CN109378868B - Electronic equipment power supply circuit and electronic equipment - Google Patents
Electronic equipment power supply circuit and electronic equipment Download PDFInfo
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- CN109378868B CN109378868B CN201811073936.1A CN201811073936A CN109378868B CN 109378868 B CN109378868 B CN 109378868B CN 201811073936 A CN201811073936 A CN 201811073936A CN 109378868 B CN109378868 B CN 109378868B
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- power supply
- power management
- battery cell
- protection plate
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The application provides an electronic equipment supply circuit and electronic equipment, wherein, the circuit includes: the battery cell management system comprises a battery cell, a first battery cell protection plate, a second battery cell protection plate, a first power management assembly and a second power management assembly; the output end of the battery cell is respectively connected with the input end of the first battery cell protection plate and the input end of the second battery cell protection plate; the output end of the first battery core protection plate is connected with the input end of the first power management assembly; the output end of the first power supply management component is used for providing a first system power supply voltage for the electronic equipment; the output end of the second battery core protection plate is connected with the input end of the second power management assembly; the output end of the second power management component is used for providing a second power supply voltage for the peripheral equipment, wherein the second power supply voltage is larger than the first power supply voltage. Through setting up two electric core protection boards, make to supply power to external equipment and separately use different electric core protection boards to the system power supply, eliminated the influence of the voltage drop of heavy current on electric core protection board to system supply voltage.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to a power supply circuit of electronic equipment and the electronic equipment.
Background
With the continuous development of electronic equipment technology, electronic equipment can provide electric energy for other equipment while working normally, such as the OTG function of electronic equipment, wireless charging function and the like.
However, when the electronic device supplies power to other devices, if the supply current is too large, the system voltage of the electronic device may be lower than the minimum voltage requirement, and the system of the electronic device may be shut down accidentally.
Disclosure of Invention
The application provides a power supply circuit of electronic equipment and the electronic equipment, which are used for solving the problem that the accidental shutdown of the electronic equipment can be caused by overlarge current when other equipment is supplied with power in the related art.
An embodiment of an aspect of the present application provides a power supply circuit for an electronic device, including: the battery cell management system comprises a battery cell, a first battery cell protection plate, a second battery cell protection plate, a first power management assembly and a second power management assembly;
the output end of the battery cell is respectively connected with the input end of the first battery cell protection plate and the input end of the second battery cell protection plate;
the output end of the first battery core protection board is connected with the input end of the first power management assembly;
the output end of the first power management component is used for providing a first system power supply voltage for the electronic equipment;
the output end of the second battery cell protection plate is connected with the input end of the second power management assembly;
the output end of the second power management component is used for providing a second power supply voltage for peripheral equipment, wherein the second power supply voltage is greater than the first power supply voltage.
The electronic equipment power supply circuit of this application embodiment through setting up two electric core protection shields for supply power to peripheral equipment and separately use different electric core protection shields to the system power supply, thereby eliminate the influence of the pressure drop of heavy current on electric core protection shield to system supply voltage, reduced the risk that the electronic equipment system shut down because of system voltage crosses low and accident.
An embodiment of another aspect of the present application provides an electronic device, including: a power supply circuit as described in an embodiment of an aspect above.
An embodiment of another aspect of the present application provides an electronic device, including: a host end and a screen end which are separately arranged;
the host side comprises a power supply circuit as described in the embodiment of the aspect;
and the power supply end of the screen end is connected with the output end of a second power management component in the power supply circuit.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another electronic device power supply circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another electronic device power supply circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The electronic device power supply circuit and the electronic device according to the embodiments of the present application are described below with reference to the drawings.
The embodiment of the application provides an electronic equipment power supply circuit, when utilizing electronic equipment to charge other equipment in the correlation technique, when other equipment load is great or electronic equipment carries out the fast charge to other equipment, the electric current is great, and electronic equipment's electric core internal resistance and protection shield direct current impedance arouse great voltage drop easily, cause system voltage to hang down excessively to lead to the problem that the electronic equipment system shut down by accident.
The electronic equipment power supply circuit that this application embodiment provided includes: the battery comprises a battery cell, a first battery cell protection plate, a second battery cell protection plate, a first power management assembly and a second power management assembly, wherein the output end of the battery cell is connected with the input end of the first battery cell protection plate and the input end of the second battery cell protection plate respectively, the output end of the first battery cell protection plate is connected with the input end of the first power management assembly, the output end of the first power management assembly is used for providing a first power supply voltage of a system for electronic equipment, the output end of the second battery cell protection plate is connected with the input end of the second power management assembly, the output end of the second power management assembly is used for providing a second power supply voltage for peripheral equipment, and the second power supply voltage is greater than the first power supply voltage. Therefore, through the arrangement of the two battery core protection plates, different battery core protection plates are separately used for supplying power to peripheral equipment and supplying power to a system, the influence of the voltage drop of large current on the battery core protection plates on the system power supply voltage is eliminated, and the risk of accidental shutdown of the electronic equipment system due to too low system voltage is reduced.
Fig. 1 is a schematic structural diagram of a power supply circuit of an electronic device according to an embodiment of the present disclosure.
As shown in fig. 1, the electronic device power supply circuit includes: a battery cell 110, a first battery cell protection plate 120, a second battery cell protection plate 130, a first power management assembly 140, and a second power management assembly 150.
The output end of the battery cell 110 is connected to the input end of the first battery cell protection plate 120 and the input end of the second battery cell protection plate 130, respectively. That is, the battery cells 110 are connected to two battery cell protection plates, respectively. The battery core protection board is an integrated circuit board which mainly protects the rechargeable battery.
The output end of the first cell protection plate 120 is connected to the input end of the first power management assembly 140. The output of the first power management component 140 is used to provide a system first supply voltage for the electronic device.
The output end of the second battery cell protection plate 130 is connected to the input end of the second power management assembly 150, and the output end of the second power management assembly 150 is used for providing a second power supply voltage for the peripheral device. The second power supply voltage is greater than the first power supply voltage, that is, the power supply voltage to the external device is greater than the power supply voltage to the electronic device system.
The peripheral device may be other electronic devices, for example, the electronic device charges the other electronic devices through the OTG connection line. Or, the electronic device includes a host end and a screen end that are separated, and the screen end is powered by the host end, that is, for the host end, the screen end is a peripheral device.
In practical applications, the second power management component 150 may output a corresponding supply voltage according to the supply voltage requirement of the peripheral device.
In this embodiment, two electric core protection boards are connected to the output of electric core 110, the output through an electric core protection board supplies power to the electronic equipment system, the output through another electric core protection board is the peripheral equipment power supply, make the external equipment heavy current power supply separately use different electric core protection boards with the system power supply, thereby eliminated the influence of the voltage drop of heavy current at electric core protection board to electronic equipment system voltage, reduced the risk that the electronic equipment system shut down because of system voltage crosses the mistake unexpectedly.
In practical application, the power supply circuit of the electronic equipment provided by the embodiment of the application can be utilized to supply power to the electronic equipment, and meanwhile, the external equipment is charged with large current, and the risk of unexpected shutdown of the electronic equipment system is relatively low.
Further, in a possible implementation manner of the embodiment of the present application, a fuel gauge may be connected in series between the battery cell protection board and the power management component to obtain a fuel value on the path. Fig. 2 is a schematic structural diagram of another electronic device power supply circuit according to an embodiment of the present application.
As shown in fig. 2, the electronic device power supply circuit may further include: a first electricity meter 160 and a second electricity meter 170.
The output end of the first cell protection plate 120 is connected to the input end of the first electricity meter 160, and the output end of the first electricity meter 160 is connected to the first power management component 140, so that the first electricity meter 160 is connected in series between the first cell protection plate 120 and the first power management component 140. Thus, the amount of electricity output from the first cell protection plate 120 can be detected by the first electricity meter 160.
The output end of the second battery cell protection plate 130 is connected to the input end of the second electricity meter 170, and the output end of the second electricity meter 170 is connected to the second power management assembly 150, so that the second electricity meter 170 is connected in series between the first battery cell protection plate 130 and the second power management assembly 150. Therefore, the second electricity meter 170 can be used to detect the amount of electricity output by the second cell protection plate 170.
In this embodiment, the first electricity meter 160 and the second electricity meter 170 may respectively send information carrying the detected electricity quantity value to the first power management component 140 and the second power management component 150.
Further, the first power management component 140 may be communicatively connected to the second power management component 150, for example, by using a wireless communication link for communication, and then the first power management component 140 may obtain the electric quantity value output by the second electric meter 170 from the second power management component 150, and determine the remaining electric quantity value of the battery cell according to the electric quantity value output by the first electric meter 160 and the electric quantity value output by the second electric meter 170.
Assuming that the total capacity of the battery cell is Q, the electric quantity value detected by the electric meter is a negative value when the battery cell discharges, and the electric quantity value detected by the electric meter is a positive value when the battery cell charges. If the electric quantity value output by the first electric quantity meter 160 is QA and the electric quantity value output by the second electric quantity meter 170 is QB, the remaining electric quantity value of the battery cell is Qt ═ Q + QA + QB.
In the process of supplying power to the peripheral equipment by the electronic equipment, the battery cell also supplies power to the electronic equipment system, the residual electric quantity value of the battery cell is gradually reduced, and in order to improve the single endurance time of the battery cell, the first power management assembly 140 can also adjust the power consumption mode of the electronic equipment system according to the residual electric quantity value of the battery cell.
For example, when the battery cell remaining power value is lower than the preset power threshold, the power consumption mode of the electronic device system is automatically switched to the low power mode, such as closing the background application, or closing the network application to automatically acquire information from the network side, reduce the brightness of the system display screen, close the system prompt tone, and the like. Thus, power consumption of the electronic device system is reduced.
According to the power supply circuit of the electronic equipment, the battery cell can discharge and simultaneously supply power to the electronic equipment system and the peripheral equipment. Since the battery of the electronic device is usually a rechargeable battery, the battery cell needs to be charged. Fig. 3 is a schematic structural diagram of another electronic device power supply circuit according to an embodiment of the present application.
In this embodiment, as shown in fig. 3, the first power management component 140 may further be connected to a charging interface of the electronic device.
That is, when the battery cell is charged, the battery cell may be charged through the path where the first battery cell protection plate 120 is located; when the cells are discharged, the discharge may be performed through two paths, namely, the first cell protection plate 120 and the second cell protection plate 130.
In this embodiment, the output terminal of the second power management component 150 is used for supplying power to the peripheral device. In practical applications, the power supply voltages of different peripheral devices may be different, so as to be able to supply power to peripheral devices with different power supply voltages. Further, in this embodiment, the second power management component 150 may further adjust the working state of the voltage conversion circuit in the second power management component 150 according to the obtained power supply voltage of the peripheral device, so that the voltage output by the output terminal of the second power management component 150 is consistent with the power supply voltage of the peripheral device.
The voltage converting circuit in the second power management component 150 may be a Boost circuit, such as a Boost circuit, and the voltage output by the Boost circuit is adjustable.
For example, if the supply voltage of the peripheral device is 5V, the boost circuit may output 5V according to the supply voltage requirement of the peripheral device.
The second power management component 150 may determine the peripheral device voltage based on the peripheral device type when determining the peripheral device voltage. Specifically, after the second power management component 150 is connected to the peripheral device, the second power management component 150 may identify the type of the peripheral device, determine the power supply voltage of the peripheral device according to the type of the peripheral device, and further adjust the operating state of the voltage change circuit to output the power supply voltage required by the peripheral device. The connection between the second power management component 150 and the peripheral device may be a wired connection or a wireless connection.
For example, the second power management component 150 determines the supply voltage to be 5v when the peripheral device is identified as an a device, 4.5v when the peripheral device is identified as a b device, and so on.
Alternatively, the second power management component 150 determines the peripheral device power supply voltage according to the obtained power supply instruction. Specifically, after the second power management component 150 is connected to the peripheral device, a user may select or input a power supply voltage for the peripheral device, at this time, the second power management component 150 may obtain a power supply instruction, where the power supply instruction carries the power supply voltage, and then the second power management component 150 extracts the power supply voltage in the power supply instruction, so as to adjust a working state of the voltage conversion circuit according to the power supply voltage, so as to output the power supply voltage required by the peripheral device, and supply power to the peripheral device.
In order to implement the above embodiments, an electronic device is further provided in the embodiments of the present application. The electronic equipment comprises the power supply circuit in the embodiment. That is, the power supply circuits described in the above embodiments are all provided in the electronic device, and thus the electronic device can be used to supply power to other electronic devices.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Further, in a possible implementation form of the embodiment of the present application, as shown in fig. 4, the electronic device may further include: the host side 100 and the screen side 200 are separately provided.
The battery cell 110, the first battery cell protection plate 120, and the first power management assembly 140 in the power supply circuit are disposed at the host 100. The second battery cell protection plate 130 and the second power management assembly 150 are disposed at the screen end 200.
Specifically, the output end of the battery cell 110 in the host terminal 100 is connected to the input end of the first battery cell protection plate 120 and the input end of the second battery cell protection plate 130 in the screen terminal, the output end of the first battery cell protection plate 120 is connected to the input end of the first power management component 140, and the first power management component 140 is configured to supply power to the host terminal system. The connection between the output end of the battery cell 110 and the input end of the second battery cell protection plate 130 may be a wired connection or a wireless connection.
The input end of the second battery cell protection plate 130 in the screen end 200 is connected to the output end of the battery cell 110 in the host end 100, the output end of the second battery cell protection plate 130 is connected to the input end of the second power management assembly 150, and the second power management assembly 150 can provide voltage to supply power to the screen end 200. Thus, the host terminal 100 can supply power to the screen terminal 200 through the second cell protection plate 130.
Further, a first electricity meter 160 connected in series between the first cell protection plate 120 and the first power management assembly 140 is located at the host end 100, and a second electricity meter 170 connected in series between the second cell protection plate 130 and the second power management assembly 150 is located at the screen end 200.
The electronic equipment of this application embodiment, the output of electric core is served with the host computer respectively and is served the electric core protection shield of electric core and the electric core protection shield of screen end and be connected, separately uses different electric core protection shields to host computer system power supply and to the power supply of screen end from this, can eliminate the influence of the voltage drop of heavy current on screen end electric core protection shield to host computer system voltage, reduces the risk that host computer system accident shut down.
In order to implement the above embodiments, another electronic device is further provided in the embodiments of the present application. The electronic device in the above embodiment may include a host end and a screen end, where the first cell protection board and the second cell protection board are respectively disposed at the host end and the screen end.
Fig. 5 is a schematic structural diagram of another electronic device according to an embodiment of the present application.
As shown in fig. 5, the electronic device may include a host side 300 and a screen side 400 that are separately provided.
The host terminal 300 includes the power supply circuit described in the above embodiment, and the power supply terminal of the screen terminal 400 is connected to the output terminal of the second power management component 150 in the power supply circuit.
The power supply circuit includes a battery cell 110, a first battery cell protection plate 120, a second battery cell protection plate 130, a first power management assembly 140, and a second power management assembly 150, and the specific connection relationship refers to the contents described in the above embodiments.
In this embodiment, the power supply terminal of the screen terminal 400 is connected to the output terminal of the second power management component 150 in the host terminal 300, so that the host terminal 300 can supply a large current to the screen terminal 400. The power supply terminal of the screen terminal 400 and the output terminal of the second power management component 150 may be connected by a wire or wirelessly. That is, the host 300 may supply power to the screen in a wired or wireless manner.
The electronic equipment of this application embodiment, the output of host computer end upper electricity core is connected with two electric core protection boards of host computer end respectively, and the feeder ear of screen end is connected with the second power management subassembly of host computer end, separately uses different electric core protection boards to the power supply of host computer end system and to the power supply of screen end from this, can eliminate the influence of the voltage drop of heavy current on the electric core protection board that is used for to the power supply of screen end to host computer end system voltage, reduces the risk that host computer end system accident shut down.
In the description of the present specification, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (8)
1. An electronic device power supply circuit, comprising: the battery cell management system comprises a battery cell, a first battery cell protection plate, a second battery cell protection plate, a first power management assembly and a second power management assembly;
the output end of the battery cell is respectively connected with the input end of the first battery cell protection plate and the input end of the second battery cell protection plate;
the output end of the first battery core protection board is connected with the input end of the first power management assembly;
the output end of the first power management component is used for providing a first system power supply voltage for the electronic equipment;
the output end of the second battery cell protection plate is connected with the input end of the second power management assembly;
the output end of the second power management component is used for providing a second power supply voltage for peripheral equipment, wherein the second power supply voltage is greater than the first power supply voltage;
the second power management component is further used for adjusting the working state of a voltage conversion circuit in the second power management component according to the acquired power supply voltage of the peripheral equipment;
the second power management component is used for determining the power supply voltage of the peripheral equipment according to the type of the accessed peripheral equipment; or the second power management component is used for determining the power supply voltage of the peripheral equipment according to the acquired power supply instruction.
2. The circuit of claim 1, further comprising: the first electricity meter is connected in series between the first battery cell protection plate and the first power management assembly;
and the second electricity meter is connected between the second electric core protection plate and the second power management assembly in series.
3. The circuit of claim 2, wherein the first power management component is communicatively coupled to the second power management component;
the first power management assembly is configured to determine a remaining electric quantity value of the battery cell according to the electric quantity value output by the first electric quantity meter and the electric quantity value output by the second electric quantity meter.
4. The circuit of claim 3, wherein the first power management component is further configured to adjust a power usage mode of the electronic device according to a remaining electric quantity value of the battery cell.
5. The circuit of any of claims 1-4, wherein the first power management component is further connected to a charging port of the electronic device.
6. An electronic device, comprising: a supply circuit as claimed in any one of claims 1 to 5.
7. The electronic device of claim 6, further comprising: a host end and a screen end which are separately arranged;
the battery cell, the first battery cell protection board and the first power management assembly in the power supply circuit are arranged at the host end;
the second battery core protection plate and the second power management assembly are arranged at the screen end.
8. An electronic device, comprising: a host end and a screen end which are separately arranged;
the host side comprising a power supply circuit as claimed in any one of claims 1 to 6;
and the power supply end of the screen end is connected with the output end of a second power management component in the power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073936.1A CN109378868B (en) | 2018-09-14 | 2018-09-14 | Electronic equipment power supply circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073936.1A CN109378868B (en) | 2018-09-14 | 2018-09-14 | Electronic equipment power supply circuit and electronic equipment |
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| CN109378868A CN109378868A (en) | 2019-02-22 |
| CN109378868B true CN109378868B (en) | 2021-05-14 |
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| CN201811073936.1A Active CN109378868B (en) | 2018-09-14 | 2018-09-14 | Electronic equipment power supply circuit and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912213A (en) * | 2018-09-17 | 2020-03-24 | Oppo广东移动通信有限公司 | Electronic equipment, power supply method of electronic equipment and storage medium |
| CN113556642A (en) * | 2021-07-09 | 2021-10-26 | 维沃移动通信有限公司 | Electronic equipment assembly and terminal equipment |
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| CN102938569A (en) * | 2011-08-15 | 2013-02-20 | 联想(北京)有限公司 | Method and device for supplying power to electronic device and electronic device |
| CN103035966A (en) * | 2011-09-29 | 2013-04-10 | 联想(北京)有限公司 | Battery charge-discharge control method and electronic equipment |
| CN204376508U (en) * | 2014-12-31 | 2015-06-03 | 厦门台和电子有限公司 | A kind of quick-charging circuit |
| CN206542206U (en) * | 2017-01-23 | 2017-10-03 | 珠海市魅族科技有限公司 | A kind of charge-discharge protection circuit, battery and electronic equipment |
| CN207926225U (en) * | 2018-02-27 | 2018-09-28 | 重庆创通联达智能技术有限公司 | A kind of mobile device high current power supply system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207381998U (en) * | 2017-08-23 | 2018-05-18 | 东莞市海科泰通讯设备有限公司 | Two-output impulse generator USB-PD mobile powers |
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| CN102938569A (en) * | 2011-08-15 | 2013-02-20 | 联想(北京)有限公司 | Method and device for supplying power to electronic device and electronic device |
| CN103035966A (en) * | 2011-09-29 | 2013-04-10 | 联想(北京)有限公司 | Battery charge-discharge control method and electronic equipment |
| CN204376508U (en) * | 2014-12-31 | 2015-06-03 | 厦门台和电子有限公司 | A kind of quick-charging circuit |
| CN206542206U (en) * | 2017-01-23 | 2017-10-03 | 珠海市魅族科技有限公司 | A kind of charge-discharge protection circuit, battery and electronic equipment |
| CN207926225U (en) * | 2018-02-27 | 2018-09-28 | 重庆创通联达智能技术有限公司 | A kind of mobile device high current power supply system |
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