CN118281997B - Self-adaptive control circuit and method for charger - Google Patents
Self-adaptive control circuit and method for charger Download PDFInfo
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- CN118281997B CN118281997B CN202410684825.3A CN202410684825A CN118281997B CN 118281997 B CN118281997 B CN 118281997B CN 202410684825 A CN202410684825 A CN 202410684825A CN 118281997 B CN118281997 B CN 118281997B
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- 230000003993 interaction Effects 0.000 claims abstract description 61
- 230000000087 stabilizing effect Effects 0.000 claims description 36
- 238000004891 communication Methods 0.000 claims description 23
- 230000003044 adaptive effect Effects 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000036961 partial effect Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 5
- 238000011897 real-time detection Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 12
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a self-adaptive control circuit and a self-adaptive control method of a charger, wherein, firstly, whether first charging time information or first charging electric quantity information exists is judged according to man-machine interaction input information, if so, charging plan information is determined according to the first charging time information or the first charging electric quantity information and the charging information, and if not, the charging plan information is determined according to charging record information; then, second voltage information and second current information are obtained according to the first electric quantity information and the charging plan information; finally, the first voltage information is adjusted according to the second voltage information, and the first current information is adjusted according to the second current information; according to the invention, through collecting the user charging settings and analyzing the user charging habits, a corresponding charging plan is formulated for improving the user experience; the invention also adjusts the charging voltage and current provided by the charger for the charging equipment in a real-time detection and feedback control mode, and improves the controllability and the safety of the charging process.
Description
Technical Field
The invention belongs to the technical field of charging, and particularly discloses a self-adaptive control circuit and a self-adaptive control method of a charger.
Background
With the increasing development of electronic technology, the number of portable electronic devices carried by people is increasing, and the use frequency of chargers is increasing. However, the common charger has only simple charging function, lacks charging decision and safety protection, and has irreversible negative effects on the safety of the charger, the service life of charging equipment and the use safety. Therefore, there is a need to design an intelligent charge control technology.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an adaptive control circuit and method for a charger, which collect charger settings of a user and display a working state of the charger to the user through a man-machine interaction unit; the invention also establishes a corresponding charging plan by collecting the user charging settings and analyzing the user charging habits, thereby improving the user experience. In addition, the invention adjusts the charging voltage and current provided by the charger for the charging equipment in a real-time detection and feedback control mode, thereby improving the controllability and the safety of the charging process.
In order to achieve the above object, a first aspect of the present invention provides an adaptive control circuit of a charger, the adaptive control circuit of the charger:
the device comprises a processor, a voltage stabilizing output unit, a current management unit and a man-machine interaction unit;
The processor is used for calculating and determining output power information according to man-machine interaction input information and charging information of the charging equipment, and obtaining first voltage information and first current information for controlling charging output;
The voltage stabilizing output unit is used for receiving the voltage grade information sent by the processor and adjusting the first voltage information;
the current management unit is used for receiving the current adjustment control quantity sent by the processor and adjusting the first current information;
the man-machine interaction unit is used for feeding back man-machine interaction input information to the processor and displaying man-machine interaction output information sent by the processor.
In this scheme, steady voltage output unit includes:
The adjustable voltage stabilizing chip (U2), a first feedback resistor (R21), a second feedback resistor (R22), a first power inductor (L21) and a first polarity capacitor (C21);
A power input pin (Vin) of the adjustable voltage stabilizing chip (U2) is connected to a charging power supply (VCC_IN); the power output pin (Vout) of the adjustable voltage stabilizing chip (U2) is connected with the first end of the first feedback resistor (R21) and the first end of the first power inductor (L21) at the same time; the second end of the first power inductor (L21) is used as an output end (VCC-1) of the voltage stabilizing output unit and is connected with the positive electrode of the first polarity capacitor (C21); the feedback pin (FB) of the adjustable voltage stabilizing chip (U2) is simultaneously connected with the second end of the first feedback resistor (R21) and the first end of the second feedback resistor (R22); the ground pin (GND) of the adjustable voltage stabilizing chip (U2), the second end of the second feedback resistor (R22) and the negative electrode of the first polarity capacitor (C21) are connected to the ground level; an enabling control pin (En) of the adjustable voltage stabilizing chip (U2) is connected to a control pin (MCU-CTRL) of the processor.
In this scheme, the electric current management unit includes:
The adjustable constant current chip (U3), the third feedback resistor (R31) and the second polar capacitor (C31);
A current input pin (Vi+) of the adjustable constant current chip (U3) is connected to an output end (VCC-1) of the voltage stabilizing output unit; a current output pin (Vi-) of the adjustable constant current chip (U3) is used as an output end (VCC-OUT) of the current management unit, and is connected with a first end of the third feedback resistor (R31) and an anode of the second polar capacitor (C31); an adjusting pin (ADJ) of the adjustable constant current chip (U3) is connected with the second end of the third feedback resistor (R31); the ground pin (GND) of the adjustable constant current chip (U3) and the negative electrode of the second polar capacitor (C31) are connected to the ground level.
In this scheme, man-machine interaction unit includes:
User input modules including, but not limited to, touch keys, voice recognition;
Display output modules including, but not limited to, display screens, indicator lights;
is connected to the processor via a first serial communication bus.
The second aspect of the present invention further provides an adaptive control method of a charger, which is applied to the adaptive control circuit of any one of the above chargers, and specifically includes:
acquiring man-machine interaction input information and charging information of charging equipment;
judging whether first charging time information or first charging electric quantity information exists or not according to the man-machine interaction input information;
if yes, determining charging plan information according to the first charging time information or the first charging electric quantity information and the charging information;
if not, acquiring charging record information according to the charging information, and determining the charging plan information according to the charging record information;
acquiring first electric quantity information, and acquiring second voltage information and second current information according to the first electric quantity information and the charging plan information;
acquiring first voltage information, and judging whether the first voltage information is identical to second voltage information;
If not, the first voltage information is adjusted according to the second voltage information;
Acquiring first current information, and judging whether the first current information is identical to second current information;
if not, the first current information is adjusted according to the second current information.
In this scheme, according to the second voltage information, the first voltage information is adjusted, specifically:
Searching a preset output voltage grading table according to the second voltage information to obtain first partial pressure proportion information;
and adjusting a first feedback resistor or a second feedback resistor of the voltage stabilizing output unit according to the first voltage dividing proportion information to obtain the first voltage information.
In this scheme, the adjusting the first current information according to the second current information specifically includes:
Obtaining first current difference information according to the difference value of the first current information and the second current information;
obtaining first control quantity information, second control quantity information and third control quantity information according to the first current difference value information and preset control quantity weighting information;
obtaining an output control amount according to the sum of the first control amount, the second control amount and the third control amount;
And adjusting the resistance level of the third feedback resistor of the current management unit according to the output control quantity so as to adjust the first current information.
In this scheme, still include:
sending first communication instruction information, and judging whether a touch key event exists or not;
If yes, obtaining first page information and first coordinate information according to the first feedback instruction information;
Judging whether an event button exists at the first coordinate information position according to the first page information;
if yes, obtaining first key coding information according to the event button;
And obtaining first display output information according to the first key coding information, and sending the first display output information to the man-machine interaction unit through the second communication instruction information.
In this scheme, the charging schedule information includes:
a corresponding table of electric quantity, charging voltage and charging current of the charging equipment;
according to the first electric quantity information, the corresponding charging voltage and charging current, namely the second voltage information and the second current information, can be obtained through table lookup.
In this scheme, still include:
Obtaining information of allowed maximum charging power and battery capacity according to the charging information;
Acquiring the first electric quantity information and the first charging time information, and acquiring first charging power information according to the first electric quantity information, the first charging time information and the battery capacity information;
Judging whether the first charging power information exceeds the allowable maximum charging power;
if yes, setting the charging plan information according to the maximum allowable charging power;
if not, setting the charging plan information according to the first charging power information.
The invention provides a self-adaptive control circuit and a self-adaptive control method of a charger, wherein, firstly, whether first charging time information or first charging electric quantity information exists is judged according to man-machine interaction input information, if so, charging plan information is determined according to the first charging time information or the first charging electric quantity information and the charging information, and if not, the charging plan information is determined according to charging record information; then, second voltage information and second current information are obtained according to the first electric quantity information and the charging plan information; finally, the first voltage information is adjusted according to the second voltage information, and the first current information is adjusted according to the second current information; according to the invention, through collecting the user charging settings and analyzing the user charging habits, a corresponding charging plan is formulated for improving the user experience; the invention also adjusts the charging voltage and current provided by the charger for the charging equipment in a real-time detection and feedback control mode, and improves the controllability and the safety of the charging process.
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 certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 shows a block diagram of an adaptive control circuit of a charger according to the present invention;
FIG. 2 shows a circuit connection structure diagram of the regulated output unit according to an embodiment of the present invention;
Fig. 3 shows a circuit connection structure diagram of the current management unit according to an embodiment of the present invention;
fig. 4 shows a flowchart of an adaptive control method of the charger according to an embodiment of the present invention;
FIG. 5 shows a flowchart for adjusting the first voltage information according to an embodiment of the present invention;
fig. 6 shows a flowchart of adjusting the first current information according to an embodiment of the present invention.
Detailed Description
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The terms "first," "second," and the like, as used in embodiments of the present invention, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Nor does the terms "a," "an," or "the" or similar terms mean a limitation of quantity, but rather that at least one is present. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The steps preceding or following the methods of embodiments of the present invention are not necessarily performed in a sequential order. Rather, the various steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
Referring to fig. 1, fig. 1 shows a block diagram of an adaptive control circuit of a charger according to the present invention.
As shown in fig. 1, the first aspect of the present invention discloses an adaptive control circuit of the charger, which includes:
The device comprises a processor 102, a voltage stabilizing output unit 104, a current management unit 106 and a man-machine interaction unit 108;
the processor 102 is configured to calculate and determine output power information according to man-machine interaction input information and charging information of the charging device, so as to obtain first voltage information and first current information that control charging output;
the voltage stabilizing output unit 104 receives the voltage level information sent by the processor and is used for adjusting the first voltage information;
The current management unit 106 receives the current adjustment control amount sent by the processor and is used for adjusting the first current information;
The man-machine interaction unit 108 is configured to feed back man-machine interaction input information to the processor and display man-machine interaction output information sent by the processor.
The human-computer interaction input information is a user operation instruction which is fed back to the processor by the human-computer interaction unit according to the input condition of the user; the man-machine interaction input information is a display instruction sent by the processor and received by the man-machine interaction unit and is used for displaying the working condition of the charger; the charging information is the charging condition of the charging equipment, and comprises but is not limited to current electric quantity information, allowed maximum charging power, allowed maximum charging voltage, allowed maximum charging current and battery capacity information; the first voltage information is a charging voltage value provided by the voltage stabilizing output unit for charging equipment; the first current information is a charging current value provided by the current management unit for the charging device. The circuit comprises a processor, wherein the processor is used for collecting the user setting and the charging state of the charging equipment, making a charging plan and sending a charging regulation instruction to the voltage stabilizing output unit and the current management unit in real time. And the second step comprises a voltage stabilizing output unit, and a voltage adjusting module in the voltage level information adjusting circuit sent by the processor is used for outputting voltage with stable and appointed voltage value to charge the charging equipment. And thirdly, the charging device comprises a current management unit, wherein the current management unit is used for adjusting the control quantity according to the current sent by the processor and outputting a constant current with a specified current value to charge the charging device. Fourth, including man-machine interaction unit, collect the operation demand of users through touching the key, speech recognition, etc., and change into man-machine interaction input information and convey to the processor; and after receiving the output information from the processor, converting the output information into display information, and displaying the display information to a user through a display screen, an indicator light and other devices.
Referring to fig. 2, fig. 2 shows a circuit connection structure diagram of the voltage stabilizing output unit according to the embodiment of the invention.
According to an embodiment of the present invention, the regulated output unit includes:
The adjustable voltage stabilizing chip (U2), a first feedback resistor (R21), a second feedback resistor (R22), a first power inductor (L21) and a first polarity capacitor (C21);
A power input pin (Vin) of the adjustable voltage stabilizing chip (U2) is connected to a charging power supply (VCC_IN); the power output pin (Vout) of the adjustable voltage stabilizing chip (U2) is connected with the first end of the first feedback resistor (R21) and the first end of the first power inductor (L21) at the same time; the second end of the first power inductor (L21) is used as an output end (VCC-1) of the voltage stabilizing output unit and is connected with the positive electrode of the first polarity capacitor (C21); the feedback pin (FB) of the adjustable voltage stabilizing chip (U2) is simultaneously connected with the second end of the first feedback resistor (R21) and the first end of the second feedback resistor (R22); the ground pin (GND) of the adjustable voltage stabilizing chip (U2), the second end of the second feedback resistor (R22) and the negative electrode of the first polarity capacitor (C21) are connected to the ground level; an enabling control pin (En) of the adjustable voltage stabilizing chip (U2) is connected to a control pin (MCU-CTRL) of the processor.
It should be noted that the adjustable voltage stabilizing chip is an integrated circuit chip capable of outputting a stable power voltage within a preset range, wherein the adjustable voltage stabilizing chip adjusts an output voltage value according to a voltage value of the feedback pin. The voltage of the feedback pin is obtained after the first feedback resistor (R21) and the second feedback resistor (R22) are serially divided, that is, the voltage value of the feedback pin is adjusted by adjusting the resistance value of the first feedback resistor (R21) or the second feedback resistor (R22), so that the purpose of adjusting the output voltage of the voltage-stabilizing output unit is achieved. As one embodiment, at least one of the first feedback resistor (R21) and the second feedback resistor (R22) is a digitally adjustable varistor, and the processor reads and adjusts the resistance value of the digitally adjustable varistor through a preset communication command. That is, the processor calculates the voltage of the feedback pin of the adjustable voltage stabilizing chip (U2) according to the voltage value required to be output; then, according to the voltage division theorem, the resistance values of the first feedback resistor (R21) and the second feedback resistor (R22) are obtained; finally, the first feedback resistor (R21) or the second feedback resistor (R22) is subjected to resistance adjustment through a preset communication instruction, so that the purpose of adjusting the output voltage of the voltage-stabilizing output unit is achieved.
Referring to fig. 3, fig. 3 shows a circuit connection structure diagram of the current management unit according to an embodiment of the invention.
According to an embodiment of the present invention, the current management unit includes:
The adjustable constant current chip (U3), the third feedback resistor (R31) and the second polar capacitor (C31);
A current input pin (Vi+) of the adjustable constant current chip (U3) is connected to an output end (VCC-1) of the voltage stabilizing output unit; a current output pin (Vi-) of the adjustable constant current chip (U3) is used as an output end (VCC-OUT) of the current management unit, and is connected with a first end of the third feedback resistor (R31) and an anode of the second polar capacitor (C31); an adjusting pin (ADJ) of the adjustable constant current chip (U3) is connected with the second end of the third feedback resistor (R31); the ground pin (GND) of the adjustable constant current chip (U3) and the negative electrode of the second polar capacitor (C31) are connected to the ground level.
It should be noted that, the constant current source chip is an integrated circuit for controlling current output, its working principle is based on the principle of negative feedback, and an adjustable resistor is introduced into the feedback loop to make the output current and the input current keep a constant proportion, and the effect of adjusting current output is achieved by adjusting the resistance value of the adjustable resistor in the feedback loop. As one embodiment, the third feedback resistor (R31) is a digital adjustable varistor, and the processor reads and adjusts the resistance value of the digital adjustable varistor through a preset communication command. The processor adjusts the resistance value of the third feedback resistor (R31) according to the current adjustment control quantity, so that the purpose of adjusting the output current of the current management unit is achieved.
According to an embodiment of the present invention, the man-machine interaction unit includes:
User input modules including, but not limited to, touch keys, voice recognition;
Display output modules including, but not limited to, display screens, indicator lights;
is connected to the processor via a first serial communication bus.
The human-computer interaction unit is used for interfacing the use information with the user, and comprises the steps of collecting the setting input by the user, converting the setting into human-computer interaction input information, feeding the human-computer interaction input information back to the processor, converting the human-computer interaction output information sent by the processor into display information and displaying the display information to the user. The module for user input comprises, but is not limited to, a module capable of acquiring the use requirement of a user, such as touch keys, voice recognition and the like; display output modules include, but are not limited to, display screens, indicator lights, etc. that give the user visual display of changes. In practical application, a touch display screen is used as a man-machine interaction unit, and is connected with a processor through a group of preset serial communication buses and performs data communication.
It is worth mentioning that the method further comprises:
The temperature detection unit is used for collecting temperature information of the charger and feeding back the temperature information to the processor;
The temperature detection unit is a temperature sensor or a temperature detection circuit;
In the case of the temperature sensor, the temperature sensor is connected with a processor through a second serial communication bus;
And when the temperature detection circuit is adopted, the voltage division circuit is formed by connecting a thermistor and a voltage division resistor in series.
It should be noted that the temperature detection unit is used for collecting the temperature value of the charger circuit, and the processor adjusts the charging output according to the real-time temperature value of the charger circuit, so as to avoid the service life reduction and even burning down of the charger circuit caused by overhigh temperature. As an embodiment, the temperature detection unit may be implemented by a separate temperature sensor, for example, DS18B20, and transmits temperature information measured by the sensor itself to the processor through a preset communication command. As another embodiment, the temperature detection unit may be implemented by a temperature detection circuit having a thermistor as a core; the thermistor is connected with the voltage dividing resistor in series, the voltage value of the thermistor or the voltage dividing resistor is measured through an analog-digital converter of the processor, and then the resistance value of the thermistor is obtained through calculation of the voltage dividing theorem and the ohm theorem; and obtaining the temperature value of the position of the thermistor according to the resistance temperature correspondence table of the thermistor.
Referring to fig. 4, fig. 4 shows a flowchart of an adaptive control method of the charger according to an embodiment of the invention.
The first aspect of the invention discloses a self-adaptive control method of the charger, which comprises the following steps:
S402, acquiring man-machine interaction input information and charging information of a charging device;
s404, judging whether first charging time information or first charging electric quantity information exists or not according to the man-machine interaction input information;
s406, if yes, determining charging plan information according to the first charging time information or the first charging electric quantity information and the charging information;
S408, if not, acquiring charging record information according to the charging information, and determining the charging plan information according to the charging record information;
S410, acquiring first electric quantity information, and acquiring second voltage information and second current information according to the first electric quantity information and the charging plan information;
s412, acquiring first voltage information, and judging whether the first voltage information is identical to the second voltage information;
s414, if not, adjusting the first voltage information according to the second voltage information;
S416, acquiring first current information, and judging whether the first current information is identical to the second current information;
and S418, if not, adjusting the first current information according to the second current information.
It should be noted that, the first charging time information is a charging time of the charging device set by the user through the man-machine interaction unit; the first charging electric quantity information is a charging electric quantity value of the charging equipment set by a user through the man-machine interaction unit; the charging record information is a record of charging the charging equipment by the charger, and comprises, but is not limited to, initial electric quantity, end electric quantity and charging duration; the first electric quantity information is a real-time electric quantity value of the charging equipment; the second voltage information is a voltage target value of the output voltage; the second current information is a current target value of the output voltage. Firstly, when a user uses a charger to charge charging equipment, if charging related information, such as first charging time information or first charging electric quantity information, is input through a man-machine interaction unit, the user is indicated to limit the charging operation, and at the moment, a processor formulates corresponding charging almost according to the limit of the user; if the user does not input the charging related information, after identifying the charging equipment, searching the charging record of the current charging equipment, and obtaining the charging habit of the user on the current charging equipment, such as the charging duration, the ending charging electric quantity and the like, through analyzing the charging record, thereby being used as the basis for obtaining the charging plan. Then, collecting first electric quantity information of the charging device according to a preset time period, such as 100 milliseconds, 1 second, 3 seconds and the like; and searching the charging output required under the current electric quantity condition corresponding to the charging plan according to the first electric quantity information, wherein the charging output comprises second voltage information and second current information and is used for adjusting the charging output of the charger. When the first voltage information is different from the second voltage information, it indicates that the output voltage of the regulated output unit needs to be adjusted, that is, the first voltage information needs to be adjusted by taking the second voltage information as an output target. When the first current information is different from the second current information, it indicates that the output current of the current management unit needs to be adjusted, that is, the first current information needs to be adjusted by taking the second current information as an output target.
Referring to fig. 5, fig. 5 shows a flowchart of adjusting the first voltage information according to an embodiment of the invention.
In the embodiment of the present invention, the adjusting the first voltage information according to the second voltage information specifically includes:
s502, searching a preset output voltage classification table according to the second voltage information to obtain first partial pressure proportion information;
S504, a first feedback resistor or a second feedback resistor of the voltage stabilizing output unit is adjusted according to the first voltage dividing proportion information, and the first voltage information is obtained.
The first voltage division ratio information is a ratio of resistance values of the first feedback resistor and the second feedback resistor of the voltage stabilizing output unit. An output voltage grading table is preset in the processor and used for representing the resistance ratio of the first feedback resistor to the second feedback resistor at different grades; for example, levels 1,2,3, 4, 5 correspond to (1:0.2), (1:0.5), (1:1), (1:1.5), (1:2.0), respectively. And then, according to the first partial pressure proportion information, the target resistance value required to be set by the first feedback resistor or the second feedback resistor can be calculated. And finally, the processor adjusts the first voltage information according to the resistance value of the first feedback resistor or the second feedback resistor by a communication instruction of the preset digital adjustable rheostat for adjusting the resistance value according to the target resistance value.
Referring to fig. 6, fig. 6 shows a flowchart of adjusting the first current information according to an embodiment of the invention.
In the embodiment of the present invention, the adjusting the first current information according to the second current information specifically includes:
S602, obtaining first current difference information according to a difference value between the first current information and the second current information;
S604, obtaining first control quantity information, second control quantity information and third control quantity information according to the first current difference value information and preset control quantity weighting information;
S606, obtaining an output control quantity according to the sum of the first control quantity, the second control quantity and the third control quantity;
and S608, adjusting the resistance level of the third feedback resistor of the current management unit according to the output control quantity so as to adjust the first current information.
The control quantity weighting information is a calculation parameter of the control quantity and comprises an output current proportional control quantity weighting value, an output current integral control quantity weighting value and an output current differential control quantity weighting value; the first control quantity is an output current proportion control quantity and is used for adjusting the resistance level of the third feedback resistor; the second control quantity is an output current integral control quantity and is used for adjusting the resistance level of the third feedback resistor; the third control quantity is an output current differential control quantity and is used for adjusting the resistance level of the third feedback resistor. The output current of the charger directly influences the charging condition of the charging equipment, so that the first current information is regulated in a feedback control mode. Firstly, calculating a difference value between first current information and second current information to represent a difference between a current output current and a target output current; then, respectively obtaining an output current proportional control quantity, an output current integral control quantity and an output current differential control quantity through preset control quantity weighting values; finally, calculating the sum of the output current proportional control quantity, the output current integral control quantity and the output current differential control quantity to obtain an output control quantity, wherein the output control quantity is used for adjusting the resistance value of a third feedback resistor of the current management unit; the processor adjusts the resistance value of the third feedback resistor according to a communication instruction of the preset digital adjustable rheostat for adjusting the resistance value; in addition, the output current proportion control quantity can control the oscillation amplitude of the current change, the output current integral control quantity and the output current differential control quantity can control the oscillation frequency of the current change, and the current change can quickly and stably reach the target value by adjusting the weighting value of the corresponding control quantity. The invention adopts a mode of real-time detection and feedback control, and achieves the purpose of stably and quickly regulating and controlling the first current information through simultaneous regulation and control of three control quantities.
In an embodiment of the present invention, the method further includes:
sending first communication instruction information, and judging whether a touch key event exists or not;
If yes, obtaining first page information and first coordinate information according to the first feedback instruction information;
Judging whether an event button exists at the first coordinate information position according to the first page information;
if yes, obtaining first key coding information according to the event button;
And obtaining first display output information according to the first key coding information, and sending the first display output information to the man-machine interaction unit through the second communication instruction information.
The first communication instruction information is a touch key reading instruction sent to the man-machine interaction unit by the processor; the first feedback instruction information is an instruction of a touch key event condition fed back to the processor by the man-machine interaction unit; the first page information is page code of a page displayed by the human-computer interaction unit; the first coordinate information is a coordinate point of a touch position when a touch event occurs; the first key coding information is the coding information of the keys and is used for recording and distinguishing the functions of the keys; the first display output information is page content which is needed to be displayed by the human-computer interaction unit; the second communication instruction information is a communication instruction for packaging and sending the first display output information to the man-machine interaction unit. When the touch key is detected to be triggered by a user, first coordinate information of a touch position is obtained, a processor firstly reads a current page code, and then whether a key exists at the first coordinate information is inquired according to the page code; if so, indicating that the user presses the touch key; if not, it indicates that there is a possibility of false touch or false detection. When the user is determined to press the touch key, the processor executes corresponding calculation and processing operations according to the codes of the key, and finally, the calculation processing results, such as page skip, value increase or decrease, are output through the man-machine interaction unit.
In an embodiment of the present invention, the charging schedule information includes:
a corresponding table of electric quantity, charging voltage and charging current of the charging equipment;
according to the first electric quantity information, the corresponding charging voltage and charging current, namely the second voltage information and the second current information, can be obtained through table lookup.
It should be noted that the charging schedule is a charging output condition formulated for the charging device and the charging setting. And setting corresponding charging target voltage and target current according to the current electric quantity value of the charging equipment. For example, when the charge amount of the charging device is 30%, the second voltage information is 9V, and the second current information is 2A; when the electric quantity of the charging equipment is 85%, the second voltage information is 5V, and the second current information is 1A.
In an embodiment of the present invention, the method further includes:
Obtaining information of allowed maximum charging power and battery capacity according to the charging information;
Acquiring the first electric quantity information and the first charging time information, and acquiring first charging power information according to the first electric quantity information, the first charging time information and the battery capacity information;
Judging whether the first charging power information exceeds the allowable maximum charging power;
if yes, setting the charging plan information according to the maximum allowable charging power;
if not, setting the charging plan information according to the first charging power information.
It should be noted that, when the user sets the first charging time information, the processor may make a charging plan according to the charging power bearing condition of the charging device. And obtaining the electric quantity value required by the full charge of the current charging equipment according to the battery capacity and the current electric quantity, and obtaining the minimum charging power required by the full charge in the first charging time information set by the user, namely the first charging power information according to the charging time. Judging whether the first charging power information exceeds the allowable maximum charging power of the charging equipment; if so, setting charging plan information according to the maximum allowable charging power in order to ensure the charging safety because the charging equipment cannot bear the charging power of the first charging power information; if not, the charging plan information can be set according to the first charging power information, so that the requirement of the charging time of a user is met, and the charging equipment can be prevented from being kept in a full-load charging state for a long time.
It is worth mentioning that the method further comprises:
acquiring first electric quantity information;
judging whether the first electric quantity information exceeds a preset electric quantity threshold value or not;
if yes, entering a trickle output mode, wherein the first voltage information is set to be a preset trickle voltage threshold value and the first current information is set to be a preset trickle current threshold value.
The trickle output mode is a low current output mode, and the charging power is reduced by reducing the current, so that the problem of service life reduction of the charging equipment caused by overcharging and long-time full-load charging is avoided. When the electric quantity value of the charging equipment exceeds a preset electric quantity threshold value, entering a trickle output mode; in practical applications, the trickle output mode is entered when the charge level of the charging device exceeds 93%.
It is worth mentioning that the method further comprises:
Acquiring first temperature information, and judging whether the first temperature information exceeds a preset first temperature threshold value;
If yes, calculating to obtain first power information according to the first voltage information and the first current information;
Determining second power information according to the first temperature information and the first power information;
Searching a preset output voltage grading table according to the second power information and preset cooling current to obtain second voltage information for adjusting the first voltage information;
Calculating second current information according to the second power information and the second voltage information, and adjusting the first current information;
Judging whether the first temperature information exceeds a preset second temperature threshold value or not;
If yes, the first voltage information is set to be zero voltage and the first current information is set to be zero current.
The invention also adjusts the output power according to the temperature value of the charger circuit. When the temperature value of the charger circuit exceeds the first temperature threshold, the circuit temperature is higher, the stability of the circuit is affected, and the output power is reduced to weaken the rising trend of the temperature. First, first power information is obtained according to current first voltage information and first current information of the circuit, and the current output power is represented. Secondly, searching a preset temperature regulation table according to the first temperature information and the first power information to obtain second power information; wherein, the temperature regulation table is the decreasing amplitude of the power corresponding to the temperature value, for example, when the temperature value is 42 ℃, the power needs to be decreased by 10%; when the temperature value is 45 ℃, the power needs to be reduced by 20%. And then searching an output voltage grading table according to the second power information to obtain selectable second voltage information, and calculating according to the second power information and the second voltage information to obtain second current information. And finally, adjusting the first voltage information by using the second voltage information, and adjusting the second current information by using the second current information. In addition, when the temperature value of the charger circuit exceeds the second temperature threshold value, the circuit is indicated to have the risk of burning out, and at the moment, the outputs of the voltage stabilizing output unit and the current management unit are regulated to be zero so as to achieve the purposes of cooling and protecting the circuit.
It is worth mentioning that the method further comprises:
Acquiring charging equipment ID information according to the charging information;
searching the charging record information according to the ID information;
obtaining first charging time information according to a preset prediction rule according to the ending electric quantity and the charging duration in the charging record information;
and determining charging plan information according to the first time information and the charging information.
It should be noted that, after the processor reads the ID information of the charging device, the processor queries the charging record corresponding to the ID information. Then, according to the ending electric quantity, the charging time length and the like of the charging equipment, the charging habit of the user on the current charging equipment is analyzed; for example, when the device is approximately 30 minutes per charge, the charging schedule is determined for 30 minutes per charge duration; and when the charge end electric quantity of the equipment exceeds 93% and the charge time is longer than 1 hour, determining a charge plan by taking 1 hour as the charge time length. Through the analysis of the charging habit of the user, under the condition that the charging requirement of the user is met, the charging equipment is enabled to work under safer charging parameters, the service life of the charging equipment is prolonged, and the use experience of the user is further improved.
In summary, according to the self-adaptive control circuit and method for the charger provided by the invention, firstly, whether first charging time information or first charging electric quantity information exists is judged according to man-machine interaction input information, if yes, charging plan information is determined according to the first charging time information or the first charging electric quantity information and the charging information, and if not, the charging plan information is determined according to the charging record information; then, second voltage information and second current information are obtained according to the first electric quantity information and the charging plan information; finally, the first voltage information is adjusted according to the second voltage information, and the first current information is adjusted according to the second current information; according to the invention, through collecting the user charging settings and analyzing the user charging habits, a corresponding charging plan is formulated for improving the user experience; the invention also adjusts the charging voltage and current provided by the charger for the charging equipment in a real-time detection and feedback control mode, and improves the controllability and the safety of the charging process.
In addition, functional modules in the embodiments of the present invention may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An adaptive control method of a charger is applied to an adaptive control circuit of the charger, and the adaptive control circuit of the charger comprises the following steps:
the device comprises a processor, a voltage stabilizing output unit, a current management unit and a man-machine interaction unit;
the processor is used for calculating and determining output power information according to man-machine interaction input information and charging information of the charging equipment, and obtaining first voltage information and first current information for controlling charging output;
The voltage stabilizing output unit is used for receiving the voltage grade information sent by the processor and adjusting the first voltage information;
the current management unit is used for receiving the current adjustment control quantity sent by the processor and adjusting the first current information;
The human-computer interaction unit is used for feeding back human-computer interaction input information and human-computer interaction output information sent by the display processor to the processor;
the method is characterized by comprising the following steps:
acquiring man-machine interaction input information and charging information of charging equipment;
judging whether first charging time information or first charging electric quantity information exists or not according to the man-machine interaction input information;
if yes, determining charging plan information according to the first charging time information or the first charging electric quantity information and the charging information;
if not, acquiring charging record information according to the charging information, and determining the charging plan information according to the charging record information;
acquiring first electric quantity information, and acquiring second voltage information and second current information according to the first electric quantity information and the charging plan information;
acquiring first voltage information, and judging whether the first voltage information is identical to second voltage information;
If not, the first voltage information is adjusted according to the second voltage information;
Acquiring first current information, and judging whether the first current information is identical to second current information;
If not, the first current information is adjusted according to the second current information;
The man-machine interaction input information is a user operation instruction which is fed back to the processor by the man-machine interaction unit according to the input condition of the user;
The man-machine interaction output information is a display instruction sent by the processor and received by the man-machine interaction unit and is used for displaying the working condition of the charger;
The charging information is the charging condition of the charging equipment and comprises current electric quantity information, allowed maximum charging power, allowed maximum charging voltage, allowed maximum charging current or battery capacity information;
the first voltage information is a charging voltage value provided by the voltage stabilizing output unit for charging equipment;
The first current information is a charging current value provided by the current management unit for charging equipment;
the first charging time information is the charging time of the charging equipment set by the user through the man-machine interaction unit;
the first charging electric quantity information is a charging electric quantity value of the charging equipment set by a user through the man-machine interaction unit;
The charging record information is a record of charging of the charging equipment by the charger and comprises initial electric quantity, end electric quantity or charging duration;
The first electric quantity information is a real-time electric quantity value of the charging equipment;
The second voltage information is a voltage target value of the output voltage;
the second current information is a current target value of the output voltage.
2. The method for adaptively controlling a charger according to claim 1, wherein said adjusting said first voltage information according to said second voltage information is specifically:
Searching a preset output voltage grading table according to the second voltage information to obtain first partial pressure proportion information;
Adjusting a first feedback resistor or a second feedback resistor of a voltage stabilizing output unit according to the first voltage dividing proportion information to obtain the first voltage information;
The first partial pressure proportion information is the ratio of the resistance values of the first feedback resistor and the second feedback resistor of the voltage stabilizing output unit.
3. The method for adaptively controlling a charger according to claim 1, wherein said adjusting the first current information according to the second current information is specifically:
Obtaining first current difference information according to the difference value of the first current information and the second current information;
obtaining first control quantity information, second control quantity information and third control quantity information according to the first current difference value information and preset control quantity weighting information;
obtaining an output control amount according to the sum of the first control amount, the second control amount and the third control amount;
According to the output control quantity, the resistance level of a third feedback resistor of the current management unit is adjusted to adjust the first current information;
the control quantity weighting information is a calculation parameter of the control quantity and comprises an output current proportional control quantity weighting value, an output current integral control quantity weighting value and an output current differential control quantity weighting value;
the first control quantity is an output current proportion control quantity and is used for adjusting the resistance level of the third feedback resistor;
the second control quantity is an output current integral control quantity and is used for adjusting the resistance level of the third feedback resistor;
The third control quantity is an output current differential control quantity and is used for adjusting the resistance level of the third feedback resistor.
4. The adaptive control method of a charger according to claim 1, further comprising:
sending first communication instruction information, and judging whether a touch key event exists or not;
If yes, obtaining first page information and first coordinate information according to the first feedback instruction information;
Judging whether an event button exists at the first coordinate information position according to the first page information;
if yes, obtaining first key coding information according to the event button;
Obtaining first display output information according to the first key coding information, and sending the first display output information to the man-machine interaction unit through second communication instruction information;
The first communication instruction information is a touch key reading instruction sent to the man-machine interaction unit by the processor;
The first feedback instruction information is an instruction of a touch key event condition fed back to the processor by the man-machine interaction unit;
The first page information is page code of a page displayed by the human-computer interaction unit;
The first coordinate information is a coordinate point of a touch position when a touch event occurs;
the first key coding information is the coding information of the keys and is used for recording and distinguishing the functions of the keys;
the first display output information is page content which is needed to be displayed by the human-computer interaction unit;
the second communication instruction information is a communication instruction for packaging and sending the first display output information to the man-machine interaction unit.
5. The adaptive control method of a charger according to claim 1, wherein the charging schedule information includes:
a charge device power, charge voltage and charge current correspondence table;
according to the first electric quantity information, the corresponding charging voltage and charging current, namely the second voltage information and the second current information, can be obtained through table lookup.
6. The adaptive control method of a charger according to claim 1, further comprising:
Obtaining information of allowed maximum charging power and battery capacity according to the charging information;
Acquiring the first electric quantity information and the first charging time information, and acquiring first charging power information according to the first electric quantity information, the first charging time information and the battery capacity information;
Judging whether the first charging power information exceeds the allowable maximum charging power;
if yes, setting the charging plan information according to the maximum allowable charging power;
if not, setting the charging plan information according to the first charging power information.
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| CN114268153A (en) * | 2021-12-24 | 2022-04-01 | 广州星际悦动股份有限公司 | Charging control circuit, charging control method, charging control device, and storage medium |
| CN116937751A (en) * | 2023-09-13 | 2023-10-24 | 深圳市金致卓科技有限公司 | Circuit compatible with multiple protocols for charger and control method |
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| CN207304112U (en) * | 2017-09-11 | 2018-05-01 | 深圳易马达科技有限公司 | A kind of charging circuit and charging unit |
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| CN114268153A (en) * | 2021-12-24 | 2022-04-01 | 广州星际悦动股份有限公司 | Charging control circuit, charging control method, charging control device, and storage medium |
| CN116937751A (en) * | 2023-09-13 | 2023-10-24 | 深圳市金致卓科技有限公司 | Circuit compatible with multiple protocols for charger and control method |
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