CN106026224A - Power control device - Google Patents
Power control device Download PDFInfo
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- CN106026224A CN106026224A CN201610334647.7A CN201610334647A CN106026224A CN 106026224 A CN106026224 A CN 106026224A CN 201610334647 A CN201610334647 A CN 201610334647A CN 106026224 A CN106026224 A CN 106026224A
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- circuit
- power supply
- control
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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
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- 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
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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
- H02J7/0029—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
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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
- H02J7/0063—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
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- 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
An embodiment of the invention discloses a power control device. The power control device includes an input detection circuit, a control circuit, a switch circuit and a discharge circuit. The input detection circuit has an input interface. The input detection circuit generates corresponding detection signals after detecting valid input at the input interface. The detection signals reaches the control circuit via the first input terminal of the control circuit. The control circuit generates control signals according to the detection signals and sends the control signals to the switch circuit and/or the discharge circuit so as to enable the switch circuit to close or to enable the switch circuit to open while the discharge circuit to open after closing. The control circuit is used for controlling the switching of the switch circuit and is high in stability. When the switch circuit is open under the control of the control circuit, namely, when a load device requires resetting, a newly added circuit is closed so as to realize complete discharge of the load device, so that effective reset of the load device is realized.
Description
Technical field
The present invention relates to electronic technology field, particularly to a kind of power control.
Background technology
Mobile communication equipment, product is from sale of dispatching from the factory, it may be necessary to experience the transportation of a rapid lapse of time.In the most several weeks, it is typically necessary several moon, more than 1 year at most.Transporting after destination, until product is sold that time, overall time can be long.And within the so long time, equipment is shutdown on surface, in fact it is under a kind of super low-power consumption pattern, disconnects with power supply the most completely.Semiconductor technology, has power supply just to have power consumption；If not taking certain measure that littleization is dropped in power consumption, if sell unpack time equipment entirely without electricity, experience not only can not to user at once, and discharge with low power loss is easily caused battery and crosses and put, very big on battery life impact, even resulting in battery can not recharge.
At present, the mode solving above technical problem is when the opportunity of closing, and disconnects the connection between battery and load equipment.This function is integrated in IC chip, such as: charger (charger) integrated circuit (integrated circuit, IC) is internal.
Using above scheme, there is certain error probability the most at present, cause power on from the point of view of application result, additionally the reset function of load equipment is poor.
Summary of the invention
Embodiments provide a kind of power control, for improving the stability that power supply controls, and the effectiveness of reset load equipment.
Embodiments provide a kind of power control, including:
Input detecting circuit, control circuit, on-off circuit, discharge circuit；
Described input detecting circuit has input interface, and the first outfan of described input detecting circuit connects the first input end of described control circuit；
First outfan of described control circuit connects the input of described discharge circuit, and the second outfan of described control circuit connects described on-off circuit；
One end of described discharge circuit connects load equipment other end ground connection；Under described discharging circuit conduction state, the electric charge on described load equipment is released through described discharge circuit；
One end of described on-off circuit connects the load equipment other end and connects battery；Under described on-off circuit conducting state, described battery provides electric energy through described on-off circuit for described load equipment；
Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input, described detection signal arrives described control circuit through the first input end of described control circuit, described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, described on-off circuit is made to turn on, or, disconnect after making described on-off circuit disconnect and making described discharging circuit conduction.
In an optional implementation, the input interface of described input detecting circuit includes: power supply adaptor detection interface or button detection interface；Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input and includes:
When described on-off circuit is to disconnect, described input detecting circuit detects that described power supply adaptor detection interface has voltage input or described input detecting circuit the key command for controlling to enter conduction mode to be detected at described button detection interface, then generate the first detection signal；
Described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, makes the conducting of described on-off circuit include:
Described control circuit generates the first control signal according to described first detection signal and mails to described on-off circuit, makes described on-off circuit turn on.
In an optional implementation, described input detecting circuit includes:
Charge integrated circuit and power supply control integrated circuit；
Described charge integrated circuit has power adaptor interface and voltage output interface；Described power supply controls integrated circuit and has power supply adaptor detection interface, or, described power supply controls integrated circuit and has power supply adaptor detection interface and button detection interface；
The voltage output interface of described charge integrated circuit controls the power supply adaptor detection interface of integrated circuit and is connected with described power supply；
After described power adaptor interface connects and has power supply adaptor, the voltage output interface output voltage of described charge integrated circuit arrives described power supply and controls the power supply adaptor detection interface of integrated circuit, described power supply control integrated circuit, after described power supply adaptor detection interface monitor to described voltage, determines and has adapter to access.
In an optional implementation, described power supply controls integrated circuit and includes to described voltage at described power supply adaptor detection interface monitor:
Described power supply controls integrated circuit and comprises comparator and the first resistance；
The reverse input end of described comparator connects reference voltage, and the input in the same direction of described comparator connects one end of described first resistance, and the other end of described first resistance connects described power supply and controls the power supply adaptor detection interface of integrated circuit；
When the power supply adaptor detection interface of described power supply control integrated circuit has voltage, the voltage of the power supply adaptor detection interface that described power supply controls integrated circuit arrives the input in the same direction of described comparator through described first resistance, makes described comparator output signal change.
In an optional implementation, described power supply controls integrated circuit and also includes:
Second resistance, one end of described second resistance is connected between the power supply adaptor detection interface of described first resistance and described power supply control integrated circuit, other end ground connection.
In an optional implementation, described power supply controls integrated circuit and also includes:
Electro-static Driven Comb ESD protective device, one end of described ESD protective device is connected between described first resistance and the input in the same direction of described comparator, other end ground connection.
In an optional implementation, described power supply controls integrated circuit and also includes:
Electric capacity；One end of described electric capacity is connected between the power supply adaptor detection interface of described first resistance and described power supply control integrated circuit, other end ground connection.
In an optional implementation, the input interface of described input detecting circuit includes: button detection interface；
Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input and includes:
Described input detecting circuit to for controlling to enter the key command of shutdown mode, then generates the second detection signal by described button detection interface；
Described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, makes described on-off circuit disconnect after disconnecting and making described discharging circuit conduction and includes:
Described control circuit generates the second control signal according to described second detection signal and mails to described on-off circuit and described discharge circuit respectively, disconnects after making described on-off circuit disconnect and making described discharging circuit conduction.
In an optional implementation, described detection signal includes the pulse signal with height sky ratio；
In an optional implementation, shown described control signal postpones to send after described detection signal sends.
In an optional implementation, the 3rd outfan of described control circuit is connected to described load equipment；
Postpone to send the 3rd control signal to described load equipment after described control circuit sends described second control signal, be used for controlling described load equipment and quit work；Described second control signal arrives maximum level from original levels or arrival minimum level has buffer time.
In an optional implementation, described second control signal is contrary with described 3rd control signal level logic.
In an optional implementation, described power control also includes: timing circuit；
Second outfan of described input detecting circuit connects the input of described timing circuit；The outfan of described timing circuit connects the second input of described control circuit；
Described detection signal enters described timing circuit through the second outfan of described input detecting circuit, and described timing circuit generated for informing the signal that described control circuit delay time has arrived after time-out in the time delay needed.
As can be seen from the above technical solutions, the embodiment of the present invention have the advantage that control circuit for controlling disconnection and the conducting of on-off circuit, stability is higher；Wherein in the case of control circuit controls on-off circuit disconnection, in the case of i.e. needing to reset to load equipment, realize newly-increased circuit turn-on the thorough of load equipment is discharged, it is achieved the active homing to load equipment.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly introduced, apparently, accompanying drawing in describing below is only some embodiments of the present invention, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is embodiment of the present invention power control structural representation；
Fig. 2 is embodiment of the present invention input detecting circuit structural representation；
Fig. 3 is embodiment of the present invention power supply adaptor testing circuit structural representation；
Fig. 4 is that embodiment of the present invention power supply controls integrated electrical block diagram；
Fig. 5 is embodiment of the present invention power control structural representation；
Fig. 6 A is embodiment of the present invention power control structural representation；
Fig. 6 B is embodiment of the present invention power control structural representation；
Fig. 7 is embodiment of the present invention discharge circuit structural representation；
Fig. 8 is embodiment of the present invention level signal schematic diagram；
Fig. 9 is embodiment of the present invention level signal schematic diagram；
Figure 10 A is embodiment of the present invention level signal schematic diagram；
Figure 10 B is embodiment of the present invention level signal schematic diagram；
Figure 11 is embodiment of the present invention patten transformation schematic flow sheet.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, it is clear that described embodiment is only some embodiments of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiments provide a kind of power control, as it is shown in figure 1, include:
Input detecting circuit, control circuit and discharge circuit；Wherein the on-off circuit in dotted line frame can also use mobile communication equipment itself to carry in may be located at power control；
Described input detecting circuit has input interface, and the first outfan of described input detecting circuit connects the first input end of described control circuit；
First outfan of described control circuit connects the input of described discharge circuit, and the second outfan of described control circuit connects described on-off circuit；
One end of described discharge circuit connects load equipment other end ground connection；Under described discharging circuit conduction state, the electric charge on described load equipment is released through described discharge circuit；
One end of described on-off circuit connects the load equipment other end and connects battery；Under described on-off circuit conducting state, described battery provides electric energy through described on-off circuit for described load equipment；
Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input, described detection signal arrives described control circuit through the first input end of described control circuit, described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, described on-off circuit is made to turn on, or, disconnect after making described on-off circuit disconnect and making described discharging circuit conduction.
In the present embodiment, control circuit is for controlling disconnection and the conducting of on-off circuit, and stability is higher；Wherein in the case of control circuit controls on-off circuit disconnection, in the case of i.e. needing to reset to load equipment, realize newly-increased circuit turn-on the thorough of load equipment is discharged, it is achieved the active homing to load equipment.
Based on a more detailed implementation citing, as shown in Figure 2, the embodiment of the present invention additionally provides the physical interface of input detecting circuit, and detection implementation: the input interface of described input detecting circuit includes: power supply adaptor detection interface or button detection interface；Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input and includes:
When described on-off circuit is to disconnect, described input detecting circuit detects that described power supply adaptor detection interface has voltage input or described input detecting circuit the key command for controlling to enter conduction mode to be detected at described button detection interface, then generate the first detection signal；
Described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, makes the conducting of described on-off circuit include:
Described control circuit generates the first control signal according to described first detection signal and mails to described on-off circuit, makes described on-off circuit turn on.
The embodiment of the present invention additionally provides the most how input detecting circuit realizes the more detailed implementation of power detecting, as it is shown on figure 3, as follows: described input detecting circuit includes:
Charge integrated circuit IC and power supply control IC；
Described charge integrated circuit has power adaptor interface and voltage output interface；Described power supply controls integrated circuit and has power supply adaptor detection interface, or, described power supply controls integrated circuit and has power supply adaptor detection interface and button detection interface；
The voltage output interface of described charge integrated circuit controls the power supply adaptor detection interface of integrated circuit and is connected with described power supply；
After described power adaptor interface connects and has power supply adaptor, the voltage output interface output voltage of described charge integrated circuit arrives described power supply and controls the power supply adaptor detection interface of integrated circuit, described power supply control integrated circuit, after described power supply adaptor detection interface monitor to described voltage, determines and has adapter to access.
Subsequent embodiment will have and further describe Fig. 3 in detail.In figure 3, power adaptor interface is the interface that power supply adaptor inserts, power supply adaptor detection interface is for detecting the functional interface that power supply adaptor inserts, corresponding to power supply shown in Fig. 3 and control voltage output (VOUT) interface of IC, this VOUT interface is power supply voltage output interface when powering.
As shown in Figure 4, the embodiment of the present invention additionally provides and implements circuit structure what power supply controlled to detect inside IC voltage input, and wherein on the right side of Fig. 4, square region is the interface that power supply adaptor detection interface connects charging IC: described power supply controls integrated circuit and includes to described voltage at described power supply adaptor detection interface monitor:
Described power supply controls integrated circuit and comprises comparator and the first resistance R1；
The reverse input end of described comparator connects reference voltage Vref, and the input in the same direction of described comparator connects one end of described first resistance R1, and the other end of described first resistance R1 connects described power supply and controls the power supply adaptor detection interface of integrated circuit；
When the power supply adaptor detection interface of described power supply control integrated circuit has voltage, the input in the same direction that the voltage of the power supply adaptor detection interface that described power supply controls integrated circuit arrives described comparator through described first resistance R1, makes described comparator output signal change.
Subsequent embodiment will have and further describe Fig. 4 in detail.
Further, the embodiment of the present invention additionally provides and power supply is controlled the technical scheme that IC protects, as follows: described power supply controls integrated circuit and also includes:
Second resistance R2, one end of described second resistance R2 is connected between the power supply adaptor detection interface of described first resistance R1 and described power supply control integrated circuit, other end ground connection.
Further, the embodiment of the present invention additionally provides the technical scheme of electrostatic protection, specific as follows: described power supply controls integrated circuit and also includes:
Electro-static Driven Comb (Electro-Static discharge, ESD) protection device D, one end of described ESD protective device is connected between described first resistance R1 and the input in the same direction of described comparator, other end ground connection.This ESD protective device typically diode.
Further, the embodiment of the present invention additionally provides the technical scheme filtering miscellaneous signal minimizing error detection, specific as follows: described power supply controls integrated circuit and also includes:
Electric capacity C；One end of described electric capacity C is connected between the power supply adaptor detection interface of described first resistance R1 and described power supply control integrated circuit, other end ground connection.
In the embodiment above, input detecting circuit major function is used as the implementation of ON switch circuit, the embodiment of the present invention additionally provides and carries out resetting and the implementation of on-off circuit disconnection by button detection, as follows: the input interface of described input detecting circuit includes: button detection interface；
Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input and includes:
Described input detecting circuit to for controlling to enter the key command of shutdown mode, then generates the second detection signal by described button detection interface；
Described control circuit generates control signal according to described detection signal and mails to described on-off circuit and/or described discharge circuit respectively, makes described on-off circuit disconnect after disconnecting and making described discharging circuit conduction and includes:
Described control circuit generates the second control signal according to described second detection signal and mails to described on-off circuit and described discharge circuit respectively, disconnects after making described on-off circuit disconnect and making described discharging circuit conduction.
Preferably, in embodiments of the present invention, in order to improve the reliability of control signal, embodiments providing following solution: described detection signal includes the pulse signal with height sky ratio, described control signal postpones to send after described detection signal sends.
Preferably, in embodiments of the present invention, in order to improve the reliability of control signal, following solution is embodiments provided:
3rd outfan of described control circuit is connected to described load equipment；
Postpone to send the 3rd control signal to described load equipment after described control circuit sends described second control signal, be used for controlling described load equipment and quit work；
Described second control signal arrives maximum level from original levels or arrival minimum level has buffer time.
Preferably, in embodiments of the present invention, in order to improve the reliability of control signal, following solution is embodiments provided: described second control signal is contrary with described 3rd control signal level logic.
Preferably, in embodiments of the present invention, in order to improve the reliability of control signal, following solution is embodiments provided, as shown in Figure 5: described power control also includes: timing circuit；
Second outfan of described input detecting circuit connects the input of described timing circuit；The outfan of described timing circuit connects the second input of described control circuit；
Described detection signal enters described timing circuit through the second outfan of described input detecting circuit, and described timing circuit generated for informing the signal that described control circuit delay time has arrived after time-out in the time delay needed.
Following conduct is more specifically illustrated, a kind of power control that the embodiment of the present invention provides, such as Fig. 6 A and as shown in Figure 6B, including following components: timing circuit, input detecting circuit, discharge circuit, control circuit.Wherein, in Fig. 6 A and Fig. 6 B, within on-off circuit may belong to embodiment of the present invention control equipment, it is also possible to belong to outside 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: complete the clocking capability in power control, mainly button and press time detecting and control resetting time etc..Intervalometer can be selected as required.
Input detecting circuit: access and the key-press input (input signal) of user mainly for detection of power supply adaptor.When equipment is off pattern, after power supply adaptor accesses, input detecting circuit can detect that power supply adaptor accesses, and needs to send detection signal to control circuit and makes equipment exit shutdown mode and enter conduction mode；Key-press input detects, and changes output state after pressing primarily responsive to button and after reaching duration.(the on-off circuit disconnection) that connection between power supply and load equipment is off in the shutdown mode, the connection between power supply and load equipment is conducting (on-off circuit conducting) the most in the conduction mode.Connection between load equipment and other circuit, mainly may include that the power supply after on-off circuit exports load equipment, if additionally load equipment has reset demand, it may be connected to the electric discharge of discharge circuit inputs one end.
Discharge circuit: providing the discharge circuit of load equipment, in order to allow the complete power down of load equipment during power remove, thus realize complete reset function, discharge circuit is controlled by the control signal 1 of control circuit.
Control circuit: output signal (including control signal 1～3) is controlled according to the detection signal of input detecting circuit input；Wherein control signal 2 realizes the on and off of power supply for controlling on-off circuit.Control signal 1 is used for controlling discharge circuit connection and is then turned off；Control signal 3, for the reset signal of load equipment, makes load equipment carry out when power supply disconnects resetting or closing, contributes to improving the phenomenon of shutdown transient load equipment operation irregularity.
Hereinafter the main functional circuit occurred in the embodiment of the present invention is described in detail:
One, discharge circuit:
Existing mobile communication arranges most internal battery, occurs crashing once in-house network territory, needs to carry out restarting equipment by reset function.Electric charge on the electric capacity of load equipment can only can't be released of short duration for the power supply of battery disconnection by reset function at present.Owing to resetting time is extremely short, the electric capacity self-discharge in load equipment cannot discharge into the electrical voltage point enough making load reset within resetting time, thus can cause integral reset disabler.
Discharge circuit equivalence is illustrated as shown in Figure 7.
R is that current-limiting resistance plays metering function；S is switch, it is possible to use transistor, field effect transistor etc. replace.Wherein, internal control is connected to control circuit and receives control signal 1；Electric discharge interface is electric discharge input, is connected to need the equipment of electric discharge, such as: load equipment.
Two, long-term deenergization function (shutdown mode):
After indicating power cutoff after input detecting circuit receives effective order, control circuit sends control signal 2 to on-off circuit makes on-off circuit disconnect, and hence into this mode of operation, allows battery and load equipment be fully disconnected and to be held off pattern.
In the shutdown mode, the power consumption of mobile communication equipment is the lowest, and electric current can be less than 1uA, substantially can ignore and not remember.Shutdown mode can be exited after being received again by effective trigger command and enter conduction mode.Shutdown mode is highly suitable for needing storing for a long time, the occasion of transporting equipment, can effectively save the purpose simultaneously reaching to protect battery in storage, in transit battery power.
Three, enter reliably and exit command:
Can cut off the electricity supply owing to entering shutdown mode, the whole system of load equipment and mobile communication equipment the most no longer works.Normally using to not affect user and experience, the unlatching of shutdown mode requires the most reliable, it is impossible to false triggering occur；And, can not be exited by false triggering, because original power saving function will be lost after exiting after opening shutdown mode.
The solution that the embodiment of the present invention provides can be, after the instruction entering shutdown mode receiving user's input, certain buffer time is stayed before closing power supply, " " etc. in the xxx time, will be closed as equipment informs the user, system closedown additionally can also be made more smooth and easy, it is to avoid system equipment is had undesirable effect by power down suddenly.
Entering detection signal and the control signal of shutdown mode, as shown in Figure 8, detection signal has the pulse of high and low empty ratio；In fig. 8, T1=2ms, T2=100ms, Ts=15S；It is understood that pulse number and each pulse duration are not limited to the scope expressed by this Fig. 8, control signal can also be logic " low ".
Exit the detection signal of shutdown mode and control signal the most as shown in Figure 9, the significant level of detection signal can also be logic " high ", control signal can also be logic " low ", and additionally T3=2S the most not office is in time shown, the most also can be within 0～16S time).
Four, on/off control function and soft unlatching, soft switching:
After effective key-press input being detected, after reaching to meet certain time, automatically carry out " power supply disconnection-time delay-power on " flow process.
Control circuit drives the control signal of on-off circuit, has soft unlatching, soft turn-off function.
On-off circuit on power path, if can cause punching the soonest when ON/OFF, recoil, these pulses are harmful to load system.Realized by soft unlatching and soft switching that system is smooth to power on and lower electricity.
In Figure 10 A and Figure 10 B, control signal 2 is with soft unlatching, soft turn-off function." control output 3 " can be the control signal of system miscellaneous equipment, such as: load equipment.The logic of control signal is not limited to shown in Figure 10 A and Figure 10 B, T0=2mS in Figure 10 A and 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 possesses false-touch prevention ability.
As shown in Figure 4, mobile communication equipment enter " shutdown mode " after, when having detected that power supply adaptor accesses, mobile communication equipment exits " shutdown mode " enter " conduction mode ".
Shown in equivalent schematic 4, Vref is that power supply controls the internal reference voltage produced of IC, is connected to comparator reverse input end.
Electric capacity C and R1 composition RC (resistance capacitance) filtering, can leach the miscellaneous signal of power supply adaptor detection interface, in order to avoid causing error detection；That is: ripple filters.
Resistance R2 Yu R1 forms bleeder circuit, prevents outside to be input to the overtension of power supply adaptor detection interface and burn out power supply and control IC.
Diode D is that Electro-static Driven Comb (Electro-Static discharge, ESD) protects device, and protection power supply adaptor detection interface is from electrostatic damage.
Hereinafter circuit structure shown in Fig. 3 will be described in more detail, power supply controls IC input (that is: input voltage VIN) and connects battery, arriving output (that is: voltage output VOUT) pin behind inside, VOUT connects charging IC.Connect power supply adaptor outfan.Button pin (Key) is used for receiving push button signalling.The embodiment of the present invention, the VOUT utilizing power supply to control IC realizes the access detection of power supply adaptor.Specific as follows: when power supply adaptor accesses, charging IC starts working and exports a default voltage, can attempt to detect battery simultaneously thus power to the VOUT foot of power supply control IC, the internal input that a voltage just can be detected of VOUT.Owing to during this, power supply controls to be off between VIN and VOUT of IC, the voltage of power supply also can not be injected into VOUT end by inside.So now confirming that VOUT end raised voltage i.e. can determine that power supply adaptor has accessed.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 filtration, to prevent false triggering, referring particularly to shown in Fig. 5.
Power supply controls the VOUT pin of IC and connects power path and power supply adaptor testing circuit.A switching device is had to control conducting and the shutoff of VOUT Yu VIN on power path.In the case of power path turns on, it is not necessary to do the detection of power supply adaptor.Only just it is to be appreciated that whether there is power supply adaptor to access after power path disconnects.Therefore, the application scenarios of the embodiment of the present invention is to detect that power supply adaptor inserts after power path disconnects, afterwards can be with turn on automatically power path.
When power path disconnects, in the case of not having power supply adaptor to access, there is no voltage at VOUT pin.After power supply adaptor accesses, VOUT pin can receive a voltage, this voltage arrives comparator input in the same direction after resistance R1, so that the triggering signal of comparator output is uprised by low, this signal is delivered to just trigger power path conducting after power supply controls IC control circuit.
It addition, in the electronic circuit as shown in figure 3, charging IC is the circuit for managing charging, therefore to ensure that the stability of the voltage of input equipment and controllability wherein can arrange field effect transistor and inductance, also switchs foot in charging IC；Wherein, the grid of described field effect transistor connects Input voltage terminal, and the drain electrode of described field effect transistor is connected to VOUT；One end of described inductance connects the source electrode of described field effect transistor, and the other end connects described switch foot.
As shown in figure 11, it is the working state figure of embodiment of the present invention patten transformation, mobile communication equipment, it is off under pattern, receives effective push button signalling or the detection signal of power supply adaptor access, enter conduction mode；Mobile communication equipment is under pattern, if there being effective push button signalling to indicate, can enter shutdown mode, or reset mode；Wherein reset and can be again introduced into conduction mode after terminating.The on/off wherein using control signal 2 to control on-off circuit realizes switching between conduction mode and shutdown mode, the break-make using control signal 1 to control discharge circuit controls whether to enter reset mode, and the load equipment that control signal 3 correspondingly can also be had to control outside resets.
These are only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art in the technical scope that the embodiment of the present invention discloses, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (13)
1. a power control, it is characterised in that including:
Input detecting circuit, control circuit and discharge circuit；
Described input detecting circuit has input interface, and the first outfan of described input detecting circuit connects
The first input end of described control circuit；
First outfan of described control circuit connects the input of described discharge circuit, described control circuit
The second outfan connecting valve circuit；
One end of described discharge circuit connects load equipment other end ground connection；Described discharging circuit conduction state
Under, the electric charge on described load equipment is released through described discharge circuit；
One end of described on-off circuit connects the load equipment other end and connects battery；Lead at described on-off circuit
Under logical state, described battery provides electric energy through described on-off circuit for described load equipment；
Described input detecting circuit generates the detection letter of correspondence after its input interface detects effectively input
Number, described detection signal arrives described control circuit, described control through the first input end of described control circuit
Circuit processed generates control signal according to described detection signal and mails to described on-off circuit and/or described electric discharge respectively
Circuit, makes described on-off circuit turn on, or, make described on-off circuit disconnect and make described electric discharge electricity
Disconnect after the conducting of road.
Power control the most according to claim 1, it is characterised in that described input detecting circuit
Input interface include: power supply adaptor detection interface or button detection interface；Described input detection electricity
Lu Qi input interface generates the detection signal of correspondence and includes after effectively input being detected:
When described on-off circuit is to disconnect, described input detecting circuit detects that described power supply is fitted
Orchestration detection interface has voltage input or described input detecting circuit to detect at described button detection interface
There is the key command for controlling to enter conduction mode, then generate the first detection signal；
Described control circuit according to described detection signal generate control signal mail to respectively described on-off circuit and/
Or described discharge circuit, make the conducting of described on-off circuit include:
Described control circuit generates the first control signal according to described first detection signal and mails to described switch electricity
Road, makes described on-off circuit turn on.
Power control the most according to claim 2, it is characterised in that described input detecting circuit
Including:
Charge integrated circuit and power supply control integrated circuit；
Described charge integrated circuit has power adaptor interface and voltage output interface；Described power supply control
Integrated circuit processed has power supply adaptor detection interface, or, described power supply controls integrated circuit and has electricity
Source adapter detection interface and button detection interface；
The voltage output interface of described charge integrated circuit controls the power adaptation of integrated circuit with described power supply
Device detection interface connects；
After described power adaptor interface connects and has power supply adaptor, the voltage of described charge integrated circuit
Output interface output voltage arrives described power supply and controls the power supply adaptor detection interface of integrated circuit, described
Power supply controls integrated circuit at described power supply adaptor detection interface monitor to after described voltage, determine have suitable
Orchestration accesses.
Power supply adaptor detection device the most according to claim 3, it is characterised in that described power supply control
Integrated circuit processed includes to described voltage at described power supply adaptor detection interface monitor:
Described power supply controls integrated circuit and comprises comparator and the first resistance；
The reverse input end of described comparator connects reference voltage, and the input in the same direction of described comparator connects
One end of described first resistance, the other end of described first resistance connects described power supply and controls integrated circuit
Power supply adaptor detection interface；
When the power supply adaptor detection interface of described power supply control integrated circuit has voltage, described power supply control
The voltage of the power supply adaptor detection interface of integrated circuit processed arrives described comparator through described first resistance
Input in the same direction, makes described comparator output signal change.
Power supply adaptor detection device the most according to claim 4, it is characterised in that described power supply control
Integrated circuit processed also includes:
Second resistance, one end of described second resistance is connected to described first resistance and described power supply domination set
Become between the power supply adaptor detection interface of circuit, other end ground connection.
Power supply adaptor detection device the most according to claim 4, it is characterised in that described power supply control
Integrated circuit processed also includes:
Electro-static Driven Comb ESD protective device, one end of described ESD protective device is connected to described first resistance
And between the input in the same direction of described comparator, other end ground connection.
Power supply adaptor detection device the most according to claim 4, it is characterised in that described power supply control
Integrated circuit processed also includes:
Electric capacity；One end of described electric capacity is connected to described first resistance and controls integrated circuit with described power supply
Between power supply adaptor detection interface, other end ground connection.
Power control the most according to claim 1, it is characterised in that described input detecting circuit
Input interface include: button detection interface；
Described input detecting circuit generates the detection signal of correspondence after its input interface detects effectively input
Including:
Described input detecting circuit by described button detection interface to being used for controlling entrance shutdown mode
Key command, then generate second detection signal；
Described control circuit according to described detection signal generate control signal mail to respectively described on-off circuit and/
Or described discharge circuit, make described on-off circuit disconnect after disconnecting and making described discharging circuit conduction and include:
Described control circuit according to described second detection signal generate the second control signal mail to respectively described in open
Close circuit and described discharge circuit, disconnected after making described on-off circuit disconnect and making described discharging circuit conduction
Open.
Power control the most according to claim 1, it is characterised in that described detection signal includes
There is the pulse signal of height sky ratio.
Power control the most according to claim 9, it is characterised in that shown described control is believed
Number described detection signal send after postpone to send.
11. power controls according to claim 8, it is characterised in that described control circuit
3rd outfan is connected to described load equipment；
Postpone to send the to described load equipment after described control circuit sends described second control signal
Three control signals, are used for controlling described load equipment and quit work；Described second control signal is from initial electricity
Flat arrival maximum level or arrival minimum level have buffer time.
12. according to power control described in claim 11, it is characterised in that described second controls letter
Number contrary with described 3rd control signal level logic.
13. according to power control described in claim 11 or 12, it is characterised in that described power supply
Control device also to include: timing circuit；
Second outfan of described input detecting circuit connects the input of described timing circuit；Described timing
The outfan of circuit connects the second input of described control circuit；
Described detection signal enters described timing circuit, institute through the second outfan of described input detecting circuit
State timing circuit to generate after time-out for having informed described control circuit delay time in the time delay needed
The signal arrived.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334647.7A CN106026224B (en) | 2016-05-18 | 2016-05-18 | A kind of power control |
| CN201910227729.5A CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
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 |
Related Child Applications (1)
| 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 |
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| CN106026224A true CN106026224A (en) | 2016-10-12 |
| CN106026224B CN106026224B (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227729.5A Active CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
| CN201610334647.7A Expired - Fee Related CN106026224B (en) | 2016-05-18 | 2016-05-18 | A kind of power control |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910227729.5A Active CN109980722B (en) | 2016-05-18 | 2016-05-18 | Power supply control device |
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| Country | Link |
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| CN (2) | CN109980722B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106778702A (en) * | 2017-01-22 | 2017-05-31 | 深圳芯启航科技有限公司 | Fingerprint recognition module and device |
| CN113394838A (en) * | 2021-05-08 | 2021-09-14 | 荣耀终端有限公司 | Terminal device and charging circuit |
| CN113394467A (en) * | 2021-05-07 | 2021-09-14 | 深圳市金研微科技有限公司 | Intelligent battery for mobile terminal equipment |
| 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 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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- 2016-05-18 CN CN201910227729.5A patent/CN109980722B/en active Active
- 2016-05-18 CN CN201610334647.7A patent/CN106026224B/en not_active Expired - Fee Related
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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106778702A (en) * | 2017-01-22 | 2017-05-31 | 深圳芯启航科技有限公司 | Fingerprint recognition module and device |
| 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 |
| CN113394467A (en) * | 2021-05-07 | 2021-09-14 | 深圳市金研微科技有限公司 | Intelligent battery for mobile terminal equipment |
| CN113394838A (en) * | 2021-05-08 | 2021-09-14 | 荣耀终端有限公司 | Terminal device and charging circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106026224B (en) | 2019-04-02 |
| CN109980722B (en) | 2023-03-21 |
| CN109980722A (en) | 2019-07-05 |
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