CN106026224B - A kind of power control - Google Patents
A kind of power control Download PDFInfo
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- CN106026224B CN106026224B CN201610334647.7A CN201610334647A CN106026224B CN 106026224 B CN106026224 B CN 106026224B CN 201610334647 A CN201610334647 A CN 201610334647A CN 106026224 B CN106026224 B CN 106026224B
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- input
- power supply
- interface
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The embodiment of the invention discloses a kind of power controls, comprising: input detecting circuit, control circuit, switching circuit, discharge circuit；The input detecting circuit has input interface；The input detecting circuit generates corresponding detection signal after its input interface detects effectively input, the detection signal reaches the control circuit through the first input end of the control circuit, the control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or the discharge circuit respectively, the switching circuit is connected, alternatively, the switching circuit is made to disconnect and disconnect after making the discharging circuit conduction.Control circuit is used for the disconnection and conducting of control switch circuit, and stability is higher；In the case where wherein being needed to be reset to load equipment in the case where control circuit control switch circuit disconnects, the thorough electric discharge to load equipment is realized into newly-increased circuit conducting, realizes the active homing to load equipment.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of power control.
Background technique
Mobile communication equipment, product is from factory to sale, it may be necessary to undergo the transportational process of a rapid lapse of time.It is at least several
In week, it is typically necessary several moons, more then 1 years or more.It transports to after destination, until product sells that time, overall time
It can be long.And within the so long time, on surface, equipment is shutdown, is under a kind of super low-power consumption mode in fact,
There is no disconnect completely with power supply.Semiconductor technology has power supply just to have power consumption；If it is smaller not take certain measure that power consumption is dropped
Change, if equipment is absolutely not electric when selling unpacking, cannot not only be experienced at once to user, and discharge with low power loss appearance
Battery over-discharge is easily led to, very big on battery life influence, even resulting in battery cannot recharge.
Currently, the mode for solving the above technical problem is to disconnect the connection between battery and load equipment at the opportunity of closing.
The function is integrated in IC chip, such as: charger (charger) integrated circuit (integrated circuit,
IC) internal.
Using above scheme, just at present using, there are certain error probability, causing power supply to be connected from the point of view of result, in addition bear
The reset function for carrying equipment is poor.
Summary of the invention
The embodiment of the invention provides a kind of power controls, for improving the stability of power supply control, and reset
The validity of load equipment.
The embodiment of the invention provides a kind of power controls, comprising:
Input detecting circuit, control circuit, switching circuit, discharge circuit；
The input detecting circuit has input interface, and the first output end of the input detecting circuit connects the control
The first input end of circuit；
First output end of the control circuit connects the input terminal of the discharge circuit, and the second of the control circuit is defeated
Outlet connects the switching circuit；
One end connection load equipment other end ground connection of the discharge circuit；It is described under the discharging circuit conduction state
Charge on load equipment is released through the discharge circuit；
One end connection load equipment other end of the switching circuit connects battery；In the switching circuit on state
Under, the battery provides electric energy through the switching circuit for the load equipment；
The input detecting circuit generates corresponding detection signal, the inspection after its input interface detects effectively input
It surveys signal and reaches the control circuit through the first input end of the control circuit, the control circuit is according to the detection signal
It generates control signal and is sent to the switching circuit and/or the discharge circuit respectively, the switching circuit is connected, alternatively, making
The switching circuit is disconnected and is disconnected after making the discharging circuit conduction.
In an optional implementation, the input interface of the input detecting circuit includes: power supply adaptor detection
Interface or key detect interface；The input detecting circuit generates corresponding inspection after its input interface detects effectively input
Surveying signal includes:
In the state that the switching circuit is to disconnect, the input detecting circuit detects the power supply adaptor detection
Interface has voltage input or the input detecting circuit to detect in key detection interface for controlling into conducting
The key command of mode, then generate first detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or described respectively
Discharge circuit, makes the switching circuit conducting include:
The control circuit generates first control signal according to the first detection signal and is sent to the switching circuit, makes institute
State switching circuit conducting.
In an optional implementation, the input detecting circuit includes:
Charge integrated circuit and power supply control integrated circuit；
The charge integrated circuit has power adaptor interface and voltage output interface；The integrated electricity of power supply control
There is power supply adaptor to detect interface on road, alternatively, power supply control integrated circuit has power supply adaptor detection interface and presses
Key detects interface；
The power supply adaptor of the voltage output interface of the charge integrated circuit and power supply control integrated circuit detects
Interface connection；
After the power adaptor interface is connected with power supply adaptor, the voltage output interface of the charge integrated circuit
Output voltage reaches the power supply adaptor detection interface of the power supply control integrated circuit, and the power supply control integrated circuit is in institute
After stating power supply adaptor detection interface monitor to the voltage, determination has adapter access.
In an optional implementation, the power supply control integrated circuit is in power supply adaptor detection interface prison
Measuring the voltage includes:
The power supply control integrated circuit includes comparator and first resistor；
The reverse input end of the comparator connects reference voltage, the noninverting input connection described first of the comparator
One end of resistance, the other end of the first resistor connect the power supply adaptor detection interface of the power supply control integrated circuit；
When the power supply adaptor detection interface of the power supply control integrated circuit has voltage, the integrated electricity of power supply control
The voltage of the power supply adaptor detection interface on road reaches the noninverting input of the comparator through the first resistor, makes the ratio
It changes compared with device output signal.
In an optional implementation, the power supply controls integrated circuit further include:
Second resistance, one end of the second resistance is connected to the first resistor and the power supply controls integrated circuit
Power supply adaptor detects between interface, other end ground connection.
In an optional implementation, the power supply controls integrated circuit further include:
Electro-static Driven Comb ESD protective device, one end of the ESD protective device are connected to the first resistor compared with described
Between the noninverting input of device, other end ground connection.
In an optional implementation, the power supply controls integrated circuit further include:
Capacitor；One end of the capacitor is connected to the power adaptation of the first resistor and power supply control integrated circuit
Device detects between interface, other end ground connection.
In an optional implementation, the input interface of the input detecting circuit includes: key detection interface；
The input detecting circuit generates corresponding detection signal after its input interface detects effectively input
The input detecting circuit detects interface to for controlling the key into shutdown mode by the key
Instruction then generates the second detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or described respectively
Discharge circuit, disconnect the switching circuit and make to disconnect after the discharging circuit conduction include:
The control circuit generates second control signal according to the second detection signal and is sent to the switching circuit respectively
With the discharge circuit, the switching circuit is made to disconnect and disconnect after making the discharging circuit conduction.
In an optional implementation, the detection signal includes the pulse signal with height sky ratio；
In an optional implementation, the shown control signal postpones hair after detection signal transmission
Out.
In an optional implementation, the third output end of the control circuit is connected to the load equipment；
Postpone to send third control to the load equipment after the control circuit issues the second control signal
Signal stops working for controlling the load equipment；The second control signal from original levels reach maximum level or
Reaching minimum level has buffer time.
In an optional implementation, the second control signal controls signal level logic phase with the third
Instead.
In an optional implementation, the power control further include: timing circuit；
The second output terminal of the input detecting circuit connects the input terminal of the timing circuit；The timing circuit it is defeated
Outlet connects the second input terminal of the control circuit；
The detection signal enters the timing circuit, the timing electricity through the second output terminal of the input detecting circuit
Road generates the signal arrived for informing the control circuit delay time after the delay time time-out of needs.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that control circuit for control switch
The disconnection and conducting of circuit, stability are higher；Wherein in the case where control circuit control switch circuit disconnects, i.e., load is set
In the case where needing to be reset, the thorough electric discharge to load equipment is realized into newly-increased circuit conducting, is realized to load equipment
Active homing.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is power control of embodiment of the present invention structural schematic diagram；
Fig. 2 is input detecting circuit of embodiment of the present invention structural schematic diagram；
Fig. 3 is power supply adaptor of embodiment of the present invention detection circuit structural schematic diagram；
Fig. 4 is that power supply of the embodiment of the present invention controls integrated electrical block diagram；
Fig. 5 is power control of embodiment of the present invention structural schematic diagram；
Fig. 6 A is power control of embodiment of the present invention structural schematic diagram；
Fig. 6 B is power control of embodiment of the present invention structural schematic diagram；
Fig. 7 is discharge circuit of embodiment of the present invention structural schematic diagram；
Fig. 8 is level signal of embodiment of the present invention schematic diagram；
Fig. 9 is level signal of embodiment of the present invention schematic diagram；
Figure 10 A is level signal of embodiment of the present invention schematic diagram；
Figure 10 B is level signal of embodiment of the present invention schematic diagram；
Figure 11 is mode of embodiment of the present invention flow path switch schematic diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of power controls, as shown in Figure 1, comprising:
Input detecting circuit, control circuit and discharge circuit；Wherein the switching circuit in dotted line frame can be located at power supply
Also it can be used what mobile communication equipment itself carried in control device；
The input detecting circuit has input interface, and the first output end of the input detecting circuit connects the control
The first input end of circuit；
First output end of the control circuit connects the input terminal of the discharge circuit, and the second of the control circuit is defeated
Outlet connects the switching circuit；
One end connection load equipment other end ground connection of the discharge circuit；It is described under the discharging circuit conduction state
Charge on load equipment is released through the discharge circuit；
One end connection load equipment other end of the switching circuit connects battery；In the switching circuit on state
Under, the battery provides electric energy through the switching circuit for the load equipment；
The input detecting circuit generates corresponding detection signal, the inspection after its input interface detects effectively input
It surveys signal and reaches the control circuit through the first input end of the control circuit, the control circuit is according to the detection signal
It generates control signal and is sent to the switching circuit and/or the discharge circuit respectively, the switching circuit is connected, alternatively, making
The switching circuit is disconnected and is disconnected after making the discharging circuit conduction.
In the present embodiment, control circuit is used for the disconnection and conducting of control switch circuit, and stability is higher；Wherein controlling
In the case that circuit controling switch circuit disconnects, i.e., in the case where being needed to be reset to load equipment, newly-increased circuit is connected real
Now to the thorough electric discharge of load equipment, the active homing to load equipment is realized.
Based on a more detailed implementation citing, as shown in Fig. 2, the embodiment of the invention also provides inputs to detect
The physical interface of circuit, and its detection implementation: the input interface of the input detecting circuit includes: power supply adaptor detection
Interface or key detect interface；The input detecting circuit generates corresponding inspection after its input interface detects effectively input
Surveying signal includes:
In the state that the switching circuit is to disconnect, the input detecting circuit detects the power supply adaptor detection
Interface has voltage input or the input detecting circuit to detect in key detection interface for controlling into conducting
The key command of mode, then generate first detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or described respectively
Discharge circuit, makes the switching circuit conducting include:
The control circuit generates first control signal according to the first detection signal and is sent to the switching circuit, makes institute
State switching circuit conducting.
The embodiment of the invention also provides input detecting circuits specifically how to realize the power detecting side of realization in more detail
Case, as shown in figure 3, as follows: the input detecting circuit includes:
Charge integrated circuit IC and power supply control Integrated circuit IC；
The charge integrated circuit has power adaptor interface and voltage output interface；The integrated electricity of power supply control
There is power supply adaptor to detect interface on road, alternatively, power supply control integrated circuit has power supply adaptor detection interface and presses
Key detects interface；
The power supply adaptor of the voltage output interface of the charge integrated circuit and power supply control integrated circuit detects
Interface connection；
After the power adaptor interface is connected with power supply adaptor, the voltage output of the charge integrated circuit is connect
Mouth output voltage reaches the power supply adaptor detection interface of the power supply control integrated circuit, and the power supply control integrated circuit exists
After the power supply adaptor detection interface monitor to the voltage, determination has adapter access.
Subsequent embodiment, which will have, is further described in detail Fig. 3.In Fig. 3, power adaptor interface is power supply
The interface of adapter insertion, power supply adaptor detection interface are the functional interfaces for detecting power supply adaptor insertion, are corresponded to
Voltage output (VOUT) interface of power supply control IC shown in Fig. 3, voltage output interface when which is power supply power supply.
As shown in figure 4, the embodiment of the invention also provides the specific implementations for detecting voltage input inside power supply control IC
Circuit structure, the interface that wherein square region is power supply adaptor detection interface connection charging IC on the right side of Fig. 4: the power supply control
Integrated circuit detects interface monitor to the voltage in the power supply adaptor
The power supply control integrated circuit includes comparator and first resistor R1；
The reverse input end of the comparator connects reference voltage Vref, described in the noninverting input connection of the comparator
One end of first resistor R1, the other end of the first resistor R1 connect the power supply adaptor inspection of the power supply control integrated circuit
Survey interface；
When the power supply adaptor detection interface of the power supply control integrated circuit has voltage, the integrated electricity of power supply control
The voltage of the power supply adaptor detection interface on road reaches the noninverting input of the comparator through the first resistor R1, makes described
Comparator output signal changes.
Subsequent embodiment, which will have, is further described in detail Fig. 4.
Further, as follows: described the embodiment of the invention also provides the technical solution protected to power supply control IC
Power supply controls integrated circuit further include:
Second resistance R2, one end of the second resistance R2 is connected to the first resistor R1 and power supply control is integrated
Between the power supply adaptor detection interface of circuit, other end ground connection.
Further, specific as follows the embodiment of the invention also provides the technical solution of electrostatic protection: the power supply control
Integrated circuit further include:
Electro-static Driven Comb (Electro-Static discharge, ESD) protects device D, one end of the ESD protective device
It is connected between the first resistor R1 and the noninverting input of the comparator, other end ground connection.The ESD protective device is usual
It can be diode.
Further, the embodiment of the invention also provides the technical solutions for filtering miscellaneous signal reduction error detection, specifically such as
Under: the power supply controls integrated circuit further include:
Capacitor C；One end of the capacitor C is connected to the power supply of the first resistor R1 and power supply control integrated circuit
Adapter detects between interface, other end ground connection.
In the embodiment above, input detecting circuit major function is used as connecting the implementation of switching circuit, this hair
Bright embodiment, which is additionally provided, carries out the implementation resetted and switching circuit disconnects by key detection, as follows: the input
The input interface of detection circuit includes: key detection interface；
The input detecting circuit generates corresponding detection signal after its input interface detects effectively input
The input detecting circuit detects interface to for controlling the key into shutdown mode by the key
Instruction then generates the second detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or described respectively
Discharge circuit, disconnect the switching circuit and make to disconnect after the discharging circuit conduction include:
The control circuit generates second control signal according to the second detection signal and is sent to the switching circuit respectively
With the discharge circuit, the switching circuit is made to disconnect and disconnect after making the discharging circuit conduction.
Preferably, in embodiments of the present invention, in order to improve the reliability for controlling signal, the embodiment of the invention provides such as
Lower solution: the detection signal includes the pulse signal with height sky ratio, and the control signal is believed in the detection
Number send after delay issue.
Preferably, in embodiments of the present invention, in order to improve the reliability for controlling signal, the embodiment of the invention provides such as
Lower solution:
The third output end of the control circuit is connected to the load equipment；
Postpone to send third control to the load equipment after the control circuit issues the second control signal
Signal stops working for controlling the load equipment；
The second control signal reaches maximum level or reach minimum level from original levels has buffer time.
Preferably, in embodiments of the present invention, in order to improve the reliability for controlling signal, the embodiment of the invention provides such as
Lower solution: the second control signal is opposite with third control signal level logic.
Preferably, in embodiments of the present invention, in order to improve the reliability for controlling signal, the embodiment of the invention provides
Following solution, as shown in Figure 5: the power control further include: timing circuit；
The second output terminal of the input detecting circuit connects the input terminal of the timing circuit；The timing circuit it is defeated
Outlet connects the second input terminal of the control circuit；
The detection signal enters the timing circuit, the timing electricity through the second output terminal of the input detecting circuit
Road generates the signal arrived for informing the control circuit delay time after the delay time time-out of needs.
It is used as and more specifically illustrates below, a kind of power control provided in an embodiment of the present invention, such as Fig. 6 A and such as
Shown in Fig. 6 B, including following components: timing circuit, input detecting circuit, discharge circuit, control circuit.Wherein, in Fig. 6 A
In Fig. 6 B, switching circuit be may belong within control equipment of the embodiment of the present invention, also may belong to except control equipment；Load
Equipment, the load equipment of power supply.
In the present embodiment, the concrete function of each functional circuit is as follows:
Timing circuit: completing the clocking capability in power control, mainly detects and resets by the key pressing time
Time control etc..It can according to need selection timer.
Input detecting circuit: mainly for detection of power supply adaptor access and the key-press input (input signal) of user.
When equipment is off mode, input detecting circuit can detect power supply adaptor access after power supply adaptor access, need
Detection signal is sent to control circuit to be made equipment exit shutdown mode and enters conduction mode；Key-press input detection, it is main to ring
Output state should be changed by after key pressing and after reaching duration.Company between power supply and load equipment in the shutdown mode
Connecing is to disconnect (switching circuit disconnection), and correspondingly the connection in the conduction mode between power supply and load equipment is conducting
(switching circuit conducting).Connection between load equipment and other circuits mainly may include: that power supply after switching circuit is defeated
Load equipment is arrived out, and in addition load equipment is if there is resetting demand, it may be connected to which the electric discharge of discharge circuit inputs one end.
Discharge circuit: providing the discharge circuit of load equipment, to allow the complete power down of load equipment during power remove,
To realize complete reset function, discharge circuit is controlled by the control signal 1 of control circuit.
Control circuit: according to the detection signal of input detecting circuit input to output signal (including control signal 1~3) into
Row control；Wherein control signal 2 realizes the on and off of power supply for control switch circuit.Control signal 1 is put for controlling
Circuit connection is then turned off；The reset signal that signal 3 is used for load equipment is controlled, load equipment is made to disconnect when progress in power supply
It resets or closes, facilitate the phenomenon that improving shutdown transient load equipment operation irregularity.
The main functional circuit occurred in the embodiment of the present invention is described in detail below:
One, discharge circuit:
Most internal battery is arranged in existing mobile communication, when once inside, domain crashes, need by reset function come
Restarting equipment.Reset function can only be the of short duration disconnection of power supply of battery, at present can't be to the charge on the capacitor of load equipment
It releases.Since resetting time is extremely short, the capacitor self-discharge in load equipment can not discharge into enough within resetting time
The electrical voltage point for resetting load, so that integral reset disabler can be caused.
The equivalent signal of discharge circuit is as shown in Figure 7.
R is that current-limiting resistance plays metering function；S is switch, and the replacement such as transistor, field-effect tube can be used.Wherein, internal
Control is connected to control circuit and receives control signal 1；The interface that discharges is electric discharge input, is connected to the equipment for needing to discharge, such as:
Load equipment.
Two, power supply function (shutdown mode) is disconnected for a long time:
After indicating power cutoff after input detecting circuit is connected to effective order, control circuit sends to switching circuit and controls
Signal 2 disconnects switching circuit, hence into the operating mode, battery and load equipment is allowed to be fully disconnected and be held off mould
Formula.
In the shutdown mode, the power consumption of mobile communication equipment is very low, and electric current can be less than 1uA, can ignore substantially and not remember.
Shutdown mode can be exited after being received again by effective trigger command and enters conduction mode.Shutdown mode is highly suitable for needing
It to store for a long time, the occasion of transporting equipment, can effectively save in storage, battery power while reach protection battery in transit
Purpose.
Three, reliably enter and exit command:
Due to that can cut off the power into shutdown mode, the whole system of load equipment and mobile communication equipment all no longer works
Make.In order to not influence user's normal use and experience, the unlatching requirement of shutdown mode is very reliable, and there can be no false triggerings；And
And can not be exited by false triggering after opening shutdown mode, because original power saving function will be lost after exiting.
Solution provided in an embodiment of the present invention can be, in the instruction into shutdown mode for receiving user's input
Afterwards, it stays certain buffer time, such as equipment to inform the user " will close in the xxx time " before closing power supply, in addition may be used
So that system closedown is more smooth, unexpected power down is avoided to cause adverse effect to system equipment.
Into the detection signal and control signal of shutdown mode, as shown in figure 8, detection signal has the empty ratio of high and low point
Pulse；In fig. 8, T1=2ms, T2=100ms, Ts=15S；It is understood that pulse number and each pulse persistance
Range expressed by time Fig. 8 without being limited thereto, control signal are also possible to logic " low ".
It exits the detection signal of shutdown mode and controls signal hint as follows as shown in figure 9, the significant level of detection signal
It may be logic "high", control signal may be logic " low ", and in addition T3=2S for example might not be used also in the diagram time by office yet
Within 0~16S time).
Four, on/off control function and soft unlatching, soft switching:
After detecting effective key-press input, reaches satisfaction and carry out " power supply disconnection-delay-electricity automatically after a certain period of time
Source is connected " process.
The control signal of control circuit driving switch circuit has soft unlatching, soft turn-off function.
Switching circuit on power path, if can cause very much to overshoot fastly in ON/OFF, recoil, the load of these pulse pairs
System is harmful.Realize that system smoothly powers on and lower electricity with soft switching by soft unlatching.
In Figure 10 A and Figure 10 B, control signal 2 has soft unlatching, soft turn-off function." control output 3 " can for system its
The control signal of its equipment, such as: load equipment.The logic of control signal is not limited to shown in Figure 10 A and Figure 10 B, in Figure 10 A
With T0=2mS in Figure 10 B.
Five, power supply adaptor accesses detection function
In the present embodiment, the self-powered adapter of mobile communication equipment accesses detection function, and has false-touch prevention ability.
As shown in figure 4, when having detected power supply adaptor access, being moved after mobile communication equipment enters " shutdown mode "
Dynamic communication equipment exits " shutdown mode " entrance " conduction mode ".
Shown in equivalent schematic 4, Vref is that power supply controls the reference voltage generated inside IC, and it is reversely defeated to be connected to comparator
Enter end.
Capacitor C and R1 form RC (resistance capacitance) filtering, can filter out the miscellaneous signal of power supply adaptor detection interface, Yi Mianyin
Play error detection；That is: ripple filters.
Resistance R2 and R1 forms bleeder circuit, prevents external input from burning to the overtension of power supply adaptor detection interface
Bad power supply controls IC.
Diode D is that Electro-static Driven Comb (Electro-Static discharge, ESD) protects device, protection power source adaptation
Device detects interface from electrostatic damage.
Circuit structure shown in Fig. 3 will be described in more detail below, power supply controls Integrated circuit IC input (i.e.:
Input voltage VIN) battery is connect, output (that is: voltage output VOUT) pin, VOUT connection charging IC are reached behind inside.Even
Connect power supply adaptor output end.Key pin (Key) is for receiving push button signalling.The embodiment of the present invention controls IC using power supply
VOUT realize power supply adaptor access detection.Specific as follows: when power supply adaptor access, charging IC start-up operation is simultaneously defeated
A default voltage out, while detection battery can be attempted to the VOUT foot power supply to power supply control IC, the inside VOUT energy
Detect the input of a voltage.Due to what is be off between the VIN and VOUT of power supply control IC during this, the voltage of power supply
And the end VOUT can not be injected by inside.So the confirmation end VOUT raised voltage can determine that power supply adaptor at this time
Access.In the present embodiment, VOUT pin has power supply adaptor detection function (that is: voltage input detection function, TA_Det)
In the present embodiment, the VOUT pin inner portions of power supply control IC can do ripple filtering, specific to join to prevent false triggering
It reads shown in Fig. 5.
Power supply controls the VOUT pin connection power path and power supply adaptor detection circuit of IC.There is one on power path
The conducting and shutdown of switching device control VOUT and VIN.In the case where power path conducting, do not need to do power supply adaptor
Detection.Only just need to have known whether power supply adaptor access after power path disconnection.Therefore, the embodiment of the present invention is answered
It is to detect that power supply adaptor is inserted into after power path disconnection with scene, it later can be with turn on automatically power path.
There is no voltage at VOUT pin in the case where there is no power supply adaptor access when power path is disconnected.Work as electricity
After source adapter access, VOUT pin can receive a voltage, and it is defeated in the same direction that this voltage reaches comparator after resistance R1
Enter end, so that the trigger signal for exporting comparator is got higher by low, which just triggers after sending to power supply control IC control circuit
Power path conducting.
In addition, in the electronic circuit as shown in figure 3, charging IC is the circuit for managing charging, therefore in order to guarantee that input is set
Field-effect tube and inductance can be wherein arranged in the stability and controllability of standby voltage, and there are also switch feet in charging IC；Wherein, institute
The grid connection Input voltage terminal of field-effect tube is stated, the drain electrode of the field-effect tube is connected to VOUT；One end of the inductance connects
The source electrode of the field-effect tube is connect, the other end connects the switch foot.
It as shown in figure 11, is the working state figure of mode of embodiment of the present invention conversion, mobile communication equipment is off mould
Under formula, the detection signal of effective push button signalling or power supply adaptor access is received, into conduction mode；Mobile communication is set
It is standby to be under mode, if there is effective push button signalling indicates, shutdown mode or reset mode can be entered；Wherein
Conduction mode can be again introduced into after reset.Wherein led using the on/off realization of control 2 control switch circuit of signal
Switch between logical mode and shutdown mode, controls the on-off of discharge circuit using control signal 1 to control whether to enter and reset mould
Formula can also correspondingly have control signal 3 to be resetted to control external load equipment.
The above is only the preferable specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art the variation that can readily occur in or replaces in the technical scope that the embodiment of the present invention discloses
It changes, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claim
Subject to enclosing.
Claims (14)
1. a kind of power control characterized by comprising
Input detecting circuit, control circuit and discharge circuit；
The input detecting circuit has input interface, and the first output end of the input detecting circuit connects the control circuit
First input end；
First output end of the control circuit connects the input terminal of the discharge circuit, the second output terminal of the control circuit
Connection switch circuit；
One end connection load equipment other end ground connection of the discharge circuit；Under the discharging circuit conduction state, the load
Charge in equipment is released through the discharge circuit；
One end connection load equipment other end of the switching circuit connects battery；Under the switching circuit on state, institute
It states battery and provides electric energy through the switching circuit for the load equipment；
The input detecting circuit generates corresponding detection signal, the detection letter after its input interface detects effectively input
First input end number through the control circuit reaches the control circuit, and the control circuit is generated according to the detection signal
Control signal is sent to the switching circuit and/or the discharge circuit respectively, and the switching circuit is connected, alternatively, making described
Switching circuit is disconnected and is disconnected after making the discharging circuit conduction；
Wherein, the input interface of the input detecting circuit includes: power supply adaptor detection interface or key detection interface；Institute
Input detecting circuit is stated to generate corresponding detection signal after its input interface detects effectively input and include:
In the state that the switching circuit is to disconnect, the input detecting circuit detects the power supply adaptor detection interface
There are voltage input or the input detecting circuit to detect in key detection interface and enters conduction mode for controlling
Key command, then generate first detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or the electric discharge respectively
Circuit, makes the switching circuit conducting include:
The control circuit generates first control signal according to the first detection signal and is sent to the switching circuit, makes described open
Powered-down road conducting；
Wherein, the input detecting circuit includes:
Charge integrated circuit and power supply control integrated circuit；
The charge integrated circuit has power adaptor interface and voltage output interface；The power supply control integrated circuit tool
There is power supply adaptor to detect interface, alternatively, power supply control integrated circuit has power supply adaptor detection interface and key inspection
Survey interface；
The power supply adaptor of the voltage output interface of the charge integrated circuit and power supply control integrated circuit detects interface
Connection；
After the power adaptor interface is connected with power supply adaptor, the voltage output interface of the charge integrated circuit is exported
Voltage reaches the power supply adaptor detection interface of the power supply control integrated circuit, and the power supply control integrated circuit is in the electricity
After source adapter detects interface monitor to the voltage, determination has adapter access.
2. power control according to claim 1, which is characterized in that the power supply control integrated circuit is in the power supply
Adapter detects interface monitor to the voltage
The power supply control integrated circuit includes comparator and first resistor；
The reverse input end of the comparator connects reference voltage, and the noninverting input of the comparator connects the first resistor
One end, the other end of the first resistor connects the power supply adaptor detection interface of power supply control integrated circuit；
When the power supply adaptor detection interface of the power supply control integrated circuit has voltage, the power supply control integrated circuit
The voltage of power supply adaptor detection interface reaches the noninverting input of the comparator through the first resistor, makes the comparator
Output signal changes.
3. power control according to claim 2, which is characterized in that the power supply controls integrated circuit further include:
Second resistance, one end of the second resistance are connected to the power supply of the first resistor and power supply control integrated circuit
Adapter detects between interface, other end ground connection.
4. power control according to claim 2, which is characterized in that the power supply controls integrated circuit further include:
Electro-static Driven Comb ESD protective device, one end of the ESD protective device are connected to the first resistor and the comparator
Between noninverting input, other end ground connection.
5. power control according to claim 2, which is characterized in that the power supply controls integrated circuit further include:
Capacitor；One end of the capacitor is connected to the first resistor and the power supply adaptor of power supply control integrated circuit is examined
It surveys between interface, other end ground connection.
6. power control according to claim 1, which is characterized in that the detection signal includes having height sky ratio
Pulse signal.
7. power control according to claim 6, which is characterized in that the control signal is sent in the detection signal
Delay issues later.
8. a kind of power control characterized by comprising
Input detecting circuit, control circuit and discharge circuit；
The input detecting circuit has input interface, and the first output end of the input detecting circuit connects the control circuit
First input end；
First output end of the control circuit connects the input terminal of the discharge circuit, the second output terminal of the control circuit
Connection switch circuit；
One end connection load equipment other end ground connection of the discharge circuit；Under the discharging circuit conduction state, the load
Charge in equipment is released through the discharge circuit；
One end connection load equipment other end of the switching circuit connects battery；Under the switching circuit on state, institute
It states battery and provides electric energy through the switching circuit for the load equipment；
The input detecting circuit generates corresponding detection signal, the detection letter after its input interface detects effectively input
First input end number through the control circuit reaches the control circuit, and the control circuit is generated according to the detection signal
Control signal is sent to the switching circuit and/or the discharge circuit respectively, and the switching circuit is connected, alternatively, making described
Switching circuit is disconnected and is disconnected after making the discharging circuit conduction；
Wherein, the input interface of the input detecting circuit includes: key detection interface；
The input detecting circuit generates corresponding detection signal after its input interface detects effectively input
The input detecting circuit by the key detect interface arrive for control enter shutdown mode key command,
Then generate the second detection signal；
The control circuit generates control signal according to the detection signal and is sent to the switching circuit and/or the electric discharge respectively
Circuit, disconnect the switching circuit and make to disconnect after the discharging circuit conduction include:
The control circuit generates second control signal according to the second detection signal and is sent to the switching circuit and institute respectively
Discharge circuit is stated, the switching circuit is made to disconnect and disconnect after making the discharging circuit conduction；
Wherein, the third output end of the control circuit is connected to the load equipment；
Postpone to send third control signal to the load equipment after the control circuit issues the second control signal,
It stops working for controlling the load equipment；The second control signal reaches maximum level from original levels or reaches most
Low level has buffer time.
9. power control according to claim 8, which is characterized in that the detection signal includes having height sky ratio
Pulse signal.
10. power control according to claim 9, which is characterized in that the control signal is sent out in the detection signal
Delay issues after sending.
11. power control according to claim 8, which is characterized in that the second control signal and the third control
Signal level logic processed is opposite.
12. according to the power control of claim 8 or 11, which is characterized in that the power control further include: meter
When circuit；
The second output terminal of the input detecting circuit connects the input terminal of the timing circuit；The output end of the timing circuit
Connect the second input terminal of the control circuit；
The detection signal enters the timing circuit through the second output terminal of the input detecting circuit, and the timing circuit exists
The signal arrived for informing the control circuit delay time is generated after the delay time time-out needed.
13. a kind of power control characterized by comprising
Input detecting circuit, control circuit and discharge circuit；
The input detecting circuit has input interface, and the first output end of the input detecting circuit connects the control circuit
First input end；
First output end of the control circuit connects the input terminal of the discharge circuit, the second output terminal of the control circuit
Connection switch circuit；
One end connection load equipment other end ground connection of the discharge circuit；Under the discharging circuit conduction state, the load
Charge in equipment is released through the discharge circuit；
One end connection load equipment other end of the switching circuit connects battery；Under the switching circuit on state, institute
It states battery and provides electric energy through the switching circuit for the load equipment；
The input detecting circuit generates corresponding detection signal, the detection letter after its input interface detects effectively input
First input end number through the control circuit reaches the control circuit, and the control circuit is generated according to the detection signal
Control signal is sent to the switching circuit and/or the discharge circuit respectively, and the switching circuit is connected, alternatively, making described
Switching circuit is disconnected and is disconnected after making the discharging circuit conduction；
Wherein, the detection signal includes the pulse signal with height sky ratio.
14. 3 power control according to claim 1, which is characterized in that the control signal is sent out in the detection signal
Delay issues after sending.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227729.5A CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
| CN201610334647.7A CN106026224B (en) | 2016-05-18 | 2016-05-18 | A kind of power control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334647.7A CN106026224B (en) | 2016-05-18 | 2016-05-18 | A kind of power control |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227729.5A Division CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106026224A CN106026224A (en) | 2016-10-12 |
| CN106026224B true CN106026224B (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334647.7A Expired - Fee Related CN106026224B (en) | 2016-05-18 | 2016-05-18 | A kind of power control |
| CN201910227729.5A Active CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227729.5A Active CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
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| CN (2) | CN106026224B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778702B (en) * | 2017-01-22 | 2023-12-05 | 深圳芯启航科技有限公司 | Fingerprint identification module and device |
| CN114448411A (en) * | 2020-11-02 | 2022-05-06 | 圣邦微电子（北京）股份有限公司 | Key control circuit and method for battery connection or disconnection and related equipment thereof |
| CN113394467B (en) * | 2021-05-07 | 2022-07-22 | 深圳市金研微科技有限公司 | Intelligent battery for mobile terminal equipment |
| CN113394838B (en) * | 2021-05-08 | 2022-04-22 | 荣耀终端有限公司 | Terminal device and charging circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043144A (en) * | 2007-04-06 | 2007-09-26 | 炬力集成电路设计有限公司 | Electrical source managing method of portable electronic products and apparatus thereof |
| 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 |
| CN203705875U (en) * | 2014-02-25 | 2014-07-09 | 青岛歌尔声学科技有限公司 | One-button multifunctional control circuit and wearable electronic product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633709B (en) * | 2013-12-11 | 2015-10-28 | Tcl通讯（宁波）有限公司 | A kind of charging recognition system and recognition methods thereof |
-
2016
- 2016-05-18 CN CN201610334647.7A patent/CN106026224B/en not_active Expired - Fee Related
- 2016-05-18 CN CN201910227729.5A patent/CN109980722B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043144A (en) * | 2007-04-06 | 2007-09-26 | 炬力集成电路设计有限公司 | Electrical source managing method of portable electronic products and apparatus thereof |
| 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 |
| CN203705875U (en) * | 2014-02-25 | 2014-07-09 | 青岛歌尔声学科技有限公司 | One-button multifunctional control circuit and wearable electronic product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109980722A (en) | 2019-07-05 |
| CN109980722B (en) | 2023-03-21 |
| CN106026224A (en) | 2016-10-12 |
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Address after: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20190402 |