CN207010339U - Mobile terminal and its electric power system - Google Patents
Mobile terminal and its electric power system Download PDFInfo
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- CN207010339U CN207010339U CN201720228053.8U CN201720228053U CN207010339U CN 207010339 U CN207010339 U CN 207010339U CN 201720228053 U CN201720228053 U CN 201720228053U CN 207010339 U CN207010339 U CN 207010339U
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Abstract
The utility model provides a kind of mobile terminal and its electric power system.Electric power system includes：First rechargeable battery, the second rechargeable battery, the first battery management module, the second battery management module, first switch module, second switch module and main control module；The charging end of first battery management module is electrically connected with the power input of electric power system, and discharge end is electrically connected by first switch module with the power output end of electric power system, and battery terminal connections electrically connect with the first rechargeable battery；The charging end of second battery management module is electrically connected with power input, and discharge end is electrically connected by second switch module with power output end, and battery terminal connections electrically connect with the second rechargeable battery；Main control module and the first battery management module and the second battery management module communicate to connect；Main control module also electrically connects with first switch module and second switch module respectively.The utility model ensure that mobile terminal can normal use during one piece of dead battery capability or replacing battery.
Description
Technical field
Electronic technology field is the utility model is related to, more particularly to a kind of mobile terminal and its electric power system.
Background technology
More and more with the function of mobile terminal, its power consumption is also increasing so that user needs in use
Often to charge or change battery.And change in cell process, mobile terminal can not normal work, user can be delayed to movement
The use of terminal.
Utility model content
The technical problems to be solved in the utility model is to overcome the mobile terminal of prior art changing the mistake of battery
In journey can not normal work the defects of, there is provided a kind of mobile terminal and its electric power system.
The utility model is that solve above-mentioned technical problem by following technical proposals：
A kind of electric power system of mobile terminal, its feature are that the electric power system includes：First rechargeable battery, second
Rechargeable battery, the first battery management module, the second battery management module, first switch module, second switch module and master control mould
Block；
The charging end of first battery management module electrically connects with the power input of the electric power system, and discharge end leads to
Cross the first switch module to electrically connect with the power output end of the electric power system, battery terminal connections and the described first charging electricity
Pond electrically connects；
The charging end of second battery management module electrically connects with the power input, and discharge end passes through described second
Switch module electrically connects with the power output end, and battery terminal connections electrically connect with second rechargeable battery；
The main control module communicates to connect with first battery management module and second battery management module respectively；
The main control module also electrically connects with the first switch module and the second switch module respectively, and the main control module is used for
Generate the first control instruction and send to the first switch module, the main control module is additionally operable to generate the second control instruction simultaneously
Send to the second switch module；
The first switch module is used to connect when receiving first control instruction, so that first cell tube
The discharge end of reason module electrically connects with the power output end；
The second switch module is used to connect when receiving second control instruction, so that second cell tube
The discharge end of reason module electrically connects with the power output end.
It is preferred that first rechargeable battery is internal battery, second rechargeable battery is external battery；
The electric power system also includes voltage detection module, for detecting the PIN pin voltages of second rechargeable battery；
The main control module is used to generate first control instruction according to the PIN voltage or second control refers to
Order.
It is preferred that the electric power system also includes electric capacity, one end of the electric capacity electrically connects with the power output end, separately
One end is grounded；
The capacitance of the electric capacity is 100pF-470pF.
It is preferred that the first switch module includes the first NMOS tube and the first control unit, first NMOS tube
Grid electrically connects with the controlling switch of first control unit, drain electrode electrically connected with the power output end, source electrode with it is described
The discharge end electrical connection of first battery management module；
The second switch module includes the second NMOS tube and the second control unit, the grid of the 2nd NMOS pipes with
The controlling switch electrical connection of second control unit, drain electrode electrically connect with the power output end, source electrode and the described second electricity
The discharge end electrical connection of pond management module；
The main control module electrically connects with first control unit and second control unit；
First battery management module is used for the first battery capacity for obtaining the first rechargeable battery and sent to the master
Module is controlled, second battery management module is used for the second battery capacity for obtaining the second rechargeable battery and sent to the master control
Module；
The main control module is used to be referred to according to first battery capacity and the control of second battery capacity generation first
Make and send to first control unit, and/or the main control module is used for according to first battery capacity and described the
Two battery capacities generate the second control instruction and sent to second control unit.
It is preferred that the first switch module also includes the first diode, the anode of first diode and described the
The source electrode electrical connection of one NMOS tube, negative electrode electrically connect with the drain electrode of first NMOS tube.
It is preferred that the second switch module also includes the second diode, the anode of second diode and described the
The source electrode electrical connection of two NMOS tubes, negative electrode electrically connect with the drain electrode of second NMOS tube.
It is preferred that the main control module by I2C buses respectively with first battery management module and it is described second electricity
Pond management module communication connection.
The utility model also provides a kind of mobile terminal, and its feature is, the mobile terminal includes as described above supply
Electric system.
Positive effect of the present utility model is：In the utility model, powered by two pieces of batteries for mobile terminal,
Ensure that mobile terminal can normal use during one piece of dead battery capability or replacing battery.
Brief description of the drawings
Fig. 1 is the circuit connection diagram of the electric power system of the mobile terminal of the utility model embodiment 1.
Fig. 2 is the part of module schematic diagram of the electric power system of the mobile terminal of the utility model embodiment 1.
Fig. 3 is the part of module schematic diagram of the electric power system of the mobile terminal of the utility model embodiment 2.
Fig. 4 is the circuit connection diagram of the electric power system of the mobile terminal of the utility model embodiment 2.
Fig. 5 is the circuit connection diagram of the electric power system of the mobile terminal of the utility model embodiment 3.
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
Embodiment 1
As shown in Figure 1-2, the electric power system of the mobile terminal of the present embodiment includes：First rechargeable battery 1, second charging electricity
Pond 2, the first battery management module 3, the second battery management module 4, first switch module 5, second switch module 6 and master control mould
Block 7.The charging end of first battery management module 3 electrically connects with the power input 8 of electric power system, and discharge end passes through first switch
Module 5 electrically connects with the power output end 9 of electric power system, and battery terminal connections electrically connect with the first rechargeable battery 1.Second cell tube
The charging end of reason module 4 is electrically connected with power input 8, and discharge end is electrically connected by second switch module 6 and power output end 9
Connect, battery terminal connections electrically connect with the second rechargeable battery 2.Main control module 7 respectively with the first battery management module 3 and the second battery
Management module 4 communicates to connect, it is preferable that main control module by I2C buses respectively with the first battery management module and the second battery
Management module communicates to connect, and battery management module can be the Charge Management of the single lithium battery with dynamic route management function
Chip, the Charge Management to rechargeable battery is realized, including to functions such as charging current, charging voltage, status monitoring and controls
Flexibly control.Main control module 7 also electrically connects with first switch module 5 and second switch module 6 respectively.
Main control module 7 is used to generate the first control instruction and send to first switch module 5, main control module 7 to be additionally operable to give birth to
Into the second control instruction and send to second switch module 6.First switch module 5 is used to connect when receiving the first control instruction
Logical, so that the discharge end of the first battery management module 3 electrically connects with power output end 9, now the first rechargeable battery 1 is mobile whole
End power supply.Second switch module 6 is used to connect when receiving the second control instruction, so that the second battery management module 4 is put
Electric end is electrically connected with power output end, and now the second rechargeable battery 2 is powered for mobile terminal.
In the present embodiment, powered by two pieces of batteries for mobile terminal, it is ensured that in one piece of dead battery capability or replacing
During battery, mobile terminal can normal use.
Embodiment 2
On the basis of embodiment 1, as shown in figure 3, the electric power system of the present embodiment also includes voltage detection module 10, use
In the PIN voltage for detecting the second rechargeable battery 2.
In the present embodiment, the first rechargeable battery is internal battery, and the second rechargeable battery is external battery, using external battery
Priority of powering is higher than the strategy of internal battery, namely preferentially uses external battery to be powered for mobile terminal, when external battery
Electricity is finished or external battery is disassembled (now PIN voltage is low level voltage), then uses internal battery to be mobile whole
End power supply.
The PIN voltage of external battery is obtained by voltage detection module, and main control module generates first according to PIN voltage
Control instruction or the second control instruction, specifically：When voltage detection module 10 detects that PIN voltage is high-voltage level, then
It can be mobile terminal power supply (be not disassembled or electricity is sufficient) to illustrate external battery, and the now generation of main control module 7 second controls
Instruct and send to second switch module 6, second switch module 6 and connected when receiving the second control instruction, so that the second electricity
The discharge end of pond management module 4 is electrically connected with power output end 9, and now external battery is powered for mobile terminal；Work as voltage detecting
Module 10 detects that PIN voltage is low voltage level, then illustrates that external battery electricity exhausts or mobile terminal is changing battery
During, namely external battery can not be that mobile terminal is powered, now main control module 7 generates the first control instruction and sent extremely
First switch module 5, first switch module 5 are connected when receiving the first control instruction, so that the first battery management module 3
Discharge end is electrically connected with power output end 9, and now internal battery is powered for mobile terminal.
In order to realize the steady switching of external battery and internal battery, i.e., electric ripple is less than certain during battery switching
Value, as shown in figure 4, the electric power system of the present embodiment is additionally provided with bulky capacitor C, the capacitance of electric capacity is 100pF-470pF, the one of electric capacity
End electrically connects with power output end, other end ground connection.
Embodiment 3
On the basis of embodiment 1, as shown in figure 5, the first switch module 5 of the present embodiment includes the first NMOS tube and the
One control unit 51, the grid of the first NMOS tube electrically connect with the controlling switch of the first control unit 51, and drain electrode exports with power supply
The electrical connection of end 9, source electrode electrically connect with the discharge end of the first battery management module 3.Second switch module include the second NMOS tube and
Second control unit 61, the grid of the second NMOS tube electrically connect with the controlling switch of the second control unit 61, and drain electrode is defeated with power supply
Go out the electrical connection of end 9, source electrode electrically connects with the discharge end of the second battery management module 4.Main control module 7 with the first control unit 51
Electrically connected with the second control unit 61.
In the present embodiment, the first rechargeable battery and the second rechargeable battery are using independent assortment All factors being equal, preference will be give to level mode.For example,
Automatically switched according to the voltage of two rechargeable batteries and system voltage, powered for mobile terminal.Specifically：
First battery management module 3 obtains the first battery capacity of the first rechargeable battery 1 and sent to main control module 7, the
Two battery management modules 4 obtain the second battery capacity of the second rechargeable battery 2 and sent to main control module 7.Main control module 7 can root
The first control instruction is generated according to the first battery capacity and the second battery capacity and is sent to the first control unit 51, main control module 7
Also the second control instruction can be generated according to the first battery capacity and the second battery capacity and sent to the second control unit 61.Specifically
, if the first battery capacity and the second battery capacity are all higher than preset value, (big I is voluntarily set according to the actual requirements, and two are pre-
If value may be configured as identical, difference may be alternatively provided as), then main control module 7 generates the first control instruction simultaneously and the second control refers to
Order, two control units control two NMOS tube conductings respectively, and now two rechargeable batteries are powered for mobile terminal simultaneously；If the
One battery capacity is more than preset value, and the second battery capacity is less than preset value, then first control instruction of the generation of main control module 7, and first
Control unit 51 controls the conducting of the first NMOS tube, and now the first rechargeable battery 3 is powered for mobile terminal；If the second battery capacity
More than preset value, the first battery capacity is less than preset value, then main control module 7 generates the second control instruction, the second control unit 61
The second NMOS tube is controlled to turn on, now the second rechargeable battery 2 is powered for mobile terminal.
In the present embodiment, control unit can apply to the ORING circuit controllers of electric power system, coordinate with NMOS tube
Use.Control unit is turned on and off corresponding NMOS tube by the voltage and system voltage of rechargeable battery.On the one hand, control
Unit processed opens NMOS tube in time can ensure promptness and reliability of the power supply to system power supply, on the other hand, control unit
Rapid shut-off NMOS tube can prevent and reduce the anti-sink current of the input power supply of system voltage.
In the present embodiment, first switch module also includes the first diode, the anode of the first diode and the first NMOS tube
Source electrode electrical connection, negative electrode electrically connects with the drain electrode of the first NMOS tube.Second switch module also includes the second diode, and the two or two
The anode of pole pipe electrically connects with the source electrode of the second NMOS tube, and negative electrode electrically connects with the drain electrode of the second NMOS tube.Diode plays instead
To the function of current protection.
The utility model also includes mobile terminal, and the mobile terminal includes the electric power system in embodiment 1-3.So as to this
The mobile terminal of embodiment also can normal use when changing battery.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within the scope of protection of the utility model.
Claims (8)
1. a kind of electric power system of mobile terminal, it is characterised in that the electric power system includes：First rechargeable battery, second are filled
Battery, the first battery management module, the second battery management module, first switch module, second switch module and main control module；
The charging end of first battery management module electrically connects with the power input of the electric power system, and discharge end passes through institute
The power output end that first switch module is stated with the electric power system electrically connects, battery terminal connections and first rechargeable battery electricity
Connection；
The charging end of second battery management module electrically connects with the power input, and discharge end passes through the second switch
Module electrically connects with the power output end, and battery terminal connections electrically connect with second rechargeable battery；
The main control module communicates to connect with first battery management module and second battery management module respectively；It is described
Main control module also electrically connects with the first switch module and the second switch module respectively, and the main control module is used to generate
First control instruction is simultaneously sent to the first switch module, and the main control module is additionally operable to generate the second control instruction and sent
To the second switch module；
The first switch module is used to connect when receiving first control instruction, so that the first battery management mould
The discharge end of block electrically connects with the power output end；
The second switch module is used to connect when receiving second control instruction, so that the second battery management mould
The discharge end of block electrically connects with the power output end.
2. the electric power system of mobile terminal as claimed in claim 1, it is characterised in that first rechargeable battery is in-built electrical
Pond, second rechargeable battery are external battery；
The electric power system also includes voltage detection module, for detecting the PIN voltage of second rechargeable battery；
The main control module is used to generate first control instruction or second control instruction according to the PIN voltage.
3. the electric power system of mobile terminal as claimed in claim 2, it is characterised in that the electric power system also includes electric capacity,
One end of the electric capacity electrically connects with the power output end, other end ground connection；
The capacitance of the electric capacity is 100pF-470pF.
4. the electric power system of mobile terminal as claimed in claim 1, it is characterised in that the first switch module includes first
NMOS tube and the first control unit, the grid of first NMOS tube electrically connect with the controlling switch of first control unit,
Drain electrode electrically connects with the power output end, and source electrode electrically connects with the discharge end of first battery management module；
The second switch module includes the second NMOS tube and the second control unit, the grid of second NMOS tube and described the
The controlling switch electrical connection of two control units, drain electrode electrically connect with the power output end, source electrode and second battery management
The discharge end electrical connection of module；
The main control module electrically connects with first control unit and second control unit；
First battery management module is used for the first battery capacity for obtaining the first rechargeable battery and sent to the master control mould
Block, second battery management module are used for the second battery capacity for obtaining the second rechargeable battery and sent to the master control mould
Block；
The main control module is used to generate the first control instruction simultaneously according to first battery capacity and second battery capacity
Send to first control unit, and/or the main control module and be used for according to first battery capacity and second electricity
Tankage generates the second control instruction and sent to second control unit.
5. the electric power system of mobile terminal as claimed in claim 4, it is characterised in that the first switch module also includes the
One diode, the anode of first diode electrically connect with the source electrode of first NMOS tube, negative electrode and the first NMOS
The drain electrode electrical connection of pipe.
6. the electric power system of mobile terminal as claimed in claim 4, it is characterised in that the second switch module also includes the
Two diodes, the anode of second diode electrically connect with the source electrode of second NMOS tube, negative electrode and the 2nd NMOS
The drain electrode electrical connection of pipe.
7. the electric power system of mobile terminal as claimed in claim 1, it is characterised in that the main control module passes through I2C buses
Communicated to connect respectively with first battery management module and second battery management module.
8. a kind of mobile terminal, it is characterised in that the mobile terminal includes the confession as described in any one in claim 1-7
Electric system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228053.8U CN207010339U (en) | 2017-03-09 | 2017-03-09 | Mobile terminal and its electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228053.8U CN207010339U (en) | 2017-03-09 | 2017-03-09 | Mobile terminal and its electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010339U true CN207010339U (en) | 2018-02-13 |
Family
ID=61427621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720228053.8U Active CN207010339U (en) | 2017-03-09 | 2017-03-09 | Mobile terminal and its electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207010339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504738A (en) * | 2018-05-18 | 2019-11-26 | 中兴通讯股份有限公司 | Double cell switching method, circuit, mobile terminal and storage medium |
| CN113377185A (en) * | 2021-07-05 | 2021-09-10 | 歌尔科技有限公司 | Embedded equipment, power supply switching method and device thereof, and storage medium |
-
2017
- 2017-03-09 CN CN201720228053.8U patent/CN207010339U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504738A (en) * | 2018-05-18 | 2019-11-26 | 中兴通讯股份有限公司 | Double cell switching method, circuit, mobile terminal and storage medium |
| CN113377185A (en) * | 2021-07-05 | 2021-09-10 | 歌尔科技有限公司 | Embedded equipment, power supply switching method and device thereof, and storage medium |
| CN113377185B (en) * | 2021-07-05 | 2023-10-10 | 歌尔科技有限公司 | Embedded equipment, power supply switching method and device thereof and storage medium |
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