CN104062917B - A kind of terminal power-down circuit and mobile terminal - Google Patents
A kind of terminal power-down circuit and mobile terminal Download PDFInfo
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- CN104062917B CN104062917B CN201410264327.XA CN201410264327A CN104062917B CN 104062917 B CN104062917 B CN 104062917B CN 201410264327 A CN201410264327 A CN 201410264327A CN 104062917 B CN104062917 B CN 104062917B
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- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 239000007795 chemical reaction product Substances 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention is suitable for field of circuit control more particularly to a kind of terminal power-down circuit and mobile terminal, the circuit are connect with power-supply management system, battery and system power supply feeder ear, including timing module, energy supply control module and charge discharging resisting module；The input terminal of the output end connection energy supply control module of timing module；The output end of the input terminal connection battery of energy supply control module, the input terminal of the output end connection system power supply feeder ear of energy supply control module；The output end of the input terminal connection system power supply feeder ear of charge discharging resisting module.When exception occurs in the power-supply management system of terminal, under user instruction, the timing module of terminal power-down circuit sends out cut-offing instruction in preset time to energy supply control module, the channel of energy supply control module and system power supply feeder ear disconnects, the residual charge that system power supply feeder ear is released by charge discharging resisting module on the paths VBAT, the resetting time for solving existing hardware reset IC is uncontrollable, and the problem that cost is very high.
Description
Technical field
The invention belongs to field of circuit control more particularly to a kind of terminal power-down circuits and mobile terminal.
Background technology
Current end product (including) smart mobile phone mostly uses non-removable internal battery and realize the ultra-thin U.S. of mobile phone
Design is seen, but internal battery realizes dismounting without image of Buddha detachable battery is the same easily, when terminal occurs crashing or battery
After exception, the hardware reset circuit of terminal can only be relied on by terminal hard reset.If power-supply management system (the English of terminal：
Power Managerment System, referred to as：PMS) occur abnormal, can cause to reset unsuccessful, industry is usually using special
Hardware reset integrated circuit (English：Integrated Circuit, referred to as：IC), but the reset of hardware reset IC is used
Control time is non-adjustable, and cost is very high.
Invention content
In view of this, a kind of terminal power-down circuit of present invention offer and mobile terminal, to solve using hardware reset IC's
It is non-adjustable to reset control time, and the problem that cost is very high.
The invention is realized in this way a kind of terminal power-down circuit, powers with power-supply management system, battery and system power supply
VBAT connections are held, which includes timing module, energy supply control module and charge discharging resisting module；
The input terminal of the output end connection energy supply control module of timing module；
The output end of the input terminal connection battery of energy supply control module, the output end of energy supply control module connect system power supply
The input terminal of feeder ear VBAT；
The output end of the input terminal connection system power supply feeder ear of charge discharging resisting module.
Further, terminal power-down circuit further includes power-off reminding module, the input terminal connection of the power-off reminding module
The output end of charge discharging resisting module.
Further, charge discharging resisting module is specially the charge discharging resisting circuit of two-level concatenation.
Further, timing module includes first switch SW1, first resistor R1, second resistance R2,3rd resistor R3,
One NMOS tube Q1 and the first capacitance C1；The first resistor R1 and the second resistance R2 series connection, the second resistance R2 with
The output end of the battery 10 connects；The 3rd resistor R3 and the first capacitance C1 series connection, the 3rd resistor R3 and institute
State the output end connection of battery 10；The first switch SW1 and first resistor R1 is in parallel, and is connected to the first NMOS
The grid of pipe Q1；The input terminal of the first capacitance C1 is connect with the drain electrode of the first NMOS tube Q1；First NMOS tube
The source electrode of Q1 is grounded.
Further, energy supply control module includes the second PMOS tube Q2；The drain electrode of the second PMOS tube Q2 and the electricity
Pond 10 connects；The grid of the second PMOS tube Q2 is connect with the input terminal of the first capacitance C1；The second PMOS tube Q2
Source electrode connect with the system power supply feeder ear.
Further, charge discharging resisting module includes the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 and the 3rd NMOS
Pipe Q3 and the 4th NMOS tube Q4；4th resistance R4 connects with the 5th resistance R5, the 4th resistance R4 and system power supply feeder ear 30
Output end connects；The input terminal of 4th resistance R4 is connect with the grid of third NMOS tube Q3；6th resistance R6 is separately connected battery
10 output end is connected with the drain electrode of third NMOS tube Q3；The source electrode of third NMOS tube Q3 is grounded；The grid of 4th NMOS tube Q4
It is connect with the drain electrode of third NMOS tube Q3；The drain electrode of 4th NMOS tube Q4 is connect with the output end of system power supply feeder ear 30；The
The source electrode of four NMOS tube Q4 is grounded.
Further, power-off reminding module includes motor M1, the 7th resistance R7, the 8th resistance R8 and the 5th NMOS tube
Q5；The grid of 5th NMOS tube Q5 is connect with the output end of the 6th resistance R6；The drain electrode of 5th NMOS tube Q5 and the 7th resistance R7
It is connected with the output end of the parallel resistance of the 8th resistance R8 compositions；The source electrode of 5th NMOS tube Q5 is grounded；The input terminal of motor M1
The output end of the output end and motor M1 that connect battery 10 connects the parallel resistance of the 7th resistance R7 and the 8th resistance R8 compositions
Input terminal connection.
Another object of the present invention is to provide a kind of mobile terminals, including battery, power-supply management system and system power supply
Feeder ear, the mobile terminal further include above-mentioned terminal power-down circuit.
In terminal power-down circuit provided by the invention and mobile terminal, due to the discrete device using low cost, small package
The circuit that non-dismountable battery is controlled in terminal is realized, and the time is controllable, when solving the existing reset for resetting IC
Between uncontrollable and of high cost problem, achieved the purpose that the time is controllable and cost declining.
Description of the drawings
Fig. 1 is the function structure chart for the terminal power-down circuit that the embodiment of the present invention is provided；
Fig. 2 is the particular circuit configurations figure for the terminal power-down circuit that the embodiment of the present invention is provided.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and the embodiments,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain this hair
It is bright, it is not intended to limit the present invention.
As shown in Figure 1, being the modular structure of terminal power-down circuit provided in an embodiment of the present invention, details are as follows：
Terminal power-down circuit provided by the present invention and battery 10, power-supply management system 20 and system power supply feeder ear
VBAT30 connections.
Wherein, battery 10 is the non-dismountable battery for being built in terminal, and power-supply management system 20 is the power management of terminal
Module, system power supply feeder ear 30 is for being powered the whole system of terminal；Power management system in actual use
System 20 will appear failure or cannot temporarily use.
Specifically, terminal power-down circuit includes energy supply control module 40, timing module 50, charge discharging resisting module 60.
Wherein, the output end of timing module 50 is connected to the input terminal of energy supply control module 40, passes through above-mentioned connection, the electricity
Source control module 40 by timing module 50 control, user cut-out instruction send out after, timing module 50 preset time to
Energy supply control module 40 sends out cut-offing instruction.
The output end and system power supply feeder ear 30 (i.e. VBAT) of the output end connection battery 10 of energy supply control module 40
Input terminal, energy supply control module 40 are used to control the on/off of battery 10 and system power supply feeder ear 30, energy supply control module
40 cut off being connected to for battery 10 and system power supply feeder ear 30 according to cut-offing instruction.
The input terminal of the output end connection charge discharging resisting module 60 of system power supply feeder ear 30, when energy supply control module 40
According to after being connected to of cut-offing instruction cut-out battery 10 and system power supply feeder ear 30 so that system power supply feeder ear 30 is let out by charge
The residual charge of 60 bleed-off system power supply side 30 of amplification module, realizes the purpose of electric discharge.
Further, which further includes power-off reminding module 70, and the input terminal connection charge of power-off reminding module 70 is let out
The output end of amplification module 60, for reminding user after residual charge is released.
In embodiments of the present invention, when the power-supply management system of terminal occur it is abnormal, can be by under user instruction, terminal
The timing module of power-down circuit sends out cut-offing instruction, energy supply control module and system power supply in preset time to energy supply control module
The channel of feeder ear disconnects, the residual charge that system power supply feeder ear is released by charge discharging resisting module on the paths VBAT, in this way
It can be by being again started up system by hand, the resetting time for solving existing hardware reset IC is uncontrollable, and cost is very high
Problem.
Fig. 2 shows the physical circuits of terminal power-down circuit provided in an embodiment of the present invention only to show for convenience of description
With relevant part of the embodiment of the present invention, details are as follows.
As an embodiment of the present invention, timing module 50 includes first switch SW1, first resistor R1, second resistance R2, the
Three resistance R3, the first NMOS tube Q1 and the first capacitance C1；
First resistor R1 and second resistance R2 series connection, second resistance R2 are connect with the output end of battery 10；
3rd resistor R3 and the first capacitance C1 series connection, 3rd resistor R3 are connect with the output end of battery 10；
First switch SW1 and R1 are in parallel, and are connected to the grid of the first NMOS tube Q1；
The input terminal of first capacitance C1 is connect with the drain electrode of the first NMOS tube Q1；
The source electrode of first NMOS tube Q1 is grounded.
It should be noted that when first switch SW1 is closed, the grid of the first NMOS tube Q1 and the current potential of drain electrode are equal,
The state of first NMOS tube Q1 is become from being connected by the RC electricity of current direction the first capacitance C1 and 3rd resistor R3 resistance composition
Road, after the first capacitance C1 is electrically charged, the input terminal voltage of the first capacitance C1 is equal with the output end voltage of battery 10.Above-mentioned RC's
Charging time depends on the value of the first capacitance C1 and 3rd resistor R3 of setting.
As an embodiment of the present invention, energy supply control module 40 includes the second PMOS tube Q2；
The drain electrode of second PMOS tube Q2 is connect with battery 10；
The grid of second PMOS tube Q2 is connect with the input terminal of the first capacitance C1；
The source electrode of second PMOS tube Q2 is connect with system power supply feeder ear.
It should be noted that after the first capacitance C1 charging completes, the drain electrode of Q2 and grid from conducting state become by,
Timing module 50 is by being arranged the value of the first capacitance C1 and 3rd resistor R3, and under on-off action, energy supply control module 40 can be with
The connection of battery 10 and system power supply feeder ear 30 is cut off in the preset time.
As an embodiment of the present invention, charge discharging resisting module 60 includes the 4th resistance R4, the 5th resistance R5, the 6th resistance R6
And third NMOS tube Q3 and the 4th NMOS tube Q4；
4th resistance R4 connects with the 5th resistance R5, and the 4th resistance R4 is connect with the output end of system power supply feeder ear 30；
The input terminal of 4th resistance R4 is connect with the grid of third NMOS tube Q3；
The output end that 6th resistance R6 is separately connected battery 10 is connected with the drain electrode of third NMOS tube Q3；
The source electrode of third NMOS tube Q3 is grounded；
The grid of 4th NMOS tube Q4 is connect with the drain electrode of third NMOS tube Q3；
The drain electrode of 4th NMOS tube Q4 is connect with the output end of system power supply feeder ear 30；
The source electrode of 4th NMOS tube Q4 is grounded.
It should be noted that system power supply feeder ear 30 is discharged by the series circuit of R4, R5 first, when charge can not
It releases clean, therefore is discharged by the charge discharging resisting circuit of the two-level concatenation of Q3, Q4, R4, R6 composition.
As an embodiment of the present invention, power-off reminding module 70 include motor M1, the 7th resistance R7, the 8th resistance R8 and
5th NMOS tube Q5；
The grid of 5th NMOS tube Q5 is connect with the output end of the 6th resistance R6；
The drain electrode of 5th NMOS tube Q5 is connect with the output end of the parallel resistance of the 7th resistance R7 and the 8th resistance R8 compositions；
The source electrode of 5th NMOS tube Q5 is grounded；
The output end of input terminal connection battery 10 and the output end of motor M1 of motor M1 connects the 7th resistance R7 and the
The input terminal connection of the parallel resistance of eight resistance R8 compositions.
It should be noted that the parallel resistance of R7 and R8 compositions can be substituted with single resistance, motor M1 can be used
LED etc. is substituted, as long as generating vibration, flash of light or other relevant effects after being powered.
The embodiment of the present invention realizes non-dismountable battery in terminal using the discrete device of low cost, small package and is controlled
The circuit of system, and the time is controllable solves uncontrollable and of high cost problem of the existing resetting time for resetting IC.
Another object of the present invention is to provide a kind of mobile terminal, which includes battery 10, power management system
System 20 and system power supply feeder ear 30, further include above-mentioned terminal power-down circuit.
One of ordinary skill in the art will appreciate that realizing that all or part of step in the above embodiment is can to lead to
It crosses program and is completed to control relevant hardware, the program can be in being stored in a computer read/write memory medium, institute
The storage medium stated, such as ROM/RAM, disk, CD.
The foregoing is merely the better embodiments of the present invention, are not intended to limit the invention, all the present invention's
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within spirit and principle.
Claims (7)
1. a kind of terminal power-down circuit is connect with power-supply management system, battery and system power supply feeder ear (VBAT), feature exists
In：
The terminal power-down circuit includes timing module, energy supply control module and charge discharging resisting module；
The output end of the timing module connects the input terminal of the energy supply control module, wherein the timing module includes the
One switch (SW1), first resistor (R1), second resistance (R2), 3rd resistor (R3), the first NMOS tube (Q1) and the first capacitance
(C1)；
The first resistor (R1) and the second resistance (R2) series connection, the output end of second resistance (R2) and the battery
Connection；
The 3rd resistor (R3) and first capacitance (C1) series connection, the output end of 3rd resistor (R3) and the battery
Connection；
The first switch (SW1) and the first resistor (R1) are in parallel, and are connected to the grid of described first (NMOS) pipes (Q1)
Pole；
The drain electrode that the input terminal of first capacitance (C1) manages (Q1) with described first (NMOS) is connect；
The source electrode of the first NMOS tube Q1 is grounded；
The input terminal of the energy supply control module connects the output end of the battery, the output end connection of the energy supply control module
The input terminal of system power supply feeder ear (VBAT)；
The input terminal of the charge discharging resisting module connects the output end of the system power supply feeder ear.
2. terminal power-down circuit as described in claim 1, which is characterized in that the terminal power-down circuit further includes that power-off is reminded
Module, the output end of the input terminal connection charge discharging resisting module of the power-off reminding module.
3. terminal power-down circuit as described in claim 1, which is characterized in that the charge discharging resisting module is specially two-level concatenation
Charge discharging resisting circuit.
4. terminal power-down circuit as described in claim 1, which is characterized in that the energy supply control module includes second (PMOS)
It manages (Q2)；
The drain electrode of second (PMOS) pipes (Q2) is connect with the battery；
The grid of second (PMOS) pipes (Q2) is connect with the input terminal of first capacitance (C1)；
The source electrode of second (PMOS) pipes (Q2) is connect with the system power supply feeder ear.
5. terminal power-down circuit as described in claim 1, which is characterized in that the charge discharging resisting module includes the 4th resistance
(R4), the 5th resistance (R5), the 6th resistance (R6) and third (NMOS) pipe (Q3) and the 4th (NMOS) pipes (Q4)；
4th resistance (R4) is connected with the 5th resistance (R5), and the 4th resistance (R4) is connect with the output end of system power supply feeder ear；
The grid that the input terminal of 4th resistance (R4) manages (Q3) with third (NMOS) is connect；
The output end that 6th resistance (R6) is separately connected battery is connected with the drain electrode of third (NMOS) pipe (Q3)；
Third (NMOS) manages the source electrode ground connection of (Q3)；
The drain electrode that the grid of 4th (NMOS) pipes (Q4) manages (Q3) with third (NMOS) is connect；
The drain electrode of 4th (NMOS) pipes (Q4) is connect with the output end of system power supply feeder ear；
4th (NMOS) manages the source electrode ground connection of (Q4).
6. terminal power-down circuit as claimed in claim 2, which is characterized in that the power-off reminding module include motor (M1),
7th resistance (R7), the 8th resistance (R8) and the 5th (NMOS) pipe Q5；
The grid of 5th (NMOS) pipes (Q5) is connect with the output end of the 6th resistance (R6)；
5th (NMOS) manages the output end of the drain electrode and the parallel resistance of the 7th resistance (R7) and the 8th resistance (R8) composition of (Q5)
Connection；
5th (NMOS) manages the source electrode ground connection of (Q5)；
The output end of input terminal connection battery and the output end of motor (M1) of motor (M1) connect the 7th resistance (R7) and the
The input terminal connection of the parallel resistance of eight resistance (R8) composition.
7. a kind of mobile terminal, including battery, power-supply management system and system power supply feeder ear, which is characterized in that the movement
Terminal further includes claim 1 to 6 any one of them circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264327.XA CN104062917B (en) | 2014-06-13 | 2014-06-13 | A kind of terminal power-down circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264327.XA CN104062917B (en) | 2014-06-13 | 2014-06-13 | A kind of terminal power-down circuit and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104062917A CN104062917A (en) | 2014-09-24 |
| CN104062917B true CN104062917B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264327.XA Expired - Fee Related CN104062917B (en) | 2014-06-13 | 2014-06-13 | A kind of terminal power-down circuit and mobile terminal |
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| Country | Link |
|---|---|
| CN (1) | CN104062917B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870986A (en) * | 2015-12-09 | 2016-08-17 | 乐视移动智能信息技术（北京）有限公司 | Battery power-off method and apparatus and mobile terminal |
| CN113765356A (en) * | 2021-09-29 | 2021-12-07 | 北京千丁智能技术有限公司 | Power supply restarting circuit |
| CN113964919B (en) * | 2021-11-18 | 2024-08-13 | 阳光电源股份有限公司 | Discharging circuit and discharging method of charging module |
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| CN101980444A (en) * | 2010-08-05 | 2011-02-23 | 上海闻泰电子科技有限公司 | Circuit for forcibly resetting system powered by battery without removing battery |
| CN201789480U (en) * | 2010-09-02 | 2011-04-06 | 中兴通讯股份有限公司 | Circuit reusing power on/off key for realizing reset function and portable mobile terminal |
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| CN103187715A (en) * | 2011-12-27 | 2013-07-03 | 三星Sdi株式会社 | Battery protection circuit |
| CN203299741U (en) * | 2013-05-14 | 2013-11-20 | Tcl集团股份有限公司 | Power-down reset circuit of electronic terminal and electronic terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331627B1 (en) * | 2002-01-24 | 2012-04-18 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method of driving the semiconductor device |
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2014
- 2014-06-13 CN CN201410264327.XA patent/CN104062917B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463492A (en) * | 2001-06-01 | 2003-12-24 | 皇家菲利浦电子有限公司 | Optimized on/off control circuit |
| CN200990600Y (en) * | 2006-08-17 | 2007-12-12 | 康佳集团股份有限公司 | Cell phone with cold starting function |
| CN101980444A (en) * | 2010-08-05 | 2011-02-23 | 上海闻泰电子科技有限公司 | Circuit for forcibly resetting system powered by battery without removing battery |
| CN201789480U (en) * | 2010-09-02 | 2011-04-06 | 中兴通讯股份有限公司 | Circuit reusing power on/off key for realizing reset function and portable mobile terminal |
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| CN103187715A (en) * | 2011-12-27 | 2013-07-03 | 三星Sdi株式会社 | Battery protection circuit |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104062917A (en) | 2014-09-24 |
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