CN113054728A - Charging control method and power adapter - Google Patents
Charging control method and power adapter Download PDFInfo
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- CN113054728A CN113054728A CN202110351949.6A CN202110351949A CN113054728A CN 113054728 A CN113054728 A CN 113054728A CN 202110351949 A CN202110351949 A CN 202110351949A CN 113054728 A CN113054728 A CN 113054728A
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- charging
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- power adapter
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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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
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
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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
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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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
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a charging control method and a power adapter, wherein the method is applied to the power adapter and comprises the following steps: charging the electronic equipment in a first charging mode; and under the condition that a first control condition is met, charging the electronic equipment in a second charging mode, wherein second charging power in the second charging mode is the maximum charging power capable of being completely charged by the power adapter, and first charging power in the first charging mode is larger than the second charging power.
Description
Technical Field
The present application relates to the field of charging control technologies, and in particular, to a charging control method and a power adapter.
Background
At present, when charging devices such as mobile phones or notebooks, the rechargeable batteries in the devices are mostly charged at a low speed, if the rechargeable batteries need to be charged at a high speed, the power adapter with higher charging power needs to be replaced to meet the high-speed charging power, and therefore the quick charging of the low-power adapter cannot be realized.
Disclosure of Invention
In view of the above, the present application provides a charging control method and a power adapter, including:
a charging control method is applied to a power adapter, and comprises the following steps:
charging the electronic equipment in a first charging mode;
and under the condition that a first control condition is met, charging the electronic equipment in a second charging mode, wherein second charging power in the second charging mode is the maximum charging power capable of being completely charged by the power adapter, and first charging power in the first charging mode is larger than the second charging power.
The above method, preferably, the first control condition includes at least any one or more of the following:
the total time length of the power adapter for charging at the first charging power is greater than or equal to a time length threshold value;
the battery capacity of the electronic device is greater than or equal to a capacity threshold;
the battery temperature of the electronic device is greater than or equal to a first temperature threshold;
the adapter temperature of the power adapter is greater than or equal to a second temperature threshold.
The method preferably includes charging the electronic device in the first charging mode, and includes:
continuously charging the electronic device with the first charging power in the first charging mode until the first control condition is satisfied.
The method preferably includes charging the electronic device in the first charging mode, and includes:
charging an electronic device with first charging power in a first charging mode until a second control condition is met, charging the electronic device with third charging power in the first charging mode until a third control condition is met, and returning to perform the charging of the electronic device with the first charging power in the first charging mode until the first control condition is met;
wherein the third charging power is less than the first charging power.
In the above method, preferably, the second control condition includes: the battery temperature of the electronic device is greater than or equal to a third temperature threshold, and/or the adapter temperature of the power adapter is greater than or equal to a fourth temperature threshold;
the third control condition includes: the battery temperature of the electronic device is less than or equal to a fifth temperature threshold, and/or the adapter temperature of the power adapter is less than or equal to a sixth temperature threshold, wherein the fifth temperature threshold is less than the third temperature threshold, and the sixth temperature threshold is less than the fourth temperature threshold.
In the above method, preferably, before the electronic device is charged in the first charging mode, the method further includes:
determining a first charging mode with the electronic device such that the power adapter charges the electronic device in the first charging mode until the first control condition is satisfied.
The method preferably further includes, before determining the first charging mode with the electronic device, the step of:
determining a second charging mode with the electronic device such that the power adapter charges the electronic device in the second charging mode;
in the process of charging the electronic device in the second charging mode, the steps of: a first charging mode is determined with the electronic device.
The method, preferably, for determining the first charging mode with the electronic device, includes:
performing equipment verification on the electronic equipment to obtain a verification result representing whether the electronic equipment meets equipment verification conditions;
and under the condition that the verification result represents that the electronic equipment meets the equipment verification condition, sending an adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment and the power adapter determine a first charging mode under the condition that the adapter temperature value meets a quick charging condition.
In the above method, preferably, in the process of charging the electronic device in the first charging mode, the method further includes:
and sending the adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment adjusts the power consumption parameter under the condition that the adapter temperature value meets the over-temperature protection condition.
A power adapter, comprising:
the power supply circuit is used for charging the electronic equipment;
the controller is used for controlling the power supply circuit to charge the electronic equipment in a first charging mode; and under the condition that a first control condition is met, controlling the power supply circuit to charge the electronic equipment in a second charging mode, wherein second charging power in the second charging mode is the maximum charging power of the power adapter capable of being fully charged, and first charging power in the first charging mode is larger than the second charging power.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart of a charging control method according to an embodiment of the present disclosure;
FIGS. 2-6 are diagrams illustrating examples of applications of embodiments of the present application;
fig. 7-8 are respectively another flow charts of a charging control method according to an embodiment of the present disclosure;
fig. 9 is a partial flowchart of a charging control method according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a charging control device according to a second embodiment of the present application;
fig. 11 is a schematic structural diagram of a power adapter according to a third embodiment of the present application;
fig. 12-15 are diagrams illustrating application examples of the power adapter applied to the notebook computer according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a flowchart of an implementation of a charging control method provided in an embodiment of the present application is shown, where the method may be applied to a power adapter capable of charging an electronic device. The technical scheme in the embodiment is mainly used for realizing the quick charging of the low-power adapter so as to improve the charging efficiency.
Specifically, the method in this embodiment may include the following steps:
step 101: the electronic device is charged in a first charging mode.
The first charging mode may be understood as a fast charging mode, in which the power adapter charges the electronic device with the first charging power, and the electronic device stores electric energy in a battery included in the electronic device during charging of the power adapter.
Step 102: during the charging of the electronic device in the first charging mode, it is monitored whether a first control condition is satisfied, and in the case that the first control condition is satisfied, step 103 is executed.
Wherein the first control condition may be understood as: it is desirable to reduce the charging power and thereby ensure safe use conditions for the power adapter and the electronic device.
Specifically, in this embodiment, the device states of the power adapter and/or the electronic device may be monitored, and whether the first control condition is satisfied is monitored according to the device states. The device status may include one or more items of status information indicating whether the power adapter and/or the electronic device is in normal or safe use, such as temperature, battery capacity, duration of charge, etc.
Step 103: and charging the electronic equipment in a second charging mode.
The second charging mode can be understood as a standard charging mode, the second charging power in the second charging mode is the maximum charging power that the power adapter can perform complete charging, and the first charging power in the first charging mode is greater than the second charging power.
It should be noted that, in this embodiment, the second charging power may be understood as a maximum charging power at which the power adapter can continuously charge the electronic device until the electronic device is fully charged, and the first charging power is a charging power greater than the maximum charging power at which the power adapter can continuously charge the electronic device until the electronic device is fully charged. Taking a power adapter with a rated charging power of 65w as an example, the power adapter can be continuously charged until the full maximum charging power is 65w, in this embodiment, the notebook computer is charged with a charging power of 100w which is greater than 65w, and then when the first control condition is met, the notebook computer is switched to 65w to be charged, so that the notebook computer is charged by 100w which is greater than 65w for a period of time, low-power quick charging is realized, and the charging efficiency of the notebook computer can be improved.
In view of the above, in the charging control method provided in the first embodiment of the present application, the power adapter first charges the electronic device with the first charging power, and then charges the electronic device with the second charging power lower than the first charging power when the first control condition is met, where the second charging power is the maximum charging power at which the power adapter can perform complete charging. It can be seen that, in this embodiment, after the power adapter charges the electronic device with a larger power than the full charging power for a short time, the power adapter charges with the full charging power continuously under the condition that the control condition is satisfied, so that the power adapter with a smaller charging power can be charged quickly on the premise of ensuring the safe use of the power adapter, and the charging efficiency is improved accordingly.
In one implementation, in the case that the first control condition is satisfied, the characteristic power adapter or the electronic device may have a safety risk due to the power adapter being charged with an excessive power, and at this time, the electronic device is charged by switching to the second charging power. Specifically, the first control condition at least includes any one or more of the following items:
1. the total time length of the power adapter for charging at the first charging power is greater than or equal to the time length threshold value.
In this embodiment, the power adapter may continuously charge the electronic device using the first charging power or intermittently charge the electronic device using the first charging power, and when the total duration of charging with the first charging power is greater than or equal to the duration threshold, switch to the second charging power to charge the electronic device.
Specifically, the duration threshold may be set according to a requirement. For example, based on the historical data, the duration threshold is set to 10 minutes, and when the power adapter charges the notebook at 100w for 10 minutes, the power adapter switches to 65w to continue charging the notebook.
2. The battery capacity of the electronic device is greater than or equal to a capacity threshold.
Wherein the capacity threshold can be set according to requirements. For example, based on the history data, the capacity threshold is set to 40%, and when the power adapter charges the notebook at 100w until the battery capacity of the notebook reaches 40%, the power adapter switches to 65w to continue charging the notebook.
3. The battery temperature of the electronic device is greater than or equal to a first temperature threshold.
Wherein, the first temperature threshold value can be set according to requirements. For example, based on the history data, the first temperature threshold is set to a value of 40 degrees, 50 degrees, or so, and when the power adapter charges the notebook at 100w until the battery temperature of the notebook reaches 45 degrees, the power adapter switches to 65w to continue charging the notebook.
4. The adapter temperature of the power adapter is greater than or equal to the second temperature threshold.
Wherein the second temperature threshold can be set according to requirements. For example, based on the history data, the second temperature threshold is set to a value of 50 degrees, 70 degrees, or about, and when the power adapter charges the notebook at 100w until the adapter temperature of the power adapter reaches 65 degrees, the power adapter switches to 65w to continue charging the notebook.
In one implementation, when the power adapter charges the electronic device in the first charging mode, the power adapter may continue to charge the electronic device at the first charging power in the first charging mode until the first control condition is satisfied.
As shown in fig. 2, after the power adapter continuously charges the notebook for a certain time period at 100w, when the time period of continuous charging reaches a time period threshold value, such as 10 minutes, the first control condition is satisfied, and at this time, the notebook is charged by switching to 65 w.
In another implementation, when the power adapter charges the electronic device in the first charging mode, the power adapter may intermittently charge the electronic device with the first charging power in the first charging mode, for example: the electronic device is charged with the first charging power in the first charging mode until the second control condition is met, the electronic device is charged with the third charging power in the first charging mode again until the third control condition is met, the electronic device is returned to be charged with the first charging power in the first charging mode, and the process is continued until the first control condition is met, wherein the third charging power is smaller than the first charging power, specifically, the second charging power, or larger than the second charging power or smaller than the second charging power.
The second control condition may be that a time period for charging with the first charging power reaches a specific first threshold, or the second control condition may also be that: the battery temperature of the electronic device is greater than or equal to the third temperature threshold, and/or the adapter temperature of the power adapter is greater than or equal to the fourth temperature threshold.
The third control condition may be that a time period for charging with the third charging power reaches a specific second threshold, the second threshold may be the same as or different from the first threshold, or the third control condition may also be that a battery temperature of the electronic device is less than or equal to a fifth temperature threshold, and/or an adapter temperature of the power adapter is less than or equal to a sixth temperature threshold. Here, the fifth temperature threshold is smaller than the third temperature threshold, and the sixth temperature threshold is smaller than the fourth temperature threshold.
In one implementation manner, in the intermittent charging process of the power adapter, the duration of charging with the first charging power and the duration of charging with the third charging power each time may be fixed durations or dynamically changing durations. As shown in fig. 3, the power adapter first charges the notebook for 2 minutes at 100w in the first charging mode, charges the electronic device for 2 minutes at 80w again, charges the notebook for 2 minutes at 100w again, charges the electronic device for 2 minutes at 80w again, and charges the notebook at 65w until the total time for charging the notebook at 100w reaches 10 minutes; alternatively, as shown in fig. 4, the power adapter first charges the notebook at 100w in the first charging mode for 4 minutes, charges the electronic device again at 80w for 2 minutes, charges the notebook at 100w for 3 minutes, and charges the electronic device again at 80w for 2 minutes until the total time period for charging the notebook at 100w reaches 10 minutes, and charges the notebook at 65 w.
In another implementation manner, in the intermittent charging process of the power adapter, the time duration of each charging with the first charging power and the time duration of each charging with the third charging power are not fixed, and are related to the adapter temperature of the power adapter and/or the battery temperature of the electronic device. As shown in fig. 5, the power adapter first charges the notebook at 100w, and monitors whether the battery temperature of the notebook reaches the third temperature threshold, when the battery temperature reaches the third temperature threshold, such as 35 degrees, the power adapter charges the notebook at 80w, and continues to monitor the battery temperature of the notebook, and when the battery temperature decreases to the fifth temperature threshold, such as 30 degrees, the power adapter charges the notebook again at 100w, and so on, until any one of the following is satisfied: the notebook battery capacity reaches 40%, the total time for charging the notebook at 100w reaches 10 minutes, the notebook battery temperature reaches 45 degrees, the adapter temperature reaches 65 degrees, etc., and the power adapter charges the notebook at 65 w. For another example, as shown in fig. 6, the power adapter first charges the notebook at 100w, and monitors whether the adapter temperature of the power adapter reaches a fourth temperature threshold, when it is monitored that the adapter temperature reaches the fourth temperature threshold, for example, 55 degrees, the power adapter charges the notebook at 80w, and continues to monitor the adapter temperature of the power adapter, and when the adapter temperature decreases to a sixth temperature threshold, for example, 45 degrees, the power adapter charges the notebook again at 100w, and this process is continued until any one of the following is satisfied: the notebook battery capacity reaches 40%, the total time for charging the notebook at 100w reaches 10 minutes, the notebook battery temperature reaches 45 degrees, the adapter temperature reaches 65 degrees, etc., and the power adapter charges the notebook at 65 w.
In one implementation, before the power adapter charges the electronic device in the first charging mode, the method in this embodiment may further include the following steps, as shown in fig. 7:
step 104: the power adapter and the electronic device determine a first charging mode, so that the power adapter charges the electronic device in the first charging mode until a first control condition is met.
The charging parameter negotiation between the power adapter and the electronic device can be performed through the connected charging interface, such as negotiation of parameters of charging power, charging duration, charging mode and the like. Specifically, parameter negotiation can be realized between the power adapter and the electronic device through handshaking, so that the charging mode adopted for charging the electronic device, namely the first charging mode with the first charging power, can be determined on the side of the power adapter.
Specifically, under the condition that a fast charging protocol of common authentication exists between the power adapter and the electronic device, such as a power transfer protocol PD (power delivery), PD protocol communication is performed between the power adapter and the electronic device, and a first charging mode is determined between the power adapter and the electronic device during the communication, so that the power adapter provides charging with a first charging power to the electronic device;
or under the condition that the electronic device does not support the private quick-charging protocol of the power adapter, such as a customized charging protocol on the power adapter but the charging protocol is not recognized on the electronic device, at this time, the power adapter communicates with the electronic device according to the private protocol, and a first charging mode is determined between the power adapter and the electronic device during communication, so that the power adapter provides the electronic device with charging with first charging power.
For example, 100w PD protocol communication is performed between the power adapter and the notebook, and the power adapter notifies the notebook of the standard maximum charging power 65w and the fast charging power 100w during communication, so that the power adapter performs 100w fast charging to the notebook, and when the duration lasts for 10 minutes, that is, when the first control condition is satisfied, the power adapter performs 65w charging to the notebook.
For another example, the power adapter communicates with the notebook computer through the private quick-charge protocol of the power adapter to ensure that both the power adapter and the notebook computer support the private quick-charge protocol, and the power adapter notifies the notebook computer of the quick-charge power 100w and the maximum charge power 65w during the communication, so that the power adapter performs 100w quick-charge on the notebook computer, and when the duration lasts for 10 minutes, that is, the first control condition is met, the power adapter performs 65w charge on the notebook computer.
Further, before the power adapter and the electronic device determine the first charging mode, the method in this embodiment may further include the following steps, as shown in fig. 8:
step 105: the power adapter and the electronic device determine a second charging mode, so that the power adapter charges the electronic device in the second charging mode, and in the process of charging the electronic device in the second charging mode, step 104 is executed, that is, the power adapter and the electronic device determine the first charging mode.
That is to say, in this embodiment, the power adapter determines the second charging mode before determining the first charging mode with the electronic device, and during the process that the power adapter charges the electronic device in the second charging mode, the power adapter and the electronic device determine the first charging mode.
Specifically, under the condition that the electronic device does not support the private quick-charging protocol of the power adapter, the power adapter communicates with the electronic device through a commonly-authenticated standard charging protocol such as a PD protocol to determine a standard charging mode, i.e. a second charging mode, at this time, the power adapter can charge the electronic device in the second charging mode, during the process that the power adapter can charge the electronic device in the second charging mode, the power adapter communicates with the electronic device through the private quick-charging protocol to ensure that both the power adapter and the electronic device support the private quick-charging protocol, and during the communication, the power adapter notifies the electronic device of the first charging power in the first charging mode, so that after the communication is completed, the power adapter charges the electronic device through the first charging power in the first charging mode, and the power adapter resumes charging the electronic device with the second charging power in the second charging mode if the first control condition is satisfied.
For example, before the power adapter communicates with the notebook computer via 100w private protocol, the power adapter communicates with the notebook computer via 65w PD protocol, the power adapter notifies the notebook of the standard maximum charging power 65w in the communication, whereby the power adapter provides the notebook with charging of 65w, in the process that the power adapter supplies 65w of charging to the notebook computer, the power adapter and the notebook computer perform private quick-charging protocol communication of the power adapter, so as to ensure that the power adapter and the notebook computer both support the private quick-charging protocol, and the power adapter informs the notebook computer of the quick-charging power of 100w in the communication, therefore, the power adapter performs 100w quick-charging to the notebook computer, when the duration is 10 minutes or the battery capacity of the notebook computer reaches 40%, namely the first control condition is met, the power adapter charges the notebook computer by 65 w.
Based on the above implementation, in the case that the electronic device does not support the private fast charging protocol of the power adapter, when the power adapter and the electronic device determine the first charging mode in step 104, the method may specifically include the following steps, as shown in fig. 9:
step 901: the power adapter performs equipment verification on the electronic equipment to obtain a verification result representing whether the electronic equipment meets the equipment verification condition.
Specifically, the device verification condition may be: conditions under which the electronic device matches the power adapter, such as device parameters of the electronic device matching the power adapter, and/or whether adapter parameters of the power adapter match the electronic device, etc.
The power adapter may perform bidirectional device verification with the electronic device, for example, the power adapter detects whether device parameters of the electronic device, such as a device model, are matched with the power adapter, and the electronic device detects whether adapter parameters of the power adapter, such as an adapter type, are matched with the electronic device, and the like. Based on this, through two-way authentication between power adapter and the electronic equipment to ensure that all support the private protocol of filling soon between adapter and the electronic equipment, and confirm that power adapter is the adapter of electronic equipment default configuration, in order to prevent that third party's adapter from carrying out malicious charging.
Step 902: and judging whether the verification result represents that the electronic equipment meets the equipment verification condition, and executing the step 903 under the condition that the verification result represents that the electronic equipment meets the equipment verification condition.
Step 903: the power adapter sends the adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment and the power adapter determine a first charging mode under the condition that the adapter temperature value meets a quick charging condition.
In this embodiment, under the condition that the verification result indicates that the electronic device meets the device verification condition, it may be determined that both the power adapter and the electronic device support a private fast charging protocol of the power adapter, at this time, the power adapter and the electronic device may communicate with each other through a private protocol handshake, during this process, the power adapter sends an adapter temperature value to the electronic device, and based on this, it is determined on the electronic device whether the fast charging condition is met on the basis of the adapter temperature value.
It should be noted that the satisfaction of the fast charge condition indicates that the electronic device is in a state where the battery can receive the fast charge, such as the battery capacity is lower than the threshold, the battery temperature is lower than the threshold, and the like, and when the fast charge condition is satisfied, the electronic device may send an acknowledgement message to the power adapter to determine the charging parameter in the first charge mode, such as the first charging power, based on which the power adapter may charge the electronic device in the first charge mode.
Further, in this embodiment, in the process that the power adapter charges the electronic device in the first charging mode, the power adapter may further send the adapter temperature value of the power adapter to the electronic device, so that the electronic device adjusts the power consumption parameter when the adapter temperature value meets the over-temperature protection condition.
In addition, in this embodiment, the power adapter may further send a charging voltage to the electronic device, so that the electronic device adjusts a power consumption parameter when the voltage meets an overvoltage protection condition, thereby implementing overvoltage protection.
Or, in this embodiment, the power adapter may further send a charging current to the electronic device, so that the electronic device adjusts a power consumption parameter when the current meets an overcurrent protection condition, thereby implementing overcurrent protection.
Taking the over-temperature protection as an example, before the 100w private protocol communication is performed between the power adapter and the notebook, the power adapter performs 65w PD protocol communication with the notebook, and during the communication, the power adapter notifies the notebook of the standard maximum charging power 65w, so that the power adapter provides 65w charging for the notebook, and during the 65w charging process provided by the power adapter for the notebook, the private quick-charging protocol communication of the power adapter is performed between the power adapter and the notebook, which is specifically divided into three stages: firstly, performing identity authentication between a power adapter and a notebook computer through bidirectional authentication to ensure that the power adapter and the notebook computer both support a private quick-charging protocol, and confirming that the power adapter is an original design adapter of the notebook computer to prevent a third-party adapter from maliciously charging; secondly, carrying out private protocol handshake communication, in the process, a power adapter informs a notebook computer of the quick charging power of 100w and feeds back the temperature state of the adapter to the notebook computer, the notebook computer judges the states of the battery capacity, the temperature and the like of the notebook computer, when the states meet the quick charging condition, the notebook computer informs the power adapter and starts the quick charging of 100w, therefore, the power adapter carries out the quick charging of 100w to the notebook computer, the power adapter feeds back the temperature of the adapter to the notebook computer at regular time in the quick charging process of 100w, the notebook computer reduces the power consumption to prevent the temperature of the adapter from reaching an over-temperature protection point when the temperature of the adapter reaches a threshold value, and when the power adapter lasts for 10 minutes or the battery capacity of the notebook computer reaches 40 percent, namely the first control condition is met, the power adapter carries out the charging of 65w to the.
Referring to fig. 10, a schematic structural diagram of a charging control apparatus according to a second embodiment of the present disclosure is provided, where the charging control apparatus may be configured on a power adapter capable of charging an electronic device. The technical scheme in the embodiment is mainly used for realizing the quick charging of the low-power adapter so as to improve the charging efficiency.
Specifically, the apparatus in this embodiment may include the following units:
a charging control unit 1001 for charging the electronic device in a first charging mode;
a condition determining unit 1002, configured to trigger the charging control unit 1001 to charge the electronic device in a second charging mode when a first control condition is met, where a second charging power in the second charging mode is a maximum charging power that the power adapter can be fully charged, and a first charging power in the first charging mode is greater than the second charging power.
In view of the above, in the charging control apparatus provided in the second embodiment of the present application, the power adapter first charges the electronic device with the first charging power, and then charges the electronic device with the second charging power lower than the first charging power when the first control condition is satisfied, where the second charging power is the maximum charging power at which the power adapter can perform complete charging. It can be seen that, in this embodiment, after the power adapter charges the electronic device with a larger power than the full charging power for a short time, the power adapter charges with the full charging power continuously under the condition that the control condition is satisfied, so that the power adapter with a smaller charging power can be charged quickly on the premise of ensuring the safe use of the power adapter, and the charging efficiency is improved accordingly.
In one implementation, the first control condition includes at least any one or more of: the total time length of the power adapter for charging with the first charging power is greater than or equal to a time length threshold value; the battery capacity of the electronic device is greater than or equal to a capacity threshold; the battery temperature of the electronic device is greater than or equal to a first temperature threshold; the adapter temperature of the power adapter is greater than or equal to the second temperature threshold.
In one implementation, the charging control unit 1001 is specifically configured to: the electronic device continues to be charged at the first charging power in the first charging mode until the first control condition is satisfied.
In one implementation, the charging control unit 1001 is specifically configured to: charging the electronic device with the first charging power in the first charging mode until the second control condition is met, charging the electronic device with the third charging power in the first charging mode until the third control condition is met, and returning to perform charging the electronic device with the first charging power in the first charging mode until the first control condition is met;
and the third charging power is smaller than the first charging power.
Optionally, the second control condition includes: the battery temperature of the electronic device is greater than or equal to a third temperature threshold, and/or the adapter temperature of the power adapter is greater than or equal to a fourth temperature threshold;
the third control condition includes: the battery temperature of the electronic device is less than or equal to a fifth temperature threshold, and/or the adapter temperature of the power adapter is less than or equal to a sixth temperature threshold, the fifth temperature threshold being less than a third temperature threshold, the sixth temperature threshold being less than a fourth temperature threshold.
In one implementation, the charging control unit 1001 is further configured to determine the first charging mode with the electronic device before charging the electronic device in the first charging mode, so that the power adapter charges the electronic device in the first charging mode until the first control condition is satisfied.
Based on the above implementation, the charging control unit 1001, before determining the first charging mode with the electronic device, is further configured to: determining a second charging mode with the electronic device so that the power adapter charges the electronic device in the second charging mode; and determining the first charging mode with the electronic equipment in the process of charging the electronic equipment in the second charging mode.
In one implementation, the charging control unit 1001 and the electronic device determine a first charging mode, specifically to: the method comprises the steps of carrying out equipment verification on the electronic equipment to obtain a verification result representing whether the electronic equipment meets equipment verification conditions; and under the condition that the verification result represents that the electronic equipment meets the equipment verification condition, sending the adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment and the power adapter determine a first charging mode under the condition that the adapter temperature value meets the quick charging condition.
Based on the above implementation, the charging control unit 1001 is further configured to send the adapter temperature value of the power adapter to the electronic device in the process of charging the electronic device in the first charging mode, so that the electronic device adjusts the power consumption parameter when the adapter temperature value meets the over-temperature protection condition.
It should be noted that, for the specific implementation of each unit in the present embodiment, reference may be made to the corresponding content in the foregoing, and details are not described here.
Referring to fig. 11, a schematic structural diagram of a power adapter provided in the third embodiment of the present application, where the power adapter may include the following structure:
a power supply circuit 1101 for charging the electronic device;
a controller 1102, configured to control the power supply circuit 1101 to charge an electronic device in a first charging mode; under the condition that the first control condition is met, the power supply circuit 1101 is controlled to charge the electronic device in a second charging mode, wherein a second charging power in the second charging mode is a maximum charging power at which the power adapter can be fully charged, and a first charging power in the first charging mode is greater than the second charging power.
In view of the above, in the power adapter provided in the third embodiment of the present application, the power adapter first charges the electronic device with the first charging power, and then charges the electronic device with the second charging power lower than the first charging power when the first control condition is satisfied, where the second charging power is the maximum charging power at which the power adapter can be completely charged. It can be seen that, in this embodiment, after the power adapter charges the electronic device with a larger power than the full charging power for a short time, the power adapter charges with the full charging power continuously under the condition that the control condition is satisfied, so that the power adapter with a smaller charging power can be charged quickly on the premise of ensuring the safe use of the power adapter, and the charging efficiency is improved accordingly.
Taking the power adapter as an example of a notebook computer, the following describes the technical solution in detail:
first, the current charging methods of the notebook computer can be roughly divided into two types: one is a charging mode supporting a PD protocol of Type-C; the other is a charging mode supporting a square port or a round port and the like which do not support the PD protocol. However, for the two charging modes, the adapter is designed with the maximum charging power of the notebook computer, and the charging power is lower than the maximum power of the adapter for a part of time in the process of charging the notebook computer. This necessarily results in a waste of adapter design resources.
In addition, most rechargeable batteries are charged slowly, and if a fast charging mode is adopted, a larger power adapter needs to be designed to meet the fast charging power, so that the fast charging process of a low-power charger cannot be realized.
In view of this, the present application provides a technical solution for a low-power charger to realize fast charging of a notebook computer. The scheme is suitable for any low-power adapter to realize a high-power quick charging scene in a short time, and the actual power design needs to be defined according to the application scene of a user. The present application will be described in detail with an example of 65W turbo 100W:
the adapter matched with the notebook computer has 65W standard charging power, and 100W Turbo fast charging can be realized by the adapter within 10-15 minutes. As shown in fig. 12, when the electric quantity of the notebook computer is 0, the adapter and the notebook computer communicate through a private protocol, and 100W fast charge is performed for 10-15 minutes; at the moment, the electric quantity can be charged to 40%, then standard 60W charging is carried out, and 60% charging is carried out in 30 minutes; the notebook was filled in the last 60 minutes.
In specific implementation, the technical scheme of the application is as follows: the method comprises three parts of notebook quick-charging protocol design (key part), quick-charging adapter design supporting the protocol and design of a notebook and a battery. The following were used:
design of notebook computer quick charging protocol
The quick charging protocol has 3 implementation schemes:
(1) implementation scheme one
Before the private protocol communication, the notebook and the adapter firstly carry out the standard 65W PD protocol communication (Phase 1). After communication is completed, the adapter provides a maximum charge of 65W to the notebook. Wherein, the transmission between the system downstream port system DFP (downstream facing port), the system upstream port system UFP (upstream facing port), the adapter upstream port adapter UFP, and the adapter downstream port adapter DFP is as shown in fig. 13:
in Phase 1, the system DFP and the adapter UFP are connected through a Type-C cable, PD protocol communication is carried out between the system DFP and the adapter UFP based on the PD protocol, charging parameters are determined between the system and the adapter in the communication process, the adapter informs the system that the system has parameters of 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A and the like, the system informs the adapter that the adapter needs 20V/3.25A, namely 65W charging requirement, and the adapter feeds back confirmation to the system, and at the moment, the adapter can provide the notebook with the highest 65W charging requirement
Private protocol communication (Phase 2) follows. In connection with FIG. 13, as shown in FIG. 14, the notebook fastfill protocol is divided into 3 stages.
The first stage is authentication. After the notebook and the adapter are connected for the first time, the identity authentication is required to be carried out through the bidirectional authentication, the adapter and the notebook are ensured to support a private quick charging protocol, and the adapter is confirmed to be an original adapter so as to prevent the third party adapter from being charged maliciously.
The second phase is private protocol handshake communication. The stage is a notebook 100W fast-charging stage. The adapter firstly feeds back the temperature state to the notebook computer, the temperature can be collected through a temperature sensor in the adapter, and the notebook computer CPU judges the battery capacity, the temperature and the battery state of the notebook computer. When the state meets the requirement, the high-power quick charge of 20V/5A 100W is started.
The third phase is adapter state feedback. Including over-temperature feedback, over-temperature protection, overvoltage protection, overcurrent protection, etc. The adapter can regularly feed back the temperature state of the adapter, and when the temperature reaches a set critical value, the notebook computer can properly reduce the power consumption so as to prevent the temperature of the adapter from reaching an over-temperature protection point.
When the notebook battery is charged to 40%, the 100W quick charge is finished, and the notebook battery returns to the standard 65W charging state (Phase 3).
It should be noted that the PD protocol is a new power supply and communication connection, which allows USB devices to transfer up to 100W (20V/5A) of power, and at the same time, it can change the port properties, and can switch the port between DFP and UFP, and it can communicate with the cable to obtain the cable properties.
(2) Implementation scheme two
In Phase 1, the adapter broadcasts the maximum 100W (20V/5A) power to the notebook directly through the standard PD protocol. At this point the adapter will provide a 20V/5A charge to the notebook.
The notebook computer can adjust the power consumption of the notebook computer in real time according to the working state and the temperature of the adapter so as to meet the requirement of quick charging and ensure that the temperature of the adapter is within a specified range.
For example, a notebook may be intermittently recharged at 100W. When the temperature of the adapter is normal, the power consumption of the notebook computer is increased to 100W; when the temperature of the adapter reaches a critical point, the notebook computer reduces the power consumption to cool the adapter.
(3) Implementation scheme three
The PD protocol includes a Turbo charging function. That is, in PD protocol communication, the adapter broadcasts the standard maximum power (i.e. 65W) to the notebook, and broadcasts the Turbo charging capability (i.e. 100W, 10 minutes) of the notebook itself. After the reporting communication is finished, the notebook can directly carry out 100W fast charging and lasts for 10 minutes. After 10 minutes, the standard charge of 65W was restored.
Design of two, 65W Turbo 100W power adapter
The adapter is a 65W power adapter that supports standard protocols. And universal charging protocols of PD3.0, QC2.0 and the like are supported. Meanwhile, the adapter also supports the private quick-charging protocol of 10-15 minutes and 100W, and the protocol only supports charging of equipment compatible with the private protocol.
Design of notebook battery
The battery needs to be designed according to the maximum power that the adapter can provide, and is charged by matching with the charging mode. Take 65W (Turbo 100W) as an example. The maximum charging power of the battery is 100W, and 4 strings of 3245mAh battery packs are selected according to the scheme. As shown in fig. 15, the battery charging voltage was 16.8V to 17.8V, supporting 1.8C fast charge (3.245a 16.8V 1.8C 98.13W).
The charging curve of the battery should meet the corresponding power curve of the adapter, namely the battery is charged with 16.8V/5.8A power within 10-15 minutes. The charge current was then reduced to about 3.65A and the battery was fully charged within 60 minutes.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A charging control method is applied to a power adapter, and comprises the following steps:
charging the electronic equipment in a first charging mode;
and under the condition that a first control condition is met, charging the electronic equipment in a second charging mode, wherein second charging power in the second charging mode is the maximum charging power capable of being completely charged by the power adapter, and first charging power in the first charging mode is larger than the second charging power.
2. The method of claim 1, wherein the first control condition comprises at least any one or more of:
the total time length of the power adapter for charging at the first charging power is greater than or equal to a time length threshold value;
the battery capacity of the electronic device is greater than or equal to a capacity threshold;
the battery temperature of the electronic device is greater than or equal to a first temperature threshold;
the adapter temperature of the power adapter is greater than or equal to a second temperature threshold.
3. The method of claim 1 or 2, charging the electronic device in a first charging mode, comprising:
continuously charging the electronic device with the first charging power in the first charging mode until the first control condition is satisfied.
4. The method of claim 1 or 2, charging the electronic device in a first charging mode, comprising:
charging an electronic device with first charging power in a first charging mode until a second control condition is met, charging the electronic device with third charging power in the first charging mode until a third control condition is met, and returning to perform the charging of the electronic device with the first charging power in the first charging mode until the first control condition is met;
wherein the third charging power is less than the first charging power.
5. The method of claim 4, the second control condition comprising: the battery temperature of the electronic device is greater than or equal to a third temperature threshold, and/or the adapter temperature of the power adapter is greater than or equal to a fourth temperature threshold;
the third control condition includes: the battery temperature of the electronic device is less than or equal to a fifth temperature threshold, and/or the adapter temperature of the power adapter is less than or equal to a sixth temperature threshold, wherein the fifth temperature threshold is less than the third temperature threshold, and the sixth temperature threshold is less than the fourth temperature threshold.
6. The method of claim 1 or 2, prior to charging the electronic device in the first charging mode, the method further comprising:
determining a first charging mode with the electronic device such that the power adapter charges the electronic device in the first charging mode until the first control condition is satisfied.
7. The method of claim 6, prior to determining a first charging mode with the electronic device, the method further comprising:
determining a second charging mode with the electronic device such that the power adapter charges the electronic device in the second charging mode;
in the process of charging the electronic device in the second charging mode, the steps of: a first charging mode is determined with the electronic device.
8. The method of claim 6, determining, with the electronic device, a first charging mode comprising:
performing equipment verification on the electronic equipment to obtain a verification result representing whether the electronic equipment meets equipment verification conditions;
and under the condition that the verification result represents that the electronic equipment meets the equipment verification condition, sending an adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment and the power adapter determine a first charging mode under the condition that the adapter temperature value meets a quick charging condition.
9. The method of claim 6, further comprising, during charging of the electronic device in the first charging mode:
and sending the adapter temperature value of the power adapter to the electronic equipment, so that the electronic equipment adjusts the power consumption parameter under the condition that the adapter temperature value meets the over-temperature protection condition.
10. A power adapter, comprising:
the power supply circuit is used for charging the electronic equipment;
the controller is used for controlling the power supply circuit to charge the electronic equipment in a first charging mode;
and under the condition that a first control condition is met, controlling the power supply circuit to charge the electronic equipment in a second charging mode, wherein second charging power in the second charging mode is the maximum charging power of the power adapter capable of being fully charged, and first charging power in the first charging mode is larger than the second charging power.
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| CN202110351949.6A CN113054728A (en) | 2021-03-31 | 2021-03-31 | Charging control method and power adapter |
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| CN202110351949.6A CN113054728A (en) | 2021-03-31 | 2021-03-31 | Charging control method and power adapter |
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