WO2018099257A1

WO2018099257A1 - Charging control method, apparatus, computing device and storage medium

Info

Publication number: WO2018099257A1
Application number: PCT/CN2017/110437
Authority: WO
Inventors: 陈林锋; 黄昌松
Original assignee: 珠海市魅族科技有限公司
Priority date: 2016-11-30
Filing date: 2017-11-10
Publication date: 2018-06-07
Also published as: CN106532831B; CN106532831A

Abstract

A charging control method, an apparatus, a computing device and a storage medium, wherein an initial charging voltage and an initial charging current of a battery to be charged (34) can be collected; and if it is determined that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold; a charge pump conversion circuit (32) is controlled to be powered on and a buck conversion circuit (33) is powered down, and an adapter (31) is controlled to output a dynamic voltage and a dynamic current to the charge pump conversion circuit (32) so as to charge the battery to be charged (34) via the charge pump conversion circuit (32). Compared with the prior art, an efficient charge pump conversion circuit (32) is used during high-current charging, thereby effectively increasing the buck conversion efficiency, accelerating the charging speed, and shortening the charging time; and since the charge pump conversion circuit (32) does not include an inductive device that easily generates thermal energy, the heat generation problem of the circuit during charging can be further solved.

Description

Charging control method, device, computing device and storage medium

The present application claims the priority of the Chinese Patent Application, filed on Nov. 30, 2016, which is hereby incorporated by reference.

Technical field

The present application relates to the field of charging technologies, and in particular, to a charging control method, apparatus, computing device, and storage medium.

Background technique

At present, when charging a terminal device (such as a mobile phone, a tablet computer, etc.), a charging system including an adapter and a Buck Switch Charger (Buck) circuit can be generally used (as shown in FIG. 1 , which is existing). The schematic diagram of the charging system described in the technology) completes the entire charging phase. Specifically, as can be seen from FIG. 1, the charging system described in the prior art may include an adapter 11, a buck conversion circuit 12, and a battery 13 to be charged. The charging phase may include a turbulent phase, a precharge phase, a CC (Constant Current) phase, and a CV (Constant Voltage) phase.

Specifically, in the prior art, the adapter can output only a fixed voltage (such as 3.5V) and a fixed current (such as 3A) to the buck conversion circuit; the buck conversion circuit can receive the received voltage by its own buck characteristic. The fixed voltage is step-down converted, thereby controlling the charging voltage and the charging current input to the battery to be charged, so as to realize charging of the terminal device. However, since the buck converter circuit usually includes an output inductor with coil loss and core loss, there may be a low buck conversion efficiency during the charging process of the terminal device (generally, below 91%) And the problem of slower charging speed, and the energy lost due to the output inductance is usually converted into heat energy, which also causes the terminal device to generate heat.

That is to say, the existing charging control method has problems of low buck conversion efficiency, slow charging speed, and serious heat generation.

Application content

The embodiment of the present application provides a charging control method, device, computing device, and storage medium, which are used to solve the problems of low voltage drop conversion efficiency, slow charging speed, and severe heat generation in the existing charging control method.

In a first aspect, an embodiment of the present application provides a charging control method, including:

Collecting an initial charging voltage of the battery to be charged and an initial charging current;

Determining that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold;

If so, controlling the charge pump conversion circuit to power up and the buck conversion circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to pass the charge pump conversion circuit to the battery to be charged Charging.

In conjunction with the first aspect, in a first possible implementation of the first aspect, controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit includes:

Determining, according to the initial charging voltage, an initial output voltage that the adapter needs to output to the charge pump conversion circuit;

And increasing, according to the initial output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set first voltage step, until determining that the charging current of the battery to be charged is at a set current Within the threshold range.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation of the first aspect, determining an initial output that the adapter needs to output to the charge pump conversion circuit according to the initial charging voltage The voltage is obtained by the following formula:

Vout0=(2*Vbat0)/η;

Wherein, the Vout0 represents an initial output voltage that the adapter needs to output to the charge pump conversion circuit; the Vbat0 represents an initial charging voltage of the battery to be charged; and the η represents a voltage conversion of the charge pump conversion circuit effectiveness.

In conjunction with the first possible implementation of the first aspect, in a third possible implementation of the first aspect, controlling the adapter to output a dynamic voltage and a dynamic power to the charge pump conversion circuit Flow, also includes:

Determining a first output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any current value within the current threshold range;

And increasing, according to the first output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set second voltage step, until determining that the charging voltage of the battery to be charged is at a set value Within the voltage threshold range.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the adapter outputs a dynamic voltage and a dynamic current to the charge pump conversion circuit, and further includes:

Determining a second output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any voltage value within the voltage threshold range;

Reducing, according to the second output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set third voltage step until the charging current of the battery to be charged is not greater than the current threshold .

In conjunction with the first aspect, in a fifth possible implementation manner of the first aspect, the charging control method further includes:

Controlling the buck conversion circuit to power on if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold And the charge pump conversion circuit is powered down, and the adapter is controlled to output a fixed voltage and a fixed current to the buck converter circuit to charge the battery to be charged through the buck converter circuit.

In a second aspect, an embodiment of the present application provides a charging control apparatus, including:

An acquisition module, configured to collect an initial charging voltage of the battery to be charged and an initial charging current;

a control module, configured to determine that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold, and if so, control the power pump conversion circuit to power up and the buck conversion circuit to be powered down, And controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to charge the battery to be charged through the charge pump conversion circuit.

In conjunction with the second aspect, in a first possible implementation of the second aspect,

The control module is specifically configured to determine, according to the initial charging voltage, an initial output voltage that the adapter needs to output to the charge pump conversion circuit; and, according to the initial output voltage, according to the first setting The voltage stepping increases the voltage that the adapter needs to output to the charge pump conversion circuit until it is determined that the charging current of the battery to be charged is within a set current threshold range.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect,

The control module is specifically configured to determine an initial output voltage that the adapter needs to output to the charge pump conversion circuit by using the following formula:

Vout0=(2*Vbat0)/η;

In conjunction with the first possible implementation of the second aspect, in a third possible implementation of the second aspect,

The control module is further configured to determine a first output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any current value within the current threshold range; An output voltage is used as a reference, and the voltage that the adapter needs to output to the charge pump conversion circuit is increased according to the set second voltage step until it is determined that the charging voltage of the battery to be charged is within a set voltage threshold range. .

In conjunction with the third possible implementation of the second aspect, in a fourth possible implementation of the second aspect,

The control module is further configured to determine a second output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any voltage value within the voltage threshold range; The output voltage is used as a reference, and the voltage that the adapter needs to output to the charge pump conversion circuit is decreased according to the set third voltage step until the charging current of the battery to be charged is not greater than The current threshold.

In conjunction with the second aspect, in a fifth possible implementation of the second aspect,

The control module is further configured to: if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold, then the control The buck converter circuit is powered up and the charge pump conversion circuit is powered down, and a fixed voltage and a fixed current are output to the buck converter circuit to charge the battery to be charged through the buck converter circuit.

In a third aspect, an embodiment of the present application further provides a computing device, including a memory and a processor, where:

The memory is configured to store program instructions;

The processor is configured to invoke a program instruction stored in the memory, and execute the charging control method described in the embodiment of the present application according to the obtained program.

In a fourth aspect, the embodiment of the present application further provides a computer storage medium, where the computer storage medium stores computer executable instructions, where the computer executable instructions are used to cause the computer to perform the operations described in the embodiments of the present application. Charge control method.

According to the charging control method, device, computing device and storage medium provided by the first to fourth aspects, an initial charging voltage of the battery to be charged and an initial charging current may be collected; and if the initial charging voltage is determined to be greater than a set voltage threshold And the initial charging current is greater than the set current threshold, controlling the charge pump conversion circuit to be powered up and the buck conversion circuit to be powered down, and controlling the adapter to output dynamic voltage and dynamic to the charge pump conversion circuit a current to charge the battery to be charged through the charge pump conversion circuit. Compared with the prior art, since a high-efficiency charge pump conversion circuit is used in charging a large current, the buck conversion efficiency is effectively improved, the charging speed is accelerated, and the charging time is shortened; and, due to the charge pump conversion circuit It does not contain an inductive device that is prone to generate thermal energy, and thus can further solve the problem of heat generation of the circuit during charging.

DRAWINGS

In order to more clearly illustrate the technical solution in the embodiment of the present application, the following description will be made on the embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are briefly described, and the drawings in the following description are only a few embodiments of the present application, and those skilled in the art can also These figures take additional drawings.

1 is a schematic view showing a simple structure of a charging system provided in the prior art;

2 is a schematic flow chart of a charging control method provided in Embodiment 1 of the present application;

3 is a diagram showing an example of the structure of a charging system provided in Embodiment 1 of the present application;

FIG. 4 is a schematic flowchart diagram of a charging control method provided in Embodiment 1 of the present application;

FIG. 5 is a schematic structural diagram of a first possible charging system provided in Embodiment 1 of the present application;

6 is a schematic structural diagram of a second possible charging system provided in Embodiment 1 of the present application;

FIG. 7 is a schematic structural diagram of a third possible charging system provided in Embodiment 1 of the present application;

FIG. 8 is a schematic structural diagram of a charging control apparatus provided in Embodiment 2 of the present application;

FIG. 9 is a schematic structural diagram of a computing device provided in Embodiment 3 of the present application.

detailed description

The present invention will be further described in detail with reference to the accompanying drawings, in which FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Embodiment 1:

In order to solve the problem that the existing charging control method has low buck conversion efficiency, slow charging speed, and serious heat generation, the first embodiment of the present application provides a charging control method, as shown in FIG. 2 , which is A schematic flow chart of the steps of the charging control method described in the first embodiment of the present application. Specific It can be seen from FIG. 2 that the charging control method may include the following steps:

Step 201: collecting an initial charging voltage of the battery to be charged and an initial charging current;

Step 202: Determine that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold;

Step 203: If yes, controlling the charge pump conversion circuit to power up and the buck conversion circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to pass the charge pump conversion circuit to the Charge the battery to be charged.

That is, in the embodiment of the present application, an initial charging voltage of the battery to be charged and an initial charging current may be collected; and if it is determined that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set value a current threshold, controlling the charge pump conversion circuit to be powered up and the buck converter circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to pass the charge pump conversion circuit The battery to be charged is charged. Compared with the prior art, since a high-efficiency charge pump conversion circuit is used in charging a large current, the buck conversion efficiency is effectively improved, the charging speed is accelerated, and the charging time is shortened; and, due to the charge pump conversion circuit It does not contain an inductive device that is prone to generate thermal energy, and thus can further solve the problem of heat generation of the circuit during charging.

The voltage threshold and the current threshold can be flexibly set according to actual conditions, such as 3.5V and 2A, as long as the actual requirements can be met. In addition, the voltage threshold may not be less than the starting voltage of the CC phase (usually 3V), which is not described herein.

Furthermore, in the embodiment of the present application, the execution body of the charging control method may be any charging control device capable of implementing the charging control method, and the charging control device may be any integrated in the adapter or integrated The integrated device in the terminal device (such as a mobile phone, a tablet computer, etc., connected to the adapter, and the terminal device can usually be connected to the adapter through a USB data cable or the like) can also be any independent The adapter and the independent device of the terminal device.

It should be noted that the initial charging voltage and the initial charging current of the battery to be charged may be the charging voltage and the charging current of the battery to be charged at the time of collection, usually along with the collection time. The change has changed. For example, if the time T1 is collected, the initial charging voltage and the initial charging current may be 2V and 2A; when the time T2 is collected, the initial charging voltage and the initial charging current may be 3V and 2.8A, etc. The application examples will not be described in detail.

It should be noted that collecting the initial charging voltage of the battery to be charged and the initial charging current may further include:

Collecting an initial charging voltage of the battery to be charged and an initial charging current in real time;

The initial charging voltage of the battery to be charged and the initial charging current are collected every set time.

The setting time length can be flexibly set according to actual requirements, for example, it can be set to 1 second, 1 minute, and 1 hour, and the like, as long as the actual requirements can be met, the embodiment of the present application does not limit this.

Further, the charging control method described in the embodiment of the present application can be applied to the charging system shown in FIG. 3, which is a simple structural diagram of the charging system described in the embodiment of the present application. Specifically, as shown in FIG. 3, the charging system may include at least an adapter 31, a charge pump conversion circuit 32, a buck conversion circuit 33, a battery to be charged 34, and a charging control device 35, which are not described herein.

It should be noted that the battery to be charged may be a battery of the terminal device, and may be installed inside the terminal device. Moreover, the initial charging voltage of the battery to be charged may be the current voltage of the battery to be charged, and the initial charging current of the battery to be charged may be 0, which is not described herein.

In addition, it should be noted that, in the embodiment of the present application, the charge pump conversion circuit may be an existing Charge Pump Converter circuit; and the buck conversion circuit may be an existing Buck Switch Charger circuit.

It can be known from the prior art that the Charge Pump Converter circuit can usually include multiple (generally four) switching devices (such as triodes, field effect transistors, etc.) and capacitive devices, and the charging principle of the Charge Pump Converter circuit. The adapter connected to the Charge Pump Converter circuit can charge the capacitor device in the Charge Pump Converter circuit and the battery to be charged during the first half of each charging cycle; during each charging cycle The second half of the cycle, the capacitive device in the Charge Pump Converter circuit can charge the battery to be charged. Since the inductor device is not included in the Charge Pump Converter circuit, there is no problem of heating of the charging circuit and the terminal device when charging at a large current, so that a large current can be used to charge the battery to be charged, which effectively improves the battery. User experience and satisfaction.

In addition, it should be noted that the Buck Switch Charger circuit may generally include a switching device, a capacitor device, and an inductor device, and the charging principle of the Buck Switch Charger circuit may be: in the first half of each charging cycle, An adapter coupled to the Buck Switch Charger circuit can charge the capacitive device, the inductive device, and the battery to be charged in the Buck Switch Charger circuit; the Buck Switch Charger circuit during the second half of each charging cycle The capacitive device and the inductive device can charge the battery to be charged. Because the Buck Switch Charger circuit can flexibly convert the voltage output of the adapter to a voltage value of any size, it can ensure the charging flexibility when charging at a small current.

Among them, it should be noted that the Charge Pump Converter circuit can only step down the voltage of the adapter output by half during the step-down conversion. Therefore, when charging the terminal device, it is necessary to change the output voltage and output current of the adapter in real time. Change the output voltage and output current of the Charge Pump Converter circuit. When charging with a large current, the Charge Pump Converter circuit can be used preferentially because of the need to consider the heating problem of the circuit. When charging with a small current, there is a need to change the output voltage of the adapter in real time because there is no need to consider the heating problem. And the problem caused by the output current, the flexibility of charging is poor, and the compatibility with the adapter is poor.

As can be seen from the above and the prior art, the Charge Pump Converter circuit can be applied to a scene with high current charging, which has the characteristics of improving the buck conversion efficiency, shortening the charging duration, and reducing the heating of the circuit; and the Buck Switch Charger circuit can be applied to small Current charging scenarios with high flexibility and high compatibility with adapters. Therefore, when charging the terminal device, in the initial phase of the charging phase (such as the turbulent phase and the pre-charging phase) and the completion phase (such as the second half of the CV phase, that is, the charging voltage is not less than the set voltage threshold, and Charging current is less than The constant current threshold is selected to charge the battery to be charged in the Buck Switch Charger circuit; in other phases of the charging phase (such as the CC phase and the first half of the CV phase, that is, the charging voltage is not less than the set voltage threshold, and the charging current The Charge Pump Converter circuit is selected to charge the battery to be charged, not less than the set current threshold. Therefore, the problem of low voltage drop conversion efficiency, low charging efficiency, long charging time, and relatively high heat generation during high current charging is solved, and the problem of poor compatibility and low flexibility in small current charging is also solved. This embodiment of the present application does not describe this.

Specifically, controlling the adapter to output the dynamic voltage and the dynamic current to the charge pump conversion circuit may include:

The first voltage step can be flexibly set according to actual conditions, for example, can be set to 500mV, 1000mV or 2000mV, etc., as long as the determined initial output voltage of the adapter needs to be satisfied as the output of the Charge Pump Converter circuit is satisfied. The actual demand can be, and will not be described in detail.

It should be noted that, in general, in addition to increasing the voltage output by the adapter to the Charge Pump Converter circuit by the first voltage step (eg, ΔV1), The first sub-voltage step (eg, ΔV11) increases a voltage that the adapter needs to output to the Charge Pump Converter circuit such that the charging current of the battery to be charged is in a set first sub-current range (eg, Ibat01 ≤ Ibat≤Ibat02); afterwards, the voltage that the adapter needs to output to the Charge Pump Converter circuit can be increased according to the set second sub-voltage step (less than the first sub-voltage step, such as ΔV12) Until the charging current of the battery to be charged is in the set second sub-current range (at this time, the second sub-current range may be the current threshold range, such as Ibat1≤Ibat≤Ibat2). Wherein, the Ibat01 is usually small In the Ibat1, the Ibat02 can generally be smaller than the Ibat2, and no further details are provided herein.

That is, the output voltage of the adapter may be first adjusted by using a large voltage step so that the charging current of the battery to be charged is faster to approach the current threshold range, and the charging of the battery to be charged is determined. When the current reaches the current threshold range quickly, the output voltage of the adapter can be adjusted by using a small voltage step, thereby shortening the time to reach the current threshold range and improving the efficiency of reaching the current threshold range, thereby improving the efficiency. Charging efficiency saves charging time.

For example, the output voltage of the adapter may be first increased in steps of 1000 mV. When it is determined that the charging current of the battery to be charged is in the range of 4000 mA to 5000 mA, the adapter may be further increased in steps of 200 mV. The output voltage is determined until the charging current of the battery to be charged is in the range of 4800 mA to 5000 mA. Therefore, when the voltage of the battery to be charged is relatively small, the output voltage of the adapter can be increased step by step according to a larger voltage, and when the voltage of the battery to be charged is large, the voltage can be stepped up according to a smaller voltage. The output voltage of the adapter is increased, the charging efficiency is effectively improved, the charging speed is accelerated, and the charging time is saved.

It should be noted that, when scanning the charging current of the battery to be charged is within a set current threshold range, in addition to being divided into a large voltage step and a small voltage step, other voltage steps may be set. For example, if the voltage is stepped (for example, 500 mV) or the like, the charging current of the battery to be charged can be determined to be within the current threshold range quickly and efficiently, and details are not described herein.

Further, since the charging voltage of the battery to be charged is generally the output voltage Vbat of the Charge Pump Converter circuit connected thereto, the charging current of the battery to be charged may generally be the output current of the Charge Pump Converter circuit connected thereto. Ibat, and because the input voltage Vbus of the Charge Pump Converter circuit can usually be determined by the output voltage of the adapter connected to it and the communication line between the two.

Specifically, assuming that the initial output voltage of the adapter is Vout0, the initial output current of the adapter is Iout0, and the impedance on the line between the adapter and the Charge Pump Converter circuit is R (ie, the data line of the terminal device) Etc.), the initial input voltage of the Charge Pump Converter circuit is Vbus0, and the initial input current of the Charge Pump Converter circuit is Ibus0, then:

Iout0=Ibus0 formula 1;

Vout0=Vbus0+Ibus0*R Equation 2;

Because the Charge Pump Converter circuit has the following features:

Vbus0=(2*Vbat0)/η Equation 3;

Ibus0=(1/2)*Ibat0 Equation 4;

Thus available:

Vout0=(2*Vbat0)/η+((1/2)*Ibat0)*R Equation 5;

Furthermore, since the initial charging current Ibat0 of the battery to be charged may be 0 in the initial state (ie, the moment when the charging circuit is switched), the initial output voltage that the adapter needs to output to the charge pump conversion circuit may be for:

Vout0=(2*Vbat0)/η Equation 6;

Wherein, the Vout0 represents an initial output voltage that the adapter needs to output to the Charge Pump Converter circuit; the Vbat0 represents an output charging voltage of the battery to be charged; and the η represents a voltage conversion of the Charge Pump Converter circuit. effectiveness.

That is, the initial output voltage of the adapter is generally determined according to the initial charging voltage of the battery to be charged and the step-down conversion of the Charge Pump Converter circuit, which is not limited in this embodiment of the present application.

Further, controlling the adapter to output the dynamic voltage and the dynamic current to the charge pump conversion circuit may further include:

The second voltage step can be flexibly set according to actual conditions, and the second voltage step can be generally smaller than the first voltage step, such as 100mV, 200mV, or 500mV, as long as it can be guaranteed. The determined adapter needs to be electrically connected to the Charge Pump Converter The initial output voltage of the road output can meet the actual requirements, and will not be described herein.

In addition, in general, in addition to increasing the voltage output by the adapter to the Charge Pump Converter circuit by the second voltage step (eg, ΔV2), it may be first set according to the The third sub-voltage step (eg, ΔV13) increases a voltage that the adapter needs to output to the Charge Pump Converter circuit such that the charging voltage of the battery to be charged is within a set first sub-voltage range (eg, Vbat01 ≤ Vbat ≤ Vout02); thereafter, the voltage that the adapter needs to output to the Charge Pump Converter circuit may be increased according to a set fourth sub-voltage step (less than the third sub-voltage step, such as V14), Until the charging voltage of the battery to be charged is in the set second sub-voltage range (at this time, the second sub-voltage range may be within the above-mentioned voltage threshold range, such as Vbat1 ≤ Vbat ≤ Vbat2). The Vbat01 may be smaller than the Vbat1, and the Vbat02 may be smaller than the Vbat2, and details are not described herein.

That is, the output voltage of the adapter may be first adjusted by using a large voltage step so that the charging voltage of the battery to be charged is faster to approach the voltage threshold range, and the charging of the battery to be charged is determined. When the voltage reaches the voltage threshold range quickly, the output voltage of the adapter can be adjusted by using a small voltage step, thereby shortening the time to reach the voltage threshold range, improving the efficiency of reaching the voltage threshold range, thereby improving the efficiency. The charging rate saves charging time.

For example, the output voltage of the adapter may be first increased in steps of 500 mV, and when the charging voltage of the battery to be charged is determined to be in the range of 4000 mV to 5000 mV, the adapter may be further increased in steps of 100 mV. The output voltage is determined until the charging voltage of the battery to be charged is in the range of 4800 mV to 5000 mV. Therefore, when the voltage of the battery to be charged is relatively small, the output voltage of the adapter can be increased step by step according to a larger voltage, and when the voltage of the battery to be charged is large, the voltage can be stepped up according to a smaller voltage. The output voltage of the adapter is increased, the charging efficiency is effectively improved, the charging speed is accelerated, and the charging time is saved.

It should be noted that, when scanning whether the charging voltage of the battery to be charged is within a set voltage threshold range, in addition to being divided into a large voltage step and a small voltage step, other voltage steps may be set. For example, if the voltage is stepped (for example, 100 mV), the charging voltage of the battery to be charged can be determined to be within the voltage threshold range quickly and efficiently, and details are not described herein.

Further, the adapter outputs a dynamic voltage and a dynamic current to the charge pump conversion circuit, and further includes:

The third voltage step can be flexibly set according to actual conditions, and the third voltage step can be set to be the same as the second voltage step, such as 100mV, 200mV or 500mV, etc. The second voltage step may be set to be different, as long as the determined initial output voltage of the adapter outputted by the Charge Pump Converter circuit can be ensured to meet the actual requirement, which is not described herein.

It should be noted that, in general, in addition to lowering the voltage output by the adapter to the Charge Pump Converter circuit by the third voltage step (eg, ΔV3), the first setting may be The fifth sub-voltage step (eg, ΔV15) reduces the voltage that the adapter needs to output to the Charge Pump Converter circuit, such that the charging current of the battery to be charged is not greater than a set first current threshold (eg, Ibat03) After that, the voltage that the adapter needs to output to the Charge Pump Converter circuit can be lowered according to the set sixth sub-voltage step (less than the fifth sub-voltage step, such as ΔV15) until the charging is to be charged. The charging current of the battery is not greater than the set second current threshold (in this case, the second current threshold may be the current threshold, such as Ibat3). The Ibat03 is generally smaller than the Ibat3, which is not described in this embodiment of the present application.

That is, the output voltage of the adapter may be first adjusted by using a large voltage step so that the charging current of the battery to be charged is faster to approach the current threshold, and the charging voltage of the battery to be charged is determined. When the current threshold is reached quickly, the output voltage of the adapter can be adjusted by using a small voltage step, thereby shortening the time to reach the current threshold, improving the efficiency of reaching the current threshold, thereby improving the charging efficiency and saving. Charging time.

For example, first, the output voltage of the adapter can be lowered in steps of 100 mV, in determining When the charging current of the battery to be charged is not more than 4000 mA, the output voltage of the adapter may be further reduced in steps of 50 mV until it is determined that the charging current of the battery to be charged is not more than 3500 mA. Therefore, when the voltage of the battery to be charged is relatively small, the output voltage of the adapter can be stepped down according to a larger voltage, and when the voltage of the battery to be charged is large, the step can be stepped down according to a smaller voltage. The output voltage of the adapter effectively improves the charging efficiency, speeds up the charging, and saves charging time.

It should be noted that, when scanning whether the charging current of the battery to be charged is not less than a set current threshold, in addition to being divided into a large voltage step and a small voltage step, other voltage steps may be set. For example, if the voltage is stepped (for example, 80 mV), the charging current of the battery to be charged can be quickly and efficiently determined to be around the current threshold, and no further details are provided herein.

Further, the charging control method may further include:

Controlling the buck conversion circuit to power on if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold And the charge pump conversion circuit is powered down, and controls the adapter to output a fixed voltage and a fixed current to the buck converter circuit to charge the battery to be charged through the buck converter circuit

That is to say, at this time, the battery to be charged can be directly charged by using an existing Buck Switch Charger circuit, that is, the adapter outputs a fixed voltage and a fixed current to the Buck Switch Charger circuit, and the Buck Switch Charger circuit is based on The dynamic voltage and the dynamic current are output to the battery to be charged, and the details are not described herein.

In summary, in the embodiment of the present application, the existing Buck Switch Charger circuit can be used to charge the battery to be charged in the turbulence phase, the pre-charge phase, and the second half of the CV phase. The Charge Pump Converter circuit can be used to charge the battery to be charged during the CC phase of the entire charging and the first half of the CV phase, thereby ensuring high efficiency in charging at high current and flexibility in charging at low current. In addition, it should be noted that in order to further improve the security of the terminal equipment during the charging process, it can also be adopted in the first half of the CC phase. The Buck Switch Charger circuit charges the battery to be charged, and charges the battery to be charged by using a Charge Pump Converter circuit in the latter half of the CC phase, which is not described herein.

It should be noted that, when the adapter is in communication with the device to be terminated (specifically, the rechargeable battery) for the first time (ie, the initial time of the charging process), it may also be based only on the initial charging voltage of the battery to be charged. Control the switching of the charging circuit. If it is determined that the initial charging voltage is greater than the voltage threshold, directly controlling the charge pump conversion circuit to power up and the buck conversion circuit to be powered down; directly determining when the initial charging voltage is not greater than the voltage threshold The buck converter circuit is powered up and the charge pump conversion circuit is powered down. At the next acquisition time, the initial charging current of the battery to be charged may be further collected to further control the switching of the charging circuit, which is not described herein.

Next, as shown in FIG. 4, the specific steps of the charging control method described in the embodiments of the present application are described in detail by way of the following steps.

Step S41, collecting Vbat and Ibat of the battery to be charged.

It should be noted that, when the charging circuit is just connected, the charging current of the battery to be charged may be 0, that is, Ibat is 0; the Vbat of the battery to be charged may be the current voltage of the battery to be charged. Such as 3.5V and so on.

In step S42, it is determined whether the Vbat is not greater than a set voltage threshold Vbat_th.

The voltage threshold value Vbat_th is usually set flexibly according to actual requirements, for example, it can be set to 3.2V, 3.5, or 3.8V, etc., as long as the actual requirements can be met, and details are not described herein.

In step S43, if the Vbat ≤ Vbat_th is determined, it can be stated that the charging phase of the battery to be charged can be a turbulent phase or a pre-charging phase, and then the Buck Switch Charger circuit is powered on.

Step S44, controlling the adapter to output a fixed voltage and a fixed current to the Buck Switch Charger circuit, so that the adapter charges the battery to be charged through the Buck Switch Charger circuit.

Step S45, if the Vbat>Vbat_th is determined, it can be determined that the charging phase of the battery to be charged can be the CC phase (or the second half of the CC phase) or the CV phase, and then the Charge Pump Converter circuit is powered on.

In the embodiment of the present application, the Vbat_th is generally not less than the starting voltage of the CC phase (for example, 3V), then:

When the Vbat_th=3V, if the Vbat>Vbat_th is determined, it can be determined that the charging phase of the battery to be charged is the CC phase or the CV phase, and the Charge Pump Converter circuit can be controlled to be powered on at this time;

When the Vbat_th=3.5V, if the Vbat>Vbat_th is determined, it can be determined that the charging phase of the battery to be charged is the second half phase or the CV phase of the CC phase, and at this time, the Charge Pump Converter circuit can be controlled. Electricity. However, between 3V and 3.5V, the Buck Switch Charger circuit can still be powered on, which is not described here.

Step S46, determining Vout0 of the adapter according to the Vbat of the battery to be charged.

Still taking the above example as an example, the Vout0 of the adapter can be calculated by the foregoing formula 6. At this time, if the buck conversion efficiency η of the Charge Pump Converter circuit is assumed to be 97%, the Vout0=7.22 can be obtained. V (take the Vbat_th = 3.5V as an example).

Step S47, adjusting the output voltage of the adapter based on Vout0 until it is determined that the Ibat satisfies Ibat1≤Ibat≤Ibat2. That is, it is determined to adjust the output voltage of the adapter until it is determined that the charging phase of the battery to be charged enters the later stage of the CC phase.

Still taking the above example as an example, assuming that the first sub-voltage step ΔV1 can be 100 mV and the second sub-voltage step ΔV2 can be 20 mV, the output of the adapter can be gradually increased according to the ΔV1. Voltage, simultaneously detecting the size of the Ibat, if it is detected that the Ibat is in the first current range (such as Ibat01≤Ibat≤Ibat02), then gradually increasing the Vout by ΔV2, and still detecting the size of the Ibat Until it is determined that the Ibat is in the second current range (ie, the current threshold range, such as Ibat1≤Ibat≤Ibat2). The Ibat01 may be smaller than the Ibat1, and the Ibat02 may be smaller than the Ibat2, and details are not described herein.

In addition, it should be noted that ΔV1, ΔV2, Ibat01, Ibat02, Ibat1, and Ibat2 described in the above content can be flexibly set according to actual needs, and in order to ensure the safety of charging, the ΔV1 and the Δ The setting of V2 usually needs to ensure that Ibat ≤ Ibat2, which is not described in detail in the embodiment of the present application.

In addition, it should be noted that, when it is determined that the Ibat is within the current threshold range, it may further be determined that the adapter needs to correspond to the Charge Pump corresponding to any current value within the current threshold range. The first output voltage Vout1 output by the converter circuit.

Step S48, adjusting the output voltage of the adapter based on Vout1 until it is determined that the Vbat satisfies Vbat1≤Vbat≤Vbat2. That is, the output voltage of the adapter is adjusted until it is determined that the charging phase of the battery to be charged has entered the early stage of the CV phase (ie, the first half phase).

Still taking the above example as an example, assuming that the third sub-voltage step ΔV3 can be 20 mV and the fourth sub-voltage step ΔV4 can be 10 mV, the output of the adapter can be gradually increased according to the ΔV3. Voltage, while detecting the size of the Vbat, if it is detected that the Vbat is within the first voltage range (such as Vbat01 ≤ Vbat ≤ Vbat02), the Vout is gradually increased by ΔV4, and the size of the Vbat is still detected. Until it is determined that the Vbat is in the second voltage range (ie, the current threshold range, such as Vbat1 ≤ Vbat ≤ Vbat2). The Vbat01 may be smaller than the Vbat1, and the Vbat02 may be smaller than the Vbat2, and details are not described herein.

In addition, it should be noted that, when it is determined that the Vbat is within the voltage threshold range, it may further be determined that the adapter needs to be in the Charge Pump corresponding to any voltage value within the voltage threshold range. The second output voltage Vout2 output by the converter circuit.

Furthermore, ΔV3, ΔV4, Vbat01, Vbat02, Vbat1, and Vbat2 described in the above may be flexibly set according to actual needs, and in order to ensure the safety of charging, the setting of ΔV3 and the ΔV4 is usually It is also necessary to ensure that Vbat ≤ Vbat2, which is not described in detail in this embodiment of the present application.

In step S49, the output voltage of the adapter is adjusted based on Vout2 until Ibat1≤Ibat3 is determined. That is, it is determined to adjust the output voltage of the adapter until it is determined that the charging phase of the battery to be charged enters the later stage of the CV phase (ie, the second half phase).

Still taking the above example as an example, assuming that the fifth sub-voltage step ΔV5 can be 20 mV and the sixth sub-voltage step ΔV4 can be 10 mV, the output of the adapter can be gradually decreased according to the ΔV5. Voltage, while detecting the size of the Ibat, if it is detected that the Ibat is not greater than the first current threshold (such as Ibat ≤ Ibat03), the Vout is gradually decreased by ΔV6, and the size of the Ibat is still detected until Determining that the Ibat is not greater than a second current threshold (ie, the current threshold, such as Ibat ≤Ibat3). The Ibat03 is generally larger than the Ibat3, and no further details are provided herein.

Further, it is assumed that the charging control device can be an integrated device in the terminal device, and the structure of the charging system described in the embodiment of the present application can be generally as shown in FIG. 5 , which is the first described in the embodiment of the present application. A schematic diagram of a specific structure of a charging system. Specifically, as shown in FIG. 5, the charging system may specifically include the following modules:

The AC-DC adapter 51 and the terminal device 52, wherein the terminal device 52 can generally include a Buck Switch Charger circuit module 521 (ie, a Buck converter), a Charge Pump Converter circuit module 522 (ie, a Charge Pump converter), and a charging device. Control module 523 (which may specifically include a processor and a transceiver) and battery 524. Among them, the main part of achieving charging is the Buck Switch Charger circuit module 521 and the Charge Pump Converter circuit module 522. The charging control module 523 (specifically, its internal processor) may be responsible for controlling the switching between the Buck Switch Charger circuit module 521 and the Charge Pump Converter circuit module 522, and may be responsible for the terminal device 52 and the AC-DC adapter 51. Communication between. Of course, it should be noted that the charging control module 523 (specifically, its internal transceiver) may also be responsible for translating the communication information between the terminal device 52 and the AC-DC adapter 51.

Similarly, assuming that the charging control device can be an integrated device in the adapter, the structure of the charging system described in the embodiment of the present application can be generally as shown in FIG. 6, which is described in the embodiment of the present application. A schematic diagram of the specific structure of the charging system. Specifically, as shown in FIG. 6, the charging system may specifically include:

An AC-DC adapter 61, a terminal device 62, wherein the AC-DC adapter 61 can generally include a charging control module 611 (specifically including a processor and a transceiver); the terminal device 62 can generally include a Buck Switch Charger circuit module 621 (that is, a Buck converter), a Charge Pump Converter circuit module 622 (that is, a Charge Pump converter), and a battery 623. Among them, the main part of achieving charging is the Buck Switch Charger circuit module 621 and the Charge Pump Converter circuit module 622. The charging control module 611 (specifically, its internal processor) may be responsible for controlling the switching between the Buck Switch Charger circuit module 621 and the Charge Pump Converter circuit module 622, and may be responsible for the relationship between the adapter 61 and the terminal device 62. Communication. Of course, it should be noted that the charging control module 611 (specifically, its internal transceiver) may also be responsible for translating the communication information between the adapter 61 and the terminal device 62.

Further, similarly, the charging control device may be a stand-alone device independent of the adapter and the terminal device, and the structure of the charging system described in the embodiment of the present application may be generally as shown in FIG. It is a schematic structural diagram of the charging system described in the embodiment of the present application. Specifically, as shown in FIG. 7, the charging system may specifically include:

An AC-DC adapter 71, a terminal device 72, and a charging control device 73, wherein the terminal device 72 can generally include a Buck Switch Charger circuit module 721 (ie, a Buck converter), and a Charge Pump Converter circuit module 722 (ie, a Charge Pump) Converter) and battery 723. Among them, the main part of achieving charging is the Buck Switch Charger circuit module 721 and the Charge Pump Converter circuit module 722. The charging control device 73 (specifically, its internal processor) may be responsible for controlling the switching between the Buck Switch Charger circuit module 721 and the Charge Pump Converter circuit module 722, and may be responsible for the charging control device 73 and the AC. - DC adapter 71, or communication between said charging control device 73 and said terminal device 72. Of course, it should be noted that the charging control device 73 (specifically, its internal transceiver) may also be responsible for translating the communication information between the AC-DC adapter 71 and the terminal device 72.

Embodiment 1 of the present application provides a charging control method, which can collect an initial charging voltage of an battery to be charged and an initial charging current; and if it is determined that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a predetermined current threshold, controlling the charge pump conversion circuit to be powered up and the buck conversion circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit for conversion by the charge pump The circuit charges the battery to be charged. Compared with the prior art, since the charge pump conversion circuit is used in charging at a large current, the step-down conversion efficiency of charging is effectively improved, and the charging time is shortened; and, since the charge pump conversion circuit does not contain heat energy easily The inductive device can further solve the heating problem of the circuit during charging.

Embodiment 2:

Based on the same application concept as the embodiment of the present application, the second embodiment of the present application provides a charging control device, as shown in FIG. 8 , which is a schematic structural diagram of the charging control device according to the second embodiment of the present application. Specifically, as shown in FIG. 8, the charging control apparatus may include:

The collecting module 81 can be configured to collect an initial charging voltage of the battery to be charged and an initial charging current;

The control module 82 is configured to determine that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold, and if so, control the charge pump conversion circuit to power up and the buck conversion circuit to be powered down And controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to charge the battery to be charged through the charge pump conversion circuit.

Specifically, the control module 82 is specifically configured to determine, according to the initial charging voltage, an initial output voltage that the adapter needs to output to the charge pump conversion circuit; and, according to the initial output voltage, according to the setting The predetermined first voltage step increases the voltage that the adapter needs to output to the charge pump conversion circuit until it is determined that the charging current of the battery to be charged is within a set current threshold range.

Specifically, the control module 82 is specifically configured to determine an initial output voltage that the adapter needs to output to the charge pump conversion circuit by using the following formula:

Vout0=(2*Vbat0)/η;

Specifically, the control module 82 is further specifically configured to determine, according to any current value within the current threshold range, a first output voltage that the adapter needs to output to the charge pump conversion circuit; And increasing, according to the first output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set second voltage step, until determining that the charging voltage of the battery to be charged is at a set value Within the voltage threshold range.

Specifically, the control module 82 is further specifically configured to determine, according to any voltage value within the voltage threshold range, a second output voltage that the adapter needs to output to the charge pump conversion circuit; Decreasing according to the set third voltage step based on the second output voltage The adapter requires a voltage output to the charge pump switching circuit until the charging current of the battery to be charged is not greater than the current threshold.

Specifically, the control module 82 is further configured to: if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold Controlling the buck converter circuit to power up and the charge pump conversion circuit to be powered down, and outputting a fixed voltage and a fixed current to the buck converter circuit to be charged to the buck converter circuit Charging batteries.

It should be noted that the charging control device may be integrated as an integrated device in the adapter or the terminal device, or as a separate device independent of the adapter and the terminal device.

Embodiment 2 of the present application provides a charging control apparatus, including an acquisition module for collecting an initial charging voltage of an battery to be charged and an initial charging current, and for determining that the initial charging voltage is greater than a set voltage threshold, and The initial charging current is greater than the set current threshold, then controlling the charge pump switching circuit to power up and the buck converting circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump switching circuit to pass the A control module that charges the charge pump switching circuit to charge the battery to be charged. Compared with the prior art, since a high-efficiency charge pump conversion circuit is used in charging a large current, the buck conversion efficiency is effectively improved, the charging speed is accelerated, and the charging time is shortened; and, due to the charge pump conversion circuit It does not contain an inductive device that is prone to generate thermal energy, and thus can further solve the problem of heat generation of the circuit during charging.

Embodiment 3:

A third embodiment of the present invention provides a computing device, as shown in FIG. 9 , which is a schematic structural diagram of a computing device in the embodiment of the present application. The computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (PDA), or the like. Specifically, the computing device in the embodiment of the present application may include a central processing unit (CPU) 901, a memory 902, an input device 903, an output device 904, and the like. The input device 903 may include a keyboard, a mouse, a touch screen, and the like. , output device 904 A display device such as a liquid crystal display (LCD), a cathode ray tube (CRT), or the like can be included.

Memory 902 can include read only memory (ROM) and random access memory (RAM) and provides program instructions and data stored in memory 902 to central processor 901. In the embodiment of the present application, the memory 902 can be used to store a program of the charging control method.

The central processing unit 901 can be configured to execute the program instruction stored in the memory 902, and the central processing unit 901 can be configured to: obtain an initial charging voltage of the battery to be charged and an initial charging current; and determine that the initial charging voltage is greater than the set voltage. a threshold value, and the initial charging current is greater than a set current threshold; if yes, controlling the charge pump conversion circuit to power up and the buck conversion circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit And charging the battery to be charged by the charge pump conversion circuit.

Embodiment 4:

Embodiment 4 of the present application provides a computer storage medium for storing computer program instructions for use in the above computing device, comprising a program for executing the above charging control method.

The computer storage medium can be any available media or data storage device accessible by a computer, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memories (for example, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, apparatus (device), or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of a method, apparatus, and computer program product according to embodiments of the present application. It should be understood that the flowchart can be implemented by computer program instructions and/or Or each of the processes and/or blocks in the block diagrams, and the combinations of the flows and/or blocks in the flowcharts and/or block diagrams. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the present application has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A charging control method, comprising:

Collecting an initial charging voltage of the battery to be charged and an initial charging current;

Determining that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold;

If so, controlling the charge pump conversion circuit to power up and the buck conversion circuit to be powered down, and controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to pass the charge pump conversion circuit to the battery to be charged Charging.
The charging control method according to claim 1, wherein controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump switching circuit comprises:

Determining, according to the initial charging voltage, an initial output voltage that the adapter needs to output to the charge pump conversion circuit;

And increasing, according to the initial output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set first voltage step, until determining that the charging current of the battery to be charged is at a set current Within the threshold range.
The charging control method according to claim 2, wherein determining an initial output voltage that the adapter needs to output to the charge pump converting circuit according to the initial charging voltage is obtained by the following formula:

Vout0=(2*Vbat0)/η;

Wherein, the Vout0 represents an initial output voltage that the adapter needs to output to the charge pump conversion circuit; the Vbat0 represents an initial charging voltage of the battery to be charged; and the η represents a voltage conversion of the charge pump conversion circuit effectiveness.
The charging control method according to claim 2, wherein controlling the adapter to output the dynamic voltage and the dynamic current to the charge pump switching circuit further comprises:

Determining a first output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any current value within the current threshold range;

And increasing, according to the first output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set second voltage step, until determining that the charging voltage of the battery to be charged is at a set value Within the voltage threshold range.
The charging control method according to claim 4, wherein the adapter outputs a dynamic voltage and a dynamic current to the charge pump conversion circuit, and further includes:

Determining a second output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any voltage value within the voltage threshold range;

Reducing, according to the second output voltage, a voltage that the adapter needs to output to the charge pump conversion circuit according to the set third voltage step until the charging current of the battery to be charged is not greater than the current threshold .
The charging control method according to claim 1, wherein the charging control method further comprises:

Controlling the buck conversion circuit to power on if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold And the charge pump conversion circuit is powered down, and the adapter is controlled to output a fixed voltage and a fixed current to the buck converter circuit to charge the battery to be charged through the buck converter circuit.
A charging control device, comprising:

An acquisition module, configured to collect an initial charging voltage of the battery to be charged and an initial charging current;

a control module, configured to determine that the initial charging voltage is greater than a set voltage threshold, and the initial charging current is greater than a set current threshold, and if so, control the power pump conversion circuit to power up and the buck conversion circuit to be powered down, And controlling the adapter to output a dynamic voltage and a dynamic current to the charge pump conversion circuit to charge the battery to be charged through the charge pump conversion circuit.
A charging control device according to claim 7, wherein

The control module is specifically configured to determine, according to the initial charging voltage, an initial output voltage that the adapter needs to output to the charge pump conversion circuit; and, according to the initial output voltage, according to the first setting Voltage stepping increases the adapter needs to switch to the charge pump circuit The output voltage is determined until it is determined that the charging current of the battery to be charged is within a set current threshold range.
A charging control device according to claim 8, wherein

The control module is specifically configured to determine an initial output voltage that the adapter needs to output to the charge pump conversion circuit by using the following formula:

Vout0=(2*Vbat0)/η;

Wherein, the Vout0 represents an initial output voltage that the adapter needs to output to the charge pump conversion circuit; the Vbat0 represents an initial charging voltage of the battery to be charged; and the η represents a voltage conversion of the charge pump conversion circuit effectiveness.
A charging control device according to claim 8, wherein

The control module is further configured to determine a first output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any current value within the current threshold range; An output voltage is used as a reference, and the voltage that the adapter needs to output to the charge pump conversion circuit is increased according to the set second voltage step until it is determined that the charging voltage of the battery to be charged is within a set voltage threshold range. .
A charging control device according to claim 10, wherein

The control module is further configured to determine a second output voltage that the adapter needs to output to the charge pump conversion circuit corresponding to any voltage value within the voltage threshold range; The two output voltages are referenced, and the voltage that the adapter needs to output to the charge pump conversion circuit is decreased according to the set third voltage step until the charging current of the battery to be charged is not greater than the current threshold.
A charging control device according to claim 7, wherein

The control module is further configured to: if it is determined that the initial charging voltage is not greater than the voltage threshold, or the initial charging voltage is greater than the voltage threshold, and the initial current is not greater than the current threshold, then the control The buck converter circuit is powered up and the charge pump conversion circuit is powered down, and a fixed voltage and a fixed current are output to the buck converter circuit to charge the battery to be charged through the buck converter circuit.
A computing device, including a memory and a processor, wherein:

The memory is configured to store program instructions;

The processor is configured to invoke a program instruction stored in the memory, and execute the charging control method according to any one of claims 1 to 6 according to the obtained program.
A computer storage medium, characterized in that the computer storage medium stores computer executable instructions for causing the computer to execute the charging control method according to any one of claims 1 to 6.