CN110492575B - Quick charging system and method for handheld device and handheld device - Google Patents
Quick charging system and method for handheld device and handheld device Download PDFInfo
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- CN110492575B CN110492575B CN201910840350.1A CN201910840350A CN110492575B CN 110492575 B CN110492575 B CN 110492575B CN 201910840350 A CN201910840350 A CN 201910840350A CN 110492575 B CN110492575 B CN 110492575B
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention discloses a quick charging system and method for a handheld device and the handheld device, wherein the quick charging system for the handheld device comprises a charger, a charging wire and a device mainboard end, wherein the charger is connected with a USB interface of the device mainboard end; the device mainboard end comprises a first charging module, a second charging module, a regulation and control module, a USB interface and a battery, wherein the USB interface is respectively connected with the first charging module, the second charging module and the regulation and control module; the battery is respectively connected with the first charging module, the second charging module and the regulation and control module; the charger comprises a microcontroller and a charger interface, and two ends of the charging wire are respectively inserted into the charger interface and the USB interface. The invention has the advantage of improving the charging efficiency of the battery.
Description
Technical Field
The invention relates to the technical field of handheld devices, in particular to a quick charging system and method for a handheld device and the handheld device.
Background
In the prior art, the handheld device can only carry out quick charge through the Typc C charging wire like the cell-phone, and the USB A-micro B charging wire that uses extensively can only realize conventional the charging to the handheld device, and can not realize quick charge's effect.
Disclosure of Invention
The invention mainly aims to provide a charging system and method for handheld equipment and the handheld equipment, and aims to solve the problem that a USB A-micro B charging wire in the prior art cannot realize quick charging.
In order to achieve the purpose, the invention provides a quick charging system for handheld equipment, which comprises a charger, a charging wire and an equipment mainboard end, wherein the charger is connected with a USB interface of the equipment mainboard end; the device mainboard end comprises a first charging module, a second charging module, a regulation and control module, a USB interface and a battery, wherein the USB interface is respectively connected with the first charging module, the second charging module and the regulation and control module; the battery is respectively connected with the first charging module, the second charging module and the regulation and control module; the charger comprises a microcontroller and a charger interface, and two ends of the charging wire are respectively inserted into the charger interface and the USB interface.
Optionally, the device motherboard further includes a switching module, and the switching module is connected to the USB interface and the regulation and control module.
In order to achieve the above object, the present invention further provides a handheld device, wherein the device motherboard includes a first charging module, a second charging module, a regulation and control module, a USB interface and a battery, the USB interface is respectively connected to the first charging module, the second charging module and the regulation and control module, and both the first charging module and the second charging module are connected to the regulation and control module; the battery is respectively connected with the first charging module, the second charging module and the regulation and control module, and the USB interface is also used for being connected to a charging interface of an external charger with a built-in microcontroller.
Optionally, the device motherboard further includes a switching module, and the switching module is connected to the USB interface and the regulation and control module.
Optionally, the switching module is a single-pole double-throw switch or a double-pole double-throw switch.
Optionally, a DP pin, a DM pin, an I2C-CLK pin, and an I2C-SDA pin are disposed on the regulation module, and the double-pole double-throw switch connects the USB interface with the DP pin and the DM pin, or the double-pole double-throw switch connects the USB interface with the I2C-CLK pin and the I2C-SDA pin.
In order to achieve the above object, the present invention further provides a fast charging method applied to a handheld device, where the handheld device includes a first charging module, a second charging module and a battery, and the fast charging method includes the following steps:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the impedance of the charging line is obtained;
and configuring the charging parameters of the battery according to the impedance, and controlling the first charging module to charge the handheld device battery according to the charging parameters.
Optionally, the step of obtaining the impedance of the charging wire comprises, before:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the type of a charging port of the charger is detected;
when the charging port type is a special charging port, controlling a switching module to switch the communication mode of the handheld device and the charger into an I2C master-slave communication mode;
and determining that the I2C master-slave machine communication mode is successfully established, and acquiring the maximum output voltage and the maximum output current of the charger.
Optionally, the step of configuring the charging parameter of the handheld device according to the impedance comprises:
when the impedance is smaller than a preset impedance, the maximum charging current and the maximum charging voltage of the corresponding first charging module are obtained according to the impedance interval where the impedance is located, wherein the maximum charging current is smaller than or equal to the maximum output current of the charger, and the maximum charging voltage is smaller than or equal to half of the maximum output current of the charger.
Optionally, the step of charging the handheld device battery according to the charging parameter includes:
judging whether the current voltage of the battery of the handheld device reaches a preset voltage or not;
when the current voltage does not reach a preset voltage, starting the second charging module to perform constant-current charging on the battery until the current voltage reaches the preset voltage;
and when the current voltage reaches a preset voltage, starting the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
Optionally, the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
in the constant current charging stage of the battery, when the maximum charging voltage of the battery is detected to be greater than a preset alarm voltage, the maximum output voltage of the charger is reduced;
and when the maximum charging voltage of the battery is detected to be smaller than the preset alarm current, increasing the maximum output voltage of the charger.
Optionally, the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
in the constant voltage charging stage of the battery, reducing the preset alarm voltage value, and reducing the maximum output voltage of the charger when the maximum charging voltage of the battery is detected to be greater than the reduced preset alarm voltage;
and when the maximum charging voltage of the battery is detected to be smaller than the reduced preset alarm current, increasing the maximum output voltage of the charger.
Optionally, the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
in the constant voltage charging stage of the battery, when the current voltage of the battery reaches a preset target voltage and the maximum charging current of the first charging module is smaller than a preset current, the first charging module is controlled to be disconnected, and the second charging module is started to charge the battery until the charging is finished.
In order to achieve the above object, the present invention further provides a handheld device, which includes a memory, a processor, and a charging program of the handheld device stored in the memory and executable on the processor, wherein the charging program of the handheld device, when executed by the processor, implements the steps of the fast charging method according to any one of the above items.
To achieve the above object, the present invention further provides a readable storage medium, wherein a charging program of a handheld device is stored on the readable storage medium, and when the charging program of the handheld device is executed by a processor, the steps of the fast charging method according to any one of the above aspects are implemented.
The technical scheme of the invention is that by acquiring the impedance of the charging wire and configuring the charging parameters of the battery according to the impedance, the battery is rapidly charged according to the charging parameters, thereby improving the charging efficiency of the battery, the charging wire can be a common USB A-MicroB charging wire, only the microcontroller of the charger supports an I2C master-slave machine communication mode, the handheld device can configure the output voltage and output current of the charger, and controlling the first charging module to configure a charging current and a charging voltage according to the output voltage and the output current of the charger, therefore, the system and the method have wide applicability, the production cost is reduced, and a special logic control chip is not required to be added like the conventional Typc C charger. When the USB interface of handheld device is the Type C interface, only need will through Type C the Micro B switching of USB A-Micro B charging wire extremely the Type C interface can realize foretell fill soon and charge.
Drawings
FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a circuit framework of the rapid charging system according to the present invention;
FIG. 3 is a detailed flowchart of an embodiment of a fast charging method according to the present invention;
FIG. 4 is a schematic diagram illustrating a detailed process of another embodiment of the fast charging method of the present invention;
fig. 5 is a detailed flowchart of step S50 of the fast charging method according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main technical scheme of the invention is as follows:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the impedance of the charging line is obtained;
and configuring the charging parameters of the battery according to the impedance, and controlling a first charging module to charge the handheld device battery according to the charging parameters.
In the prior art, the handheld device can only carry out quick charge through the Typc C charging wire like the cell-phone, and the USB A-micro B charging wire that uses extensively can only realize conventional the charging to the handheld device, and can not realize quick charge's effect.
The technical scheme of the invention is that by acquiring the impedance of the charging wire and configuring the charging parameters of the battery according to the impedance, the battery is rapidly charged according to the charging parameters, thereby improving the charging efficiency of the battery, the charging wire can be a common USB A-MicroB charging wire, only the microcontroller of the charger supports an I2C master-slave machine communication mode, the handheld device can configure the output voltage and output current of the charger, and controlling the first charging module to configure a charging current and a charging voltage according to the output voltage and the output current of the charger, therefore, the system and the method have wide applicability, the production cost is reduced, and a special logic control chip is not required to be added like the conventional Typc C charger. When the USB interface of handheld device is the Type C interface, only need will through Type C the Micro B switching of USB A-Micro B charging wire extremely the Type C interface can realize foretell fill soon and charge.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware operating environment of a handheld device according to an embodiment of the present invention.
The handheld device of the embodiment of the invention can be a mobile handheld device, such as a mobile phone, a tablet computer, a portable notebook computer and the like. As shown in fig. 1, the handheld device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), a remote controller, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (such as a non-volatile memory, e.g., disk storage) and the memory 1005 may optionally also be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the handheld device shown in fig. 1 does not constitute a limitation of the handheld device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a charging program of a handheld device.
In the handheld device shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a charging program of the handheld device stored in the memory 1005 and perform the following operations:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the impedance of the charging line is obtained;
and configuring the charging parameters of the battery according to the impedance, and controlling a first charging module to charge the handheld device battery according to the charging parameters.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the type of a charging port of the charger is detected;
when the charging port type is a special charging port, controlling a switching module to switch the communication mode of the handheld device and the charger into an I2C master-slave communication mode;
and determining that the I2C master-slave machine communication mode is successfully established, and acquiring the maximum output voltage and the maximum output current of the charger.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
sending verification information to the charger;
and after receiving the confirmation information returned by the charger, determining that the I2C establishes the master-slave communication mode successfully.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
when the impedance is smaller than a preset impedance, the maximum charging current and the maximum charging voltage of the corresponding first charging module are obtained according to the impedance interval where the impedance is located, wherein the maximum charging current is smaller than or equal to the maximum output current of the charger, and the maximum charging voltage is smaller than or equal to half of the maximum output current of the charger.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
judging whether the current voltage of the handheld device battery reaches a preset voltage or not;
when the current voltage does not reach a preset voltage, starting a second charging module to perform constant-current charging on the battery until the current voltage reaches the preset voltage;
and when the current voltage reaches a preset voltage, starting the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
in the constant current charging stage of the battery, when the maximum charging voltage of the battery is detected to be greater than a preset alarm voltage, the maximum output voltage of the charger is reduced;
and when the maximum charging voltage of the battery is detected to be less than the preset alarm current, increasing the maximum output voltage of the charger.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
in the constant voltage charging stage of the battery, reducing the preset alarm voltage value, and when the maximum charging voltage of the battery is detected to be greater than the reduced preset alarm voltage, reducing the maximum output voltage of the charger;
and when the maximum charging voltage of the battery is detected to be smaller than the reduced preset alarm current, increasing the maximum output voltage of the charger.
Further, the processor 1001 may call a charging program of the handheld device stored in the memory 1005, and also perform the following operations:
in the constant voltage charging stage of the battery, when the current voltage of the battery reaches a preset target voltage and the maximum charging current of the first charging module is smaller than a preset current, the first charging module is controlled to be disconnected, and the second charging module is started to charge the battery until the charging is finished.
As shown in fig. 2, the present invention provides a handheld device 10, and a fast charging system 100 for the handheld device 10, wherein the fast charging system 100 includes a charger 20, a charging line and a device motherboard end, the charger 20 is connected to a USB interface 11 of the device motherboard end; the equipment mainboard end comprises a first charging module 12, a second charging module 13, a regulation and control module 14, a USB interface 11 and a battery 15, wherein the USB interface 11 is respectively connected with the first charging module 12, the second charging module 13 and the regulation and control module 14, and the first charging module 12 and the second charging module 13 are both connected with the regulation and control module 14; the battery 15 is connected to the first charging module 12, the second charging module 13 and the control module 14 respectively.
In this embodiment, the handheld device 10 may be a portable device such as a mobile phone and a tablet computer, a USB interface 11 is disposed on the device motherboard end of the handheld device 10, and the USB interface 11 may specifically be a Micro B interface or a Type C interface; the USB interface 11 is connected to the regulation and control module 14, so that after receiving the signal transmitted by the USB interface 11, the regulation and control module 14 controls the first charging module 12 or the second charging module 13 to charge the battery 15; the charger 20 is used for connecting the handheld device 10 with a mains supply to charge the handheld device 10, and the charger 20 is a quick charger capable of supporting quick charging protocols such as QC and PE to quickly charge the handheld device 10.
It can be understood that, the handheld device 100 of this embodiment may implement dual wireless simultaneous charging, for example, the first charging module 12 and the second charging module 13 may both be wireless charging chips, and may also implement wired and wireless dual charging modes to simultaneously charge, for example, the first charging module 12 is a wired charging chip, and the second charging module 13 is a wireless charging chip.
Optionally, the Battery 16 in the present invention includes a Battery core and a Battery 16 protection board, the Battery 16 is connected through the regulation and control module 15, the regulation and control module 14 in this embodiment is an SYS module, and specifically, the Battery 16 is connected through a Bat-temp pin (i.e., short for Battery and Temperature) of the SYS module, so as to implement real-time monitoring of the Temperature of the Battery 16.
Optionally, the quick charging system 100 further includes a charging line 30, the charger 20 includes a microcontroller 21 and a charger interface 22, and two ends of the charging line 40 are respectively plugged into the charger interface 22 and the USB interface 11. The charging wire 40 can be USB A-Micro B charging wire 40, also can Type C charging wire 40, also can be other charging wires 40, only need with 11 adaptations of USB interface can.
Optionally, the device motherboard further includes a switching module 40, and the switching module 40 is connected to the USB interface 11 and the regulation and control module 15. Optionally, the switching module 40 is a single-pole double-throw switch or a double-pole double-throw switch. The control module 15 is provided with a DP pin, a DM pin, an I2C-CLK pin, and an I2C-SDA pin, and the double-pole double-throw switch connects the charging interface with the DP pin and the DM pin, or the double-pole double-throw switch connects the charging interface with the I2C-CLK pin and the I2C-SDA pin.
In this embodiment, the DP pin, the DM pin, the I2C-CLK pin, and the I2C-SDA pin are used for signal transmission, when the DP pin and the DM pin are connected to the USB interface 11 through the switching module 40, the control module 15 operates in a DP/DM operating mode, and when the I2C-CLK pin and the I2C-SDA pin are connected to the USB interface 11 through the switching module 40, the control module 15 operates in an I2C master-slave communication mode, at this time, the handheld device is a master, and the charger is a slave.
In this embodiment, when the control module 15 works in an I2C master-slave communication mode, the control module 15 may perform master-slave information interaction with the charger 20, detect whether the charger 20 charges through a Dedicated Charging Port (DCP) based on the I2C master-slave communication mode, send verification information to the charger 20, and determine that the I2C master-slave communication mode is established between the handheld device 10 and the charger 20 when receiving confirmation information returned by the charger 20, and the control module 15 may further configure the maximum output voltage and the maximum output current of the charger 20 based on the I2C master-slave communication mode.
As shown in fig. 3, based on the above-mentioned handheld device and a fast charging system for the handheld device, a fast charging method of the present invention is proposed, which is applied to a handheld device, the handheld device includes a first charging module, a second charging module and a battery, and the 1 st embodiment of the fast charging method includes the following steps:
and step S10, the handheld device acquires the impedance of the charging wire after detecting that the charger is in communication connection with the charging wire through the charging wire.
In this embodiment, the charger is connected to the commercial power and is inserted handheld device's USB interface, with handheld device forms the communication connection after, can acquire the impedance of charging wire, specifically, to the known current of input in the charging wire to acquire the both ends that the charging wire is connected and also the charger end is to the pressure differential between the first module end that charges, according to ohm's law, the impedance of charging wire the pressure differential with the quotient of known current can understand, also can acquire through other modes the impedance of charging wire, no longer describe herein.
And step S20, configuring the charging parameters of the battery according to the impedance, and controlling a first charging module to charge the battery of the handheld device according to the charging parameters.
In this embodiment, after obtaining the impedance of the charging line, the output voltage and the output current of the charger may be configured according to the impedance, and the output current and the output voltage are transmitted to the first charging module, and the first charging module configures the charging voltage and the charging current of the battery according to the output current and the output voltage of the charger.
In summary, according to the technical solution of the present invention, by obtaining the impedance of the charging line and configuring the charging parameter of the battery according to the impedance, the battery is rapidly charged according to the charging parameters, thereby improving the charging efficiency of the battery, the charging wire can be a common USB A-MicroB charging wire, only the microcontroller of the charger supports an I2C master-slave machine communication mode, the handheld device can configure the output voltage and output current of the charger, and controlling the first charging module to configure a charging current and a charging voltage according to the output voltage and the output current of the charger, therefore, the system and the method have wide applicability, the production cost is reduced, and a special logic control chip is not required to be added like the conventional Typc C charger. When the USB interface of handheld device is the Type C interface, only need will through Type C the Micro B switching of USB A-Micro B charging wire extremely the Type C interface can realize foretell fill soon and charge.
As shown in fig. 4, a 2 nd embodiment of the fast charging method of the present invention is proposed based on the 1 st embodiment, and the step S10 includes:
step S30, after the handheld device detects that a charger is in communication connection with the handheld device through a charging wire, the type of a charging port of the charger is detected;
step S40, when the charging port type is a special charging port, controlling a switching module to switch the communication mode of the handheld device and the charger to an I2C master-slave communication mode;
and step S50, determining that the I2C master-slave machine communication mode is successfully established, and acquiring the maximum output voltage and the maximum output current of the charger.
In this embodiment, after detecting that a charger is in communication connection with a charging line through the charging line, a handheld device detects a charging port type of the charger, and when the charging port type is a dedicated charging port, increases a predetermined voltage, such as 0.6V, of a voltage value of a DP/DM in the charger to use the dedicated charging port as the charging port of the charger, and after a preset debounce duration, controls a switching module to switch a communication mode between the handheld device and the charger to an I2C master-slave communication mode, and after determining that the I2C master-slave communication mode is successfully established, obtains a maximum output voltage and a maximum output current of the charger, so that a charging parameter of the battery can be configured according to the maximum output voltage and the maximum output current of the charger and the impedance.
In this embodiment, when the charging port type is a USB charging port, the charger is controlled to perform constant current charging of 0.5A or less on the battery, and when the charging port type is a CDP charging port, the charger is controlled to perform constant current charging of 0.5A or less on the battery.
As shown in fig. 5, a 3 rd embodiment of the fast charging method of the present invention is proposed based on the above 1 st to 2 nd embodiments, and the step S50 includes:
step S51, sending authentication information to the charger;
and step S52, after receiving the confirmation information returned by the charger, determining that the I2C master-slave communication mode is successfully established.
In this embodiment, verification information is sent to the charger, where the verification information carries identification information, such as a charger ID, of the charger, and when the identification information matches the identification information carried in the charger, the charger returns confirmation information to the handheld device, and then may determine that the charger is a special charger capable of performing half-pressing direct charging, so as to perform subsequent steps of obtaining a maximum output voltage and a maximum output current of the charger.
In this embodiment, after the handheld device sends the verification information to the charger, the confirmation information returned by the charger is not received within a preset time interval, at this time, it is further detected whether the charger supports a fast charging protocol, such as a PE fast charging protocol or a QC fast charging protocol, when the charger supports the fast charging protocol, the battery is charged according to the corresponding fast charging protocol, and when the charger does not support the fast charging protocol, the battery is charged in a conventional charging manner.
Based on the above-described embodiments 1 to 3, the 4 th embodiment of the quick charging method of the present invention is proposed, and the step S20 includes:
step S21, when the impedance is smaller than a preset impedance, obtaining a maximum charging current and a maximum charging voltage of the corresponding first charging module according to an impedance interval where the impedance is located, where the maximum charging current is smaller than or equal to a maximum output current of the charger, and the maximum charging voltage is smaller than or equal to half of the maximum output current of the charger.
In this embodiment, the preset impedance may be, for example, 0.5 Ω, and when the impedance of the charging line is less than 0.5 Ω, the maximum charging current and the maximum charging voltage of the corresponding first charging module are obtained according to an impedance interval in which the impedance is located, where the maximum charging current is less than or equal to the maximum output current of the charger, and the maximum charging voltage is less than or equal to half of the maximum output current of the charger, and the battery is charged at a high current and at a half voltage according to the maximum charging current and the maximum charging voltage.
In this embodiment, when the impedance is greater than a preset impedance, it indicates that the charging line is not suitable for charging the battery in a half-voltage charging manner, and at this time, it is further detected whether the charger supports a fast charging protocol, such as a PE fast charging protocol or a QC fast charging protocol, and when the charger supports the fast charging protocol, the battery is charged according to the corresponding fast charging protocol, and when the charger does not support the fast charging protocol, the battery is charged in a conventional charging manner.
Based on the above-described embodiments 1 to 4, the 5 th embodiment of the quick charging method of the present invention is proposed, and the step S20 includes:
step S22, judging whether the current voltage of the battery of the handheld device reaches a preset voltage;
step S23, when the current voltage does not reach the preset voltage, a second charging module is started to perform constant current charging on the battery until the current voltage reaches the preset voltage;
step S24, when the current voltage reaches a preset voltage, enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
In this embodiment, the preset voltage may be, for example, 3.5V, and when the current voltage does not reach 3.5V, the first charging module is enabled to perform large-current half-voltage direct charging on the battery, which may damage the battery, so that the second charging module is enabled to perform constant-current charging on the battery until the current voltage of the battery reaches the preset voltage of 3.5V; and after the current voltage reaches a preset voltage of 3.5V, closing the second charging module, and starting the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
Based on the above-described embodiments 1 to 5, the 6 th embodiment of the quick charging method of the present invention is proposed, and the step S24 includes:
step S241, in the constant current charging stage of the battery, when the maximum charging voltage of the battery is detected to be larger than a preset alarm voltage, the maximum output voltage of the charger is reduced;
step S242, when it is detected that the maximum charging voltage of the battery is smaller than the preset alarm current, increasing the maximum output voltage of the charger.
In this embodiment, the current voltage of the battery is detected to determine which charging stage the battery is in, and when the current voltage is less than a preset voltage, it is determined that the battery is in a pre-charging stage, for example, the preset voltage may be 3.5V; when the current voltage is greater than a preset voltage and less than a preset target voltage, determining that the battery is in a constant current charging stage, wherein the preset target voltage can be equal to or slightly less than the terminal voltage of the battery after full charge; when the current voltage is greater than the preset target voltage and the charging current of the battery is less than the preset current, determining that the battery is in a constant-voltage charging stage; and after the current charging stage of the battery is obtained, controlling the corresponding charging loop to be conducted, thereby effectively improving the charging efficiency of the battery.
In this embodiment, in the constant current charging stage of the battery, when it is detected that the maximum charging voltage of the battery is greater than the preset alarm voltage, and the battery may be damaged, the maximum output voltage of the charger is reduced, and since the maximum charging voltage is equal to half of the maximum output voltage, the maximum charging voltage may be correspondingly reduced by reducing the maximum output voltage of the charger, so that the maximum charging voltage is less than the preset alarm voltage. When the maximum charging voltage of the battery is detected to be smaller than the preset alarm current, the maximum output voltage of the charger is increased, and the impedance of the charging line is fixed, so that the maximum output voltage of the charger is increased, the maximum output current of the charger can be increased, and the maximum charging current of the charging chip can be increased to improve the charging efficiency of the battery because the maximum charging current of the first charging module is equal to or smaller than the maximum output current of the charger.
Based on the above-described embodiments 1 to 6, the 7 th embodiment of the quick charging method of the present invention is proposed, and the step S24 includes:
step S243, in the constant voltage charging stage of the battery, reducing the preset alarm voltage value, and when it is detected that the maximum charging voltage of the battery is greater than the reduced preset alarm voltage, reducing the maximum output voltage of the charger;
step S244, when it is detected that the maximum charging voltage of the battery is smaller than the reduced preset alarm current, increasing the maximum output voltage of the charger.
In this embodiment, in the constant voltage charging stage of the battery, at this time, the battery is already close to the fully charged state, so that the preset alarm voltage value needs to be reduced to avoid damage to the battery, and meanwhile, when it is detected that the maximum charging voltage of the battery is greater than the reduced preset alarm voltage, the maximum output voltage of the charger is reduced to reduce the maximum charging voltage; and when the maximum charging voltage of the battery is detected to be smaller than the reduced preset alarm current, increasing the maximum output voltage of the charger so as to improve the maximum charging current and improve the charging efficiency of the battery.
Based on the above-described embodiments 1 to 7, the 8 th embodiment of the quick charging method of the present invention is proposed, and the step S24 includes:
step S245, in the constant voltage charging stage of the battery, when the current voltage of the battery reaches a predetermined target voltage and the maximum charging current of the first charging module is less than a predetermined current, controlling the first charging module to be turned off, and enabling the second charging module to charge the battery until the charging is finished.
In this embodiment, in the latter half of the constant voltage charging phase of the battery, when the current voltage of the battery reaches a predetermined target voltage, that is, the battery is already close to a fully charged state, and the maximum charging current of the first charging module is smaller than a predetermined current, that is, the electric quantity is hard to enter the battery at this time, the first charging module is controlled to be disconnected, and the second charging module is started to perform constant current charging on the battery until the charging is finished.
In order to achieve the above object, the present invention further provides a handheld device, which includes a memory, a processor, and a charging program of the handheld device stored in the memory and executable on the processor, wherein the charging program of the handheld device, when executed by the processor, implements the steps of the fast charging method as described above.
To achieve the above object, the present invention further provides a readable storage medium, wherein a charging program of a handheld device is stored on the readable storage medium, and the charging program of the handheld device, when executed by a processor, implements the steps of the fast charging method as described above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be substantially or partially embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a handheld device (e.g. a television, a mobile phone, a computer, a server, a handheld device, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A quick charging system for a handheld device is characterized by comprising a charger, a charging wire and a device mainboard end, wherein the charger comprises a microcontroller and a charger interface, two ends of the charging wire are respectively plugged in the charger interface and a USB interface, the microcontroller of the charger does not comprise a logic control chip and supports an I2C master-slave communication mode; the device mainboard end comprises a first charging module, a second charging module, a regulation and control module, a USB interface, a switching module and a battery, wherein the USB interface is respectively connected with the first charging module, the second charging module and the regulation and control module; the battery is respectively connected with the first charging module, the second charging module and the regulation and control module,
the control module is provided with a DP pin, a DM pin, an I2C-CLK pin and an I2C-SDA pin, wherein the DP pin, the DM pin, the I2C-CLK pin and the I2C-SDA pin are used for signal transmission;
the switching module is used for connecting the USB interface and the regulation and control module, and enabling the regulation and control module to work in a DP/DM working mode or an I2C master-slave communication mode according to the control of the regulation and control module, wherein: when the switching module connects the USB interface to the DP pin and the DM pin, the regulation module works in a DP/DM working mode, and when the switching module connects the USB interface to the I2C-CLK pin and the I2C-SDA pin, the regulation module works in an I2C master-slave communication mode;
the control module is used for detecting whether the charger is charged through a special charging port (DCP), controlling the switching module to switch a communication mode of the handheld device and the charger into an I2C master-slave communication mode when detecting that the charger is charged through the special charging port (DCP), configuring the maximum output voltage and the maximum output current of the charger after determining that the I2C master-slave communication mode is successfully established, and performing quick charging by using the first charging module and the second charging module.
2. A handheld device is characterized by comprising a device mainboard end, wherein the device mainboard end comprises a first charging module, a second charging module, a regulation and control module, a USB interface, a switching module and a battery, the USB interface is respectively connected with the first charging module, the second charging module and the regulation and control module, the USB interface is also used for being connected to a charging interface of an external charger with a built-in microcontroller, the microcontroller of the charger does not comprise a logic control chip and supports an I2C master-slave communication mode, and the first charging module and the second charging module are both connected with the regulation and control module; the battery is respectively connected with the first charging module, the second charging module and the regulation and control module, a DP pin, a DM pin, an I2C-CLK pin and an I2C-SDA pin are arranged on the regulation and control module, and the DP pin, the DM pin, the I2C-CLK pin and the I2C-SDA pin are used for signal transmission;
the switching module is used for connecting the USB interface and the regulation and control module, and enabling the regulation and control module to work in a DP/DM working mode or an I2C master-slave communication mode according to the control of the regulation and control module, wherein: when the switching module connects the USB interface to the DP pin and the DM pin, the regulation module works in a DP/DM working mode, and when the switching module connects the USB interface to the I2C-CLK pin and the I2C-SDA pin, the regulation module works in an I2C master-slave communication mode;
the control module is used for detecting whether the charger is charged through a special charging port (DCP), controlling the switching module to switch a communication mode of the handheld device and the charger into an I2C master-slave communication mode when detecting that the charger is charged through the special charging port (DCP), and configuring the maximum output voltage and the maximum output current of the charger after determining that the I2C master-slave communication mode is successfully established.
3. The handheld device of claim 2 wherein the switching module is a single pole double throw switch or a double pole double throw switch.
4. A quick charging method is applied to a handheld device, the handheld device comprises a first charging module, a second charging module and a battery, and the quick charging method is characterized by comprising the following steps:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the impedance of the charging line is obtained;
configuring charging parameters of the battery according to the impedance, and controlling the first charging module to charge the battery of the handheld device according to the charging parameters;
wherein, a microcontroller is arranged in the charger, the microcontroller does not include a logic control chip and supports an I2C master-slave communication mode, and the step of obtaining the impedance of the charging wire comprises the following steps:
the method comprises the steps that after the handheld device detects that a charger is in communication connection with the handheld device through a charging line, the type of a charging port of the charger is detected;
when the charging port type is a special charging port, controlling a switching module to switch the communication mode of the handheld device and the charger into an I2C master-slave communication mode;
determining that the I2C master-slave machine communication mode is successfully established, and acquiring the maximum output voltage and the maximum output current of the charger; and
and carrying out quick charging by utilizing the first charging module and the second charging module.
5. The fast charging method of claim 4, wherein said step of configuring charging parameters of said handheld device in accordance with said impedance comprises:
when the impedance is smaller than a preset impedance, the maximum charging current and the maximum charging voltage of the corresponding first charging module are obtained according to the impedance interval where the impedance is located, wherein the maximum charging current is smaller than or equal to the maximum output current of the charger, and the maximum charging voltage is smaller than or equal to half of the maximum output voltage of the charger.
6. The fast charging method of claim 5, wherein said step of charging said battery of said handheld device in accordance with said charging parameters comprises:
judging whether the current voltage of the battery of the handheld device reaches a preset voltage or not;
when the current voltage does not reach a preset voltage, starting the second charging module to perform constant-current charging on the battery until the current voltage reaches the preset voltage;
and when the current voltage reaches a preset voltage, starting the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
7. The fast charging method of claim 6, wherein said enabling said first charging module to charge said battery at said maximum charging current and said maximum charging voltage comprises:
in the constant current charging stage of the battery, when the maximum charging voltage of the battery is detected to be greater than a preset alarm voltage, the maximum output voltage of the charger is reduced;
and when the maximum charging voltage of the battery is detected to be less than the preset alarm voltage, increasing the maximum output voltage of the charger.
8. The fast charging method of claim 6, wherein said enabling said first charging module to charge said battery at said maximum charging current and said maximum charging voltage comprises:
in the constant voltage charging stage of the battery, reducing a preset alarm voltage value, and when the maximum charging voltage of the battery is detected to be greater than the reduced preset alarm voltage, reducing the maximum output voltage of the charger;
and when the maximum charging voltage of the battery is detected to be smaller than the reduced preset alarm voltage, increasing the maximum output voltage of the charger.
9. The fast charging method of claim 6, wherein said enabling said first charging module to charge said battery at said maximum charging current and said maximum charging voltage comprises:
in the constant voltage charging stage of the battery, when the current voltage of the battery reaches a preset target voltage and the maximum charging current of the first charging module is smaller than a preset current, the first charging module is controlled to be disconnected, and the second charging module is started to charge the battery until the charging is finished.
10. A handheld device comprising a memory, a processor and a charging program for the handheld device stored on the memory and executable on the processor, wherein the charging program for the handheld device when executed by the processor implements the steps of the fast charging method as claimed in any one of claims 4 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910840350.1A CN110492575B (en) | 2019-09-05 | 2019-09-05 | Quick charging system and method for handheld device and handheld device |
| PCT/CN2019/118904 WO2021042566A1 (en) | 2019-09-05 | 2019-11-15 | Quick charging system and method for handheld device, and handheld device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910840350.1A CN110492575B (en) | 2019-09-05 | 2019-09-05 | Quick charging system and method for handheld device and handheld device |
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| CN113078697A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Charging control method and device and adapter |
| CN111884281B (en) * | 2020-07-10 | 2022-07-12 | 广东小天才科技有限公司 | Quick charging system and method |
| CN115133596A (en) * | 2021-03-29 | 2022-09-30 | 北京小米移动软件有限公司 | Battery charging device and system |
| CN113555930B (en) * | 2021-07-16 | 2025-02-11 | 维沃移动通信有限公司 | Charging circuit and electronic equipment |
| CN115173500B (en) * | 2022-06-02 | 2024-07-12 | 赣州市江元电子有限公司 | Method for realizing PD charging protocol through bq25703+ fusb combination |
| CN116742761B (en) * | 2023-08-10 | 2023-11-17 | 北京小米移动软件有限公司 | Charging method, charging device, electronic equipment and storage medium |
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| WO2021042566A1 (en) | 2021-03-11 |
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