CN108540115A - A kind of low consumption circuit and electronic device - Google Patents
A kind of low consumption circuit and electronic device Download PDFInfo
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- CN108540115A CN108540115A CN201810556292.5A CN201810556292A CN108540115A CN 108540115 A CN108540115 A CN 108540115A CN 201810556292 A CN201810556292 A CN 201810556292A CN 108540115 A CN108540115 A CN 108540115A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
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- 230000004069 differentiation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
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Abstract
The invention discloses a kind of low consumption circuit and electronic devices, low consumption circuit includes trigger element, delay unit and first switch unit, first switch unit includes the first controlled end, first into electric end and the first current output terminal, first is used to be connected to load into electric end for being connected to power supply, the first current output terminal；The input terminal of delay unit is connected to trigger element, and output end is connected to the first controlled end；Further include second switch unit and controller, second switch unit includes the second controlled end, second into electric end and the second current output terminal；First controlled end is also attached to second into electric end, and the second current output terminal is connected to low level；Controller is turned on or off by the second controlled end control second into electric end and the second current output terminal for monitoring the duration that trigger element is triggered, and according to the duration being triggered.The opportunity that power supply powers to the load can be controlled with accurate judgement, avoid accidentally controlling.
Description
Technical field
The present invention relates to electronic technology more particularly to a kind of low consumption circuits and electronic device.
Background technology
Many electronic equipments are all by battery powered, since battery capacity is limited, it is therefore desirable to reduce as far as possible
The unnecessary power consumption of electronic equipment.Although the prior art is mentioned sets a controllable switch element between power supply and load, pass through control
Power supply of the thorough deenergization of the controllable switch element to load is made, but how to determine the opportunity of control controllable switch element,
It is still problem to be solved to avoid accidentally controlling.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of low consumption circuit and electronic device,
It can solve to set a controllable switch element between power supply and load, by controlling the thorough deenergization of the controllable switch element to negative
When the power supply of load, how to determine the opportunity of control controllable switch element, avoid the problem that accidentally controlling.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of low consumption circuit, including trigger element, delay unit and first switch unit, the first switch unit packet
The first controlled end, first are included into electric end and the first current output terminal, described first into electric end for being connected to power supply, described first goes out electricity
End is for being connected to load；
The input terminal of the delay unit is connected to the trigger element, and output end is connected to first controlled end；
Further include second switch unit and controller, the second switch unit includes the second controlled end, second into electricity
End and the second current output terminal；
First controlled end is also attached to described second into electric end, and second current output terminal is connected to low level；
The controller is used to monitor the duration that the trigger element is triggered, and according to the duration being triggered described in
Second controlled end control described second is turned on or off into electric end and the second current output terminal.
Further, first controlled end and first into the voltage between electric end be more than the first conducting voltage when, it is described
First is connected into electric end and the first current output terminal.
Further, the duration that the trigger element is triggered be less than shear duration when, the delay unit output end with
First is more than the first conducting voltage into the voltage between electric end；
When the duration that the trigger element is triggered reaches shear duration, the delay unit output end and first is into electric end
Between voltage be not more than the first conducting voltage.
Further, the duration that the basis is triggered is by second controlled end control described second into electric end and the
Two current output terminals are turned on or off, and specifically include at least one of following：
If the duration being triggered reaches booting duration, described second is controlled into electric end by second controlled end
It is connected with the second current output terminal；
If the duration being triggered reaches shutdown duration, described second is controlled into electric end by second controlled end
It is disconnected with the second current output terminal；
If the duration being triggered, which reaches, accidentally touches duration, described second is controlled into electric end by second controlled end
It is disconnected with the second current output terminal.
Further, the trigger element includes that one end is connected to low level button, the other end connection of the button
In the delay unit.
Further, the delay unit includes the first capacitance and first resistor in parallel, first capacitance and first
One end of resistance is connected to the trigger element, and the other end is connected to first controlled end；
The delay unit further includes second resistance, and the second resistance is connected to first controlled end and first into electricity
Between end.
Further, the trigger element includes antenna and rectifier, what the rectifier was used to obtain on the antenna
Energy is converted to direct current.
Further, the delay unit includes the second capacitance and third switch unit, and the third switch unit includes
Into electric end and third current output terminal, the third is connected to first controlled end, the third into electric end for third controlled end, third
Current output terminal is connected to low level；One end of second capacitance is connected to the trigger element, and the other end is connected to the third
Controlled end；
The delay unit further includes 3rd resistor, and the third controlled end is connected to low electricity by the 3rd resistor
It is flat.
Further, the controller is connected to first current output terminal, and described first leads into electric end and the first current output terminal
When logical, the controller is connected to power supply by first current output terminal.
Further, the low consumption circuit further includes under-voltage protection unit, the input of the under-voltage protection unit
End is connected to first current output terminal, and output end is connected to second controlled end；The under-voltage protection unit is for detecting
The voltage of first current output terminal passes through second controlled end when the voltage of first current output terminal is less than predeterminated voltage
Described second is controlled to disconnect into electric end and the second current output terminal.
A kind of low consumption circuit, including trigger element, controller, switch unit, first switch control unit and second open
Control unit is closed, the switch unit is for being connected between power supply and load；The first switch control unit is connected to institute
It states between controller and switch unit, the controller is also attached to the trigger element, and the second switch control unit connects
It is connected between the trigger element and the switch unit；The controller is configured as：
When the duration for detecting that the trigger element is triggered reaches booting duration, it is single to control the first switch control
Member is in first state, so that the switching means conductive；And
When the duration for detecting that the trigger element is triggered reaches shutdown duration, it is single to control the first switch control
Member is in the second state, so that the second switch control unit controls the switch unit and disconnects.
A kind of electronic device, it is characterised in that：Including power management module, the power management module includes above-mentioned low
Power digital circuit.
Compared with prior art, the advantageous effect of the embodiment of the present invention is：Trigger element is handled by delay unit to be touched
The signal generated is sent out, to which first switch unit be connected when triggering the short time so that power supply powers to the load, and triggers for a long time
When, the power supply to load is cut off in control first switch unit shutdown；Further opened according to triggering duration control second by controller
Unit on or off is closed, to maintain or stop the conducting of first switch unit；Power supply is controlled to negative so as to accurate judgement
It on the opportunity for carrying power supply, avoids accidentally controlling.For example, when relevant apparatus is being placed on desktop, knapsack, pocket etc., trigger element quilt
When triggering for a long time, can also power supply from deenergization to load, to preferably protecting power supply.
Description of the drawings
Fig. 1 is the structural schematic diagram of low consumption circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit diagram of low consumption circuit in Fig. 1；
Fig. 3 is another circuit diagram of low consumption circuit in Fig. 1.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
If Fig. 1 is a kind of structural schematic diagram of low consumption circuit.Low consumption circuit includes trigger element 110, delay unit
120 and first switch unit Q1.First switch unit Q1 includes the first controlled end, first into electric end and the first current output terminal, and first
Into electric end for being connected to power supply, the first current output terminal is for being connected to load.It is single that the input terminal of delay unit 120 is connected to triggering
Member 110, output end is connected to the first controlled end.
When trigger element 110 is just triggered, the level of the first controlled end can be changed by delay unit 120, to
Control first is connected into electric end with the first current output terminal, and power supply can power to the load, and load can work.If trigger element
110 are persistently triggered, and delay unit 120, which is delayed, reaches the electricity that preset shear duration can change the first controlled end again later
Flat, to which control first is disconnected into electric end and the first current output terminal, power supply stopping powers to the load, and load is also stopped.At this time
In addition to the energy loss of power supply itself, load will not power consumption, realize low-power consumption when shutdown.
As preferred embodiment, as shown in Figure 1, low consumption circuit further includes second switch unit Q2 and controller
MCU, second switch unit Q2 include the second controlled end, second into electric end and the second current output terminal；
The first controlled end of first switch unit Q1 is also attached to the second of second switch unit Q2 into electric end, second switch
The second current output terminal of unit Q2 is connected to low level.
Controller MCU for monitoring the duration that trigger element 110 is triggered, and according to the duration being triggered by second by
Control end control second is turned on or off into electric end and the second current output terminal.
Controller MCU can monitor whether trigger element 110 is triggered, when trigger element 110 is just triggered, controller
MCU can control second by the second controlled end and is connected into electric end and the second current output terminal, and the first controlled end is made to pass through second switch
Unit Q2 is connected to low level, and the output end of delay unit 120 is also connected to low level；Trigger element 110 and delay are single at this time
The power consumption very little of member 120.
As preferred embodiment, the first controlled end and first is more than the first conducting voltage into the voltage between electric end
When, first is connected into electric end and the first current output terminal.First controlled end is connected to low level, Ke Yibao by second switch unit Q2
First is held to be connected into electric end and the first current output terminal.
As preferred embodiment, when the duration that trigger element 110 is triggered is less than shear duration, delay unit 120
Output end and first is more than the first conducting voltage into the voltage between electric end；Thus when trigger element 110 is triggered in short-term, the
One is connected into electric end and the first current output terminal.
When the duration that trigger element 110 is triggered reaches shear duration, 120 output end of delay unit and first into electric end it
Between voltage be not more than the first conducting voltage；To which when trigger element 110 is triggered for a long time, first goes out into electric end and first
Electric end disconnects.
As preferred embodiment, in the present embodiment, as shown in Fig. 2, trigger element 110 be connected to including one end it is low
The other end of the button S1 of level, button S1 are connected to delay unit 120.Trigger element 110 is triggered, specially button S1
It is pressed.
As preferred embodiment, delay unit 120 includes the first capacitance C1 and first resistor R1 of parallel connection, the first electricity
The one end for holding C1 and first resistor R1 is connected to trigger element 110, and the other end is connected to the first controlled end, i.e. PMOS_EN；Delay
Unit 120 further includes second resistance R2, and second resistance R2 is connected to the first controlled end and first between electric end.
When button S1 is just pressed, since the voltage at the first both ends capacitance C1 in delay unit 120 cannot be mutated,
The level of first controlled end is pulled low；When the duration that button S1 is pressed is less than shear duration, 120 output end of delay unit and the
One is more than the first conducting voltage into the voltage between electric end, and first is connected into electric end and the first current output terminal.
When button S1 has just been long pressed, since the both ends first resistor R1 have voltage, the first capacitance C1 to be electrically charged, when filling
Electricity reaches a certain level so that the first controlled end and first is less than the first conducting voltage, first switch into the voltage between electric end
Unit Q1 shutdowns, first disconnects into electric end and the first current output terminal；Reach shear to realize the time being pressed as button S1
When duration, 120 output end of delay unit and first is less than the first conducting voltage into the voltage between electric end, make first into electric end and
First current output terminal disconnects.
As preferred embodiment, first resistor R1 and second resistance R2 need to meet following relationship：
Vout × R2 ÷ (R1 ﹢ R2) ＜ Vth；
Wherein, Vout indicates that supply voltage, Vth indicate that the first conducting voltage, R1, R2 indicate first resistor R1, the respectively
The resistance value of two resistance R2.It thereby may be ensured that the first capacitance C1 is charged to a certain degree, can make the first controlled end and
One is less than the first conducting voltage into the voltage between electric end, to turn off first switch unit Q1.
As preferred embodiment, the pin GPIO2 of controller MCU is defined as drawing for the detection triggering of trigger element 110
Foot SW_POWER, the pin are connected to trigger element 110 by a diode D1 so that when the first controlled end is by second switch list
When first Q2 is pulled to low level, the judgement that controller MCU acts button S1 is not interfered with.
In the present embodiment, the pin GPIO1 of controller MCU be defined as through the second controlled end control second into electric end and
The pin POWER_LOCK that second current output terminal is turned on or off.
As preferred embodiment, second is controlled into electric end and second by the second controlled end according to the duration being triggered
Current output terminal is turned on or off, specific as follows.
As preferred embodiment, when to monitor that the duration that trigger element 110 is triggered is less than preset by controller MCU
Be switched on duration, is not triggered if after 1.5 seconds, is not just led into electric end and the second current output terminal by the second controlled end control second
It is logical, if shear duration is arrived in the delay of delay unit 120, first will be made to be disconnected into electric end and the first current output terminal, power supply stops
It powers to the load.To realize when trigger element 110 is triggered the time less than booting duration, load will not normal boot-strap.
As preferred embodiment, when controller MCU monitors that the duration that trigger element 110 is triggered reaches preset
Be switched on duration, is just connected into electric end and the second current output terminal by the second controlled end control second；Even if the delay of delay unit 120 is arrived
Shear duration does not make first to be disconnected into electric end and the first current output terminal yet, to maintain power supply to power to the load, realizes normal boot-strap.
As preferred embodiment, after low consumption circuit or load power on booting, when controller MCU detects that triggering is single
Member 110 is by retriggered, and the duration being triggered reaches preset shutdown duration, such as 1.5 seconds, is just controlled by the second controlled end
Second disconnects into electric end and the second current output terminal, if the delay of delay unit 120 has reached shear duration, delay unit 120
Output end namely the first controlled end and first can so that first is disconnected into electric end and the first current output terminal into the voltage between electric end
It opens, power supply stopping powers to the load, and realizes the effect of triggering shutdown for a long time.
As previously mentioned, when trigger element 110 is just triggered, the first controlled end can be changed by delay unit 120
Level, to which control first is connected into electric end with the first current output terminal, power supply can power to the load, and load can work；When tactile
Bill member 110 is persistently triggered, and the delay of delay unit 120 can change the first controlled end again after reaching preset shear duration
Level, to which control first is disconnected into electric end and the first current output terminal；And when controller MCU monitors 110 quilt of trigger element
The duration of triggering reaches preset booting duration, can control second by the second controlled end and is connected into electric end and the second current output terminal,
Power supply is maintained to power to the load.But in the present embodiment, when controller MCU monitors the duration that trigger element 110 is triggered
Reach preset mistake and touch duration, such as 5 seconds, is just disconnected into electric end and the second current output terminal by the second controlled end control second, due to
Delay unit 120 has been delayed more than shear duration, therefore the output end of delay unit 120 namely the first controlled end at this time
And first can make first to be disconnected into electric end and the first current output terminal into the voltage between electric end, power supply stopping powers to the load.
To realize when the relevant apparatus for being loaded with low consumption circuit provided in an embodiment of the present invention, it is being placed on desktop, knapsack, clothes
Pocket etc., when trigger element 110 is triggered for a long time, power supply will not normally power to the load, and relevant apparatus will not open by mistake machine, from
And avoid power consumption of the trigger element 110 by false triggering when.
As preferred embodiment, controller MCU is connected to the first current output terminal, and first leads into electric end and the first current output terminal
When logical, controller MCU is connected to power supply by the first current output terminal, and obtaining electric energy from power supply works.Therefore, work as first switch
When unit Q1 is not turned on, controller MCU will not consume energy, and further reduced power consumption.
As preferred embodiment, in another embodiment, as shown in figure 3, trigger element 110 include antenna ANT and
Rectifier DZL, rectifier DZL are used to the antenna ANT energy obtained being converted to direct current.
Further include filter capacitor C3 as preferred embodiment trigger element 110.
As preferred embodiment, delay unit 120 includes the second capacitance C2 and third switch unit Q3.Such as Fig. 3 institutes
Show, third switch unit Q3 includes third controlled end, third into electric end and third current output terminal, third into electric end be connected to first by
End is controlled, third current output terminal is connected to low level；One end of second capacitance C2 is connected to trigger element 110, and the other end is connected to
Three controlled ends.
Delay unit 120 further includes 3rd resistor R3, and third controlled end is connected to low level by 3rd resistor R3.
In the present embodiment, delay unit 120 also include second resistance R2, second resistance R2 be connected to the first controlled end and
First between electric end.
In the present embodiment, the specially antenna ANT that is triggered of trigger element 110 is coupled with other wireless launchers, is obtained
Get radio energy.When antenna ANT gets radio energy, trigger element 110 provides voltage to delay unit 120, the electricity
Pressure controls third controlled end by the second capacitance C2 and third switch unit Q3 is connected, to which the first controlled end is opened by third
It closes unit Q3 and is connected to low level so that the Q1 conductings of first switch unit, first is connected into electric end and the first current output terminal.
In the present embodiment, the pin GPIO3 of controller MCU is defined as the pin NFC_ that detection trigger element 110 triggers
DET, the pin are connected to trigger element 110 by a resistance R4.
When the duration that trigger element 110 is triggered reaches preset shear duration, the second capacitance C2 is by from antenna ANT
The electric energy of acquisition is charged to control third controlled end enough and third switch unit Q3 is turned off, to the voltage etc. of the first controlled end
In the voltage of power supply, the first controlled end and first is less than the first conducting voltage into the voltage between electric end, and first into electric end and the
One current output terminal disconnects, and power supply stopping powers to the load, and load is also stopped.At this time in addition to the energy loss of power supply itself, bear
Carry will not power consumption, realize shutdown when low-power consumption.
In the present embodiment, the pin GPIO1 of controller MCU be defined as through the second controlled end control second into electric end and
The pin POWER_LOCK that second current output terminal is turned on or off.
As preferred embodiment, second is controlled into electric end and second by the second controlled end according to the duration being triggered
Current output terminal is turned on or off, and further includes following pattern.
After low consumption circuit or load power on booting, when controller MCU judges length between antenna ANT and other related devices
Time does not communicate, and is just disconnected into electric end and the second current output terminal by the second controlled end control second, due to the second capacitance at this time
C2 is filled with, so the first controlled end and first is less than the first conducting voltage into the voltage between electric end, first into electric end and
First current output terminal disconnects, and power supply stopping powers to the load, and load is also stopped.
Low consumption circuit provided in an embodiment of the present invention can be designed as individual power management module, can also integrate
Into electronic device such as mp3, bluetooth headset, mobile power device, i.e.,：
A kind of electronic device, including power management module, the power management module include low consumption circuit above-mentioned.Low work(
The main control chip in independent chip or electronic device may be used in controller MCU in power consumption road, in bluetooth headset
Bluetooth chip.
As being further improved for the embodiment of the present invention, as shown in Figures 2 and 3, low consumption circuit further includes that low-voltage is protected
Shield unit (figure is not noted)；In the present embodiment, under-voltage protection unit includes voltage checking chip U2, and chip model may be used
XC6126 series.The input terminal of under-voltage protection unit is connected to the first current output terminal, and output end is connected to the second controlled end；Low electricity
Pressure protection location is used to detect the voltage of the first current output terminal, when the voltage of the first current output terminal is less than predeterminated voltage, passes through second
Controlled end control second is disconnected into electric end and the second current output terminal, to prevent power supply over-discharge.Even if controller MCU is to second
Controlled end exports high level, second switch unit Q2 can not also be connected, therefore first switch unit Q1 is unable to maintain that conducting, electricity
Pond will not export.
Based on identical inventive concept, the embodiment of the present invention additionally provides another realization method of low consumption circuit.This is low
Power digital circuit includes trigger element, controller, switch unit, first switch control unit and second switch control unit, switch
Unit is for being connected between power supply and load；First switch control unit is connected between controller and switch unit, control
Device is also attached to trigger element, and second switch control unit is connected between trigger element and switch unit；Controller is configured
For：
When detecting that duration that trigger element is triggered reaches booting duration, control first switch control unit is in the
One state, so that switching means conductive；And
When detecting that duration that trigger element is triggered reaches shutdown duration, control first switch control unit is in the
Two-state, so that second switch control unit controls switch unit.
As preferred embodiment, switch unit can be the first switch unit Q1 of previous embodiment, first switch
Control unit can be the second switch unit Q2 of previous embodiment, and second switch control unit can be prolonging for previous embodiment
Shi Danyuan 120.
Based on the foregoing description, it will be appreciated by those skilled in the art that the low consumption circuit of the present embodiment, and it is appreciated that this reality
Applying the low consumption circuit of example, there is no limit first switch control unit, the specific implementations of second switch control unit, then this
It does not repeat.
Low consumption circuit and electronic device provided in an embodiment of the present invention handle trigger element by delay unit and are triggered
The signal of generation, to which first switch unit be connected when triggering the short time so that power supply powers to the load, and triggers for a long time
When, the power supply to load is cut off in control first switch unit shutdown；Further opened according to triggering duration control second by controller
Unit on or off is closed, to maintain or stop the conducting of first switch unit；Power supply is controlled to negative so as to accurate judgement
It on the opportunity for carrying power supply, avoids accidentally controlling.
The present embodiments relate to " first ", " second " and " third " be only used for distinguishing different components, do not have differentiation
Sequential action.
First switch unit Q1, second switch unit Q2, third switch unit Q3 can be comprising corresponding controlled end, into electricity
It holds, integrated circuit, independent component or the circuit with multiple components of current output terminal and corresponding turn-on logic.
As preferred embodiment, first switch unit Q1 includes PMOS tube, and second switch unit Q2, third switch are single
First Q3 includes NMOS tube.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (12)
1. a kind of low consumption circuit, it is characterised in that：Including trigger element, delay unit and first switch unit, described first
Switch unit is used to be connected to power supply into electric end and the first current output terminal, described first including the first controlled end, first into electric end, institute
The first current output terminal is stated for being connected to load；
The input terminal of the delay unit is connected to the trigger element, and output end is connected to first controlled end；
Further include second switch unit and controller, the second switch unit include the second controlled end, second into electric end and
Second current output terminal；
First controlled end is also attached to described second into electric end, and second current output terminal is connected to low level；
The controller passes through described second for monitoring the duration that the trigger element is triggered according to the duration being triggered
Controlled end control described second is turned on or off into electric end and the second current output terminal.
2. low consumption circuit as described in claim 1, it is characterised in that：First controlled end and first is between electric end
When voltage is more than the first conducting voltage, described first is connected into electric end and the first current output terminal.
3. low consumption circuit as claimed in claim 2, it is characterised in that：The duration that the trigger element is triggered is less than shear
When duration, the delay unit output end and first is more than the first conducting voltage into the voltage between electric end；
When the duration that the trigger element is triggered reaches shear duration, the delay unit output end and first is between electric end
Voltage be not more than the first conducting voltage.
4. low consumption circuit as claimed in claim 3, it is characterised in that：The duration that the basis is triggered passes through described second
Controlled end control described second is turned on or off into electric end and the second current output terminal, specifically includes at least one of following：
If the duration being triggered reaches booting duration, by second controlled end control described second into electric end and the
Two current output terminals are connected；
If the duration being triggered reaches shutdown duration, by second controlled end control described second into electric end and the
Two current output terminals disconnect；
If the duration being triggered, which reaches, accidentally touches duration, by second controlled end control described second into electric end and the
Two current output terminals disconnect.
5. the low consumption circuit as described in any one of claim 1-4, it is characterised in that：The trigger element includes that one end connects
It is connected to low level button, the other end of the button is connected to the delay unit.
6. low consumption circuit as claimed in claim 5, it is characterised in that：The delay unit include in parallel the first capacitance and
One end of first resistor, first capacitance and first resistor is connected to the trigger element, and the other end is connected to described first
Controlled end；
The delay unit further includes second resistance, the second resistance be connected to first controlled end and first into electric end it
Between.
7. the low consumption circuit as described in any one of claim 1-4, it is characterised in that：The trigger element include antenna and
Rectifier, the rectifier are used to the energy that the antenna obtains being converted to direct current.
8. low consumption circuit as claimed in claim 7, it is characterised in that：The delay unit includes that the second capacitance and third are opened
Unit is closed, the third switch unit includes third controlled end, third into electric end and third current output terminal, and the third connects into electric end
It is connected to first controlled end, the third current output terminal is connected to low level；One end of second capacitance is connected to described touch
Bill member, the other end are connected to the third controlled end；
The delay unit further includes 3rd resistor, and the third controlled end is connected to low level by the 3rd resistor.
9. low consumption circuit as described in claim 1, it is characterised in that：The controller is connected to first current output terminal,
Described first into electric end and the first current output terminal when being connected, and the controller is connected to power supply by first current output terminal.
10. low consumption circuit as described in claim 1, it is characterised in that：Further include under-voltage protection unit, the low-voltage
The input terminal of protection location is connected to first current output terminal, and output end is connected to second controlled end；The low-voltage is protected
Shield unit is used to detect the voltage of first current output terminal, when the voltage of first current output terminal is less than predeterminated voltage, passes through
The second controlled end control described second is disconnected into electric end and the second current output terminal.
11. a kind of low consumption circuit, it is characterised in that：It is single including trigger element, controller, switch unit, first switch control
Member and second switch control unit, the switch unit is for being connected between power supply and load；The first switch control is single
Member is connected between the controller and switch unit, and the controller is also attached to the trigger element, the second switch
Control unit is connected between the trigger element and the switch unit；The controller is configured as：
When the duration for detecting that the trigger element is triggered reaches booting duration, control at the first switch control unit
In first state, so that the switching means conductive；And
When the duration for detecting that the trigger element is triggered reaches shutdown duration, control at the first switch control unit
In the second state, so that the second switch control unit controls the switch unit and disconnects.
12. a kind of electronic device, it is characterised in that：Including power management module, the power management module includes that right such as is wanted
Ask the low consumption circuit described in any one of 1-10 or low consumption circuit as claimed in claim 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556292.5A CN108540115A (en) | 2018-05-31 | 2018-05-31 | A kind of low consumption circuit and electronic device |
| PCT/CN2019/080522 WO2019228052A1 (en) | 2018-05-31 | 2019-03-29 | Low power consumption circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556292.5A CN108540115A (en) | 2018-05-31 | 2018-05-31 | A kind of low consumption circuit and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108540115A true CN108540115A (en) | 2018-09-14 |
Family
ID=63473356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810556292.5A Pending CN108540115A (en) | 2018-05-31 | 2018-05-31 | A kind of low consumption circuit and electronic device |
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| Country | Link |
|---|---|
| CN (1) | CN108540115A (en) |
| WO (1) | WO2019228052A1 (en) |
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| CN110497821A (en) * | 2019-08-20 | 2019-11-26 | 江西恒动新能源有限公司 | A kind of charging wake-up system and its control method |
| WO2019228052A1 (en) * | 2018-05-31 | 2019-12-05 | 深圳市文鼎创数据科技有限公司 | Low power consumption circuit and electronic device |
| CN112639634A (en) * | 2020-05-07 | 2021-04-09 | 深圳市大疆创新科技有限公司 | On-off control device and electronic equipment |
| CN114915007A (en) * | 2021-02-09 | 2022-08-16 | 上海瑞仕格医疗科技有限公司 | Power supply system, control method of power supply system, and readable storage medium |
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| CN114915007A (en) * | 2021-02-09 | 2022-08-16 | 上海瑞仕格医疗科技有限公司 | Power supply system, control method of power supply system, and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019228052A1 (en) | 2019-12-05 |
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