a preset voltage; Processing the charging voltage received by the wireless receiving coil to obtain a third DC voltage; Stepping down the third voltage to obtain a fourth voltage within a charging range acceptable to the terminal, and charging a battery of the terminal with the fourth voltage; The method further comprises: Communicating with the wireless charging terminal to determine the charging voltage of the wireless charging terminal when establishing a connection with the wireless charging terminal; and, during the wireless charging process, communicating with the wireless charging terminal to determine the charging voltage of the wireless charging terminal; the charging voltage of the wireless charging terminal is up to 6 times the battery voltage; The step of reducing the third voltage includes: The voltage reduction level includes 6:2, wherein if the third voltage corresponds to a high voltage range, the third voltage is reduced by using a voltage reduction level of 6:2, and the high voltage range is 30V; The method further comprises: When a charging abnormality occurs, the abnormality is processed, and if the abnormality is a power outage, the wireless charging terminal is communicated with to restart charging with a low-level voltage.

17. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to claim 15 or 16.

18. A computer program product, characterized in that A computer program is included which, when executed by a processor, implements the method according to claim 15 or 16.

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