CN206077348U - A kind of on/off circuit and its device of mobile terminal - Google Patents
A kind of on/off circuit and its device of mobile terminal Download PDFInfo
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- CN206077348U CN206077348U CN201621110336.4U CN201621110336U CN206077348U CN 206077348 U CN206077348 U CN 206077348U CN 201621110336 U CN201621110336 U CN 201621110336U CN 206077348 U CN206077348 U CN 206077348U
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Abstract
The utility model discloses the on/off circuit and its device of a kind of mobile terminal, on/off circuit is connected with self-locking button, battery, power supply chip and baseband chip, including starting module and shutdown module；The starting module connection self-locking button, battery and power supply chip；The shutdown module connection self-locking button, baseband chip and power supply chip；Starting module detection self-locking button be pressed and it is in the conduction state when, export low level starting-up signal and postpone Preset Time startup power supply chip to boot up operation, Preset Time controls starting-up signal upset after reaching be high level to keep current state；When the shutdown module detection self-locking button is pressed and is off, the off signal control baseband chip for exporting high level performs power-off operation.Power on/off function can also be realized using self-locking button, the type selecting of switching on and shutting down button is no longer limited to by existing power on-off modes, its circuit structure is simple, reliability is high.
Description
Technical field
This utility model is related to switching on and shutting down technical field, the on/off circuit and its dress of more particularly to a kind of mobile terminal
Put.
Background technology
With the continuous progress of communication network technology, mobile terminal has become one of popularity rate highest communication product.
In the common switching on and shutting down scheme of mobile terminal, typically all adopt and power supply chip switching on and shutting down GPIO pins are passed through into physical button（I.e.
Switching on and shutting down button）Length realized power up function in the way of 3 to 5 seconds.Pass through after 3 to 5 seconds by same button in open state length
Software selects shutdown（Shutdown icon on screen is clicked on）Or it is long by direct hardware shutdown in 8 to 10 seconds.Current scheme pair
Starting key needs resilience functional requirement.Self-locking class button, driving lever class switch etc. will cannot be directly used to opening for existing platform
Shutdown design.Existing power on-off modes have impact on the limitation of switching on and shutting down button type selecting（The button of resiliency formula can only be used,
Self-locking button can not be used）.
It is therefore desirable to being improved to prior art.
Utility model content
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of switch of mobile terminal
Electromechanical road and its device, to solve the problems, such as that existing power on-off modes have limited to the type selecting of switching on and shutting down button.
In order to achieve the above object, this utility model takes technical scheme below：
A kind of on/off circuit of mobile terminal, arrange in the terminal, with self-locking button, battery, power supply chip and
Baseband chip connects, and which includes starting module and shutdown module；
Starting module detection self-locking button be pressed and it is in the conduction state when, export low level starting-up signal simultaneously
Postpone Preset Time startup power supply chip to boot up operation, Preset Time controls starting-up signal upset after reaching be high level
To keep current state；
When the shutdown module detection self-locking button is pressed and is off, the off signal control of high level is exported
Baseband chip processed performs power-off operation；
The starting module connection self-locking button, battery and power supply chip；The shutdown module connection self-locking button, base band
Chip and power supply chip.
In the on/off circuit of described mobile terminal, the starting module include time-delay trigger, the first electric capacity, first
Audion, first resistor, second resistance and 3rd resistor；
The TRIGGER feet of the time-delay trigger connect one end, one end of first resistor and the Time-delayed trigger of the first electric capacity
The THRESHOLD feet of device, the other end ground connection of first resistor；First electric capacity the other end connection power end, the one of self-locking button
End and the emitter stage of the first audion, the other end connection battery-end of self-locking button；The OUTPUT feet connection electricity of time-delay trigger
Source chip, the RESET feet and VCC feet of time-delay trigger are all connected with battery-end；The base stage of first audion is electric by second
The emitter stage of resistance the first audion of connection, the base stage of the first audion are also grounded by 3rd resistor, the current collection of the first audion
Pole is grounded.
In the on/off circuit of described mobile terminal, the time-delay trigger be 555 time-delay triggers, model
NE555。
In the on/off circuit of described mobile terminal, the starting module also includes the 4th resistance；
One end of 4th resistance connects the other end of the first electric capacity, and the other end of the 4th resistance connects the first audion
Emitter stage.
In the on/off circuit of described mobile terminal, the starting module also includes the second electric capacity and the 3rd electric capacity；
Second capacitance connection between the CONTROL_VOLTAGE feet and ground of time-delay trigger, the 3rd electric capacity
It is connected between the VCC feet of time-delay trigger and ground.
In the on/off circuit of described mobile terminal, it is described shutdown module include the second audion, the 5th resistance, the 6th
Resistance and the 7th resistance；
The base stage of second audion connects power end by the 5th resistance, and the base stage of the second audion also passes through the 6th
Resistance eutral grounding, the colelctor electrode of the second audion connect one end and the baseband chip of the 7th resistance, the other end connection of the 7th resistance
The voltage output end of power supply chip, the grounded emitter of the second audion.
In the on/off circuit of described mobile terminal, first audion is PNP triode, and the second audion is
NPN triode.
A kind of power on/off device of mobile terminal, including self-locking button, baseband chip and power supply chip；Characterized in that,
Also include described on/off circuit；
The on off operating mode control supply voltage output state of the battery to on/off circuit of the self-locking button；Battery is split
Shutdown circuit and power supply chip are powered；The on off operating mode of the on/off circuit detection self-locking button simultaneously exports corresponding start letter
Number and off signal；Power supply chip will be the supply voltage that the voltage conversion of battery is different pressure values whole to movement according to starting-up signal
End power supply, makes mobile terminal-opening；Baseband chip performs power-off operation according to off signal.
In the power on/off device of described mobile terminal, the self-locking button includes self-lock switch, driving lever class switch or band
The potentiometer of switch.
A kind of on/off circuit and its device of the mobile terminal provided compared to prior art, this utility model, switch
Electromechanical road is connected with self-locking button, battery, power supply chip and baseband chip, including starting module and shutdown module；The start
Module connection self-locking button, battery and power supply chip；The shutdown module connection self-locking button, baseband chip and power supply chip；
Starting module detection self-locking button be pressed and it is in the conduction state when, export low level starting-up signal and postpone to preset
To boot up operation, Preset Time controls starting-up signal upset after reaching is high level to keep working as to time startup power supply chip
Front state；When the shutdown module detection self-locking button is pressed and is off, the off signal control of high level is exported
Baseband chip processed performs power-off operation.Power on/off function can also be realized using self-locking button, the type selecting of switching on and shutting down button is no longer received
The limitation of existing power on-off modes, its circuit structure are simple, and reliability is high.
Description of the drawings
The schematic diagram of the power on/off device of the mobile terminal that Fig. 1 is provided for this utility model.
The circuit diagram of starting module in the on/off circuit of the mobile terminal that Fig. 2 is provided for this utility model.
The circuit diagram of module of shutting down in the on/off circuit of the mobile terminal that Fig. 3 is provided for this utility model.
Specific embodiment
This utility model provides a kind of on/off circuit and its device of mobile terminal, puts down existing mobile terminal is not adjusted
The power on/off function of self-locking button is realized in the case of the power on-off modes of platform.Make also open using the mobile terminal of self-locking button
Shutdown.To make the purpose of this utility model, technical scheme and effect clearer, clear and definite, develop simultaneously embodiment referring to the drawings
This utility model is further described.It should be appreciated that specific embodiment described herein is only new to explain this practicality
Type, is not used to limit this utility model.
Fig. 1 is referred to, this utility model provides a kind of power on/off device of mobile terminal and arranges in the terminal, with electricity
Pond connects, including self-locking button S, on/off circuit 10, baseband chip 20 and power supply chip 30.Institute's self-locking button S connecting valves
Electromechanical road 10 and battery, the connection baseband chip 20 of on/off circuit 10, power supply chip 30 and battery, the power supply chip 30 connect
Baseband chip 20 and battery.The on off operating mode control supply voltage output state of the battery to on/off circuit 10 of self-locking button S.
Battery is powered to on/off circuit 10 and power supply chip 30.The on off operating mode of the detection self-locking button of the on/off circuit 10 is simultaneously defeated
Go out corresponding starting-up signal and off signal；The voltage conversion of battery is different pressure values according to starting-up signal by power supply chip 30
Supply voltage（Meet the electricity consumption requirement of modules in mobile terminal）Mobile terminal is powered, mobile terminal-opening is made；Base band
Chip 20 performs power-off operation according to off signal.
Difference with the prior art is that the self-locking button S is self-locking type button, such as self-lock switch, driving lever class switch
Or the potentiometer of belt switch function etc..Self-locking button is closed after pressing and is tended to remain on, i.e. self-locking（Refer to that self-locking is passed through by bond energy
Locking mechanism is tended to remain on or off-state）.Disconnect by a self-locking button again and remaining off.Self-locking button S can
As the power key of mobile terminal.Based on self-locking button will not resilience characteristic, on/off circuit 10 can be according to self-locking button
On off operating mode simulates existing starting-up signal（Starting-up signal of the existing length by the output in 3 to 5 seconds of switching on and shutting down button）With shutdown letter
Number（The off signal that existing length is exported by software after 3 to 5 seconds by switching on and shutting down button）, with when self-locking button S length closes self-locking
Power-on operation is performed, self-locking button S performs power-off operation when disconnecting.It is to be appreciated that power supply chip and baseband chip
For existing chip in prior art, i.e. mobile terminal.
Fig. 2 and Fig. 3 is seen also, the on/off circuit 10 includes starting module 110 and shutdown module 120.It is described
The connection self-locking button S of starting module 110, battery and power supply chip 30；The shutdown module 120 connection self-locking button S, base band core
Piece 20 and power supply chip 30.The starting module 110 detection self-locking button be pressed and it is in the conduction state when, export low level
Starting-up signal POWERKEY and postpone Preset Time startup power supply chip 30 to boot up, Preset Time controls to open after reaching
Machine signal POWERKEY upsets are high level to keep current state.The shutdown detection self-locking button of module 120 is pressed and is in
During off-state, the off signal POWR_OFF control baseband chips 20 for exporting high level perform power-off operation.
As shown in Fig. 2 the starting module 110 include time-delay trigger U1, the first electric capacity C1, the first audion Q1,
One resistance R1, second resistance R1 and 3rd resistor R3.The TRIGGER feet of the time-delay trigger U1 connect the one of the first electric capacity C1
The THRESHOLD feet of end, one end of first resistor R1 and time-delay trigger U1, the other end ground connection of first resistor R1；First is electric
Hold the emitter stage of other end connection power end POWER, one end of self-locking button S and the first audion Q1 of C1, self-locking button S's
The other end connects battery-end VBAT；The OUTPUT feet connection power supply chip of time-delay trigger U1, the RESET feet of time-delay trigger U1
Battery-end VBAT is all connected with VCC feet；The base stage of the first audion Q1 connects the first audion Q1 by second resistance R2
Emitter stage, the base stage of the first audion Q1 is also grounded by 3rd resistor R3, the grounded collector of the first audion Q1.
Wherein, the time-delay trigger U1 is 555 time-delay triggers, and model can be using the NE555 of Philip.One or three pole
Pipe Q1 is PNP triode, and when power end POWER has voltage, the first audion Q1 disconnects, and during no-voltage, conducting is to the first electric capacity C1
Discharged.The Preset Time is 3 to 5 seconds, and low level starting-up signal is input to the switching on and shutting down GPIO pins of power supply chip
Realize mobile phone power-on function.
In further embodiment, the starting module 110 also includes the 4th resistance R4, and one end of the 4th resistance R4 connects
The other end of the first electric capacity C1 is connect, the other end of the 4th resistance R4 connects the emitter stage of the first audion Q1.4th resistance R4's
Effect is that the first electric capacity C1 makes the by second resistance R2,3rd resistor R3 partial pressure as power supply after self-locking button S disconnects
When one audion Q1 is turned on, can be to the first electric capacity C1 repid discharges.
In further embodiment, the starting module 110 also includes the second electric capacity C2 and the 3rd electric capacity C3；Described second is electric
Hold C2 to be connected between the CONTROL_VOLTAGE feet of time-delay trigger U1 and ground, the 3rd electric capacity C3 is connected to time delay and touches
Send out between the VCC feet and ground of device U1.Second electric capacity C2 strobes, to eliminate external interference, to guarantee time-delay trigger
Datum inside U1 is stablized.Second electric capacity C2 is filtered to the supply voltage of time-delay trigger U1, makes Time-delayed trigger
Device U1 work is more stable.
As shown in figure 3, the shutdown module 120 includes the second audion Q2, the 5th resistance R5, the 6th resistance R6 and the 7th
Resistance R7；The base stage of the second audion Q2 connects power end POWER, the base stage of the second audion Q2 by the 5th resistance R5
Also it is grounded by the 6th resistance R6, the colelctor electrode of the second audion Q2 connects one end of the 7th resistance R7 and baseband chip, the 7th
The other end of resistance R7 connects the voltage output end 1V8 of power supply chip, the grounded emitter of the second audion Q2.
Wherein, the second audion Q2 is NPN triode, the second audion Q2 cut-offs when no-voltage on power end POWER,
It is high level that off signal POWR_OFF is pulled up by the 1.8V of power supply chip output by the 7th resistance R7, and now baseband chip rings
Answer, cell phone system controls mobile phone shutdown by software mode.When power end POWER has voltage, the 5th resistance R5 and the 6th electric
Resistance R6 partial pressures turn on the second audion Q2, by off signal POWR_OFF drop-down for low level, now do not process.
Please continue to refer to Fig. 1 to Fig. 3, by taking mobile phone as an example, the power on/off device that the present embodiment is provided is based on existing mobile phone side
Case platform, its operation principle are specific as follows：
When self-locking button S is pressed, self-locking button S is constantly in closure conducting state.The cell voltage of battery-end VBAT
Export supply voltage is provided to power end POWER.Now the first electric capacity C1 has little time to charge, the 2nd foot of time-delay trigger U1（I.e.
TRIGGER feet）, the 6th foot（That is THRESHOLD feet）In high level, then the 3rd foot（That is OUTPUT feet）Export low level start
Signal POWERKEY is to power supply chip 30.
As the first electric capacity C1 charges, the 2nd foot, the current potential of the 6th foot decline, until the 2nd foot is less than the voltage 1/ on VCC feet
When 3, there is upset in circuit state；3rd foot is uprised by low, and is always maintained at down.The low level of starting-up signal POWERKEY is protected
Hold time T=1.1R1C1.Assume C1=22uF, R1=200k, then low level retention time about 5s.Power supply chip 30 detects start
Signal POWERKEY be low level, keep a period of time after from low to high when, mobile phone enter normal boot-strap flow process, i.e. power supply chip
30 pairs of cell voltages carry out existing process（As buck processes the various level of output to meet the power demands of each module, its
For prior art）Afterwards to other module for power supply in mobile phone, so as to realize power up function.Now, the 5th resistance R5 and the 6th electric
Resistance R6 partial pressures make the second audion Q2 base level be high level, the second audion Q2 conducting by off signal POWR_OFF draw
It is low, off signal POWR_OFF failures.
Remain off when self-locking button S is pressed again.Now no-voltage on power end POWER, the first electric capacity C1
By the first audion Q1 repid discharges.2nd foot of time-delay trigger U1, the 6th foot are changed into low level, then the high electricity of the 3rd foot output
Flat, now power supply chip 30 is failure to actuate, and keeps current open state, keeps the output of 1.8V.But the base of the second audion Q2
Pole level is pulled down to ground by the 6th resistance R6, and the second audion Q2 is in cut-off state, the colelctor electrode level of the second audion Q2
1.8V is pulled upward to by the 7th resistance R7, baseband chip is detected the off signal POWR_OFF of high level, reported by software
System enters the whole machine shutdown process of software, so as to realize shut-off function.
In sum, the on/off circuit and its device of the mobile terminal that this utility model is provided, is not adjusting existing shifting
In the case of the power on-off modes of dynamic terminal platform, power on/off function, the choosing of switching on and shutting down button can also be realized using self-locking button
Type is no longer limited to by existing power on-off modes, and its circuit structure is simple, and reliability is high.
It is understood that for those of ordinary skills, can according to the technical solution of the utility model and
Its utility model design in addition equivalent or change, and all these changes or replace should all belong to appended by this utility model
Scope of the claims.
Claims (9)
1. a kind of on/off circuit of mobile terminal, is arranged in the terminal, with self-locking button, battery, power supply chip and base
Microarray strip connects, it is characterised in that including starting module and shutdown module；
Starting module detection self-locking button be pressed and it is in the conduction state when, export low level starting-up signal and simultaneously postpone
To boot up operation, Preset Time controls starting-up signal upset after reaching be high level to protect to Preset Time startup power supply chip
Hold current state；
When the shutdown module detection self-locking button is pressed and is off, the off signal control base of high level is exported
Microarray strip performs power-off operation；
The starting module connection self-locking button, battery and power supply chip；The shutdown module connection self-locking button, baseband chip
And power supply chip.
2. the on/off circuit of mobile terminal according to claim 1, it is characterised in that the starting module includes time delay
Trigger, the first electric capacity, the first audion, first resistor, second resistance and 3rd resistor；
The TRIGGER feet of the time-delay trigger connect one end, one end of first resistor and the time-delay trigger of the first electric capacity
THRESHOLD feet, the other end ground connection of first resistor；First electric capacity the other end connection power end, one end of self-locking button and
The emitter stage of the first audion, the other end connection battery-end of self-locking button；The OUTPUT feet connection power supply core of time-delay trigger
Piece, the RESET feet and VCC feet of time-delay trigger are all connected with battery-end；The base stage of first audion is connected by second resistance
The emitter stage of the first audion is connect, the base stage of the first audion is also grounded by 3rd resistor, and the colelctor electrode of the first audion connects
Ground.
3. the on/off circuit of mobile terminal according to claim 2, it is characterised in that the time-delay trigger is 555
Time-delay trigger, model NE555.
4. the on/off circuit of mobile terminal according to claim 2, it is characterised in that the starting module also includes the
Four resistance；
One end of 4th resistance connects the other end of the first electric capacity, and the other end of the 4th resistance connects sending out for the first audion
Emitter-base bandgap grading.
5. the on/off circuit of mobile terminal according to claim 4, it is characterised in that the starting module also includes the
Two electric capacity and the 3rd electric capacity；
Second capacitance connection between the CONTROL_VOLTAGE feet and ground of time-delay trigger, the 3rd capacitance connection
Between the VCC feet and ground of time-delay trigger.
6. the on/off circuit of mobile terminal according to claim 5, it is characterised in that the shutdown module includes second
Audion, the 5th resistance, the 6th resistance and the 7th resistance；
The base stage of second audion connects power end by the 5th resistance, and the base stage of the second audion also passes through the 6th resistance
Ground connection, the colelctor electrode of the second audion connect one end and the baseband chip of the 7th resistance, the other end connection power supply of the 7th resistance
The voltage output end of chip, the grounded emitter of the second audion.
7. the on/off circuit of mobile terminal according to claim 6, it is characterised in that first audion is PNP
Audion, the second audion are NPN triode.
8. a kind of power on/off device of mobile terminal, including self-locking button, baseband chip and power supply chip；Characterized in that, also
Including the on/off circuit as described in claim 1-7 is arbitrary；
The on off operating mode control supply voltage output state of the battery to on/off circuit of the self-locking button；Battery is to switching on and shutting down
Circuit and power supply chip are powered；The on off operating mode of on/off circuit detection self-locking button and export corresponding starting-up signal and
Off signal；The supply voltage that the voltage conversion of battery is different pressure values is supplied to mobile terminal by power supply chip according to starting-up signal
Electricity, makes mobile terminal-opening；Baseband chip performs power-off operation according to off signal.
9. the power on/off device of mobile terminal according to claim 8, it is characterised in that the self-locking button includes self-locking
The potentiometer of switch, driving lever class switch or belt switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110336.4U CN206077348U (en) | 2016-10-11 | 2016-10-11 | A kind of on/off circuit and its device of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110336.4U CN206077348U (en) | 2016-10-11 | 2016-10-11 | A kind of on/off circuit and its device of mobile terminal |
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| Publication Number | Publication Date |
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| CN206077348U true CN206077348U (en) | 2017-04-05 |
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| CN201621110336.4U Active CN206077348U (en) | 2016-10-11 | 2016-10-11 | A kind of on/off circuit and its device of mobile terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
| CN110174934A (en) * | 2019-05-30 | 2019-08-27 | 努比亚技术有限公司 | A kind of power button device and mobile terminal |
| CN111949105A (en) * | 2020-07-27 | 2020-11-17 | 美唐科技(江苏)有限公司 | System starting circuit of handheld terminal based on high-voltage battery power supply |
| CN113534690A (en) * | 2020-04-14 | 2021-10-22 | Tcl新技术（惠州）有限公司 | Intelligent device, starting control circuit and control method thereof |
| CN113625856A (en) * | 2021-07-26 | 2021-11-09 | 上海金卓科技有限公司 | Switching on and shutting down circuit and electronic equipment |
-
2016
- 2016-10-11 CN CN201621110336.4U patent/CN206077348U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
| CN107340719B (en) * | 2017-08-25 | 2024-02-06 | 深圳市艾特智能科技有限公司 | Starting self-locking device and intelligent home control system |
| CN110174934A (en) * | 2019-05-30 | 2019-08-27 | 努比亚技术有限公司 | A kind of power button device and mobile terminal |
| CN113534690A (en) * | 2020-04-14 | 2021-10-22 | Tcl新技术（惠州）有限公司 | Intelligent device, starting control circuit and control method thereof |
| CN113534690B (en) * | 2020-04-14 | 2022-11-15 | Tcl新技术（惠州）有限公司 | Intelligent device, starting control circuit and control method thereof |
| CN111949105A (en) * | 2020-07-27 | 2020-11-17 | 美唐科技(江苏)有限公司 | System starting circuit of handheld terminal based on high-voltage battery power supply |
| CN111949105B (en) * | 2020-07-27 | 2022-02-18 | 美唐科技(江苏)有限公司 | System starting circuit of handheld terminal based on high-voltage battery power supply |
| CN113625856A (en) * | 2021-07-26 | 2021-11-09 | 上海金卓科技有限公司 | Switching on and shutting down circuit and electronic equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181123 Address after: The 1st and 2nd floors of Building No. 69, West Section of Gangyuan Road, Yibin Port-Linking Economic and Technological Development Zone, Sichuan Province Patentee after: Sichuan Kusai Technology Co., Ltd. Address before: 518000 17th Floor, Block A, Financial Science and Technology Building, 11 Keyuan Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Prize Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A switching circuit and its device of mobile terminal Effective date of registration: 20201207 Granted publication date: 20170405 Pledgee: Yibin commercial bank Limited by Share Ltd. science and Technology Branch Pledgor: Sichuan Kusai Technology Co.,Ltd. Registration number: Y2020510000112 |
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