CN116418073A - Charging device and charging method - Google Patents

Abstract

The present disclosure relates to a charging apparatus and a charging method. The charging device includes: the conversion module is configured to adjust the first electrical parameter and the second electrical parameter of the received initial electrical signal under the condition that the charging equipment is connected to a power supply, so as to obtain a target electrical signal; and the electric signal output module is connected with the conversion module and is configured to transmit the target electric signal to the power receiving equipment under the condition that the output end of the electric signal output module is connected with the power receiving equipment. According to the power receiving device, the transformation module is arranged, the first electric parameter and the second electric parameter are adjusted simultaneously, the target electric signal is obtained, the adjusted electric parameters are balanced, and the problem that the power receiving device heats due to the fact that only one electric parameter is increased and then one electric parameter is overlarge is caused is solved.

Description

Charging device and charging method

Technical Field

The disclosure relates to the field of electronic equipment charging, in particular to a charging device and a charging method.

Background

Currently, the rapid charging technology is a popular trend of electronic devices. The charging efficiency is improved through the quick charging technology, and more electric quantity is provided for the battery in a shorter time. In the related art, in order to further improve the charging efficiency, the charging power of the fast charging technology is larger and larger, and under the condition of the overlarge charging power, the powered device is easy to generate heat, so that the powered device is faulty, and the use experience of a user is affected.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a charging apparatus and a charging method.

According to a first aspect of embodiments of the present disclosure, there is provided a charging apparatus including:

the conversion module is configured to adjust the first electrical parameter and the second electrical parameter of the received initial electrical signal under the condition that the charging equipment is connected to a power supply, so as to obtain a target electrical signal;

and the electric signal output module is connected with the conversion module and is configured to transmit the target electric signal to the power receiving equipment under the condition that the output end of the electric signal output module is connected with the power receiving equipment.

In some embodiments, the charging device comprises:

the conversion module is integrated at the input end of the data line;

the electric signal output module is positioned at the output end of the data line and is connected with the conversion module through the power line of the data line.

In some embodiments, the charging device comprises:

the conversion module is integrated at the output end of the adapter and is configured to receive the initial electric signal under the condition that the input end of the adapter is connected to the power supply.

In some embodiments, the transformation module is configured to:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In some embodiments, the transformation module is configured to:

acquiring the temperature of the charging equipment in the process of adjusting the first electric parameter and the second electric parameter according to the preset adjustment ratio;

and updating the preset adjustment ratio based on the temperature of the charging equipment.

In some embodiments, the transformation module comprises: at least one charge pump, each of said charge pumps being connected in parallel;

at least one of the charge pumps is configured to adjust a first electrical parameter and a second electrical parameter of the initial electrical signal if the charging device is connected to a power source.

In some embodiments, the charging device further comprises:

and the control module is configured to close the first charge pump if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value in the process of adjusting the first electric parameter and the second electric parameter through the first charge pump in at least one charge pump.

In some embodiments, the control module is configured to determine a second charge pump from at least one of the charge pumps after turning off the first charge pump, and adjust the first electrical parameter and the second electrical parameter with the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

According to a second aspect of embodiments of the present disclosure, there is provided a charging method applied to the charging apparatus of the first aspect, including:

adjusting a first electrical parameter and a second electrical parameter of an initial electrical signal from a power supply to obtain a target electrical signal;

the target electrical signal is transmitted to a powered device to charge the powered device with the target electrical signal.

In some embodiments, the adjusting the first electrical parameter and the second electrical parameter of the initial electrical signal from the power source to obtain the target electrical signal includes:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In some embodiments, the method further comprises:

acquiring the temperature of the charging equipment in the process of adjusting according to the preset adjusting ratio;

and updating the preset adjustment ratio based on the temperature of the charging equipment.

In some embodiments, the charging device comprises at least one charge pump; the method further comprises the steps of:

and in the process of adjusting the first electric parameter and the second electric parameter through a first charge pump in at least one charge pump, if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value, the first charge pump is turned off.

In some embodiments, the method further comprises:

determining a second charge pump from at least one of the charge pumps after turning off the first charge pump, and adjusting the first electrical parameter and the second electrical parameter by the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

in the embodiment of the disclosure, the first electrical parameter and the second electrical parameter of the initial electrical signal are adjusted by using the conversion module to obtain the target electrical signal, and then the target electrical signal is transmitted to the power receiving device by using the electrical signal output module connected with the conversion module. Compared with the prior art, the charging power is increased by only adjusting one electric parameter of the electric signal, the power conversion module is arranged, the first electric parameter and the second electric parameter are adjusted simultaneously to obtain the target electric signal, the adjusted electric parameters can be balanced, and the problem that heating of the power receiving equipment occurs due to the fact that only one electric parameter is increased and then one electric parameter is overlarge is caused is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is an apparatus block diagram of a charging device according to an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a charging device according to an exemplary embodiment of the present disclosure.

Fig. 3 is a schematic structural view of an adapter according to an exemplary embodiment of the present disclosure.

Fig. 4 is a flowchart illustrating a charging method according to an exemplary embodiment of the present disclosure.

Fig. 5 is a schematic diagram illustrating one charging according to an exemplary embodiment of the present disclosure.

Fig. 6 is a second charge schematic diagram illustrating an example embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

Fig. 1 is a block diagram of an apparatus of a charging device according to an exemplary embodiment of the present disclosure, and as shown in fig. 1, the charging device includes:

the conversion module 101 is configured to adjust the first electrical parameter and the second electrical parameter of the received initial electrical signal to obtain a target electrical signal under the condition that the charging equipment is connected to a power supply;

and the electric signal output module 102 is connected with the conversion module and is configured to transmit the target electric signal to the power receiving equipment when the output end of the electric signal output module is connected with the power receiving equipment.

In the embodiments of the present disclosure, a power supply may refer to a device that converts other forms of energy into electrical energy and provides the electrical energy to an electronic device, and may also be referred to as a power supply. The electronic device may include: a terminal device, e.g. a mobile terminal or a fixed terminal. Wherein, the mobile terminal may include: the mobile phone, the tablet computer, the notebook computer or the wearable device and other devices can also comprise intelligent home devices, such as an intelligent sound box and the like. The fixed terminal may include: desktop computers or smart televisions, etc. A charging apparatus may be understood as an apparatus capable of performing conversion processing on an electric signal for performing charging processing on a power receiving apparatus (or a battery, a cell, or the like), such as an adapter, a charger, or the like. For example: an electrical signal (e.g., 1000 volts) transmitted from a power source (or power supply plant) can be converted into an electrical signal (e.g., 20 volts) that can meet a standard range that can be tolerated by powered devices, and so forth. The power receiving apparatus may refer to an apparatus that uses electric power and has a battery module, and the power receiving apparatus may charge by receiving an electric signal from a charging apparatus. For example: cell phone, intelligent audio amplifier, robot, electric motor car, electric automobile etc..

In one possible embodiment, the charging device may include only a conversion module and an electrical signal output module, or may include a plurality of conversion modules, electrical signal output modules, and other modules, such as an adapter, a data line, or a control module. The power receiving apparatus may include only a single battery, or the power receiving apparatus may be without a battery, or the power receiving apparatus may be understood as a load circuit or the like, which is not particularly limited in this disclosure. Of course, the charging device may also include an electronic device (e.g., a terminal device) having a charging function, as long as the charging device is a device capable of realizing the charging function, and is not particularly limited herein.

In the embodiment of the present disclosure, the charging device may include: a conversion module and an electrical signal output module. One end of the conversion module can be connected with a power supply, the other end of the conversion module can be connected with one end of the electric signal output module, and the other end of the electric signal output module can be connected with powered equipment. For example: one end of the conversion module can be connected with a socket of a power supply in a plug mode; the other end of the conversion module can be connected with one end of the electric signal output module in a power line mode; the other end of the electric signal output module can be connected with the power receiving equipment through a data line interface (such as a Micro-usb interface, a Lightning interface, a Type-c interface and the like).

The transformation module is configured to adjust the first electrical parameter and the second electrical parameter of the received initial electrical signal to obtain the target electrical signal under the condition that the charging device is connected to the power supply. The electric signal output module is configured to transmit the target electric signal to the power receiving apparatus with an output end of the electric signal output module connected to the power receiving apparatus. For example: the power supply outputs an initial electric signal, wherein the first electric parameter is voltage, the voltage is 20V, the second electric parameter is current, the current is 10A, a target electric signal with the first electric parameter of 40V and the second electric parameter of 5A is obtained after being adjusted by the conversion module, and then the target electric signal is transmitted to the power receiving equipment through the electric signal output module to charge a battery (or a battery core) of the power receiving equipment or the power receiving equipment operates according to the target electric signal.

In the embodiment of the disclosure, the first electrical parameter and the second electrical parameter of the initial electrical signal are adjusted by using the conversion module to obtain the target electrical signal, and then the target electrical signal is transmitted to the power receiving device by using the signal output module connected with the conversion module. Compared with the prior art, the charging power is increased by only adjusting one electric parameter of the electric signal, the power conversion module is arranged, the first electric parameter and the second electric parameter are adjusted simultaneously to obtain the target electric signal, the adjusted electric parameters can be balanced, and the problem that heating of the power receiving equipment occurs due to the fact that only one electric parameter is increased and then one electric parameter is overlarge is caused is reduced.

Fig. 2 is a schematic structural view of a charging device according to an exemplary embodiment of the present disclosure, and in combination with fig. 1 and 2, the charging device includes:

a data line 200, wherein the conversion module 101 is integrated at an input end 201 of the data line 200;

the electric signal output module 102 is located at the output end 202 of the data line 200 and is connected to the conversion module 101 through the power line 203 of the data line 200.

In an embodiment of the disclosure, the charging device may further include a data line, wherein the conversion module is integrated at an input end of the data line. The electric signal output module is positioned at the output end of the data line and is connected with the conversion module through a power line of the data line. The conversion module can be integrated at the interface of the input end, and can also be integrated at a power line part and the like outside the interface of the input end. The data line may include a power line, which may be understood as a wire for charging between the charging device and the power receiving device, a signal line, which may be understood as a wire for signal, data transmission between the charging device and the power receiving device, and the like.

In the embodiment of the disclosure, the data line is provided, the conversion module is integrated at the input end of the data line, the electric signal output module is located at the output end of the data line, and the electric signal output module is connected with the conversion module through the power line of the data line, so that the first electric parameter and the second electric parameter of the target electric signal in the input power receiving equipment can be simply and accurately adjusted. Compared with the prior art, the charging equipment in the present disclosure is not only suitable for the power receiving equipment with larger charging power requirement, but also suitable for the current power receiving equipment with smaller power requirement, and does not need a connector with customization, so that the cost is reduced.

Fig. 3 is a schematic structural view of an adapter according to an exemplary embodiment of the present disclosure, and the charging device, as shown in conjunction with fig. 1 and 3, includes:

an adapter 300, said conversion module 101 being integrated at an output 301 of said adapter 300 and being configured to receive said initial electrical signal in case an input 302 of said adapter 300 is connected to said power supply.

In an embodiment of the disclosure, the charging device may include an adapter (may also be referred to as a charging head, etc.), and the conversion module is integrated at an output end of the adapter and configured to receive the initial electrical signal when an input end of the adapter is connected to the power supply. An adapter is understood to mean an interface converter, which may be a stand-alone hardware interface device, allowing a hardware or electronic interface to be connected to other hardware or electronic interfaces, or an information interface. Such as: power adapter, tripod base adapter component, universal serial bus (Universal Serial Bus, USB) and serial port adapter device, etc. In one possible embodiment, the electrical signal output module may be electrically connected to the adapter, or may be connected to the adapter by an electrical wire, or the like.

In the embodiment of the disclosure, by arranging the adapter, the conversion module is integrated at the output end of the adapter and is configured to receive the initial electrical signal under the condition that the input end of the adapter is connected to the power supply, so that the first electrical parameter and the second electrical parameter of the target electrical signal input into the powered device can be simply and accurately adjusted.

In some embodiments, the transformation module is configured to:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In the embodiment of the disclosure, the charging device may increase the first electrical parameter and decrease the second electrical parameter according to a preset adjustment ratio, so as to obtain the target electrical signal. The adjustment ratio (may also be referred to as an initial adjustment ratio, or an initial conversion ratio, etc.) may be understood as a degree of adjustment for the first electrical parameter and the second electrical parameter, and the preset adjustment ratio may refer to a default ratio or the like preset by the charging device. In the process of charging the power receiving apparatus using the charging apparatus, the adjustment ratio may be adaptively adjusted according to actual requirements, or the like, and the present disclosure is not particularly limited. For example: the first electrical parameter may be voltage, the second electrical parameter may be current, the preset adjustment ratio is 1:2 and 2:1, if the first electrical parameter of the initial electrical signal is 20V, the second electrical parameter is 10A, and after the result is adjusted, the first electrical parameter of the target electrical signal may be 40V, the second electrical parameter is 5A, and the like, and the charging power for the powered device is 200W. In the embodiment of the disclosure, the preset adjustment ratio may be one or two. If the first electric parameter is one, the adjustment ratio of the first electric parameter is a preset adjustment ratio, and the adjustment ratio of the second electric parameter is the inverse of the preset adjustment ratio. If the number of the first electric parameters is two, the adjustment ratio of the first electric parameters is a first preset adjustment ratio, and the adjustment ratio of the second electric parameters is a second preset adjustment ratio, etc. That is, in order to ensure that the charging power is unchanged, the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In other embodiments, the first electrical parameter may be current and the second electrical parameter may be voltage. Of course, the first electrical parameter may also be a resistance, the second electrical parameter may be a voltage, etc. For example: the charging device may increase the charging power of the charging device by reducing the resistance, increasing the voltage, and the like.

In one possible embodiment, the charging device may also increase or decrease each electrical parameter in a customized manner according to the actual requirements. For example: in order to increase the charging power, the electronic device may adjust the initial electric signal having a voltage of 5V and a current of 2A to the target electric signal having a voltage of 10V and a current of 4A, and adjust the charging power from 10W to 40W.

In the embodiment of the disclosure, by increasing the first electrical parameter and reducing the second electrical parameter according to the preset adjustment ratio, the target electrical signal with unchanged charging power can be obtained, so that the second electrical parameter can be effectively reduced while the charging power is unchanged, and the problems of heating and the like caused by overlarge second electrical parameter are prevented.

In some embodiments, the transformation module is configured to:

acquiring the temperature of the charging equipment in the process of adjusting the first electric parameter and the second electric parameter according to the preset adjustment ratio;

And updating the preset adjustment ratio based on the temperature of the charging equipment.

In the embodiment of the disclosure, the temperature of the charging device may be obtained during the process of adjusting the first electrical parameter and the second electrical parameter of the initial electrical signal according to the preset adjustment ratio. The charging device may detect the temperature of the charging device through a temperature module such as a temperature sensor configured by itself, for example: the charging equipment is provided with a temperature sensor, and the temperature acquired by the temperature sensor is used as the current working temperature of the charging equipment.

Since temperature is a significant factor affecting charging of a charging apparatus and a power receiving apparatus, for example: when the charging power is too high, the problem of heating of the charging equipment and the power receiving equipment is easy to occur, and then safety accidents occur. After determining the temperature of the charging device or the power receiving device when charging, the charging device may update the preset adjustment ratio according to the temperature of the charging device and/or the temperature of the power receiving device when charging. For example: the charging device may preset a temperature threshold of 25 degrees celsius, and adjust the first electrical parameter of 20V and the second electrical parameter of 12A of the initial electrical signal at a preset adjustment ratio of 1:2, so as to obtain a target electrical signal of the first electrical parameter of 40V and the second electrical parameter of 6A. The temperature obtained by the charging device is 32 ℃ greater than the preset temperature threshold, so that the charging device can reduce the second electrical parameter, namely, the preset adjustment ratio of 1:2 is updated to the preset adjustment ratio of 1:4, and the target electrical signals of the first electrical parameter of 80V and the second electrical parameter of 3A are obtained after adjustment.

In one possible embodiment, the electronic device may determine the specific preset adjustment ratio by presetting a correspondence between the temperature and the preset adjustment ratio, and then may determine the specific preset adjustment ratio according to the obtained temperature and the correspondence. For example: the preset adjustment ratio corresponding to the temperature of 21-25 ℃ is 1:2, the preset adjustment ratio corresponding to the temperature of 26-30 ℃ is 1:3, the preset adjustment ratio corresponding to the temperature of 31-35 ℃ is 1:4, and the like. I.e. the temperature obtained may be inversely related to the preset adjustment ratio, it is understood that the higher the temperature the smaller the second electrical parameter (i.e. current) may be, etc.

In the embodiment of the disclosure, the temperature of the charging equipment is obtained in the process of adjusting according to the preset adjustment ratio, and the preset adjustment ratio is updated based on the temperature of the charging equipment, so that the first electric parameter and the second electric parameter in the target electric signal can be timely and accurately adjusted, and the heating and the like in the charging process are reduced.

In some embodiments, the transformation module comprises: at least one charge pump, each of said charge pumps being connected in parallel;

at least one of the charge pumps is configured to adjust a first electrical parameter and a second electrical parameter of the initial electrical signal if the charging device is connected to a power source.

In an embodiment of the disclosure, the conversion module may include at least one charge pump, where each charge pump is connected in parallel, i.e., each charge pump may operate independently. The at least one charge pump adjusts the first electrical parameter and the second electrical parameter of the initial electrical signal with the charging device connected to the power source.

In the embodiment of the disclosure, the first electrical parameter and the second electrical parameter in the target electrical signal can be timely and accurately adjusted by using at least one charge pump as the conversion module.

In some embodiments, the charging device further comprises:

and the control module is configured to close the first charge pump if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value in the process of adjusting the first electric parameter and the second electric parameter through the first charge pump in at least one charge pump.

In the disclosed embodiments, the charge pump, also referred to as a switched capacitor voltage converter, is a dc-dc converter (converter) or the like that uses so-called "Flying" or "pumping" capacitors (rather than inductors or transformers) to store energy. The charge pump may multiply or reduce the first electrical parameter and/or the second electrical parameter of the initial electrical signal by a factor (which may also be referred to as a conversion ratio, etc.) to obtain the desired target electrical signal, e.g., a conversion ratio of 1/2, 3, etc.

In the process of adjusting the first electrical parameter and the second electrical parameter by adopting the first charge pump, the current working temperature of the first charge pump can be detected, and the working state of the first charge pump is determined according to the current working temperature. For example: the charging device may preset a preset temperature threshold (e.g., 35 degrees celsius), and if it is determined that the current operating temperature of the first charge pump is 39 degrees celsius, the charging device is greater than the preset temperature threshold. The charging device can turn off the first charge pump, stop charging the power receiving device, and prevent accidents such as heating of the power receiving device caused by the too high temperature of the first charge pump, and unstable electric parameters such as voltage or current input into the power receiving device caused by the too high temperature of the first charge pump, so that faults such as damage to a battery of the power receiving device are caused.

In one possible embodiment, the charging device determines that the current operating temperature of the first charge pump is less than or equal to the preset temperature threshold, and may then continue to charge the powered device. After the first charge pump is turned off, if the temperature of the charge pump is detected to be less than the preset temperature threshold, the first electric parameter and the second electric parameter can be continuously adjusted by using the first charge pump, and the powered device can be continuously charged.

In the embodiment of the disclosure, in the process of adjusting the first electrical parameter and the second electrical parameter by the first charge pump in the at least one charge pump, if the temperature of the first charge pump is detected to be greater than the preset temperature threshold, the first charge pump is turned off, so that the first charge pump is ensured to work normally, and the situation that faults occur due to overhigh temperature of the first charge pump is prevented.

In some embodiments, the control module is configured to determine a second charge pump from at least one of the charge pumps after turning off the first charge pump, and adjust the first electrical parameter and the second electrical parameter with the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

In an embodiment of the disclosure, the conversion module may switch off the first charge pump if the temperature of the first charge pump is detected to be greater than a preset temperature threshold in a process of adjusting the first electrical parameter and the second electrical parameter by the first charge pump of the at least one charge pump. For example: the charging device may include 2 charge pumps for adjusting the first and second electrical parameters of the initial electrical signal, the first and second charge pumps, and a preset temperature threshold (e.g., 35 degrees celsius) preset therein. The charging device may first use the first charge pump to adjust the first electrical parameter and the second electrical parameter without invoking the second charge pump while detecting the operating temperature of the first charge pump. And under the condition that the working temperature (such as 40 ℃ and the like) of the first charge pump is determined to be greater than a preset temperature threshold, the first charge pump is turned off, and the second charge pump is called to adjust the first electric parameter and the second electric parameter, wherein the preset adjustment ratio of the second charge pump can be the same as the preset adjustment ratio of the first charge pump. Before invoking the second charge pump, a current temperature of the second charge pump may be determined, ensuring that the current temperature of the second charge pump is less than or equal to a preset temperature threshold. If the current temperature of the second charge pump is greater than the preset temperature threshold, a third charge pump may be used.

In the embodiment of the disclosure, after the first charge pump is turned off, the second charge pump is determined from at least one charge pump, and then the first electrical parameter and the second electrical parameter are adjusted through the second charge pump, wherein the current temperature of the second charge pump is less than or equal to the preset temperature threshold, so that the continuity of charging the powered device can be ensured, and the charging and the like can be performed quickly and efficiently.

According to the charging device in the embodiment of the disclosure, after the first electric parameter and the second electric parameter of the initial electric signal are adjusted by the conversion module, the target electric signal is obtained, and then the target electric signal is transmitted to the power receiving device by the electric signal output module connected with the conversion module. Therefore, after the initial electric signal is adjusted, the target electric signal input to the power receiving equipment can be enabled to belong to the standard range which can be born by the power receiving equipment, so that the charging power of the power receiving equipment is ensured, and meanwhile, the problem of heating of the power receiving equipment caused by overlarge electric parameters in the target electric signal is prevented.

Fig. 4 is a flowchart illustrating a charging method according to an exemplary embodiment of the present disclosure, as shown in fig. 4, applied to the above-described charging apparatus, the charging method mainly including the steps of:

In step 401, a first electrical parameter and a second electrical parameter of an initial electrical signal from a power source are adjusted to obtain a target electrical signal;

in step 402, the target electrical signal is transmitted to a powered device to charge the powered device with the target electrical signal.

In the embodiment of the present disclosure, a charging device (e.g., an adapter, a charger, etc.) may be understood as a device capable of performing conversion processing on an electrical signal, for performing charging processing on a powered device (or a battery, a cell, etc.). For example: an electrical signal (e.g., 1000 volts) transmitted from a power source (or power supply plant) can be converted into an electrical signal (e.g., 20 volts) that can meet a standard range that can be tolerated by powered devices, and so forth. A power supply may refer to a device that converts other forms of energy into electrical energy and provides the electrical energy to a powered device (circuit), and may also be referred to as a power supply. Common power sources may include: dry batteries (direct current) and household 110 volt (V) -220 volt (V) ac power supplies, etc. The electrical signal may be a voltage or a current that varies with time, and various information such as transmission, exchange, storage, extraction, and the like may be performed by the electrical signal (may also be referred to as a signal). The form of the electrical signal is diverse and can be classified from different angles. For example: the electrical signal can be classified into a certain signal and a random signal according to randomness of the electrical signal; the periodicity of the electrical signal can be divided into periodic signals and non-periodic signals; the electrical signal continuity can be divided into continuous time signals and discrete signals; the electrical signals may be divided into analog signals, digital signals, etc. in the electronic circuit. The initial electrical signal may refer to an electrical signal received by the charging device from a power source, and is not particularly limited in order to distinguish from electrical signals for other purposes such as input and output.

In embodiments of the present disclosure, an electrical signal may be characterized by a variety of electrical parameters, which may refer to parameters used to characterize the electrical signal. For example: current, voltage, power, frequency, waveform, phase, period, pulse width, etc. The first electrical parameter and the second electrical parameter may refer to any different electrical parameter of the electrical signal, such as: the first electrical parameter is voltage and the second electrical parameter is current; the first electrical parameter is phase, the second electrical parameter is pulse width, etc.

The charging device may adjust the first electrical parameter and the second electrical parameter of the initial electrical signal from the power source to obtain a target electrical signal, which may refer to an electrical signal after the initial electrical signal is adjusted. Adjustment may be understood as a transformation process of an electrical parameter of an initial electrical signal, which adjustment (which may also be referred to as transformation) may include: an increase, decrease, or a filtering, type conversion (e.g., digital, analog, etc.) of the electrical signal. Taking the example that the first electrical parameter of the initial electrical signal is voltage 20V and the second electrical parameter is current 10A, the maximum current of the interface module between the charging equipment and the powered equipment during charging is 8A. The charging device may increase the first electrical parameter and decrease the second electrical parameter to obtain the target electrical signal, and the voltage of the target electrical signal may be 40V and the current may be 5A. Under the condition that the charging power of the charging equipment is kept unchanged by 200 watts (W), the current input to the power receiving equipment is reduced, and the heating problem of an interface module between the charging equipment and the power receiving equipment during charging can be reduced.

After the charging apparatus obtains the target electric signal, the target electric signal may be transmitted to the power receiving apparatus to charge the power receiving apparatus by the target electric signal. The power receiving apparatus may refer to an apparatus that uses electric energy and is capable of repeatedly charging the battery module, and the power receiving apparatus may charge by receiving an electric signal from the charging apparatus. For example: cell phone, intelligent audio amplifier, robot, electric motor car, electric automobile etc.. The charging device may transmit the target electric signal to the power receiving device in various manners such as wired transmission or wireless transmission. For example: the charging device may transmit the target electrical signal to the battery cell of the power receiving device by using the power cord to perform charging processing, or may transmit the target electrical signal to the battery cell of the power receiving device by using a module such as a coil to perform charging processing.

In the related art, a charging device changes a charging power by changing a current, and the charging power may be used to characterize a charging speed, and may be determined by a voltage and a current of an initial electrical signal or a voltage and a current of a target electrical signal. For example: the charging power is to reach 100W, the voltage input to the power receiving apparatus by the charging apparatus is 20V, the current is 5A, the voltage input to the power receiving apparatus by the charging apparatus is 20V, the current is 6A, the voltage input to the power receiving apparatus by the charging apparatus is 20V, the current is 10A, and the like, to reach 200W. That is, it can be understood that in the related art, the charging device does not change the magnitude of the voltage, changes the charging power by changing the magnitude of the current, and the like.

However, in the related art, the charging current is too large, which causes a problem that the power receiving apparatus generates heat to a large extent. In the embodiment of the disclosure, the charging power can be ensured by adjusting a plurality of electrical parameters of the electrical signal, and meanwhile, the electrical signal of the charging equipment received by the power receiving equipment is ensured to be within a standard range (such as 0-6A, etc.) which can be born, so that heat generation and the like are reduced.

In the embodiment of the disclosure, the target electric signal is obtained by adjusting the first electric parameter and the second electric parameter of the initial electric signal, and then the target electric signal is transmitted to the power receiving device. Therefore, after the plurality of electric parameters of the initial electric signal are adjusted at the same time, the target electric signal input to the power receiving equipment can be enabled to belong to the standard range which can be born by the power receiving equipment, and the problem that the power receiving equipment generates heat due to overlarge electric parameters in the target electric signal is prevented while the charging power of the power receiving equipment is ensured.

In some embodiments, the adjusting the first electrical parameter and the second electrical parameter of the initial electrical signal from the power source to obtain the target electrical signal includes:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

Wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In the embodiment of the disclosure, the charging device may increase the first electrical parameter and decrease the second electrical parameter according to a preset adjustment ratio, so as to obtain the target electrical signal. The adjustment ratio (may also be referred to as an initial adjustment ratio, or an initial conversion ratio, etc.) may be understood as a degree of adjustment for the first electrical parameter and the second electrical parameter, and the preset adjustment ratio may refer to a default ratio or the like preset by the charging device. In the process of charging the power receiving apparatus using the charging apparatus, the adjustment ratio may be adaptively adjusted according to actual requirements, or the like, and the present disclosure is not particularly limited. For example: the preset adjustment ratio is 1:2 and 2:1, if the first electrical parameter of the initial electrical signal is voltage, the voltage is 20V, the second electrical parameter is current, the current is 10A, and after the adjustment ratios corresponding to the voltage and the current are respectively adjusted, the first electrical parameter of the target electrical signal can be 40V, the second electrical parameter is 5A, and the like, and the charging power of the power receiving device is 200W unchanged. In the embodiment of the disclosure, the preset adjustment ratio may be one or two. If the first electric parameter is one, the adjustment ratio of the first electric parameter is a preset adjustment ratio, and the adjustment ratio of the second electric parameter is the inverse of the preset adjustment ratio. If the number of the first electric parameters is two, the adjustment ratio of the first electric parameters is a first preset adjustment ratio, and the adjustment ratio of the second electric parameters is a second preset adjustment ratio, etc. That is, in order to ensure that the charging power is unchanged, the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

In one possible embodiment, the charging device may also increase or decrease each electrical parameter in a customized manner according to the actual requirements. For example: in order to increase the charging power, the electronic device may adjust the initial electric signal having a voltage of 5V and a current of 2A to the target electric signal having a voltage of 10V and a current of 4A, and adjust the charging power from 10W to 40W.

In the embodiment of the disclosure, by increasing the first electrical parameter and reducing the second electrical parameter according to the preset adjustment ratio, the target electrical signal with unchanged charging power can be obtained, so that the second electrical parameter can be effectively reduced while the charging power is unchanged, and the problems of heating and the like caused by overlarge second electrical parameter are prevented.

In some embodiments, the method further comprises:

acquiring the temperature of the charging equipment in the process of adjusting according to the preset adjusting ratio;

and updating the preset adjustment ratio based on the temperature of the charging equipment.

In the embodiment of the disclosure, the temperature of the charging device may be obtained during the process of adjusting the first electrical parameter and the second electrical parameter of the initial electrical signal according to the preset adjustment ratio. The charging device may detect the temperature of the charging device through a temperature module such as a temperature sensor configured by itself, for example: the charging equipment is provided with a temperature sensor, and the temperature acquired by the temperature sensor is used as the current working temperature of the charging equipment.

In one possible embodiment, the charging device may also obtain the temperature of the powered device. The charging device may detect the temperature of the power receiving device through a temperature module such as a temperature sensor configured by itself. For example: the charging device may be provided with a temperature sensor at a connection portion (e.g., an output end of a data line, etc.) with the power receiving device, and the temperature of the connection portion of the charging device and the power receiving device, which is acquired by the temperature sensor, may be used as the temperature of the power receiving device. The charging device may also receive temperature information from the powered device itself to determine the temperature of the charging device. For example: the power receiving device detects its own temperature according to the isothermal module of its own temperature sensor, generates temperature information (for example, the current temperature of the battery is 30 degrees celsius, etc.), and then sends the temperature information to the charging device through a connection portion between the charging device and the power receiving device (for example, the charging device is connected with the power receiving device through a data line).

Since temperature is a significant factor affecting charging of a charging apparatus and a power receiving apparatus, for example: when the charging power is too high, the problem of heating of the charging equipment and the power receiving equipment is easy to occur, and then safety accidents occur. After determining the temperature of the charging device or the power receiving device when charging, the charging device may update the preset adjustment ratio according to the temperature of the charging device and/or the temperature of the power receiving device when charging. For example: the charging device may preset a temperature threshold of 25 degrees celsius, and adjust the first electrical parameter of 20V and the second electrical parameter of 12A of the initial electrical signal at a preset adjustment ratio of 1:2, so as to obtain a target electrical signal of the first electrical parameter of 40V and the second electrical parameter of 6A. The temperature obtained by the charging device is 32 ℃ greater than the preset temperature threshold, so that the charging device can reduce the second electrical parameter, namely, the preset adjustment ratio of 1:2 is updated to the preset adjustment ratio of 1:4, and the target electrical signals of the first electrical parameter of 80V and the second electrical parameter of 3A are obtained after adjustment.

In one possible embodiment, the electronic device may determine the specific preset adjustment ratio by presetting a correspondence between the temperature and the preset adjustment ratio, and then may determine the specific preset adjustment ratio according to the obtained temperature and the correspondence. For example: the preset adjustment ratio corresponding to the temperature of 21-25 ℃ is 1:2, the preset adjustment ratio corresponding to the temperature of 26-30 ℃ is 1:3, the preset adjustment ratio corresponding to the temperature of 31-35 ℃ is 1:4, and the like. I.e. the temperature obtained may be inversely related to the preset adjustment ratio, it is understood that the higher the temperature the smaller the second electrical parameter (i.e. current) may be, etc.

In the embodiment of the disclosure, the temperature of the charging equipment is obtained in the process of adjusting according to the preset adjustment ratio, and the preset adjustment ratio is updated based on the temperature of the charging equipment, so that the first electric parameter and the second electric parameter in the target electric signal can be timely and accurately adjusted, and the heating and the like in the charging process are reduced.

In some embodiments, the charging device comprises at least one charge pump; the method further comprises the steps of:

and in the process of adjusting the first electric parameter and the second electric parameter through a first charge pump in at least one charge pump, if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value, the first charge pump is turned off.

In embodiments of the present disclosure, the charging device may comprise at least one charge pump by which the first and second electrical parameters of the initial electrical signal are adjusted. A charge pump, also called switched capacitor voltage converter, is a kind of dc-dc converter (converter) or the like that uses so-called "Flying" or "pumping" capacitors (rather than inductors or transformers) to store energy. The charge pump may multiply or reduce the first electrical parameter and/or the second electrical parameter of the initial electrical signal by a factor (which may also be referred to as a conversion ratio, etc.) to obtain the desired target electrical signal, e.g., a conversion ratio of 1/2, 3, etc.

In the process of adjusting the first electrical parameter and the second electrical parameter by adopting the first charge pump, the current working temperature of the first charge pump can be detected, and the working state of the first charge pump is determined according to the current working temperature. For example: the charging device may preset a preset temperature threshold (e.g., 35 degrees celsius), and if it is determined that the current operating temperature of the first charge pump is 39 degrees celsius, the charging device is greater than the preset temperature threshold. The charging device can turn off the first charge pump, stop charging the power receiving device, and prevent accidents such as heating of the power receiving device caused by the too high temperature of the first charge pump, and unstable electric parameters such as voltage or current input into the power receiving device caused by the too high temperature of the first charge pump, so that faults such as damage to a battery of the power receiving device are caused.

In one possible embodiment, the charging device determines that the current operating temperature of the first charge pump is less than or equal to the preset temperature threshold, and may then continue to charge the powered device. After the first charge pump is turned off, if the temperature of the charge pump is detected to be less than the preset temperature threshold, the first electric parameter and the second electric parameter can be continuously adjusted by using the first charge pump, and the powered device can be continuously charged.

In the embodiment of the disclosure, in the process of adjusting the first electrical parameter and the second electrical parameter by the first charge pump in the at least one charge pump, if the temperature of the first charge pump is detected to be greater than the preset temperature threshold, the first charge pump is turned off, so that the first charge pump is ensured to work normally, and the situation that faults occur due to overhigh temperature of the first charge pump is prevented.

In some embodiments, the method further comprises:

determining a second charge pump from at least one of the charge pumps after turning off the first charge pump, and adjusting the first electrical parameter and the second electrical parameter by the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

In the embodiment of the disclosure, the charging device may switch off the first charge pump if the temperature of the first charge pump is detected to be greater than a preset temperature threshold in the process of adjusting the first electrical parameter and the second electrical parameter by the first charge pump of the at least one charge pump. For example: the charging device may include 2 charge pumps for adjusting the first and second electrical parameters of the initial electrical signal, the first and second charge pumps, and a preset temperature threshold (e.g., 35 degrees celsius) preset therein. The charging device may first use the first charge pump to adjust the first electrical parameter and the second electrical parameter without invoking the second charge pump while detecting the operating temperature of the first charge pump. And under the condition that the working temperature (such as 40 ℃ and the like) of the first charge pump is determined to be greater than a preset temperature threshold, the first charge pump is turned off, and the second charge pump is called to adjust the first electric parameter and the second electric parameter, wherein the preset adjustment ratio of the second charge pump can be the same as the preset adjustment ratio of the first charge pump. Before invoking the second charge pump, a current temperature of the second charge pump may be determined, ensuring that the current temperature of the second charge pump is less than or equal to a preset temperature threshold. If the current temperature of the second charge pump is greater than the preset temperature threshold, a third charge pump may be used.

In the embodiment of the disclosure, after the first charge pump is turned off, the second charge pump is determined from at least one charge pump, and then the first electrical parameter and the second electrical parameter are adjusted through the second charge pump, wherein the current temperature of the second charge pump is less than or equal to the preset temperature threshold, so that the continuity of charging the powered device can be ensured, and the charging and the like can be performed quickly and efficiently.

In some embodiments, the method further comprises:

under the condition that the first electrical parameter and/or the second electrical parameter of the target electrical signal are/is larger than a preset parameter threshold value, carrying out shunt processing on the target electrical signal to obtain a plurality of shunt electrical signals;

respectively adjusting the first electric parameter and the second electric parameter of each split electric signal to obtain an actual electric signal;

and according to each actual electric signal, carrying out charging processing on the battery cell in the power receiving equipment.

In the embodiment of the disclosure, the shunt electric signal may refer to a sub-electric signal of the target electric signal, all the shunt electric signals may be integrated into the target electric signal, and the actual electric signal may be understood as an electric signal input to a battery cell (or a battery) of the powered device. The charging device determines that the first electrical parameter of the target electrical signal is 50V, the second electrical parameter is 8A, and the preset parameter threshold is 6A, and the charging device may determine that the second electrical parameter is greater than the preset parameter threshold. The charging device may split the 50V, 8A target electrical signal into 2 50V, 4A split electrical signals.

The charging device can then adjust the first electrical parameter and the second electrical parameter of the 2 50V, 4A shunt electrical signals to obtain an actual electrical signal. For example: the 2 50V, 4A split electrical signals were adjusted to two 25V, 8A actual electrical signals. The technical solution of the present embodiment may be implemented by a charging device or by a power receiving device, which is not specifically limited in this disclosure.

In the embodiment of the disclosure, when the first electrical parameter and/or the second electrical parameter of the target electrical signal are/is greater than the preset parameter threshold, the target electrical signal is subjected to split processing to obtain a plurality of split electrical signals, the first electrical parameter and the second electrical parameter of each split electrical signal are respectively adjusted to obtain actual electrical signals, the battery cells in the power receiving equipment are subjected to charging processing according to each actual electrical signal, and the parallel charging of a plurality of electrical signal inputs is realized by the battery cells, so that the charging efficiency and the like can be effectively improved.

Fig. 5 is a schematic charging diagram of the first embodiment of the present disclosure, as shown in fig. 5, in order to make the charging power reach 200W, only the existing charging power (for example, the existing charging power is 120W, where the voltage is 20V and the current is 6A) can be regenerated, the current is increased based on the existing charging power, the electric signals of 20V and 10A are input to the mobile phone through the charging device, then the split processing is performed to obtain two sub-electric signals of 20V and 5A, the two sub-electric signals are respectively converted by the charge pump 1 and the charge pump 2, two charging signals of 40V and 2.5A are obtained, and the two charging signals are input to the single power-saving core or the double power-saving core for charging and the like. However, since the interface for connecting the charging device in the mobile phone cannot bear the current which lasts for 10A, and the charge pump can only realize the adjustment of the adjustment ratio of 2 to 1 or 4 to 2, if the charging device continues to increase the charging power in the prior art, the heating problem can occur, so that potential safety hazards and the like appear in the charging process of the power receiving device.

Fig. 6 is a second charge schematic diagram, as shown in fig. 6, in which the conversion module is integrated on the data line, and the conversion module includes at least one charge pump, and the adjustment ratio set for the charge pump is 1 to 2, and the first electrical parameter is voltage and the second electrical parameter is current. The electric signals of 20V and 10A (namely, the charging power is 200W) are output through the adapter, then the electric pumps with the proportion of 1 to 2 are integrated at the wire connectors of the data lines, the electric signals of 40V and 5A are obtained through the conversion of the electric pumps, the electric signals are input into the mobile phone through the TypeC interface, the electric signals of 40V and 5A can be split into electric signals of two paths of 40V and 2.5A through overvoltage protection (Over Voltage Protection, OVP) in the mobile phone, the electric signals are respectively converted through the first electric pump (Charge Pumping, CP) and the second electric pump, the electric signals of two paths of 10V and 10A are obtained, and the battery (such as a double-string 8V battery) is charged.

In the charge pump charging scheme in the related art, when a TypeC interface or other standard connectors are used, the charging scheme is limited by the overcurrent capacity of an interface module and the like, so that it is extremely difficult to support the power receiving equipment such as a mobile phone to achieve 200W charging power. Therefore, in order to continuously improve the charging speed and the charging power of the mobile phone, the charging method of the present disclosure is provided. The 1 to 2 boosting charge pump can be added at the adapter connector end, and after the authentication of the adapter, the wire and the mobile phone is successful, the voltage output by the adapter can be boosted by one time at the wire type C connector end by the 1 to 2 charge pump, and meanwhile, the current is reduced by half. If the conventional scheme of 200W of charging power is adopted, 20V and 10A of voltage and current are adopted, and the electric signal fed into the mobile phone after the technical scheme of the present disclosure is changed into 40V and 5A of voltage and current, so that the charging current input into the mobile phone is effectively reduced, the heat loss of the charging circuit and the heating of the charging circuit are reduced, and a new architecture and approach are provided for faster charging of the mobile phone.

Through the technical scheme, the first electric parameter and the second electric parameter of the initial electric signal can be adjusted to obtain the target electric signal, and then the target electric signal is transmitted to the power receiving equipment. Therefore, after the plurality of electric parameters of the initial electric signal are adjusted at the same time, the target electric signal input to the power receiving equipment can be enabled to belong to the standard range which can be born by the power receiving equipment, and the problem that the power receiving equipment generates heat due to overlarge electric parameters in the target electric signal is prevented while the charging power of the power receiving equipment is ensured.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present disclosure, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation of the embodiments of the present disclosure. The foregoing embodiment numbers of the present disclosure are merely for description and do not represent advantages or disadvantages of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (13)

1. A charging apparatus, characterized by comprising:

the conversion module is configured to adjust the first electrical parameter and the second electrical parameter of the received initial electrical signal under the condition that the charging equipment is connected to a power supply, so as to obtain a target electrical signal;

and the electric signal output module is connected with the conversion module and is configured to transmit the target electric signal to the power receiving equipment under the condition that the output end of the electric signal output module is connected with the power receiving equipment.

2. The charging device according to claim 1, characterized in that the charging device comprises:

the conversion module is integrated at the input end of the data line;

the electric signal output module is positioned at the output end of the data line and is connected with the conversion module through the power line of the data line.

3. The charging device according to claim 1, characterized in that the charging device comprises:

The conversion module is integrated at the output end of the adapter and is configured to receive the initial electric signal under the condition that the input end of the adapter is connected to the power supply.

4. The charging device of claim 1, wherein the transformation module is configured to:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

5. The charging device of claim 4, wherein the transformation module is configured to:

acquiring the temperature of the charging equipment in the process of adjusting the first electric parameter and the second electric parameter according to the preset adjustment ratio;

and updating the preset adjustment ratio based on the temperature of the charging equipment.

6. The charging device of claim 1, wherein the transformation module comprises: at least one charge pump, each of said charge pumps being connected in parallel;

at least one of the charge pumps is configured to adjust a first electrical parameter and a second electrical parameter of the initial electrical signal if the charging device is connected to a power source.

7. The charging device according to claim 6, characterized in that the charging device further comprises:

and the control module is configured to close the first charge pump if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value in the process of adjusting the first electric parameter and the second electric parameter through the first charge pump in at least one charge pump.

8. The charging apparatus of claim 7, wherein the control module is configured to determine a second charge pump from at least one of the charge pumps after turning off the first charge pump, the first and second electrical parameters being adjusted by the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

9. A charging method, characterized by being applied to the charging apparatus according to any one of claims 1 to 8, the method comprising:

adjusting a first electrical parameter and a second electrical parameter of an initial electrical signal from a power supply to obtain a target electrical signal;

the target electrical signal is transmitted to a powered device to charge the powered device with the target electrical signal.

10. The method of claim 9, wherein adjusting the first electrical parameter and the second electrical parameter of the initial electrical signal from the power source to obtain the target electrical signal comprises:

according to a preset adjustment ratio, increasing the first electrical parameter, and reducing the second electrical parameter to obtain the target electrical signal;

wherein the product of the first electrical parameter and the second electrical parameter before adjustment is the same as the product of the first electrical parameter and the second electrical parameter after adjustment.

11. The method according to claim 10, wherein the method further comprises:

acquiring the temperature of the charging equipment in the process of adjusting according to the preset adjusting ratio;

and updating the preset adjustment ratio based on the temperature of the charging equipment.

12. The method of claim 9, wherein the charging device comprises at least one charge pump; the method further comprises the steps of:

and in the process of adjusting the first electric parameter and the second electric parameter through a first charge pump in at least one charge pump, if the temperature of the first charge pump is detected to be greater than a preset temperature threshold value, the first charge pump is turned off.

13. The method according to claim 12, wherein the method further comprises:

determining a second charge pump from at least one of the charge pumps after turning off the first charge pump, and adjusting the first electrical parameter and the second electrical parameter by the second charge pump;

the current temperature of the second charge pump is smaller than or equal to the preset temperature threshold.

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