CN111262299B - Charger output voltage adjusting method and device, intelligent terminal and medium - Google Patents
Charger output voltage adjusting method and device, intelligent terminal and medium Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charger output voltage adjusting method, a charger output voltage adjusting device, an intelligent terminal and a medium. The method comprises the following steps: acquiring power supply overload information sent by a charger, and acquiring the type of the charger based on the power supply overload information; if the charger type is an adjustable voltage output type, acquiring initial output voltage of the charger; determining an initial output current based on the initial output voltage; when the initial output current is smaller than the rated output current, determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage; if the charging chip is in a step-down working mode and the actual output power of the charger is smaller than the current rated output power, step-down processing is carried out on the initial output voltage; when the initial output current is not less than the rated output current, the initial output voltage is subjected to boosting treatment, so that the output voltage of the charger is adjusted along with the change of the rated output current, the charging efficiency is improved to be higher, the electric quantity loss of the charger is reduced, and the heating problem of the charger is solved.
Description
[ field of technology ]
The invention relates to the technical field of chargers, in particular to a charger output voltage adjusting method, a device, an intelligent terminal and a medium.
[ background Art ]
Intelligent electronic devices have been put into the life of people, and in order to save the charging time of the electronic devices, the fast-paced life style of people is satisfied, and most electronic devices are charged by adopting a PD (Power delivery) charger. The PD charger includes two types, one of which is to output a fixed voltage and the other of which is to output an adjustable voltage, the minimum amplitude being adjusted to 20mV.
In order to ensure the safety of the PD charger during charging, the method adopted at present is to select the maximum power of the PD charger as the output power and then ensure that the output voltage is within a safe range. For example, the maximum power of the PD charger used by the current pen-powered (NoteBook Computer ) is 45W, 45W is selected as the output power, and then the voltage gear is set to 15V/3A so as to ensure that the output voltage is in a safe range. However, the battery voltage range of the battery charger is generally 6V to 8.8V, and if the output voltage of the PD charger is fixedly set to 15V, the charging efficiency is low and the PD charger heats up due to the large difference between the output voltage 15V and the battery voltage.
In view of the foregoing, it is necessary to provide a novel method, device, intelligent terminal and medium for regulating output voltage of charger to improve the above-mentioned problems.
[ invention ]
The invention aims to provide a charger output voltage regulating method, device, intelligent terminal and medium which can regulate the output voltage of a charger according to the change of the voltage of a battery so that the output voltage of the charger and the battery are closer to each other to improve the charging efficiency and improve the heating of the charger.
In order to achieve the above object, the present invention provides a charger output voltage adjusting method, comprising the steps of: acquiring power supply overload information sent by a charger, and acquiring the type of the charger based on the power supply overload information; if the charger type is an adjustable voltage output type, acquiring initial output voltage of the charger; determining an initial output current based on the initial output voltage; when the initial output current is smaller than the rated output current, determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage; if the charging chip is in a step-down working mode and the actual output power of the charger is smaller than the current rated output power, step-down processing is carried out on the initial output voltage; and when the initial output current is not smaller than the rated output current, performing boosting processing on the initial output voltage.
In a preferred embodiment, the current battery voltage after the step-down process is obtained; obtaining a target output voltage obtained after the initial output voltage is subjected to step-down treatment; comparing the target output voltage with the current battery voltage after the step-down treatment; when the difference between the target output voltage and the current battery voltage after the step-down processing is not within a preset voltage difference range, returning the target output voltage as an initial output voltage to the step of determining an initial output current based on the initial output voltage; and charging according to the target output voltage until the difference value between the target output voltage and the current battery voltage is within a preset voltage difference range.
In a preferred embodiment, the current battery voltage after the boosting process is obtained; obtaining an effective output voltage obtained after boosting the initial output voltage; comparing the effective output voltage with the current battery voltage after the boosting treatment; when the difference between the effective output voltage and the current battery voltage after the boosting processing is not within a preset voltage difference range, returning the effective output voltage as an initial output voltage to the step of determining an initial output current based on the initial output voltage; and charging according to the effective output voltage until the difference value between the effective output voltage and the current battery voltage after the boosting processing is within a preset voltage difference range.
In a preferred embodiment, before the obtaining of the charger type based on the power supply overload information, the charger output voltage adjusting method further includes: obtaining a battery voltage, and multiplying the battery voltage by a rated voltage preset value to obtain a rated output voltage; a rated output current is determined based on the rated output voltage.
In a preferred embodiment, the determining whether the charging chip is in the step-down operation mode based on the actual preprocessing voltage includes: obtaining an actual output voltage, and subtracting a voltage pretreatment value from the actual output voltage to obtain an actual pretreatment voltage; and when the actual pretreatment voltage is larger than the rated output voltage, determining that the charging chip is in a step-down working mode.
In a preferred embodiment, the charger output voltage adjustment method further includes a first preset charger voltage, a second preset charger voltage, and a third preset charger voltage, the first preset charger voltage being less than the second preset charger voltage and less than the third preset charger voltage; after the charger type is acquired based on the power supply overload information, the charger output voltage adjusting method further comprises the following steps: if the charger type is a fixed voltage output type, acquiring a first preset charger voltage and a first output power; determining a first output current according to the first preset charger voltage and the first output power; when the first output current is equal to the rated output current, determining whether the charging chip is in a step-down working mode or not based on the first preset charger voltage; if the voltage is in the step-down working mode, acquiring a second preset charger voltage and a second output power; determining a second output current according to the second preset charger voltage and the second output power; comparing the second output current with the rated output current, and acquiring a third preset charger voltage and a third output power when the second output current is equal to the rated output current; determining a third output current according to the third preset charger voltage and the third output power; obtaining third preprocessing power by multiplying the third output power by an output power preset value; comparing the third output current with the rated output current, and executing the step of acquiring the second preset charger voltage and the second output power until the charging is finished when the third output current is smaller than the rated output current and the third pretreatment power is smaller than the third maximum output power corresponding to the third preset charger voltage.
In a preferred embodiment, the determining, based on the first preset charger voltage, whether the charging chip is in the step-down operation mode includes: obtaining rated output voltage, and comparing the rated output voltage with the first preset charger voltage; and when the rated output voltage is larger than the first preset charger voltage, the charging chip is in a step-down working mode.
The invention also provides a charger output voltage adjusting device, comprising: the charger type acquisition module is used for acquiring power supply overload information sent by the charger and acquiring the type of the charger based on the power supply overload information; the initial output voltage acquisition module is used for acquiring the initial output voltage of the charger if the type of the charger is an adjustable voltage output type; an initial output current determination module for determining an initial output current based on the initial output voltage; the step-down working mode judging module is used for determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage when the initial output current is smaller than the rated output current; the voltage reduction processing module is used for carrying out voltage reduction processing on the initial output voltage if the charging chip is in a voltage reduction working mode and the actual output power of the charger is smaller than the current rated output power; and the boosting processing module is used for boosting the initial output voltage when the initial output current is not smaller than the rated output current.
The invention also provides an intelligent terminal, which comprises: one or more processors; a memory for storing one or more programs; the one or more programs are executed by the one or more processors to cause the one or more processors to implement the charger output voltage regulation method of any of the above embodiments.
The invention also provides a computer readable storage medium storing a computer program which when executed by a processor performs the steps of any of the methods described above.
Compared with the prior art, the method and the device for obtaining the power supply overload information provided by the invention have the advantages that the power supply overload information sent by the charger is obtained, the charger type is obtained based on the power supply overload information, when the charger type is the adjustable voltage output type, the initial output voltage is obtained, then the initial output current is determined according to the initial output voltage, when the initial output current is smaller than the rated output current, whether the charging chip in the charger works in the step-down working mode is determined according to the actual preprocessing voltage, so that the charging efficiency is improved. Comparing the actual output power of the charger with the rated output power when the charging chip is determined to work in the step-down working mode, and carrying out step-down processing on the initial output voltage when the actual output power is smaller than the rated output power; when the initial output current is not smaller than the rated output current, the initial output voltage is subjected to boosting treatment, so that the output voltage of the charger is regulated along with the change of the rated output current, and the rated output current is changed along with the change of the battery voltage, namely the change of the output voltage of the charger along with the change of the battery voltage is realized, the output voltage of the charger and the battery voltage are always in a close state, the charging efficiency is improved, the electric quantity loss of the charger is reduced, and the heating problem of the charger is improved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for regulating output voltage of a charger according to the present invention;
FIG. 2 is a flowchart showing step S15 in FIG. 1;
FIG. 3 is a flowchart showing step S16 in FIG. 1;
FIG. 4 is a flowchart showing step S11 in FIG. 1;
FIG. 5 is a flowchart showing step S14 in FIG. 1;
FIG. 6 is a flowchart showing step S23 in FIG. 1;
FIG. 7 is a schematic block diagram of a charger output voltage regulator device provided by the present invention;
fig. 8 is a schematic block diagram of an intelligent terminal provided by the invention.
[ detailed description ] of the invention
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
As shown in fig. 1, fig. 1 is a flowchart of a method for adjusting output voltage of a charger according to the present invention. The charger output voltage regulating method provided by the invention is controlled by a system on chip or an embedded controller in the intelligent electronic equipment, and the intelligent electronic equipment in the embodiment comprises but is not limited to a pen-type electric device (notebook computer), an intelligent mobile phone and a tablet computer. The charger output voltage adjusting method specifically comprises the following steps:
S11: and acquiring power supply overload information sent by the charger, and acquiring the type of the charger based on the power supply overload information.
The power supply overload information refers to information for displaying whether the charger is normal or not. In this embodiment, when the ac voltage detection signal in the charger is at a high level, the power supply overload information is generated.
Specifically, a system on chip or an embedded control system on the intelligent electronic device acquires power supply overload information sent by the charger to verify that the charger is normal, and then acquires the type of the charger sent by the charger. The charger types in the present embodiment include an adjustable voltage output type and a fixed voltage output type. Wherein the adjustable voltage output type refers to that the voltage output by the charger is adjustable. The fixed voltage output type means that the voltage output from the charger is fixed.
S12: if the charger type is an adjustable voltage output type, the initial output voltage of the charger is obtained.
Wherein the initial output voltage refers to an initialized voltage value that the system on chip or the embedded controller requires the charger to output. Taking pen power as an example, the initial output voltage in this embodiment is set to 5V.
S13: an initial output current is determined based on the initial output voltage.
Specifically, after the charger type is determined to be the adjustable voltage output type, initial output voltage sent by the charger is obtained, and corresponding initial output power is obtained according to the initial output voltage. Then, the initial output voltage and the initial output power are calculated by a p=ui power calculation formula to obtain an initial output current. The initial output power refers to a power value obtained according to the initial output voltage and a load of the intelligent electronic device. Taking the pen power as an example, the initial output voltage in this embodiment is set to 5V, and the initial output power is 5V and the power value calculated by the load in the pen power.
S14: when the initial output current is smaller than the rated output current, determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage.
The rated output current refers to the rated output current corresponding to the battery on the intelligent electronic equipment. The actual preprocessing voltage refers to the actual output voltage of the charger, namely the voltage obtained by preprocessing the initial output voltage. The method for preprocessing the initial output voltage in this embodiment is that the voltage is obtained by V 0 ＝V BUS -0.2 calculation formula for calculating the initial output voltage. Wherein V is 0 Refers to the actual pretreatment voltage, V BUS Refers to the initial output voltage.
Specifically, after obtaining an initial output current, comparing the initial output current with a rated output current, obtaining an actual preprocessing voltage when the initial output current is smaller than the rated output current, and determining that a charging chip in the intelligent electronic equipment works in a step-down working mode when the actual preprocessing voltage is larger than the rated output voltage. Wherein the rated output voltage refers to the battery voltage V in the intelligent electronic equipment BAT By formula V Forehead (forehead) ＝V BAT X 1.2 calculated voltage value. The above-mentioned treatment of the battery voltage can prevent the voltage value of the battery from continuously changing and keep the voltage stable.
S15: if the charging chip is in a step-down working mode and the actual output power of the charger is smaller than the current rated output power, step-down processing is carried out on the initial output voltage.
The actual output power refers to a power value obtained by the actual preprocessing voltage and a load in the intelligent electronic device through a power calculation formula. In order to improve the comparison result between the actual output power and the rated output power, the embodiment needs to pass through the formula P after obtaining the actual output power Real world ＝P BUS X 1.1 processes the actual output power.
The current rated output power refers to actual Pretreatment voltage V 0 And rated output current I DPM By formula P Frontal BUS ＝V 0 ×I DPM And calculating the obtained power value.
Specifically, if it is determined that the charging chip works in the step-down working mode, the actual output power of the charger is compared with the current rated output power, and when the actual output power is smaller than the current rated output power, the initial output voltage output by the charger is indicated to be too large, and a preset step-down value needs to be subtracted from the initial output voltage to complete step-down processing of the initial output voltage. The step-down value refers to a voltage value that decreases the initial output voltage.
The initial output voltage is subjected to step-down treatment, so that the output voltage of the charger is continuously adjusted along with the change of rated output current, the output voltage of the charger is ensured to be not greatly different from the voltage of a battery in the intelligent electronic equipment, and the charging efficiency is improved.
S16: and when the initial output current is not smaller than the rated output current, performing boosting treatment on the initial output voltage.
Specifically, when the initial output current is not smaller than the rated output current, the initial output voltage is excessively small, and the initial output voltage needs to be added with a preset boost value to complete the boost processing of the initial output voltage. The step-up value refers to a voltage value that steps up the initial output voltage.
The initial output voltage is boosted, so that the output voltage of the charger is continuously adjusted along with the change of rated output current, the output voltage of the charger is ensured to be not greatly different from the battery voltage in the intelligent electronic equipment, and the charging efficiency is improved.
And S11-S16, acquiring initial output voltage and initial output power by acquiring power supply overload information sent by a charger and acquiring a charger type based on the power supply overload information, and determining initial output current when the charger type is an adjustable voltage output type. And comparing the initial output current with the rated output current, and determining whether the charger works in a step-down working mode according to the actual preprocessing voltage when the initial output current is smaller than the rated output current so as to improve the charging efficiency. Comparing the actual output power of the charger with the rated output power when the charger is determined to work in a step-down working mode, and carrying out step-down processing on the initial output voltage when the actual output power is smaller than the rated output power; when the initial output current is not smaller than the rated output current, the initial output voltage is subjected to boosting treatment, so that the output voltage of the charger is regulated along with the change of the rated output current, and the rated output current is changed along with the change of the battery voltage, namely, the change of the output voltage of the charger along with the change of the battery voltage is realized, when the output voltage of the charger is closer to the battery voltage, the charging efficiency is higher, the electric quantity loss of the charger is reduced, and the heating problem of the charger is improved.
In one embodiment, as shown in fig. 2, in step S15, after the step-down processing is performed on the initial output voltage, the method for adjusting the output voltage of the charger further includes:
s151: and obtaining the current battery voltage after the step-down treatment.
S152: and obtaining a target output voltage obtained after the initial output voltage is subjected to step-down treatment.
S153: and comparing the target output voltage with the current battery voltage after the step-down treatment.
S154: and when the difference value between the target output voltage and the current battery voltage after the step-down processing is not in the preset voltage difference range, returning the target output voltage as the initial output voltage to the step of determining the initial output current based on the initial output voltage.
S155: and charging according to the target output voltage until the difference value between the target output voltage and the current battery voltage is within a preset voltage difference range.
The target output voltage refers to a voltage value of the initial output voltage after the step-down process.
Step 151-step 155, by obtaining the current battery voltage after the step-down processing and the target output voltage, and comparing the current battery voltage and the target output voltage, when the difference between the target output voltage and the current battery voltage after the step-down processing is not within the preset voltage difference range, the output voltage of the charger is indicated to be too large, that is, the target output voltage needs to be used as the initial output voltage, the step of determining the initial output current based on the initial output voltage is continuously executed until the difference between the target output voltage and the current battery voltage is within the preset voltage difference range, charging is performed according to the target output voltage, so that the output voltage of the charger is gradually adjusted, the condition that the output voltage of the charger and the battery voltage are always close is ensured, and the charging efficiency is improved.
In one embodiment, as shown in fig. 3, after the step-up processing is performed on the initial output voltage in step S16, the method for adjusting the output voltage of the charger further includes:
s161: and acquiring the current battery voltage after the boosting treatment.
S162: and obtaining an effective output voltage obtained after boosting the initial output voltage.
S163: the effective output voltage is compared with the current battery voltage after the boosting process.
S164: and if the difference between the effective output voltage and the current battery voltage after the boosting processing is not within the preset voltage difference range, returning the effective output voltage as the initial output voltage to the step of determining the initial output current based on the initial output voltage.
S165: and charging according to the effective output voltage until the difference between the effective output voltage and the current battery voltage after the boosting treatment is within a preset voltage difference range.
The effective output voltage refers to a voltage value of the initial output voltage after boosting.
Step 161-step 165, by acquiring the current battery voltage after the boosting process and the effective output voltage, and comparing the current battery voltage and the effective output voltage, if the difference between the effective output voltage and the current battery voltage after the boosting process is not within the preset voltage difference range, the output voltage of the charger is indicated to be too small, and the output voltage needs to be continuously increased, that is, the effective output voltage needs to be used as the initial output voltage, the step of determining the initial output current based on the initial output voltage is continuously executed until the difference between the effective output voltage and the current battery voltage is within the preset voltage difference range, the charging is performed according to the effective output voltage, so that the gradual adjustment of the output voltage of the charger is realized, the condition that the output voltage of the charger is always close to the battery voltage is ensured, and the charging efficiency is improved.
In one embodiment, as shown in fig. 4, before the charger type is acquired based on the power supply overload information in step S11, the charger output voltage adjusting method further includes the steps of:
s111: and obtaining the battery voltage, and multiplying the battery voltage by a rated voltage preset value to obtain the rated output voltage.
Specifically, after the battery voltage is obtained, the rated output voltage is obtained by multiplying the battery voltage by the rated voltage preset value, that is, by the formula V Forehead (forehead) ＝V BAT X 1.2 vs. cell voltage V BAT Processing to obtain rated output voltage V Forehead (forehead) . The rated voltage preset value refers to a preset value for calculating the battery voltage to obtain the rated voltage, and in this embodiment, the rated voltage preset value is 1.2. The processing process can keep the voltage value of the battery stable, and prevent the voltage value from continuously changing to influence the accuracy of subsequent data processing.
S112: the rated output current is determined based on the rated output voltage.
Specifically, after the rated output voltage is obtained, the voltage is obtained by firstAnd the power calculation formula calculates the rated output voltage U and the load R of the intelligent electronic equipment to obtain rated output power P. The rated output power refers to a power value calculated by rated output voltage and a load of the intelligent electronic equipment. Then, by- >And the current calculation formula calculates the rated output voltage and the rated output power to obtain the rated output current I.
In one embodiment, as shown in fig. 5, in step S14, it is determined whether the charging chip is in a step-down operation mode based on the actual preprocessing voltage, and the method specifically includes the following steps:
s141: the actual output voltage is obtained by subtracting the voltage pretreatment value from the actual output voltage.
Specifically, after the actual output voltage is obtained, the actual pre-processing voltage is obtained by subtracting the voltage pre-processing value from the actual output voltage, i.e., by the formula V 0 ＝V BUS -0.2 vs. actual output voltage V BUS Processing to obtain actual pretreatment voltage V 0 . The voltage preprocessing value refers to a preset value for calculating an actual output voltage to obtain an actual preprocessing voltage, and in this embodiment, the voltage and the processing value are 0.2. The processing procedure can improve the precision of the charging chip.
S142: and when the actual pretreatment voltage is larger than the rated output voltage, determining that the charging chip is in a step-down working mode.
Specifically, when the actual preprocessing voltage is greater than the rated output voltage, the charging chip is determined to work in a step-down working mode so as to improve the charging efficiency.
In an embodiment, if the charger type is a fixed voltage output type, the method further comprises: the first preset charger voltage, the second preset charger voltage and the third preset charger voltage, the first preset charger voltage being less than the second preset charger voltage and the third preset charger voltage. The first preset charger voltage refers to a voltage value preset by the system on chip or the embedded controller and required to be output by the charger for the first time; the second preset charger voltage refers to a voltage value preset by the system on chip or the embedded controller and required to be output for the second time by the charger; the third preset charger voltage refers to a voltage value preset by the system on chip or the embedded controller and required to be output by the charger for the third time. As shown in fig. 1, in step S11, after acquiring the charger type based on the power supply overload information, the charger output voltage adjusting method further includes:
s21: and if the charger type is a fixed voltage output type, acquiring a first preset charger voltage and a first output power.
The first output power refers to a power value obtained by a first preset charger voltage and a load of the intelligent electronic device. Taking pen power as an example, the first preset charger voltage in this embodiment is set to 9V.
S22: the first output current is determined based on the first preset charger voltage and the first output power.
Specifically, after the first preset charger voltage and the first output power are obtained, the first preset charger voltage and the first output power are calculated according to a p=ui power calculation formula, so as to obtain a first output current. The first output current refers to a current value calculated according to a first preset charger voltage and a first output power.
S23: and when the first output current is equal to the rated output current, determining whether the charging chip is in a step-down working mode or not based on the first preset charger voltage.
Specifically, after the first output current is obtained, the first output current is compared with the rated output current, if the first output current is equal to the rated output current, the first preset charger voltage is compared with the rated output voltage, and if the first preset charger voltage is smaller than the rated output voltage, the charging chip is determined to work in a step-down working mode.
S24: and if the voltage is in the step-down working mode, acquiring a second preset charger voltage and a second output power.
Specifically, if the charging chip works in the step-down working mode, a second preset charger voltage and a second output power are obtained. The second output power refers to a power value obtained by a second preset charger voltage and a load of the intelligent electronic device. Taking pen power as an example, the second preset charger voltage in this embodiment is set to 12V. The charging chip works in a step-down working mode, so that the charging efficiency can be improved.
S25: and determining a second output current according to the second preset charger voltage and the second output power.
Specifically, after the second preset charger voltage and the second output power are obtained, the second preset charger voltage and the second output power are calculated according to a p=ui power calculation formula, so as to obtain a second output current. The second output current is a current value calculated according to a second preset charger voltage and a second output power.
S26: comparing the second output current with the rated output current, and acquiring a third preset charger voltage and a third output power when the second output current is equal to the rated output current.
The third preset charger voltage refers to a voltage value preset by the system on chip or the embedded controller and required to be output by the charger for the third time. The third output power refers to a power value obtained by a third preset charger voltage and a load of the intelligent electronic device. Taking pen power as an example, the second preset charger voltage in this embodiment is set to 15V.
Further, when the second output current is not equal to the rated output current, the following steps are performed:
1. and determining whether the charging chip is in a step-down working mode or not based on the first preset charger voltage.
Specifically, when the second output current is not equal to the rated output current, comparing the first preset charger voltage with the rated output voltage, and if the first preset charger voltage is smaller than the rated output voltage, determining that the charging chip works in the step-down working mode.
2. If the step-down working mode is adopted, multiplying the second output power by the preset output power value to obtain second preprocessing power, namely through a formula P 2 ＝P 2BUS X 1.1 calculating the second output power, wherein P 2 Refers to the second pretreatment power, P 2BUS Refers to the second output power. And carrying out power pretreatment on the second output power to prevent the influence on the accuracy of the second output power due to the fact that the voltage of the second preset charger is constantly changed in the charging process.
3. And comparing the second pretreatment power with the first maximum output power corresponding to the first preset charger voltage, and returning to the step S21 when the second pretreatment power is smaller than the first maximum output power until the second pretreatment power is not smaller than the first maximum output power.
The first maximum output power refers to maximum output power corresponding to a first preset charger voltage. Taking the pen power as an example, in this embodiment, the first preset charger voltage is 9V, and the first maximum output power is the maximum output power corresponding to 9V.
Specifically, after the second preprocessing power is acquired, the second preprocessing power is compared with the first maximum output power, and when the second preprocessing power is smaller than the first maximum output power, step S21 is performed. And step S21 is executed by judging that the second pretreatment power is smaller than the first maximum output power, so that the output voltage of the charger is continuously adjusted along with the change of the battery voltage, the output voltage of the charger is always kept close to the battery voltage and is not too far different, the charging efficiency is improved, the electric quantity loss is reduced, and the heating problem of the charger is improved.
S27: and determining a third output current according to the third preset charger voltage and the third output power.
Specifically, after the third preset charger voltage and the third output power are obtained, the third preset charger voltage and the third output power are calculated according to a p=ui power calculation formula, so as to obtain a third output current. The third output current is a current value calculated according to a third preset charger voltage and a third output power.
S28: and obtaining the third preprocessing power by multiplying the third output power with the preset output power value.
Specifically, after the third output power is obtained, the third output power is multiplied by the preset output power value to obtain third preprocessing power. I.e. by the formula P 3 ＝P 3BUS And processing the third output power by x 1.1 to obtain third preprocessing power, wherein the preset value of the output power in the embodiment is 1.1. Wherein P is 3 Refer to the third pretreatment power, P 3BUS Refers to the third output power. The preset output power value refers to preset power pretreatment for the third output power to prevent the third preset chargingThe voltage of the electric appliance continuously changes in the charging process, and the third output power accuracy is affected.
S29: comparing the third output current with the rated output current, and executing the step of acquiring the second preset charger voltage and the second output power until the charging is finished when the third output current is smaller than the rated output current and the third pretreatment power is smaller than the third maximum output power corresponding to the third preset charger voltage.
Step S21-step S29, through comparing the first output current with the rated output current, when the first output current is equal to the rated output current, determine whether the charging chip is in a step-down operation mode based on the first preset charger voltage, if the charging chip is operated in the step-down operation mode, obtain the second output current, and compare the second output current with the rated output current, if the second output current is equal to the rated output current, obtain the third output current, and compare the third output current with the rated output current, when the third output current is smaller than the rated output current, and the third preprocessing power is smaller than the third maximum output power corresponding to the third preset charger voltage, then continue to execute step S24, so as to realize that the output current of the charger is correspondingly adjusted through the change of the rated output current, and the output current of the charger is determined through the output voltage, and the rated output current is determined through the battery voltage, so that the output voltage of the charger is not fixedly output, and is changed according to the change of the battery voltage, so that the output voltage of the charger is always close to the battery voltage, the charging efficiency is improved, the loss of the charger is reduced, and the heat of the charger is improved.
In an embodiment, as shown in fig. 6, in step S23, it is determined whether the charging chip is in a step-down operation mode based on a first preset charger voltage, and the method specifically includes the following steps:
s231: and obtaining a rated output voltage, and comparing the rated output voltage with a first preset charger voltage.
S232: and when the rated output voltage is larger than the first preset charger voltage, the charging chip is in a step-down working mode.
Step S231-step S232, the charging efficiency is improved by determining that the charging chip works in the step-down working mode.
According to the charger output voltage regulating method provided by the invention, the type of the charger is obtained by obtaining the power supply overload information sent by the charger. When the charger type is an adjustable voltage output type, whether the charging chip works in a voltage reduction working mode or not is determined by comparing the initial output current of the charger with the corresponding rated output current according to the actual preprocessing voltage, so that the initial output voltage is determined to be subjected to voltage reduction processing or voltage boosting processing, the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed. When the charger type is a fixed voltage output type, the first output current, the second output current and the third output current are respectively compared with the rated output current, and whether the charging chip works in a step-down working mode is determined according to the first preset charger voltage so as to adjust the output voltage of the charger, so that the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed, the output voltage of the charger and the battery voltage are more approximate, the charging efficiency is improved, the electric quantity loss of the charger is reduced, and the heating problem of the charger is improved.
As shown in fig. 7, fig. 7 is a schematic block diagram of a charger output voltage adjusting device 100 according to the present invention. The invention provides a charger output voltage adjusting device 100, which comprises a charger type acquisition module 11, an initial output voltage acquisition module 12, an initial output current determination module 13, a step-down working mode judgment module 14, a step-down processing module 15, a step-up processing module 16, a first parameter acquisition module 21, a first output current acquisition module 22, a first output current judgment module 23, a second parameter acquisition module 24, a second output current acquisition module 25, a second output current judgment module 26, a third output current acquisition module 27, a third output power processing module 28 and a third parameter judgment module 29.
The charger type acquisition module 11 is configured to acquire power supply overload information sent by the charger, and acquire a charger type based on the power supply overload information. The initial output voltage obtaining module 12 is configured to obtain an initial output voltage of the charger if the charger type is an adjustable voltage output type. The current determination module 13 is configured to determine an initial output current based on the initial output voltage. The step-down operation mode determining module 14 is configured to determine whether the charging chip is in the step-down operation mode based on the actual preprocessing voltage when the initial output current is smaller than the rated output current. And the step-down processing module 15 is configured to step-down the initial output voltage if the charging chip is in a step-down operation mode and the actual output power of the charger is smaller than the current rated output power. The boost processing module 16 is configured to boost the initial output voltage when the initial output current is not less than the rated output current.
After the charger type acquisition module 11, the charger output voltage adjusting device 100 further includes:
the first parameter obtaining module 21 is configured to obtain a first preset charger voltage and a first output power if the charger type is a fixed voltage output type. The first output current obtaining module 22 is configured to determine a first output current according to a first preset charger voltage and a first output power. The first output current judging module 23 is configured to determine whether the charging chip is in the step-down operation mode based on the first preset charger voltage when the first output current is equal to the rated output current. The second parameter obtaining module 24 is configured to obtain a second preset charger voltage and a second output power if the step-down operation mode is set. A second output current acquisition module 25 for determining a second output current based on a second preset charger voltage and a second output power. The second output current judging module 26 is configured to compare the second output current with the rated output current, and obtain a third preset charger voltage and a third output power when the second output current is equal to the rated output current. A third output current acquisition module 27 for determining a third output current based on a third preset charger voltage and a third output power. The third output power processing module 28 is configured to obtain a third pre-processing power by multiplying the third output power by the preset output power value. And a third parameter judging module 29, configured to compare the third output current with the rated output current, and when the third output current is smaller than the rated output current and the third pre-processing power is smaller than the third maximum output power corresponding to the third preset charger voltage, perform the step of obtaining the second preset charger voltage and the second output power until the charging is completed.
The charger output voltage adjusting device 100 provided by the invention obtains the type of the charger by obtaining the power supply overload information sent by the charger. When the charger type is an adjustable voltage output type, whether the charging chip works in a voltage reduction working mode or not is determined by comparing the initial output current of the charger with the corresponding rated output current according to the actual preprocessing voltage, so that the initial output voltage is determined to be subjected to voltage reduction processing or voltage boosting processing, the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed. When the charger type is a fixed voltage output type, the first output current, the second output current and the third output current are respectively compared with the rated output current, and whether the charging chip works in a step-down working mode is determined according to the first preset charger voltage so as to adjust the output voltage of the charger, so that the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed, the output voltage of the charger and the battery voltage are more approximate, the charging efficiency is improved, the electric quantity loss of the charger is reduced, and the heating problem of the charger is improved.
As shown in fig. 8, the present invention further provides an intelligent terminal 200, including: one or more processors 210; a memory 220 for storing one or more programs; the one or more programs are executed by the one or more processors 210, such that the one or more processors 210 implement the charger output voltage regulation method of any of the above embodiments.
The processor 210 is electrically connected, either directly or indirectly, to the memory 220 for data transfer or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The memory 220 stores one or more programs therein, and the processor 210 executes various functional applications and data processing by running the software programs stored in the memory 220 to implement the charger output voltage regulating method in the above-described embodiment of the present invention.
The Memory 220 may be, but is not limited to, a random access Memory (Random Access Memory, RAM), a Read Only Memory (ROM), a programmable Read Only Memory (Programmable Read-Only Memory, PROM), an erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc. The memory 220 is used for storing a program, and the processor 210 executes the program after receiving an execution instruction. It is understood that access to memory 220 by processor 210 and possibly other components may be under the control of a memory controller.
The processor 210 may be an integrated circuit chip with signal processing capabilities. The processor 210 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but also Digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Processor 210 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention.
It is to be understood that the configuration shown in fig. 8 is merely illustrative, and that the intelligent terminal 200 may also include more or less components than those shown in fig. 8, or have a different configuration than those shown in fig. 8. The components shown in fig. 8 may be implemented in hardware, software, or a combination thereof.
The present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the charger output voltage regulation method of any one of the above.
It should be noted that all embodiments of the method for adjusting output voltage of charger provided by the present invention are applicable to the device for adjusting output voltage of charger, the intelligent terminal and the computer readable storage medium, and can achieve the same or similar beneficial effects.
In summary, the method and apparatus 100 for adjusting output voltage of a charger, the intelligent terminal 200, and the computer readable storage medium provided by the present invention acquire the type of the charger by acquiring the power supply overload information sent by the charger. When the charger type is an adjustable voltage output type, whether the charging chip works in a voltage reduction working mode or not is determined by comparing the initial output current of the charger with the corresponding rated output current according to the actual preprocessing voltage, so that the initial output voltage is determined to be subjected to voltage reduction processing or voltage boosting processing, the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed. When the charger type is a fixed voltage output type, the first output current, the second output current and the third output current are respectively compared with the rated output current, and whether the charging chip works in a step-down working mode is determined according to the first preset charger voltage so as to adjust the output voltage of the charger, so that the output voltage of the charger is correspondingly adjusted along with the change of the rated output voltage corresponding to the rated output current (namely, the battery voltage in the intelligent electronic equipment) and is not fixed, the output voltage of the charger and the battery voltage are more approximate, the charging efficiency is improved, the electric quantity loss of the charger is reduced, and the heating problem of the charger is improved.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention, or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (8)
1. A method for regulating the output voltage of a charger, comprising the steps of:
acquiring power supply overload information sent by a charger, and acquiring the type of the charger based on the power supply overload information;
if the charger type is an adjustable voltage output type, acquiring initial output voltage of the charger;
determining an initial output current based on the initial output voltage;
when the initial output current is smaller than the rated output current, determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage;
if the charging chip is in a step-down working mode and the actual output power of the charger is smaller than the current rated output power, step-down processing is carried out on the initial output voltage;
when the initial output current is not smaller than the rated output current, boosting the initial output voltage;
Before the charger type is acquired based on the power supply overload information, the charger output voltage adjusting method further comprises the following steps:
obtaining a battery voltage, and multiplying the battery voltage by a rated voltage preset value to obtain a rated output voltage; the rated voltage preset value is 1.2;
determining a rated output current based on the rated output voltage;
the determining whether the charging chip is in a step-down working mode based on the actual preprocessing voltage comprises the following steps:
obtaining an actual output voltage, and subtracting a voltage pretreatment value from the actual output voltage to obtain an actual pretreatment voltage; the voltage pretreatment value is 0.2;
and when the actual pretreatment voltage is larger than the rated output voltage, determining that the charging chip is in a step-down working mode.
2. The charger output voltage regulating method of claim 1, wherein after said step-down processing of said initial output voltage, said charger output voltage regulating method further comprises:
acquiring the current battery voltage after the step-down treatment;
obtaining a target output voltage obtained after the initial output voltage is subjected to step-down treatment;
comparing the target output voltage with the current battery voltage after the step-down treatment;
When the difference between the target output voltage and the current battery voltage after the step-down processing is not within a preset voltage difference range, returning the target output voltage as an initial output voltage to the step of determining an initial output current based on the initial output voltage;
and charging according to the target output voltage until the difference value between the target output voltage and the current battery voltage is within a preset voltage difference range.
3. The charger output voltage regulating method of claim 1, wherein after said step-up processing of said initial output voltage, said charger output voltage regulating method further comprises:
acquiring the current battery voltage after the boosting treatment;
obtaining an effective output voltage obtained after boosting the initial output voltage;
comparing the effective output voltage with the current battery voltage after the boosting treatment;
when the difference between the effective output voltage and the current battery voltage after the boosting processing is not within a preset voltage difference range, returning the effective output voltage as an initial output voltage to the step of determining an initial output current based on the initial output voltage;
And charging according to the effective output voltage until the difference value between the effective output voltage and the current battery voltage after the boosting processing is within a preset voltage difference range.
4. The charger output voltage adjustment method of claim 1, further comprising a first preset charger voltage, a second preset charger voltage, and a third preset charger voltage, the first preset charger voltage being less than the second preset charger voltage and less than the third preset charger voltage;
after the charger type is acquired based on the power supply overload information, the charger output voltage adjusting method further comprises the following steps:
if the charger type is a fixed voltage output type, acquiring a first preset charger voltage and a first output power;
determining a first output current according to the first preset charger voltage and the first output power;
when the first output current is equal to the rated output current, determining whether the charging chip is in a step-down working mode or not based on the first preset charger voltage;
if the voltage is in the step-down working mode, acquiring a second preset charger voltage and a second output power;
Determining a second output current according to the second preset charger voltage and the second output power;
comparing the second output current with the rated output current, and acquiring a third preset charger voltage and a third output power when the second output current is equal to the rated output current;
determining a third output current according to the third preset charger voltage and the third output power;
obtaining third preprocessing power by multiplying the third output power by an output power preset value;
comparing the third output current with the rated output current, and executing the step of acquiring the second preset charger voltage and the second output power until the charging is finished when the third output current is smaller than the rated output current and the third pretreatment power is smaller than the third maximum output power corresponding to the third preset charger voltage.
5. The method of claim 4, wherein determining whether the charging chip is in the buck mode based on the first predetermined charger voltage comprises:
obtaining rated output voltage, and comparing the rated output voltage with the first preset charger voltage;
And when the rated output voltage is larger than the first preset charger voltage, the charging chip is in a step-down working mode.
6. A charger output voltage regulating device, comprising:
the charger type acquisition module is used for acquiring power supply overload information sent by the charger and acquiring the type of the charger based on the power supply overload information;
the initial output voltage acquisition module is used for acquiring the initial output voltage of the charger if the type of the charger is an adjustable voltage output type;
an initial output current determination module for determining an initial output current based on the initial output voltage;
the step-down working mode judging module is used for determining whether the charging chip is in a step-down working mode or not based on the actual preprocessing voltage when the initial output current is smaller than the rated output current;
the voltage reduction processing module is used for carrying out voltage reduction processing on the initial output voltage if the charging chip is in a voltage reduction working mode and the actual output power of the charger is smaller than the current rated output power;
the boosting processing module is used for boosting the initial output voltage when the initial output current is not smaller than the rated output current;
Before the charger type is acquired based on the power supply overload information, the method further comprises:
obtaining a battery voltage, and multiplying the battery voltage by a rated voltage preset value to obtain a rated output voltage; the rated voltage preset value is 1.2;
determining a rated output current based on the rated output voltage;
the determining whether the charging chip is in a step-down working mode based on the actual preprocessing voltage comprises the following steps:
obtaining an actual output voltage, and subtracting a voltage pretreatment value from the actual output voltage to obtain an actual pretreatment voltage; the voltage pretreatment value is 0.2;
and when the actual pretreatment voltage is larger than the rated output voltage, determining that the charging chip is in a step-down working mode.
7. An intelligent terminal, characterized by comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs are executed by the one or more processors to cause the one or more processors to implement the charger output voltage regulation method of any one of claims 1-5.
8. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 5.
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| CN112947191A (en) * | 2021-02-08 | 2021-06-11 | 联想(北京)有限公司 | Information processing method, information processing device, electronic equipment and storage medium |
| CN113922457A (en) * | 2021-10-19 | 2022-01-11 | 北京小米移动软件有限公司 | Charging method, charging device, electronic device and storage medium |
| CN116169759A (en) * | 2021-11-25 | 2023-05-26 | 中兴通讯股份有限公司 | Charging control method, controller, charging terminal and readable storage medium |
| CN115425733B (en) * | 2022-11-03 | 2023-02-14 | 深圳市华宝新能源股份有限公司 | Charging control method and device, solar charging controller and storage medium |
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