CN109802457A - A kind of electronic equipment and its charging method - Google Patents
A kind of electronic equipment and its charging method Download PDFInfo
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- CN109802457A CN109802457A CN201910047190.5A CN201910047190A CN109802457A CN 109802457 A CN109802457 A CN 109802457A CN 201910047190 A CN201910047190 A CN 201910047190A CN 109802457 A CN109802457 A CN 109802457A
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- charging
- electronic device
- power supply
- battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/663—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits
- H02J7/667—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/865—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Telephone Function (AREA)
Abstract
A kind of electronic equipment and its charging method are related to power electronic equipment technical field.The embodiment of the present invention can be after electronic equipment connects external power supply, and selection is by the external power supply battery charging of electron equipment simultaneously and the load supplying of electron equipment, still only by the load supplying of external power supply electron equipment as needed.The electronic equipment includes power load, battery, charging circuit；Charging circuit includes: converting unit and charging control unit；Converting unit is exported for the voltage of the external power supply accessed from the charging interface of electronic equipment to be depressured, and from the output end of converting unit, to charge to power load, and is passed through charging control unit and is charged to battery；Charging control unit stops charging by charging control unit to battery for after meeting preset condition, disconnecting the access between the input terminal of charging control unit and output end.The present invention is applied to power electronic equipment.
Description
Technical Field
The invention relates to the technical field of power supply of electronic equipment, in particular to electronic equipment and a charging method thereof.
Background
With the technical development and wide use of various intelligent electronic devices, the dependence degree of users on the electronic devices is higher and higher, and the use frequency is higher and higher. Since the energy density of the battery has not been greatly broken through, the method for charging the electronic equipment by using the mobile power supply such as the charger is a commonly used method for improving the endurance of the electronic equipment.
However, when the conventional electronic device is charged, whether the electronic device is charged by using a portable power source or by using an adapter connected to a power socket, the battery of the electronic device is generally charged by using an external power source and the power is supplied to the load of the electronic device. In this case, the current of the external power supply is large, which increases the internal loss of the circuit, and thus, the efficiency of using the electric quantity in the portable power supply is low when the portable power supply is used for charging. For example, a nominal 5000mAh charger typically only discharges 3000mAh to 3500 mAh. Resulting in wasted battery capacity.
Disclosure of Invention
The invention provides an electronic device and a charging method thereof, which can select whether to charge a battery of the electronic device and supply power to a load of the electronic device by an external power supply or only supply power to the load of the electronic device by the external power supply according to needs after the electronic device is connected with the external power supply.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes an electrical load and a battery, and the electronic device further includes a charging circuit; the charging circuit includes: a conversion unit and a charging control unit; the input end of the conversion unit is connected with a charging interface of the electronic equipment, and the output end of the conversion unit is respectively connected with the input end of the charging control unit and the power supply input end of the electric load; the output end of the charging control unit is connected with the battery; the conversion unit is used for reducing the voltage of an external power supply accessed from a charging interface of the electronic equipment and outputting the voltage from the output end of the conversion unit so as to charge an electric load and charge a battery through the charging control unit; and the charging control unit is used for disconnecting the path between the input end and the output end of the charging control unit and stopping charging the battery after the preset condition is met.
In a second aspect, an embodiment of the present invention provides a charging method for an electronic device, which is applied to the electronic device provided in claim 1. The charging method comprises the following steps: the method comprises the steps that the voltage of an external power supply connected to a charging interface of the electronic equipment is reduced, so that an electric load is charged, and a battery is charged; after the preset condition is satisfied, the charging of the battery is stopped.
In the electronic device provided by the embodiment of the invention, when the conversion unit is used for reducing the voltage of the external power supply, and the power supply signal after the voltage reduction is used for supplying power to the electric load and charging the battery, the charging control unit can disconnect the path between the output end of the conversion unit and the battery after the preset condition is met according to the preset mode, so that the power supply signal after the voltage reduction can only supply power to the electric load and does not charge the battery. Further, it is possible to select whether to simultaneously charge the battery of the electronic device and supply power to the load of the electronic device by the external power supply or to stop charging the battery and supply power to the load of the electronic device only by the external power supply, as needed. For example, when the external power source is a mobile power source, the charging of the battery can be selected to be stopped, and only the external power source supplies power to the load of the electronic device, so as to improve the utilization efficiency of the electric quantity in the mobile power source; when the external power supply is a mains supply, the battery of the electronic equipment is charged and the load of the electronic equipment is supplied with power at the same time, so that the battery is charged as soon as possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another electronic device according to an embodiment of the present invention;
fig. 3 is a schematic view of a display interface of an electronic device according to an embodiment of the present invention;
fig. 4 is an external view of an electronic device and a vest according to an embodiment of the present invention;
fig. 5 is an external view of a thimble contact interface of an electronic device according to an embodiment of the present invention;
fig. 6 is a schematic view of an internal structure of a vest according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an internal structure of an electronic device and a vest according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a charging method for an electronic device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another electronic device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another electronic device according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1, an embodiment of the invention provides an electronic device 10, which includes an electrical load 101 and a battery 102. In a normal case, the battery 102 supplies power to the electrical load 101, so that the electronic device 10 performs corresponding functions. The power load 101 may specifically include a display screen, a processor, and other devices in the electronic device.
The electronic device 10 further comprises a charging circuit 103. Wherein the charging circuit 103 specifically includes: a conversion unit 1031, and a charging control unit 1032. Wherein,
the input terminal of the conversion unit 1031 is connected to the charging interface of the electronic device 10, and the output terminal thereof is connected to the node VPH _ PWR, the input terminal of the charging control unit 1032, and the power input terminal of the electric load 101. An output terminal of the charge control unit 1032 is connected to the battery 102.
Specifically, the charging interface of the electronic device 10 may refer to an interface in the electronic device for connecting with an external power source and inputting the voltage of the external power source into the electronic device. For example, the charging interface of the electronic device 10 may be a charging pin on the USB interface of the electronic device 10, or may be another interface pin connected to the charging pin on the USB interface.
The conversion unit 1031 is configured to step down a voltage of an external power source connected from a charging interface of the electronic device 10, and output the voltage from an output terminal of the conversion unit 1031, so as to supply power to the electric load 101 and charge the battery 102 through the charging control unit 1032;
and a charging control unit 1032, configured to disconnect a path between the input terminal and the output terminal of the charging control unit 1032 after a preset condition is satisfied, and stop charging the battery 102.
For example, at present, the external power supply connected to the USB interface of the household electronic device is generally about 5V. Therefore, after the external power supply is connected to the charging interface, the connected external power supply needs to be stepped down. Specifically, the voltage of the external power source is reduced to 5V to 3V-4.4V by the converting unit 1031 in fig. 1. Then, the power load 101 is supplied and the battery 102 is charged through the VPH _ PWR node. At this time, the output current of the converting unit 1031 is the sum of the current consumption of the power load 101 and the charging current of the battery 102 (specifically, the average current of the current power load of the conventional smartphone is about 400mA, and the charging current of the battery is about 2000 mA). This results in inefficient use of the power from the external power source. Particularly, when the external power supply is a portable power supply, efficient use of electric power in the portable power supply is affected.
Furthermore, in the embodiment of the present invention, the charging control unit 1032 is provided between the VPH _ PWR node and the battery 102, and the charging control unit 1032 is enabled to disconnect the path between the input terminal and the output terminal of the charging control unit to stop charging the battery when the preset condition is satisfied. At this time, the current at the VPH _ PWR node is equal to the power consumption of the electrical load 101 (i.e., the current is reduced from about 1900mA to about 400 mA), so the path loss is greatly reduced.
In addition, after the path between the input terminal and the output terminal of the charge control unit 1032 is disconnected, the voltage of the VPH _ PWR node can be maintained at the level of the rated operation voltage (typically, 4.4V). Therefore, the voltage difference between the input terminal and the output terminal of the converting unit 1031 is the voltage difference VBUS-VPH _ PWR between the charging interface and the VPH _ PWR node at this time, which is lower than the voltage difference VBUS-VBAT between the charging interface and the positive electrode of the battery 102 (the voltage VBAT of the power supply input terminal of the battery 102 is between 3-4.4V). For example, if the voltage of the external power supply is 5V, VBUS-VPH _ PWR is 5V-4.4V; VBUS-VBAT 5V-VBAT, VBUS-VPH _ PWR is typically lower than VBUS-VBAT, since VBAT can only reach 4.4V when the battery is fully charged. Thus, since the voltage drop between the input terminal and the output terminal of the converting unit 1031 becomes small, the conversion efficiency of the converting unit 1031 is improved, and the power supply efficiency is improved.
Specifically, the conversion unit includes: the PWM driving module, the first MOS tube, the second MOS tube, the inductor and the first capacitor; the PWM driving module is respectively connected with the grid electrode of the first MOS tube and the grid electrode of the second MOS tube; the drain electrode of the first MOS tube is connected with one end of a capacitor, and the other end of the capacitor is grounded; the drain electrode of the first MOS tube is also connected with a charging interface; the source electrode of the first MOS tube is connected with the drain electrode of the second MOS tube, and the source electrode of the first MOS tube is also connected with the output end of the conversion unit through an inductor; the source electrode of the second MOS tube is grounded. The PWM driving module is used for driving the first MOS tube and the second MOS tube to be switched on and off, the first MOS tube, the second MOS tube, the capacitor and the inductor form a buck voltage reduction circuit, and the voltage VBUS of an external power supply accessed by the charging interface is converted into the specified voltage VPH _ PWR.
Further, the conversion unit further includes: a current path control module and a fourth MOS tube. The current path control module is connected with a grid electrode of the fourth MOS tube, and a drain electrode of the first MOS tube is connected with the charging interface through a source electrode and a drain electrode of the fourth MOS tube.
A charge control unit comprising: the charging control module and the third MOS tube; the charging control module is connected with a grid electrode of a third MOS tube, a drain electrode of the third MOS tube is connected with the output end of the conversion unit, and a source electrode of the third MOS tube is connected with the battery; and the charging control module is used for controlling the third MOS tube to be in a cut-off state after a preset condition is met.
Specifically, as shown in fig. 2, the converting unit 1031 specifically includes: the circuit comprises a Current path control module (Current path control), a PWM driving module (PWM drivers), a first MOS transistor Q1, a second MOS transistor Q2, a fourth MOS transistor Q4, an inductor L1 and a first capacitor C1. The PWM driving module is used for driving the Q1 and the Q2 to be switched on and off, the Q1, the Q2, the C1 and the L1 form a buck voltage reduction circuit, and the voltage VBUS of an external power supply connected to the charging interface is converted into the designated voltage VPH _ PWR. The current path control module controls the on and off of the Q4. The charging control unit 1032 specifically includes: a charge control module (charger control) and a third MOS transistor Q3. The charging control module is used for controlling the on-off of the Q3.
In addition, the electronic device 10 may further include a logic control module (logic control), and the logic control module is configured to control the current path control module, the PWM driving module, and the battery control module to operate. Specifically, the logic control module may control the PWM driving module to control on/off of Q1 and Q2 according to the voltage value of the battery 102, so as to control the voltage of the VPH _ PWR node. In addition, the logic control module also controls the battery control module to control the Q3 to be turned off after the preset condition is met.
In one implementation, the charging control unit 1032 is specifically configured to disconnect a path between the input and the output of the charging control unit 1032 when it is detected that the external power source is the mobile power source and it is detected that the power amount of the battery 102 is greater than the power amount threshold.
Illustratively, the remaining capacity of the battery 102 may be detected, for example, after the electronic device 10 is connected to a mobile power source. If the remaining power of the battery 102 is higher than the predetermined power (e.g., 30% remaining power), the input terminal and the output terminal of the charging control unit 1032 are disconnected, and the charging of the battery 102 is stopped. At this time, the mobile power supply supplies power only to the power load of the electronic device 10, so the current is small; meanwhile, the voltage of the VPH _ PWR node is high, so that the conversion efficiency of the conversion unit 1031 is high, and the power supply efficiency is improved. The mobile power supply can supply power to the electronic equipment 10 for a longer time, and the standby time and the endurance time of the electronic equipment 10 are prolonged.
Additionally, in another implementation, the user may also select when to have the external power source alone power the electronic device without charging the battery. Therefore, the charging control unit 1032 is also specifically configured to disconnect the path between the input terminal and the output terminal of the charging control unit 1032 when a preset operation by the user is detected.
In addition, in the embodiment of the invention, the situation of the residual capacity of the mobile power supply can be directly and clearly known by a user. The electronic device 10 provided by the embodiment of the present invention further includes a display module 104. The display module 104 is configured to display a circuit of the mobile power supply on a display interface of the electronic device when the external power supply is the mobile power supply.
For example, as shown in fig. 3, after acquiring the power information of the mobile power supply in some way, the electronic device displays the power of the mobile power supply on the interface of the mobile phone through the display module 104.
Specifically, in order to keep the display interface concise and beautiful, the circuit of the mobile power supply is displayed on the display interface of the electronic device, and the circuit is arranged at a position parallel to the position where the electric quantity of the battery 102 of the electronic device 10 is displayed.
In addition, in one implementation, the electronic device 10 provided by the embodiment of the invention can be used in cooperation with the mobile power supply 20 fixed on the electronic device 10. The portable power source that can be fixed to the electronic device 10 may be a vest that is fixed to the back of the electronic device 10. The shape of the vest can resemble an existing protective case for electronic equipment.
Illustratively, as shown in FIG. 4, electronic device 10 has a pin contact interface on the device back surface and a corresponding second pin contact interface on the inner surface of a vest 20a that mates with electronic device 10. Specifically, in practical application, the contact interface of the thimble on the electronic device 10 may be a metal groove. The contact interface of the thimble on the vest 20a may be a metal raised spring corresponding to the metal recess. The relationship of the pin contact interfaces on the electronic device 10 to the pin contact interfaces on the vest 20a may be similar to the relationship of a male-female connector. In addition, it should be noted that the contact of the thimble contact interface in the embodiment of the present invention may be in a circular shape, a square shape, or other shapes, and the present invention is not limited thereto.
The vest 20a may be mounted to the back of the electronic device 10 in use. After the vest 20a is mounted on the back of the electronic device 10, the vest 20a is coupled to the pin contact interface on the electronic device 10, thereby allowing power from the vest 20a to be transferred to the electronic device 10. The electronic device 10 may be a mobile phone, a tablet computer, or the like.
Illustratively, as shown in fig. 5, is a photograph of a pin contact interface on the back of an electronic device 10, which includes 10 contacts. In use, there are 10 ejector pin spring pieces at corresponding positions on the vest 20a for coupling with 10 contacts on the electronic device 10.
Specifically, table 1 below provides an interface definition of a thimble contact interface:
TABLE 1
Fig. 6 is a schematic structural diagram of the mobile power supply 20 according to the embodiment of the present invention. In conjunction with the interface definitions of table 1, in fig. 6, the detection circuit is configured to send a detection signal to the electronic device 10 through the DET pin, so that the electronic device 10 detects the attachment or detachment of the portable power source 20. And the electricity meter chip is used for detecting the electricity quantity information of the battery of the mobile power supply 20 and sending the electricity quantity information to the electronic equipment 10 through the HDQ terminal pin. The main battery circuit in the portable power source 20 charges the electronic device 10 through VBUS, i.e., connects to a charging interface of the electronic device 10. The battery main circuit in the mobile power supply 20 also receives an enable signal of the electronic device 10 through the EN terminal pin, and starts supplying power to the electronic device 10 in response to the enable signal. In addition, the USB interface of the mobile power supply is connected through the USB _ D + terminal pin and the USB _ D-terminal pin of the thimble contact interface, so that the data transmission task of the electronic device 10 is completed through the USB interface of the mobile power supply 20.
The connection and operation modes of the electronic device 10 and the mobile power supply 20 are combined. As shown in fig. 7, in the embodiment of the present invention, the electronic device 10 further includes: the first USB interface, the first thimble contact interface and the power switch unit U2. After the mobile power source 20 is fixed on the electronic device, the first pin contact interface is used for coupling with a second pin contact interface on the mobile power source. The charging terminal pin of the first USB interface and the charging terminal pin of the first thimble contact interface are respectively connected to the power switch unit U2, and the power switch unit U2 is further connected to the charging interface. The position of the charging interface is exemplarily marked in fig. 7.
Specifically, as shown in fig. 7, the charging circuit 103 is integrated into a Power Management IC (PMIC) U1. The power switch unit U2 is connected to the charging circuit 103 via a charging interface.
And the power switch unit U2 is configured to, when the first thimble contact interface is coupled with the second thimble contact interface on the mobile power supply 20, turn on the charging terminal pin of the first thimble contact interface with the charging interface.
When the portable power source 20 is installed on the electronic device 10, the second pin contact interface is coupled to the first pin contact interface, so that the portable power source 20 outputs an external power voltage to the charging interface through the charging pin of the first pin contact interface.
For example, as shown in fig. 7, when the mobile power supply 20 is installed on the electronic device 10, the electronic device 10 detects whether the mobile power supply is installed through the DET pin of the first pin contact interface. After detecting that the mobile power supply is installed, the power switch U2 connects the VBUS terminal pin of the first thimble contact interface with the charging interface, so that the mobile power supply 20 can charge the electronic device 10 through the VBUS terminal pin.
In the above embodiment of the present invention, after the first pin contact interface of the electronic device 10 is coupled to the second pin contact interface of the mobile power supply 20, the power switch unit will conduct the charging pin of the first pin contact interface with the charging interface, so as to charge the mobile phone 10 by using the mobile power supply 20. Therefore, when the portable power source is not worn at ordinary times, the charging terminal pin of the first thimble contact interface and the charging interface are isolated and uncharged, and therefore the reliability of the circuit is guaranteed.
Further, as shown in fig. 7, the electronic device 10 further includes a USB switching unit U3. The first pin contact interface further includes a data transmission terminal pin, such as the USB _ D + terminal pin and the USB _ D-terminal pin. The data transmission terminal pin is used for being connected with a second USB interface on the mobile power supply 20, and the specific data transmission terminal pin USB _ D +, USB _ D-is connected with the second USB interface on the mobile power supply 20 through a second thimble contact interface.
And the USB switch unit U3 is respectively connected with the first USB interface, the first thimble contact interface and the data transmission terminal pin.
And the USB switch unit U3 is used for selecting one of the first USB interface or the first thimble contact interface according to a preset mode and executing a data interaction task of the electronic equipment.
In the above embodiment of the present invention, it is considered that after the portable power source 20 is installed, the first USB interface carried by the electronic device 10 may be blocked by the portable power source 20, and thus is inconvenient to use. Therefore, by providing the USB switching unit U3 in the electronic device 10, the data interaction task can be completed by using the second USB interface on the portable power source 20 after the portable power source 20 is installed.
In one implementation, as shown in fig. 7, in the electronic device 10, the first pin contact interface further includes a DET detection pin and an EN enable pin.
When the DET detection pin receives the preset signal, the electronic device 10 determines that the first thimble contact interface is coupled with the second thimble contact interface on the mobile power supply 20;
after determining that the first thimble contact interface is coupled with the second thimble contact interface, the electronic device sends an enable signal to the mobile power supply 20 through the EN enable pin, so that the mobile power supply 20 outputs an external power supply voltage to the charging interface through the charging pin VBUS of the first thimble contact interface in response to the enable signal, and charges the electronic device 10.
In one implementation, as shown in fig. 7, the first thimble contact interface further includes an HDQ communication terminal pin; the electronic device 10 obtains the power information of the mobile power supply 20 through the HDQ communication terminal pin. So as to display the power information of the mobile power supply 20 on the interface of the electronic device.
According to the electronic equipment provided by the embodiment of the invention, whether the external power supply simultaneously charges the battery of the electronic equipment and supplies power to the load of the electronic equipment or the external power supply only supplies power to the load of the electronic equipment after the battery charging is stopped can be selected according to requirements. For example, when the external power source is a mobile power source, the charging of the battery can be selected to be stopped, and only the external power source supplies power to the load of the electronic device, so as to improve the utilization efficiency of the electric quantity in the mobile power source; when the external power supply is the power adapter, the battery of the electronic equipment is charged and the load of the electronic equipment is supplied with power at the same time, so that the battery is charged as soon as possible.
It should be noted that, in the above embodiments of the present invention, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. For example, the converting unit 1031 and the charging control unit 1032 may respectively realize corresponding functions by two independent hardware components, or the converting unit and the charging control unit may be operated by the same hardware component. The invention is not limited thereto.
Example two:
the embodiment of the present invention further provides a charging method for an electronic device, which is applied to charging the electronic device 10 provided in the first embodiment. As shown in fig. 8, the method includes:
s301, the voltage of an external power supply connected to a charging interface of the electronic equipment is reduced, so that the electronic equipment is charged to an electric load and the battery is charged.
And S302, stopping charging the battery after the preset condition is met.
Optionally, S302 may specifically include:
and S302a, when the external power supply is detected to be the mobile power supply and the electric quantity of the battery is detected to be larger than the electric quantity threshold value, stopping charging the battery.
Or, S302 may specifically further include:
s302b, when the preset operation by the user is detected, the charging of the battery is stopped.
The charging method for electronic equipment provided by the embodiment of the present invention can refer to the corresponding content of the first embodiment, and thus, the technical problems, specific implementation steps, and technical effects achieved by the charging method for electronic equipment provided by the embodiment of the present invention are not described herein again.
Fig. 9 shows a schematic diagram of a possible structure of the electronic device according to the above-described embodiment, in the case of an integrated unit. The electronic device 40 includes: a processing module 401, a communication module 402 and a storage module 403. The processing module 401 is configured to control and manage the actions of the electronic device 40, for example, the processing module 401 is configured to support the electronic device 40 to execute the content executed by the charging circuit 103 in fig. 1. The communication module 402 is used to support communication of the electronic device 40 with other entities. The memory module 403 is used for storing program codes and data of the electronic device.
The processing module 401 may be a processor or a controller, and may be, for example, a certain type of buck charging chip, a Central Processing Unit (CPU), a general purpose processor (CPU), a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The communication module 402 may be a transceiver, a transceiving circuit or a communication interface, etc. The storage module 403 may be a memory.
When the processing module 401 is a processor as shown in fig. 10, the communication module 402 is a transceiver as shown in fig. 10, and the storage module 403 is a memory as shown in fig. 10, the electronic device according to the embodiment of the present invention may be the following electronic device 50.
Referring to fig. 10, the electronic device 50 includes: a processor 501, a transceiver 502, a memory 503, and a bus 504.
The processor 501, the transceiver 502 and the memory 503 are connected to each other through a bus 504; the bus 504 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
Processor 501 may be a general-purpose Central Processing Unit (CPU), microprocessor, Application-Specific Integrated Circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present invention.
The Memory 503 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.
The memory 503 is used for storing application program codes for executing the present invention, and is controlled by the processor 501. The transceiver 502 is used for receiving contents input by an external device, and the processor 501 is used for executing application program codes stored in the memory 503, thereby implementing the charging method of the electronic device in the embodiment of the present invention.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided by the present invention, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the invention are all or partially effected when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An electronic device, comprising an electrical load and a battery, characterized in that the electronic device further comprises a charging circuit; the charging circuit includes: a conversion unit and a charging control unit; wherein,
the input end of the conversion unit is connected with a charging interface of the electronic equipment, and the output end of the conversion unit is respectively connected with the input end of the charging control unit and the power supply input end of the electric load; the output end of the charging control unit is connected with the battery;
the conversion unit is used for reducing the voltage of an external power supply accessed from a charging interface of the electronic equipment, outputting the voltage from an output end of the conversion unit so as to supply power to the power load, and charging the battery through the charging control unit;
and the charging control unit is used for disconnecting a path between the input end and the output end of the charging control unit after a preset condition is met, and stopping charging the battery through the charging control unit.
2. The electronic device according to claim 1, wherein the charging control unit is specifically configured to disconnect a path between the input terminal and the output terminal of the charging control unit when the external power source is detected to be a mobile power source and the battery capacity is detected to be greater than a capacity threshold.
3. The electronic device according to claim 1, wherein the charging control unit is configured to disconnect a path between the input terminal and the output terminal of the charging control unit when detecting a preset operation of a user.
4. The electronic device of claim 1, wherein the conversion unit comprises: the PWM driving module, the first MOS tube, the second MOS tube, the inductor and the first capacitor; the PWM driving module is respectively connected with the grid electrode of the first MOS tube and the grid electrode of the second MOS tube; the drain electrode of the first MOS tube is connected with one end of the capacitor, and the other end of the capacitor is grounded; the drain electrode of the first MOS tube is also connected with the charging interface; the source electrode of the first MOS tube is connected with the drain electrode of the second MOS tube, and the source electrode of the first MOS tube is also connected with the output end of the conversion unit through the inductor; and the source electrode of the second MOS tube is grounded.
5. The electronic device according to claim 1, wherein the charge control unit includes: the charging control module and the third MOS tube; the charging control module is connected with a grid electrode of the third MOS tube, a drain electrode of the third MOS tube is connected with the output end of the conversion unit, and a source electrode of the third MOS tube is connected with the battery;
the charging control module is used for controlling the third MOS tube to be in a cut-off state after a preset condition is met.
6. The electronic device of claim 1, further comprising a first USB interface, a first pin contact interface, and a power switch unit; after the mobile power supply is fixed on the electronic equipment, the first thimble contact interface is used for being coupled with a second thimble contact interface on the mobile power supply;
wherein:
the charging terminal pin of the first USB interface and the charging terminal pin of the first thimble contact interface are respectively connected with the power switch unit, and the power switch unit is also connected with the charging interface;
the power switch unit is used for conducting a charging terminal pin of the first thimble contact interface with the charging interface when the first thimble contact interface is coupled with a second thimble contact interface on the mobile power supply; when the second thimble contact interface is coupled with the first thimble contact interface, the mobile power supply can output external power supply voltage to the charging interface through the charging terminal pin of the first thimble contact interface.
7. The electronic device of claim 6, wherein the first thimble contact interface further comprises a detect pin and an enable pin;
when the detection terminal pin receives a preset signal, the electronic equipment determines that the first thimble contact interface is coupled with the second thimble contact interface on the mobile power supply;
after determining that the first thimble contact interface is coupled with the second thimble contact interface, the electronic device sends an enable signal to the mobile power supply through the enable pin, so that the mobile power supply responds to the enable signal and outputs an external power supply voltage to the charging interface through the charging pin of the first thimble contact interface.
8. The electronic device of claim 6, wherein the first thimble contact interface further comprises a communication terminal pin;
and the electronic equipment acquires the electric quantity information of the mobile power supply through the communication terminal pin.
9. A charging method for an electronic device, applied to the electronic device according to any one of claims 1 to 8, comprising:
the method comprises the steps that the voltage of an external power supply connected to a charging interface of the electronic equipment is reduced, so that power is supplied to a power load, and a battery is charged;
stopping charging the battery after a preset condition is met.
10. The method for charging an electronic device according to claim 9, wherein the stopping of charging the battery after the preset condition is met includes:
when the external power supply is detected to be a mobile power supply and the electric quantity of the battery is detected to be larger than an electric quantity threshold value, stopping charging the battery;
or, when a preset operation by a user is detected, stopping charging the battery.
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| CN201910047190.5A CN109802457A (en) | 2019-01-18 | 2019-01-18 | A kind of electronic equipment and its charging method |
| CN201910473448.8A CN110098652B (en) | 2019-01-18 | 2019-05-31 | Mobile phone, mobile phone main body device and mobile phone endurance device |
| CN201910472560.XA CN110112810A (en) | 2019-01-18 | 2019-05-31 | A kind of mobile phone shell and charging method |
| CN201910538716.XA CN111464672A (en) | 2019-01-18 | 2019-06-20 | An electronic device and charging method thereof |
| CN201910538609.7A CN110138942A (en) | 2019-01-18 | 2019-06-20 | Terminal and processing method |
| CN201910539435.6A CN110113462A (en) | 2019-01-18 | 2019-06-20 | Terminal and processing method |
| CN201910538715.5A CN111464671B (en) | 2019-01-18 | 2019-06-20 | Electronic equipment and charging method thereof |
| CN201910538621.8A CN110191215B (en) | 2019-01-18 | 2019-06-20 | Terminal and processing method |
| CN201910631700.3A CN110225168A (en) | 2019-01-18 | 2019-07-12 | Terminal and processing method |
| CN201910630822.0A CN110225167B (en) | 2019-01-18 | 2019-07-12 | Terminal and processing method |
| CN201910895312.6A CN111464673B (en) | 2019-01-18 | 2019-09-20 | An electronic device and charging method thereof |
| CN201911245161.6A CN111464674B (en) | 2019-01-18 | 2019-12-06 | Electronic equipment and temperature control method thereof during charging |
| CN201911277043.3A CN111463842B (en) | 2019-01-18 | 2019-12-12 | Electronic equipment and communication method thereof |
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| CN201910472560.XA Pending CN110112810A (en) | 2019-01-18 | 2019-05-31 | A kind of mobile phone shell and charging method |
| CN201911277043.3A Active CN111463842B (en) | 2019-01-18 | 2019-12-12 | Electronic equipment and communication method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110098652B (en) | 2021-05-07 |
| CN111463842A (en) | 2020-07-28 |
| CN110112810A (en) | 2019-08-09 |
| CN111463842B (en) | 2022-01-07 |
| CN110098652A (en) | 2019-08-06 |
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