CN104901358A - Power supply circuit, power supply method and terminal - Google Patents
Power supply circuit, power supply method and terminal Download PDFInfo
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- CN104901358A CN104901358A CN201510240859.4A CN201510240859A CN104901358A CN 104901358 A CN104901358 A CN 104901358A CN 201510240859 A CN201510240859 A CN 201510240859A CN 104901358 A CN104901358 A CN 104901358A
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- 238000006243 chemical reaction Methods 0.000 claims description 26
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Abstract
The present invention discloses a power supply circuit, a power supply method and a terminal to supply power to a first application unit and a second application unit. The power supply circuit comprises a power management unit and also comprises a first battery, a second battery and a charging unit which are connected to the power management unit. The power management unit is used for controlling the charging unit to charge the first battery and the second battery. The rated voltage of the first battery is higher than that of the second battery. The power management unit is also used for controlling the first battery to supply power to the first application unit and control the second battery to supply power to the second application unit. The working voltage of the first application unit is higher than that of the second application unit. According to the embodiment of the present invention, two batteries with different rated voltages are used to supply power to the application units, the battery with the higher rated voltage supplies power to the first application unit with the higher working voltage, the battery with the lower rated voltage supplies power to the second application unit with the lower working voltage, the power supply efficiency is improved, and the power consumption is reduced.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a power supply circuit, a power supply method and a terminal.
Background
The conventional terminal (such as a mobile phone, a tablet computer, etc.) generally adopts a battery to supply power to various application units in the terminal, and because some application units require low working voltage and some application units require high working voltage, when the terminal adopts a single battery to supply power, multiple times of voltage regulation are required, and the voltage regulation amplitude is large.
Disclosure of Invention
The embodiment of the invention provides a power supply circuit, a power supply method and a terminal, aiming at improving the power supply efficiency of the terminal and reducing the power consumption.
The embodiment of the invention provides a power supply circuit, which is used for supplying power to a first application unit and a second application unit, and comprises: the charging device comprises a power management unit, and a first battery, a second battery and a charging unit which are connected with the power management unit; wherein,
the power supply management unit is used for controlling the charging unit to charge the first battery and the second battery; the rated voltage of the first battery is higher than the rated voltage of the second battery;
the power management unit is further used for controlling the first battery to supply power to the first application unit and controlling the second battery to supply power to the second application unit; the operating voltage of the first application unit is higher than the operating voltage of the second application unit.
Correspondingly, the invention also provides a terminal which comprises a first application unit, a second application unit and the power supply circuit.
Correspondingly, the invention also provides a power supply method of the power supply circuit, wherein the power supply circuit of the terminal comprises the following steps: the charging device comprises a power management unit, and a first battery, a second battery and a charging unit which are connected with the power management unit; the power supply method of the power supply circuit comprises the following steps:
the power supply management unit detects the rated voltage of the first battery and the rated voltage of the second battery;
the power supply management unit detects the working voltage of the first application unit and the working voltage of the second application unit;
when the power management unit detects that the rated voltage of the first battery is larger than the rated voltage of the second battery and the working voltage of the first application unit is higher than the working voltage of the second application unit, the power management unit controls the first battery to supply power to the first application unit and controls the second battery to supply power to the second application unit.
The power supply circuit of the terminal provided by the invention supplies power by using two batteries, wherein the first battery with higher rated voltage supplies power to the first application unit with higher working voltage; the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency is improved, the power consumption is reduced, and the problem of terminal heating is also solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a power supply circuit according to the present invention;
FIG. 2 is a schematic diagram of another power supply circuit provided by the present invention;
FIG. 3 is a schematic diagram of another power supply circuit provided by the present invention;
FIG. 4 is a schematic diagram of another power supply circuit provided by the present invention;
FIG. 5 is a schematic diagram of another power supply circuit provided by the present invention;
fig. 6 is a schematic structural diagram of a terminal provided in the present invention;
fig. 7 is a flowchart of a power supply method of a power supply circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a power supply circuit, which supplies power by using two batteries, wherein a first battery with higher rated voltage supplies power to a first application unit with higher working voltage; the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency can be improved, and the power consumption can be reduced. The following are detailed below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a power supply circuit 100 according to the present invention. As shown in fig. 1, the power supply circuit 100 is used for supplying power to a first application unit and a second application unit, and the power supply circuit 100 includes: a first battery 101, a second battery 102, a power management unit 103, and a charging unit 104; the power management unit 103 is configured to control the charging unit 104 to charge the first battery 101 and the second battery 102; the rated voltage of the first battery 101 is higher than that of the second battery 102; the power management unit 103 is further configured to control the first battery 101 to supply power to the first application unit, and control the second battery 102 to supply power to the second application unit; the operating voltage of the first application unit is higher than the operating voltage of the second application unit. It should be noted that, as an alternative embodiment, both the first application unit and the second application unit are not limited to include only one power utilization module, and may include a plurality of power utilization modules. Specifically, as an alternative embodiment, as shown in fig. 2, the power management unit 103 may include a charge and discharge control unit 1031 and a voltage conversion unit 1032; wherein, the charge and discharge control unit 1031 is used for controlling the charging unit 104 to charge the first battery 101 and controlling the charging unit 104 to charge the second battery 102; and a charge and discharge control unit 1031, further configured to control the first battery 101 to supply power to the first application unit through the voltage conversion unit 1032, and to control the second battery 102 to supply power to the second application unit through the voltage conversion unit 1032. A voltage conversion unit 1032 for converting the voltage of the first battery 101 into a working voltage of the first application unit to supply power to the first application unit; the voltage conversion unit 1032 is further configured to convert the voltage of the second battery 102 into an operating voltage of the second application unit, and supply the operating voltage to the second application unit.
As an alternative embodiment, as shown in fig. 3, the charge and discharge control unit includes: a first switch control unit 2031 and a second switch control unit 203; the voltage conversion unit includes: a first voltage conversion unit 2032 and a second voltage conversion unit 2034. The first switch control unit 2031 is connected to the charging unit 204, the first battery 201, and the first voltage conversion unit 2032, respectively, and is configured to control the charging unit 204 to charge the first battery 201, and to control the first battery 201 to supply power to the first application unit through the first voltage conversion unit 2032;
and a second switch control unit 2033 connected to the charging unit 204, the second battery 202, and the second voltage conversion unit 2034, respectively, for controlling the charging unit 204 to charge the second battery 202 and for controlling the second battery 202 to supply power to the second application unit through the second voltage conversion unit 2034.
In the power supply circuit in this embodiment, two batteries are provided for supplying power, wherein a first battery with a higher rated voltage supplies power to a first application unit with a higher operating voltage; the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency is improved, the power consumption is reduced, and the problem of terminal heating is also solved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another power supply circuit 200 according to an embodiment of the disclosure. In this embodiment, the power supply circuit 200 includes: a first battery 201, a second battery 202, a voltage management unit 203, a charging unit 204, and a display unit 205. The display unit 205 is connected to the first battery 201 and the second battery 202, respectively, and is configured to display a remaining power of the first battery 201, a remaining power of the second battery 202, or a total remaining power of the first battery 201 and the second battery 202. The power management unit 203 includes a first switch control unit 2031, a first voltage conversion unit 2032, a second switch control unit 2033, and a second voltage conversion unit 2034.
In the power supply circuit in this embodiment, two batteries are provided for supplying power, wherein a first battery with a higher rated voltage supplies power to a first application unit with a higher operating voltage; the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency is improved, the power consumption is reduced, and further, the residual capacity of the first battery 201 or the second battery 202 can be known in time by arranging the display unit.
As an alternative embodiment, the first switch control unit 2031 may control the charging unit 204 and whether to charge the first battery 201 according to the remaining electric quantity value of the first battery 201 detected by the display unit 205. For example, if it is preset that the remaining capacity of the first battery is lower than 90% of the total capacity, the first battery is continuously charged, and when the display unit 205 detects that the remaining capacity of the first battery 201 is lower than 90% of the total capacity, the first switch control unit 2031 sends a control signal to control the charging unit 204 to supply power to the first battery 201, and after the first battery is fully charged, the connection between the charging unit 204 and the first battery 201 is disconnected. Likewise, the second off control unit 2033 may control the charging unit 204 and whether to charge the second battery 202 according to the remaining electric quantity value of the second battery 202 detected by the display unit 205. For example, if it is preset that the remaining capacity of the second battery 202 is lower than 90% of the total capacity, the second battery 202 is continuously charged, and when the display unit 205 detects that the remaining capacity of the second battery 202 is lower than 90% of the total capacity, the second off control unit 2033 sends a control signal to control the charging unit 204 to supply power to the second battery 202, and after the second battery is fully charged, the connection between the charging unit 204 and the second battery 202 is disconnected. When the display unit 205 displays the total remaining capacity of the first battery 201 and the second battery 202, the first switch control unit 2031 and the second switch control unit 2033 may sense the display of the display unit 205 and control the charging unit 204 to charge the first battery 201 and the second battery 202.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another power supply circuit 300 according to an embodiment of the disclosure. Compared with the power supply circuit 200 in fig. 4, a voltage boosting circuit 3036 connecting the first battery 301 and the second switch control unit 3033, and a voltage dropping circuit 3035 connecting the second battery 302 and the first switch control unit 3031 are added. For charging the first battery 301 and the second battery 302 in a special case. For example, when the circuit fails, the charging unit 304 cannot normally charge the first battery 301 or the second battery 302, if the electric quantity of one of the batteries is lower than a set value and the electric quantity of the other battery is sufficient, the boosting circuit 3036 or the voltage reducing circuit 3035 may be used to supplement the electric energy between the first battery and the second battery.
The stability of the system can be further improved by arranging the voltage boosting circuit and the voltage reducing circuit.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a terminal 400 according to an embodiment of the present invention. Including a power supply circuit 401, a first application unit 402 and a second application unit 403. The power supply circuit 401 includes a first battery 4011, a second battery 4012, a power management unit 4013, and a charging unit 4014, where the power management unit 4013 is connected to the first battery 4011, the second battery 4012, the charging unit 4014, the first application unit 402, and the second application unit 403, respectively. Wherein the rated voltage of first battery 4011 is higher than the rated voltage of second battery 4012; the power supply management unit 4013 controls the charging unit 4014 to charge the first battery 4011 and the second battery 4012, respectively; the power management unit 4013 is further configured to control the first battery 4011 to supply power to the first application unit 402, and control the second battery 4012 to supply power to the second application unit 403; the operating voltage of the first application unit 402 is higher than the operating voltage of the second application unit 403. It should be noted that the first application unit 402 and the second application unit 403 may correspond to a plurality of application modules in the terminal 400. Firstly, a voltage value is preset, for example, 2.8V, the operating voltages of the application modules in the first application unit are all greater than or equal to 2.8V, and the operating voltages of the application modules in the second application unit are all less than 2.8V. The first battery 4011 outputs multiple voltage values that are the same as the operating voltages of the application modules in the first application unit 402 through the power management unit 4013, for example, if the operating voltages of the application modules in the first application unit 402 respectively include: 2.8V, 3.0V, 3.5V, the voltage values output by first battery 4011 through power management unit 4013 are: 2.8V, 3.0V and 3.5V. Accordingly, the operating voltages of the plurality of application modules in the second application unit 403 are all less than 2.8V, and the second battery 4012 outputs a plurality of voltage values that are the same as the operating voltages of the application modules in the second application unit 402 through the power management unit 4013, for example, if the operating voltages of the application modules in the second application unit 403 respectively include: 1.8V, 0.9V, 0.6V, the voltage values output by second battery 4012 through power management unit 4013 are: 1.8V, 0.9V and 0.6V. As an alternative embodiment, the power supply circuit of the terminal may also adopt the structures in fig. 2 to fig. 5, which are not described herein again.
In the terminal in this embodiment, two batteries are provided to supply power to the first application unit and the second application unit, where the first battery with a higher rated voltage supplies power to the first application unit with a higher operating voltage; the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency is improved, the power consumption is reduced, and the problem of terminal heating is also solved.
Referring to fig. 7, fig. 7 is a flowchart of a power supply method of a power supply circuit according to the present invention. The power supply circuit includes: the power management unit and the first battery, the second battery and the charging unit are connected with the power management unit. As shown in fig. 7, a power supply method of a power supply circuit according to an embodiment of the present invention may include:
s101, detecting the rated voltage of a first battery and the rated voltage of a second battery by a power management unit;
s102, the power supply management unit detects the working voltage of the first application unit and the working voltage of the second application unit;
s103, when the power management unit detects that the rated voltage of the first battery is larger than the rated voltage of the second battery and the working voltage of the first application unit is higher than the working voltage of the second application unit, the power management unit controls the first battery to supply power to the first application unit and controls the second battery to supply power to the second application unit.
Optionally, in some possible embodiments of the present invention, the method may further include:
the display unit detects the residual capacity of the first battery, the residual capacity of the second battery or the total residual capacity of the first battery and the second battery;
the display unit displays the residual capacity of the first battery, the residual capacity of the second battery or the total residual capacity of the first battery and the second battery according to the detection result.
Optionally, in some possible embodiments of the present invention, the method may further include:
the second battery charges the first battery through the boosting circuit;
the first battery charges the second battery through the voltage reduction circuit.
In the power supply method of the power supply circuit in this embodiment, the first battery and the second battery respectively supply power to the first application unit and the second application unit; the first battery with higher rated voltage supplies power to the first application unit with higher working voltage, and the second battery with lower rated voltage supplies power to the second application unit with lower working voltage, so that the power supply efficiency is improved, the power consumption is reduced, and the problem of terminal heating is also solved.
The order of the steps of the method of the embodiments of the present invention may be adjusted, combined, or deleted according to actual needs. The units of the terminal of the embodiment of the invention can be integrated, further divided or deleted according to actual needs.
The elements of the embodiments of the present invention may be implemented in a general purpose integrated circuit (e.g., a central processing unit CPU) or an Application Specific Integrated Circuit (ASIC).
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The file transmission method and the related terminal provided by the embodiment of the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A power supply circuit for supplying power to a first application unit and a second application unit, the power supply circuit comprising: the charging device comprises a power management unit, and a first battery, a second battery and a charging unit which are connected with the power management unit; wherein,
the power supply management unit is used for controlling the charging unit to charge the first battery and the second battery; the rated voltage of the first battery is higher than the rated voltage of the second battery;
the power management unit is further used for controlling the first battery to supply power to the first application unit and controlling the second battery to supply power to the second application unit; the operating voltage of the first application unit is higher than the operating voltage of the second application unit.
2. The power supply circuit according to claim 1, wherein the power management unit comprises: a charge and discharge control unit and a voltage conversion unit;
the charging and discharging control unit is used for controlling the charging unit to charge the first battery and controlling the charging unit to charge the second battery;
the charge and discharge control unit is further used for controlling the first battery to supply power to the first application unit through the voltage conversion unit and controlling the second battery to supply power to the second application unit through the voltage conversion unit;
the voltage conversion unit is used for converting the voltage of the first battery into the working voltage of the first application unit and supplying power to the first application unit;
the voltage conversion unit is further configured to convert the voltage of the second battery into an operating voltage of the second application unit to supply power to the second application unit.
3. The power supply circuit of claim 2,
the charge and discharge control unit includes: a first switch control unit and a second switch control unit;
the voltage conversion unit includes: a first voltage conversion unit and a second voltage conversion unit; wherein,
the first switch control unit is respectively connected with the charging unit, the first battery and the first voltage conversion unit, and is used for controlling the charging unit to charge the first battery and controlling the first battery to supply power to the first application unit through the first voltage conversion unit;
the second switch control unit is respectively connected with the charging unit, the second battery and the second voltage conversion unit, and is used for controlling the charging unit to charge the second battery and controlling the second battery to supply power to the second application unit through the second voltage conversion unit.
4. The power supply circuit of claim 3, wherein the power management unit further comprises: the display unit is respectively connected with the first battery and the second battery;
the display unit is used for displaying the residual capacity of the first battery, the residual capacity of the second battery or the total residual capacity of the first battery and the second battery.
5. The power supply circuit according to claim 3 or 4, wherein the power management unit further comprises: a voltage boost circuit and a voltage buck circuit, wherein,
the boosting circuit is connected between the first battery and the second switch control unit and is used for charging the first battery by the second battery;
the voltage reduction circuit is connected between the second battery and the first switch control unit and used for charging the second battery by the first battery.
6. A terminal comprising a first application unit, a second application unit, and a supply circuit as claimed in any one of claims 1 to 5.
7. The terminal of claim 6, wherein the terminal is a mobile phone.
8. A method of powering a power supply circuit, the power supply circuit comprising: the charging device comprises a power management unit, and a first battery, a second battery and a charging unit which are connected with the power management unit; the power supply method of the power supply circuit comprises the following steps:
the power management unit detects a rated voltage of the first battery and a rated voltage of the second battery;
the power supply management unit detects the working voltage of the first application unit and the working voltage of the second application unit;
when the power management unit detects that the rated voltage of the first battery is larger than the rated voltage of the second battery and the working voltage of the first application unit is higher than the working voltage of the second application unit, the power management unit controls the first battery to supply power to the first application unit and controls the second battery to supply power to the second application unit.
9. The power supply method according to claim 8, characterized by further comprising:
the display unit detects the residual capacity of the first battery, the residual capacity of the second battery or the total residual capacity of the first battery and the second battery;
and the display unit displays the residual capacity of the first battery, the residual capacity of the second battery or the total residual capacity of the first battery and the second battery according to the detection result.
10. The power supply method according to claim 8 or 9, characterized in that the method further comprises:
the second battery charges the first battery through a boosting circuit;
the first battery charges the second battery through a voltage reduction circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240859.4A CN104901358A (en) | 2015-05-12 | 2015-05-12 | Power supply circuit, power supply method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240859.4A CN104901358A (en) | 2015-05-12 | 2015-05-12 | Power supply circuit, power supply method and terminal |
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| Publication Number | Publication Date |
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| CN104901358A true CN104901358A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510240859.4A Pending CN104901358A (en) | 2015-05-12 | 2015-05-12 | Power supply circuit, power supply method and terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110611347A (en) * | 2019-09-16 | 2019-12-24 | Oppo广东移动通信有限公司 | Charging control method and related product |
| CN110661414A (en) * | 2019-09-30 | 2020-01-07 | 西安闻泰电子科技有限公司 | Power supply management device and electronic equipment |
| CN117543851A (en) * | 2024-01-09 | 2024-02-09 | 深圳市每开创新科技有限公司 | Multi-path stored passive device and control method thereof |
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| CN103368233A (en) * | 2013-07-22 | 2013-10-23 | 上海交通大学 | Solar power supply system with a plurality of battery packs |
| US20150077040A1 (en) * | 2013-09-16 | 2015-03-19 | Blue Sea Systems | Power output distribution and control system for multi-output battery charger |
| CN204304492U (en) * | 2014-11-22 | 2015-04-29 | 井皓东 | A kind of charging equipment for mobile phone used for buses |
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| CN103166244A (en) * | 2011-12-19 | 2013-06-19 | 联想(北京)有限公司 | Distributed power supply system and method |
| CN103368233A (en) * | 2013-07-22 | 2013-10-23 | 上海交通大学 | Solar power supply system with a plurality of battery packs |
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Application publication date: 20150909 |