CN104049717B - Power saving control circuit and electronic equipment - Google Patents
Power saving control circuit and electronic equipment Download PDFInfo
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- CN104049717B CN104049717B CN201410268377.5A CN201410268377A CN104049717B CN 104049717 B CN104049717 B CN 104049717B CN 201410268377 A CN201410268377 A CN 201410268377A CN 104049717 B CN104049717 B CN 104049717B
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Abstract
The invention provides a power saving control circuit and electronic equipment. The power saving control circuit comprises an LDO (low dropout regulator), an electrifying impact capacitor, a normally opened switch, a retaining circuit, an MCU (microprogrammed control unit), a first bleeder circuit and a second bleeder circuit; when the MCU is used for detecting whether the normally opened switch is pressed or not in the normal mode, if the normally opened switch is pressed, a low level is input to a first control pin to enter a power saving mode, wherein the normal mode refers to the mode that the MCU outputs high level to the first control pin. According to the power saving control circuit, power consumption of an MCU system with the LDO is reduced furthest during a low power consumption mode, so the power consumption of the MCU which is at an idle state or does not need to work is zero. The power supply for the MCU can be automatically cut off by using the enabling function of a switch pin of the LDO, and the power supply is restarted under proper excitation.
Description
Technical field
The present invention relates to electronic technology field, more particularly, to a kind of Saving Power Control Circuit and electronic equipment.
Background technology
There is low-power consumption mode at present in MCU (Micro Control Unit, micro-control unit) chip design process
Setting, to allow chip more power saving when the free time.But any low-power consumption mode, has all simply turned off part at present
No control unit, chip still has power consumption.
And design LDO (Low Drop-Out Regulator, low pressure difference linear voltage regulator) is to be in MCU system
The work of MCU chip provides stablizes suitable voltage, but, in traditional occupation mode, the output end (Vout) of LDO is only capable of carrying
For stable output voltage it is impossible to voluntarily break the output voltage of oneself, output can not be restarted under suitable excitation.
Therefore, how to ensure that the MCU system with LDO reduces power consumption to greatest extent in low-power consumption mode, be urgently to solve
Problem certainly.
Content of the invention
Present invention seek to address that one of the problems referred to above.
Present invention is primarily targeted at providing a kind of Saving Power Control Circuit；
A further object of the present invention is to provide a kind of electronic equipment.
For reaching above-mentioned purpose, technical scheme is specifically realized in：
One aspect of the present invention provides a kind of Saving Power Control Circuit, including：LDO, described LDO includes：Power input pin,
Switch pin and power supply output pin, described power input pin connects power supply；Upper surge electric capacity, described upper surge electricity
The first end held connects described power input pin, and the second end connects described switch pin；Normal open switch, described normal open switch
First end connects described power supply；Holding circuit, the first end of described holding circuit connects the second end of described normal open switch, described
Second end of holding circuit connects described switch pin；MCU, described MCU includes：MCU power pins, the first controlling switch,
Two controlling switch；Described MCU power pins connect described power supply output pin；First bleeder circuit, described first bleeder circuit
First end connect described first controlling switch, described first bleeder circuit second end connect described holding circuit first
End；Second bleeder circuit, the first end of described second voltage circuit connects described second controlling switch, described second bleeder circuit
Second end connect described first bleeder circuit first end；Described MCU, in normal mode, detection is described normally opened to open
Close and whether be pressed, if described normal open switch is pressed, enter economize on electricity mould to described first controlling switch output low level
Formula；Wherein, described normal mode is that described MCU exports the pattern of high level to described first controlling switch.
Additionally, described LDO, in described power supply electrifying, starting working；Described MCU, is additionally operable to open in described LDO
After beginning work, enter described normal mode to described first controlling switch output high level.
Additionally, described LDO, in energy-saving mode, after described normal open switch is pressed, starting working；Described MCU,
It is additionally operable to, after described LDO starts working, enter described normal mode to described first controlling switch output high level.
Additionally, described MCU detect described normal open switch whether be pressed including：Described MCU, every prefixed time interval, stops
Only to described first controlling switch output high level, and to described second controlling switch output low level, described first control of detection
Level height at pin processed, if detecting that the level at described first controlling switch is high level, detects described normally opened
Switch is pressed；If detect described first controlling switch at level be low level, detect described normal open switch not by
Press.
Additionally, described second controlling switch is grounded by preventing jittering circuit.
Additionally, described power input pin is grounded by protection circuit.
Additionally, the first end of described normal open switch connects described power supply including：The first end of described normal open switch passes through limit
Current circuit connects described power supply.
Additionally, described power input pin passes through the first capacity earth, described power supply output pin is connect by the second electric capacity
Ground.
Another aspect of the present invention provides a kind of electronic equipment, including above-mentioned Saving Power Control Circuit.
As seen from the above technical solution provided by the invention, by present invention can ensure that carrying the MCU system of LDO
Reduce power consumption in low-power consumption mode to greatest extent so that MCU is zero in idle or when not needing work power consumption.The present invention
Using the enable control function of the switch pin of LDO, the power supply automatically cutting off MCU can be controlled by normal open switch, and normal
Open and restart power supply under switch control rule.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to required use in embodiment description
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
The principle schematic of the Saving Power Control Circuit that Fig. 1 provides for the present invention；
The schematic diagram of the Saving Power Control Circuit that Fig. 2 provides for the present invention.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Inventive embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, broadly falls into protection scope of the present invention.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative
Importance or quantity or position.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Fig. 1 illustrates the principle schematic of Saving Power Control Circuit of the present invention, referring to Fig. 1, the Saving Power Control Circuit of the present invention,
Including：LDO, upper surge electric capacity, normal open switch, holding circuit, the first bleeder circuit, the second bleeder circuit, MCU；Wherein：
LDO includes：Power input pin, switch pin and power supply output pin, power input pin connects power supply；Tool
Body, the power supply that power supply can provide for battery, may be located at the outside of electronic equipment it is also possible to be located at the interior of electronic equipment
Portion；The power supply that this power supply can also provide for the energization pins of USB interface or other interfaces.Can be entirely electricity by power supply
Road powers.Additionally, the supply voltage of this power supply can be 1.8V to 5.5V, can be selected according to the different demands of distinct electronic apparatuses
Select suitable supply voltage；The voltage of the power supply output pin output after LDO can also according to distinct electronic apparatuses not
Export suitable voltage with demand.This LDO is used for, in power supply electrifying, starting working, and MCU provides power supply；In addition, this LDO
It is additionally operable to, in energy-saving mode, after normal open switch is pressed, start working, and provide power supply for MCU.
The first end of upper surge electric capacity connects power input pin, the second end connecting valve pin；Specifically, work as power supply
Input pin switch on power moment obtain power source supplying voltage, on this switch pin from surge electric capacity to LDO export one short
Temporary high level so that LDO starts working, power supply output pin output voltage.
The first end of normal open switch connects power supply；Specifically, normal open switch is normally off-state, is using
When be pressed closure, the switch voluntarily disconnecting after unclamping, for example：Young switch of pot etc..Certainly, the first end of normal open switch is acceptable
Power supply is connected by current-limiting circuit, to ensure the safety and stability of circuit, this current-limiting circuit can be resistance etc..
The first end of holding circuit connects the second end of normal open switch, the second end connecting valve pin of holding circuit；Tool
Body, holding circuit is used in MCU every prefixed time interval, stops exporting high level to the first controlling switch, and to second
During controlling switch output low level, the level at maintained switch pin is high level, to ensure LDO normal work.This holding electricity
Road can be resistance, and resistance is larger, can be the other resistance of M ohm level or the other resistance of hundreds of K ohm level, to protect
Card can be with the level at maintained switch pin.
MCU includes：MCU power pins, the first controlling switch, the second controlling switch；MCU power pins connect power supply output
Pin；Specifically, the power pins of MCU connect the power supply output pin of LDO, to be powered by LDO.First controlling switch
Can be all the I/O pin of MCU with the second controlling switch, in normal mode, MCU exports high level to the first controlling switch,
So that LDO normal work, when needing to enter energy-saving mode, MCU exports low level to the first controlling switch, to close
LDO, stops MCU being powered；MCU, to the second controlling switch output detection level, stops defeated to the first controlling switch simultaneously
Go out high level, to detect whether normal open switch is pressed with the level height that will pass through at detection the first controlling switch.
First bleeder circuit, first end connection first controlling switch of the first bleeder circuit, the second of the first bleeder circuit
End connects the first end of holding circuit；Specifically, the first bleeder circuit can be resistance, to coordinate the second bleeder circuit to complete
The detection whether MCU presses to button.
Second bleeder circuit, first end connection second controlling switch of the second bleeder circuit, the second of the second bleeder circuit
End connects the first end of the first bleeder circuit；Specifically, the second bleeder circuit can be resistance, to coordinate the first bleeder circuit complete
Become the detection whether MCU presses to button.
MCU, in normal mode, whether detection normal open switch is pressed, if normal open switch is pressed, to the
One controlling switch output low level enters energy-saving mode；Wherein, normal mode is that MCU exports high level to the first controlling switch
Pattern.MCU, is additionally operable to, after LDO starts working, export high level to the first controlling switch and enter normal mode.Specifically, exist
After upper surge electric capacity opens LDO work, the power supply output pin of LDO exports MCU required voltage, and now MCU starts working, and
Export high level to the first controlling switch, so that the switch pin of LDO obtains this high level, LDO continuous firing, i.e. MCU
In power supply electrifying, enter normal mode to MCU controlling switch output high level；When electronic equipment needs to enter energy-saving mode
When, user needs to press normal open switch, and now, MCU, every prefixed time interval, stops electricity high to the first controlling switch output
Flat, and export low level to the second controlling switch, the level height at detection the first controlling switch, if detection first controls drawn
Level at pin is high level, then detect that normal open switch is pressed；If the level at detection the first controlling switch is low electricity
Flat, then detect that normal open switch is not pressed；When MCU detects that normal open switch is pressed, then export low to the first controlling switch
Level enters energy-saving mode, and now, the first controlling switch exports low level to the switch pin of LDO, and LDO quits work, and disconnects
To the power supply of MCU, being quit work by this MCU, thus realizing the power-off of electronic equipment, saving electric energy to greatest extent.Certainly, such as
Fruit needs electronic equipment to rework, and again can power to power input pin, for example：Open the switch of battery, weight
The operations such as new insertion USB interface；User can also press normal open switch again, power supply directly passes through normal open switch opening to LDO
Closing pin provides high level, so that LDO starts working, is that MCU powers, and MCU exports high level, dimension to the first controlling switch again
Hold the normal work of LDO.Wherein, prefixed time interval is very short time interval, does not result in LDO and quits work.
Thus, by the Saving Power Control Circuit of the present invention it is ensured that the MCU system with LDO is in low-power consumption mode
Reduce power consumption to greatest extent so that MCU is zero in idle or when not needing work power consumption.The present invention utilizes the switch of LDO
The enable control function of pin, can be controlled the power supply of cut-out MCU, and again open under normal open switch control by normal open switch
Dynamic power supply.
In addition, for the stability improving Saving Power Control Circuit of the present invention further, in the Saving Power Control Circuit of the present invention
In can also include one of current-limiting circuit, preventing jittering circuit, protection circuit or any combination, below only to each circuit
Annexation is briefly described, but the invention is not limited in this：
Second controlling switch is grounded by preventing jittering circuit；
Power input pin is grounded by protection circuit；
The first end of normal open switch connects power supply by current-limiting circuit；
Above current-limiting circuit can include the elements such as resistance, and preventing jittering circuit can include the elements such as electric capacity, protection electricity
Road can include the elements such as resistance and/or electric capacity, but the invention is not limited in said elements, if can realize above-mentioned each
The function of circuit.
Meanwhile, in order to ensure LDO normal work, the power input pin of LDO passes through the first capacity earth, and power supply output is drawn
Pin passes through the second capacity earth.
Hereinafter, the specific implementation of Saving Power Control Circuit of the present invention is provided, but the invention is not limited in this.
Fig. 2 illustrates the schematic diagram of the Saving Power Control Circuit of the present invention, referring to Fig. 2, the Saving Power Control Circuit bag of the present invention
Include：
Power supply connects power input pin Vin of LDO, power supply the 3rd electric capacity C3 in parallel and the (protection of the 6th resistance
Circuit) R6 ground connection, power supply passes through switch pin Ven that the first electric capacity (upper surge electric capacity) C1 connects LDO, and the switch of LDO draws
Pin Ven connects second end of normal open switch KP_C by second resistance (holding circuit) R2, and power supply passes through first resistor (current limliting electricity
Road) R1 connects the first end of normal open switch KP_C, and 3rd resistor (the first bleeder circuit) is passed through at second end of normal open switch KP_C
R3 connects first controlling switch MCU-1 of MCU, and first controlling switch MCU-1 of MCU passes through the 4th resistance (the second bleeder circuit)
R4 connects second controlling switch MCU-2 of MCU, and second controlling switch MCU-2 of MCU passes through the 5th resistance R5 and the 4th of series connection
Electric capacity C4 (preventing jittering circuit) is grounded, and the power supply output pin Vout of LDO passes through the second electric capacity C2 ground connection, the power supply output of LDO
Pin Vout connects power pins MCU-POWER of MCU.
The simple declaration of the operation principle of above-mentioned implementation given below：
Present principles are turned by 5V and illustrate as a example 3.3V LDO power supply circuits：After power end accesses 5V voltage, Shang electricity Chong
Hit electric capacity C1 to the of short duration high level in one, switch pin Ven end of LDO so that Vout end exports 3.3V, MCU now has confession
Electricity, to mono- high level of the first controlling switch MCU-1 so that there is a stable high electricity at switch pin Ven end after opening work
Flat, stably export 3.3V, MCU steady operation after LDO has stable enable high level.
In normal mode, every prefixed time interval, (such as 20ms, this time is not affecting the normally defeated of LDO to MCU
Go out, can be adjusted according to demand), MCU exports low level to the second controlling switch MCU-2 and (for example maintains this low level
1ms, this time is not affecting the normal output of LDO, can be adjusted according to demand), stop to the first controlling switch MCU-1
By detecting the level height of the first controlling switch MCU-1, output high level, detects whether button (normal open switch) is pressed, such as
Fruit button is not pressed, then the level that MCU detects at the first controlling switch MCU-1 is low level, if button is pressed,
The level that so MCU detects at the first controlling switch MCU-1 is high level, detects at the first controlling switch MCU-1 in MCU
Level be high level when, switch to rapidly output low level to the first controlling switch MCU-1, after button lifts, LDO opens
Closing pin Ven end and obtain low level, LDO quits work, thus stopping MCU being powered, entering energy-saving mode.
Restart work if necessary, then push button again, now power supply exports height to switch pin Ven of LDO
Level, LDO powers to MCU, and MCU exports high level to the first controlling switch MCU-1, in order to make system restarts work.
Certainly, if MCU to be allowed restarts work it is also possible to make system again by way of power end re-powers
Start working.
As a result, MCU is zero in idle or when not needing work power consumption, realize low-power consumption to greatest extent.And
The switching of normal mode and energy-saving mode can be controlled by normal open switch.
In addition, the MCU of the present invention can arrange multiple energy-saving modes according to different economize on electricity demands, for example, close part work(
The battery saving modes such as energy, and the energy-saving mode pointed by the present invention is the minimum pattern of power consumption.
In the present invention, " connect " and refer to be directly connected to or be indirectly connected with, it can be straight between element for being directly connected to
Even, being indirectly connected with can be to be indirectly connected with by not affecting other devices of circuit function between element.
Present invention also offers a kind of electronic equipment, this electronic equipment includes the Saving Power Control Circuit of the present invention, to reduce
The power consumption of electronic equipment, saves point energy.This electronic equipment can be the electronic cipher such as USB key, audio frequency KEY, bluetooth KEY, OTP
Equipment, it can possess one or more functions such as electronic signature, data encrypting and deciphering, certificate verification, dynamic password generation.
In flow chart or here any process described otherwise above or method description are construed as, represent and include
The module of the code of executable instruction of one or more steps for realizing specific logical function or process, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by substantially simultaneously in the way of or in the opposite order, carry out perform function, this should be by the present invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realizing.For example, if realized with hardware, and the same in another embodiment, can use well known in the art under
Any one of row technology or their combination are realizing：There is the logic gates for data-signal is realized with logic function
Discrete logic, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part step that above-described embodiment method carries
Suddenly the program that can be by completes come the hardware to instruct correlation, and described program can be stored in a kind of computer-readable storage medium
In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, can be integrated in a processing module in each functional unit in each embodiment of the present invention it is also possible to
It is that unit is individually physically present it is also possible to two or more units are integrated in a module.Above-mentioned integrated mould
Block both can be to be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.Described integrated module is such as
Fruit using in the form of software function module realize and as independent production marketing or use when it is also possible to be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is in the principle without departing from the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.The scope of the present invention
By claims and its equivalent limit.
Claims (24)
1. a kind of Saving Power Control Circuit is it is characterised in that include：
Low pressure difference linear voltage regulator LDO, described LDO includes：Power input pin, switch pin and power supply output pin, institute
State power input pin and connect power supply；
Upper surge electric capacity, the first end of described upper surge electric capacity connects described power input pin, and the second end connects described
Switch pin；
Normal open switch, the first end of described normal open switch connects described power supply；
Holding circuit, for keeping the level at described switch pin；The first end of described holding circuit connects described normally opened open
The second end closed, the second end of described holding circuit connects described switch pin；
Micro-control unit MCU, described MCU includes：MCU power pins, the first controlling switch, the second controlling switch；Described MCU electricity
Source pin connects described power supply output pin；
First bleeder circuit, the first end of described first bleeder circuit connects described first controlling switch, described first partial pressure electricity
Second end on road connects the first end of described holding circuit；
Second bleeder circuit, the first end of described second bleeder circuit connects described second controlling switch, described second partial pressure electricity
Second end on road connects the first end of described first bleeder circuit；
Described MCU, in normal mode, detecting whether described normal open switch is pressed, if described normal open switch is pressed
Under, then enter energy-saving mode to described first controlling switch output low level；Wherein, described normal mode for described MCU to institute
State the pattern that the first controlling switch exports high level.
2. Saving Power Control Circuit according to claim 1 it is characterised in that
Described LDO, in described power supply electrifying, starting working；
Described MCU, is additionally operable to after described LDO starts working, described just to described first controlling switch output high level entrance
Norm formula.
3. Saving Power Control Circuit according to claim 1 and 2 it is characterised in that
Described LDO, in energy-saving mode, after described normal open switch is pressed, starting working；
Described MCU, is additionally operable to after described LDO starts working, described just to described first controlling switch output high level entrance
Norm formula.
4. Saving Power Control Circuit according to claim 1 and 2 is it is characterised in that described MCU detects that described normal open switch is
No be pressed including：
Described MCU, every prefixed time interval, stops to described first controlling switch output high level, and to the described second control
Pin exports low level, detects the level height at described first controlling switch, if detected at described first controlling switch
Level is high level, then detect that described normal open switch is pressed；If detecting that the level at described first controlling switch is low
Level, then detect that described normal open switch is not pressed.
5. Saving Power Control Circuit according to claim 3 is it is characterised in that whether described MCU detects described normal open switch
Be pressed including：
Described MCU, every prefixed time interval, stops to described first controlling switch output high level, and to the described second control
Pin exports low level, detects the level height at described first controlling switch, if detected at described first controlling switch
Level is high level, then detect that described normal open switch is pressed；If detecting that the level at described first controlling switch is low
Level, then detect that described normal open switch is not pressed.
6. according to claim 1,2 or 5 Saving Power Control Circuit it is characterised in that
Described second controlling switch is grounded by preventing jittering circuit.
7. according to claim 3 Saving Power Control Circuit it is characterised in that
Described second controlling switch is grounded by preventing jittering circuit.
8. according to claim 4 Saving Power Control Circuit it is characterised in that
Described second controlling switch is grounded by preventing jittering circuit.
9. according to claim 1,2,5,7 or 8 Saving Power Control Circuit it is characterised in that
Described power input pin is grounded by protection circuit.
10. according to claim 3 Saving Power Control Circuit it is characterised in that
Described power input pin is grounded by protection circuit.
11. according to claim 4 Saving Power Control Circuit it is characterised in that
Described power input pin is grounded by protection circuit.
12. according to claim 6 Saving Power Control Circuit it is characterised in that
Described power input pin is grounded by protection circuit.
13. Saving Power Control Circuits according to any one of claim 1,2,5,7,8,10 to 12 it is characterised in that described often
The first end of switch connects described power supply and includes：
The first end of described normal open switch connects described power supply by current-limiting circuit.
14. Saving Power Control Circuits according to claim 3 are it is characterised in that the first end of described normal open switch connects institute
State power supply to include：
The first end of described normal open switch connects described power supply by current-limiting circuit.
15. Saving Power Control Circuits according to claim 4 are it is characterised in that the first end of described normal open switch connects institute
State power supply to include：
The first end of described normal open switch connects described power supply by current-limiting circuit.
16. Saving Power Control Circuits according to claim 6 are it is characterised in that the first end of described normal open switch connects institute
State power supply to include：
The first end of described normal open switch connects described power supply by current-limiting circuit.
17. Saving Power Control Circuits according to claim 9 are it is characterised in that the first end of described normal open switch connects institute
State power supply to include：
The first end of described normal open switch connects described power supply by current-limiting circuit.
18. Saving Power Control Circuits according to any one of claim 1,2,5,7,8,10 to 12,14 to 17, its feature exists
In,
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
19. Saving Power Control Circuits according to claim 3 it is characterised in that
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
20. Saving Power Control Circuits according to claim 4 it is characterised in that
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
21. Saving Power Control Circuits according to claim 6 it is characterised in that
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
22. Saving Power Control Circuits according to claim 9 it is characterised in that
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
23. Saving Power Control Circuits according to claim 13 it is characterised in that
Described power input pin passes through the first capacity earth, and described power supply output pin passes through the second capacity earth.
24. a kind of electronic equipments are it is characterised in that include the Saving Power Control Circuit as described in any one of claim 1 to 23.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268377.5A CN104049717B (en) | 2014-06-16 | 2014-06-16 | Power saving control circuit and electronic equipment |
| HK15100349.1A HK1199961A1 (en) | 2014-06-16 | 2015-01-13 | Power-saving control circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268377.5A CN104049717B (en) | 2014-06-16 | 2014-06-16 | Power saving control circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN104049717A CN104049717A (en) | 2014-09-17 |
| CN104049717B true CN104049717B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410268377.5A Active CN104049717B (en) | 2014-06-16 | 2014-06-16 | Power saving control circuit and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104049717B (en) |
| HK (1) | HK1199961A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016201688A1 (en) * | 2015-06-19 | 2016-12-22 | 华为技术有限公司 | User equipment |
| CN106293005A (en) * | 2016-08-09 | 2017-01-04 | 成都蓉芯微科技有限公司 | Reduce the system and method for MCU chip stand-by power consumption |
| CN107861599A (en) * | 2017-10-10 | 2018-03-30 | 上海东软载波微电子有限公司 | Power supply control apparatus, method and the microprocessor of MCU operating circuits |
| CN113948331B (en) * | 2021-10-14 | 2023-12-22 | 成都市联洲国际技术有限公司 | Push type switch and communication equipment |
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| CN102854966A (en) * | 2012-08-15 | 2013-01-02 | 天地融科技股份有限公司 | Electronic equipment and power management circuit |
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| US9310794B2 (en) * | 2011-10-27 | 2016-04-12 | Rosemount Inc. | Power supply for industrial process field device |
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| CN102854966A (en) * | 2012-08-15 | 2013-01-02 | 天地融科技股份有限公司 | Electronic equipment and power management circuit |
| CN203603669U (en) * | 2013-10-18 | 2014-05-21 | 广东德昌电机有限公司 | Driving circuit of anti-pinch car window lifter |
| CN203574423U (en) * | 2013-11-30 | 2014-04-30 | 东莞市宏旺电子科技有限公司 | Integration voltage stabilization and low voltage detection power supply chip applied to electronic product |
| CN103808432A (en) * | 2014-03-10 | 2014-05-21 | 成都瑞霆科技有限公司 | Current induction electricity-taking wireless temperature measurement system with unclosed magnetic circuit, and micro-power-consumption communication method |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1199961A1 (en) | 2015-07-24 |
| CN104049717A (en) | 2014-09-17 |
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