CN106685016A - Charging device and control method - Google Patents
Charging device and control method Download PDFInfo
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- CN106685016A CN106685016A CN201710159749.4A CN201710159749A CN106685016A CN 106685016 A CN106685016 A CN 106685016A CN 201710159749 A CN201710159749 A CN 201710159749A CN 106685016 A CN106685016 A CN 106685016A
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- 238000007600 charging Methods 0.000 title claims abstract description 230
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005611 electricity Effects 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 20
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010278 pulse charging Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 11
- 238000003860 storage Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- H02J7/0086—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charging device and a control method. The charging device comprises a second charging interface, a voltage modulation circuit, a first switch circuit, a second switch circuit, a rechargeable power source module, a third switch circuit and a control circuit, wherein the second charging interface is used for being connected with a first charging interface of a to-be-charged device; the voltage modulation circuit comprises a first voltage output end, a second voltage output end and a voltage input end which is connected with an alternating-current input end; the rechargeable power source module is arranged between the first voltage output end and the second voltage output end in parallel; the rechargeable power source module is switched between a charging mode and a discharging mode according to input control signals; the control circuit is connected with the first switch circuit, the second switch circuit, the third switch circuit and the rechargeable power source module. The charging device solves the problem that during pulse charging, concentration polarization is reduced by stopping charging in the midway for a short time or using negative pulses and accordingly electric energy is wasted.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of charging device and control method.
Background technology
With continuing to develop for electronic device technology, lithium battery has turned into the electricity of most electronic equipments with its superior characteristic
Pond.However, as rechargeable battery, concentration polarization phenomenon can be produced during lithium cell charging.Concentration polarization is due to polar board surface
Electrolyte in contained ion concentration change cause, and concentration of electrolyte Yao Bi centers when charging near electrode will
Height, causes battery both end voltage higher than actual electromotive force, can now hinder the increase of charging current, slows down the chemistry of battery
Reaction speed.In order to reduce concentration polarization, some electronic equipments use pulse charge, by being superimposed certain frequency in charging current
Rate, width, the negative pulse of height or the midway of short time stop charging to reduce the concentration polarization of battery, increase transmission rate, enter
And reduce the charging interval.However, the short time midway of pulse charge stops filling or negative pulse, the electricity that should do not gather script
Can accumulate, cause the waste of electric energy.
The content of the invention
The invention provides a kind of charging device and control method, its purpose is to solve in pulse charge, pass through
Short time, midway stopped filling or negative pulse reduces concentration polarization, caused the problem of the waste of electric energy.
On the one hand, The embodiment provides a kind of charging device, the charging device includes：
For the second charging inlet that the first charging inlet with charging equipment is connected；
Voltage modulation circuit, including first voltage output end, second voltage output end and one are connected with electrical input is exchanged
The voltage input end for connecing, voltage modulation circuit is used to that the alternating current that is input into of electrical input will to be exchanged carries out voltage conversion, makes the
One voltage output end and second voltage output end institute output voltage difference are preset voltage value；Wherein first voltage output end and second
Voltage output end is respectively connecting to two charging ports of the second charging inlet；
First switch circuit, is arranged at exchange electrical input and is connected on the connection circuit of voltage modulation circuit；Wherein
One on-off circuit according to the control signal being input into, make voltage input end be connected to voltage modulation circuit connection circuit turn-on or
Disconnect；
Second switch circuit, is arranged at first voltage output end and is connected on the connection circuit of the second charging inlet；Wherein
Second switch circuit leads the connection circuit that first voltage output end is connected to the second electrical interface according to the control signal being input into
On-off is opened；
Can discharge and recharge power supply module, be arranged in parallel between first voltage output end and second voltage output end；And can fill
Discharge power supply module switches between the charge and discharge mode can according to the control signal being input into；
3rd on-off circuit, be arranged at can discharge and recharge power supply module be connected on the connection circuit of first voltage output end；
Wherein the 3rd on-off circuit according to the control signal being input into, make can discharge and recharge power supply module be connected to first voltage output end
Connection circuit turn-on or disconnection；
Control circuit, respectively with first switch circuit, second switch circuit, the 3rd on-off circuit and can discharge and recharge power supply mould
Group connection, to first switch circuit, second switch circuit, the 3rd on-off circuit and can discharge and recharge power supply module be input into control respectively
Signal, and control signal output part of the circuit also with the second charging inlet to be connected.
On the other hand, embodiments of the invention additionally provide a kind of control method of charging device, are applied to above-mentioned charging
Device, the method includes：
The current input signal of the exchange electrical input of detection charging device；
According to current input signal, when it is determined that charging device is in what is be connected to the second charging inlet with charging device
During the first stage that charging equipment is charged, respectively to first switch circuit, second switch circuit and the 3rd on-off circuit
Input control signal so that the first charging inlet of charging equipment, connection between voltage modulation circuit and the second charging inlet,
Form the first charging path charged to charging equipment；
When it is determined that charging device is in the second stage that stopping is charged to charging equipment, respectively to first switch
Circuit, second switch circuit, the 3rd on-off circuit and can discharge and recharge power supply module input control signal, making can discharge and recharge power supply mould
Group is in charge mode, and can be connected between discharge and recharge power supply module and voltage modulation circuit, is formed to can discharge and recharge power supply mould
The second charging path that group charges.
So, the present invention is provided charging device and control method, can charge and discharge by being set on the circuit of charging device
Power supply module, when the second battery of charging equipment is in negative pulse, the second battery is in discharge condition, can discharge and recharge power supply
Module charges, and absorbs the electricity that the second battery is released, it is to avoid the waste of electric energy；Stop the state of rushing when charging equipment is in, exchange
The electricity of electrical input input is can the charging of discharge and recharge power supply module, accumulation electric energy.When can discharge and recharge power supply module be in charge
During pattern, can discharge and recharge power supply module storage electric energy be easy to can discharge and recharge power supply module be in discharge mode when, set to be charged
Standby output electric energy, can do portable power source use.The present invention both reduces concentration polarization, and the waste of electric energy is avoided again；The present invention is solved
In pulse charge, by short time midway stop filling or negative pulse reduces concentration polarization, cause the waste of electric energy
Problem.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below by institute in the description to the embodiment of the present invention
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 represents the circuit connection diagram of the charging device that the first embodiment of the present invention is provided；
Fig. 2 represents the circuit connection diagram of the charging device that the first example of the first embodiment of the present invention is provided；
Fig. 3 represents the timing diagram of the first example of the first embodiment of the present invention；
Fig. 4 represents the circuit connection diagram of the charging device that the second example of the first embodiment of the present invention is provided；
The step of Fig. 5 represents the control method of the charging device that the second embodiment of the present invention is provided flow chart；
Fig. 6 represents one of circuit connection diagram of charging device that the example of the second embodiment of the present invention is provided；
Fig. 7 represents the two of the circuit connection diagram of the charging device that the example of the second embodiment of the present invention is provided；
Fig. 8 represents the timing diagram of the example of the second embodiment of the present invention；
Fig. 9 represents the block diagram of the mobile terminal that the third embodiment of the present invention is provided；
Figure 10 represents the block diagram of the mobile terminal that the fourth embodiment of the present invention is provided.
Description of reference numerals：
1st, voltage modulation circuit；2nd, first switch circuit；3rd, second switch circuit；4th, the 3rd on-off circuit；5th, can charge and discharge
Power supply module；6th, electrical input is exchanged；7th, rectification module；Q1, first switch；Q2, second switch；Q3, the 3rd switch；IC1、
First charging chip；IC2, the second charging chip；B1, the first battery；B2, the second battery.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
First embodiment
Referring to Fig. 1 and Fig. 2, the first embodiment of the present invention provides a kind of charging device, including：
For the second charging inlet that the first charging inlet with charging equipment is connected；Wherein, the second charging inlet bag
Include at least two charging ports.
Voltage modulation circuit 1, including first voltage output end, second voltage output end and one with exchange the phase of electrical input 6
The voltage input end of connection, voltage modulation circuit 1 carries out voltage conversion for that will exchange the alternating current that electrical input 6 is input into,
Make first voltage output end and second voltage output end institute output voltage poor required for preset voltage value, i.e. charging equipment
Magnitude of voltage；Wherein first voltage output end and second voltage output end are respectively connecting to two charging ends of the second charging inlet
Mouthful.
Alternatively, exchange electrical input 6 is connected to and rectification module 7 is provided with the connection circuit of voltage input end, is used for
The relatively low alternating current of the voltage of ac buck circuit output is converted into unidirectional pulsating nature direct current.
First switch circuit 2, is arranged at exchange electrical input 6 and is connected on the connection circuit of voltage modulation circuit 1；Wherein
First switch circuit 2 is led according to the control signal being input into, the connection circuit for making voltage input end be connected to voltage modulation circuit 1
On-off is opened so that voltage modulation circuit 1 switches on power or deenergization；
Second switch circuit 3, is arranged at first voltage output end and is connected on the connection circuit of the second charging inlet；Wherein
Second switch circuit 3 makes first voltage output end be connected to the connection circuit of the second charging inlet according to the control signal being input into
It is turned on or off；
Can discharge and recharge power supply module 5, be arranged in parallel between first voltage output end and second voltage output end；And can fill
Discharge power supply module 5 switches between the charge and discharge mode can according to the control signal being input into；Wherein, when can charge and discharge
When power supply module 5 is in charge mode, the electric energy being input into by exchange electrical input 6 changes input by voltage modulation circuit 1
Extremely can discharge and recharge power supply module 5, can discharge and recharge power supply module 5 storage electric energy；When can discharge and recharge power supply module 5 be in discharge mode
When, electric energy is exported to charging equipment, portable power source use can be done.
3rd on-off circuit 4, be arranged at can discharge and recharge power supply module 5 be connected to the connection circuit of first voltage output end
On；Wherein the 3rd on-off circuit 4 according to the control signal being input into, make can discharge and recharge power supply module 5 to be connected to first voltage defeated
Go out connection circuit turn-on or the disconnection at end；Control circuit, switchs with first switch circuit 2, second switch circuit the 3, the 3rd respectively
Circuit 4 and can discharge and recharge power supply module 5 connect, to first switch circuit 2, second switch circuit 3, the 3rd on-off circuit 4 and can
Discharge and recharge power supply module 5 is input into control signal respectively, and signal output part of the control circuit also with the second charging inlet is connected；Tool
Body ground, control circuit is respectively to first switch circuit 2, second switch circuit 3, the 3rd on-off circuit 4 input closure/disconnect control
Signal, to can discharge and recharge power supply module 5 input charge/discharge control signal, to the second charging inlet signal output part export
Control signal for controlling charging equipment charge/discharge.
So, when in order to reduce concentration polarization, control circuit controls charging equipment (i.e. above-mentioned charging equipment) periodically
Stop punching in negative pulse stage or short time in ground；When the second battery B2 of charging equipment is in negative pulse, the second battery B2
In discharge condition, control circuit is to can the input charging control signal of discharge and recharge power supply module 5 so that the second battery B2 is released
Electricity for can discharge and recharge power supply module 5 charge, absorb the electricity released of the second battery B2；When the second battery of charging equipment
B2 is in when stopping rushing state, and control circuit is to can the input charging control signal of discharge and recharge power supply module 5 so that exchange electrical input
6 output electricity for can discharge and recharge power supply module 5 charge.
Alternatively, referring to Fig. 2, first switch circuit 2 is included for making exchange electrical input 6 be connected to voltage modulation electricity
The connection circuit turn-on or the first switch Q1 of disconnection on road 1；First switch Q1 is closed according to the signal of input to first switch circuit 2
Close or disconnect, to realize that exchanging electrical input 6 is connected to connection circuit turn-on or the disconnection of voltage modulation circuit 1, open when first
When closing Q1 closures, realize that the incoming voltage modulation circuit 1 of electric energy that electrical input 6 is input into will be exchanged.
Second switch circuit 3 is included leads for the connection circuit for making first voltage output end be connected to the second charging inlet
The second switch Q2 that on-off is opened；When first switch Q1 and second switch Q2 are closed, the electricity that exchange electrical input 6 is input into
The incoming charging equipment end of energy, is that charging equipment charges.
3rd on-off circuit 4 include for make can discharge and recharge power supply module 5 be connected to the connection of first voltage output end
Circuit turn-on or the 3rd switch Q3 of disconnection.
Preferably, can discharge and recharge power supply module 5 include the first charging chip IC1 and the first battery B1 that are connected in series；
First charging chip IC1 receives the control signal that control circuit sends, and it is charge mode or discharge mode to control the first battery B1；
By the cooperation of the first battery B1 and the first charging chip IC1, realize can discharge and recharge power supply module 5 function.
Preferably, filter circuit is parallel between two voltage output ends, filter circuit at least includes being connected in parallel on inductor wire
Enclose the electric capacity of both sides；Filter circuit is used to filter off the ripple in rectifier output voltage.
Exchange electrical input 6 is connected to and rectification module 7 is provided with the connection circuit of voltage input end, for alternating current
Direct current energy can be converted into；So, voltage modulation circuit 1 also includes rectification module 7 and filter circuit.
It is asynchronous switch referring to the switches of second switch Q2 in Fig. 2 and Fig. 3, Fig. 2 and the 3rd Q3 as the first example, waits to fill
Electric equipment inside includes the second charging chip IC2, control unit and the second battery B2；Control unit is used to receive control circuit
The instruction for sending, controls the working condition of the second charging chip IC2 and the second battery B2.When Fig. 3 is the work of charging device
Sequence figure, wherein, I1 represents the electric current by the first battery B1, and I2 represents the electric current by the second battery B2.Make charging device
One work period includes t1 times and t2 times.
Wherein, in the t1 times：Control circuit sends conductivity control signal to second switch circuit 3, to the 3rd on-off circuit 4
Cut-off control signal is sent, then open circuit where the first battery B1, electric current I1=0, the first battery B1 stops being filled with reduction concentration difference
Polarization.Control circuit sends control instruction to control unit, and the second charging chip IC2 charges for the second battery B2, its electric current I2
=Icc2 (preset constant), the second battery B2 are in positive pulse stage, i.e. charging stage.
In the t2 times：Control circuit sends cut-off control signal to second switch circuit 3, is sent to the 3rd on-off circuit 4
Conductivity control signal, then circuit pathways where the first battery B1.It is the first battery that control circuit sends to the first charging chip IC1
The control signal that B1 charges, the first battery B1 charges, its electric current I1=Icc1 (preset constant), and the first battery B1 is in positive pulse
Stage.Second battery B2 opens a way, electric current I2=0, and the second battery B2 stops being filled with reduction concentration polarization.
To sum up, by the charging device, t1, t2 have the battery core can to receive the electricity transmitted from AC field input
Energy.One of battery is in charged state, and another battery is in and stops the state of filling to reduce concentration polarization, treats that it is carried out
When next positive pulse arrives, charged state is returned to.
As the second example, referring to Fig. 4, when exchange electrical input 6 is input into without alternating current (AC), the first charging inlet and the
When two charging inlets are connected, control circuit sends cut-off control signal to first switch circuit 2.Control circuit will be to can discharge and recharge
Power supply module 5 sends control of discharge instruction, while to be communicated with control unit be configured to charge mode by the second charging chip IC2.
Control circuit sends conductivity control signal to the on-off circuit 4 of second switch circuit 3 and the 3rd, and the first battery B1 passes through first
Again by the second charging chip IC2 for the second battery B2 charges after charging chip IC1 boostings.Now, charger is used as mobile electricity
Source uses, and is offered convenience to user's trip or in the case of having a power failure.
In the above embodiment of the present invention, by set on the circuit of charging device can discharge and recharge power supply module 5, when filling
Second battery B2 of electric equipment be in negative pulse when, the second battery B2 be in discharge condition, can discharge and recharge power supply module 5 charge,
Absorb the electricity that the second battery B2 is released, it is to avoid the waste of electric energy；Stop the state of rushing when charging equipment is in, exchange electrical input
6 input electricity for can discharge and recharge power supply module 5 charge, accumulate electric energy.When can discharge and recharge power supply module 5 be in charge mode
When, can discharge and recharge power supply module 5 storage electric energy be easy to can discharge and recharge power supply module 5 be in discharge mode when, to charging equipment
Output electric energy, can do portable power source use.The present invention both reduces concentration polarization, and the waste of electric energy is avoided again；The present invention is solved
In pulse charge, by short time midway stop filling or negative pulse reduces concentration polarization, the waste for causing electric energy is asked
Topic.
Second embodiment
Referring to Fig. 1, Fig. 2 and Fig. 5, the second embodiment of the present invention provides a kind of control method of charging device, application
Charging device in above-described embodiment, the method includes：
Step 501, the current input signal of the exchange electrical input 6 of detection charging device.
Wherein, detection alternating current access port whether there is electric energy input.
Step 502, according to current input signal, when it is determined that charging device is in the second charging inlet with charging device
During the first stage that the charging equipment being connected is charged, respectively to first switch circuit 2, second switch circuit 3 and
Three on-off circuit 4 is input into control signal so that the first charging inlet of charging equipment, voltage modulation circuit 1 and second charge
Connected between interface, form the first charging path charged to charging equipment.
Wherein, when the first stage charged to charging equipment in charging device, formed to charging equipment
The first charging path for charging, charges to charging equipment.
Step 503, when it is determined that charging device is in the second stage for stopping being charged to charging equipment, respectively to
First switch circuit 2, second switch circuit 3, the 3rd on-off circuit 4 and can discharge and recharge power supply module 5 input control signal, making can
Discharge and recharge power supply module 5 is in charge mode, and can be connected between discharge and recharge power supply module 5 and voltage modulation circuit 1, formed to
Can discharge and recharge power supply module 5 charge the second charging path.
Wherein, when in charging device stop to charging equipment charge second stage when, formed to can discharge and recharge electricity
The second charging path that source module 5 charges, being easy to can discharge and recharge module accumulation electric energy.
Preferably, can discharge and recharge power supply module 5 include the first charging chip IC1 and the first battery B1 that are connected in series；
First charging chip IC1 receives control signal, and it is charge mode or discharge mode to control the first battery B1；By the first battery B1
And first charging chip IC1 cooperation, realize can discharge and recharge power supply module 5 function.
Preferably, step 502 includes：
The first step, when detect exchange electrical input 6 have current input signal when, to first switch circuit 2 and second
On-off circuit 3 is input into the control signal for controlling circuit turn-on, and is input into for controlling circuit to break to the 3rd on-off circuit 4
The control signal opened；
Second step, when exchange 6 no current input signal of electrical input is detected, being input into second switch circuit 3 is used for
The control signal that control circuit disconnects, and the control signal for controlling circuit turn-on is input into the 3rd on-off circuit 4.
Specifically, the switches of configuration second switch Q2 and the 3rd Q3 is asynchronous switch, and alternating current input is detected in the first step
When there is current input signal at end 6, control second switch circuit 3 is turned on, and the 3rd on-off circuit 4 ends, and friendship is detected in second step
During stream 6 no current input signal of electrical input, control second switch circuit 3 ends, and the 3rd on-off circuit 4 is turned on, above-mentioned two step
As shown in the first example in first embodiment, embodiments of the invention will not be repeated here correspondence scene.
Preferably, step 502 includes：
When exchange 6 no current input signal of electrical input is detected, to the on-off circuit of second switch circuit 3 and the 3rd
4 are input into the control signal for controlling circuit turn-on, and are exported for controlling the first battery B1 to put to the first charging chip IC1
First discharge signal of electricity.
Wherein, when exchange 6 no current input signal of electrical input is detected, second switch circuit 3 and the 3rd is switched
Circuit 4 is turned on so that the first battery B1 of charging device charges for the second battery B2 of charging equipment, and charging device is used as shifting
Dynamic power supply is used, and is offered convenience to user's trip or in the case of having a power failure.Implement in scene such as first embodiment
Shown in two examples, embodiments of the invention will not be repeated here.
Preferably, the method also includes：
Detect the pulse signal by the second battery B2 of charging equipment；
When pulse signal is detected for positive pulse, the control for controlling circuit turn-on is input into second switch circuit 3
Signal, and it is input into the control signal for controlling circuit to end to the 3rd on-off circuit 4；Or
When pulse signal is detected for negative pulse, it is input into for controlling to the on-off circuit 4 of second switch circuit 3 and the 3rd
The control signal of circuit turn-on processed, it is the first battery B1 to be exported for controlling the first charging chip IC1 to the first charging chip IC1
The charging signals that are charged and exported for controlling the second battery B2 to be discharged to the second battery B2 of charging equipment
The second discharge signal.
Specifically, the pulse signal of the second battery B2 is detected, when pulse signal is positive pulse, is shown at the second battery B2
In charged state, now first switch circuit 2 is set and second switch circuit 3 is turned on, the 3rd on-off circuit 4 ends, make by
The electric energy of the exchange input of electrical input 6 charges for the second battery B2.
When pulse signal is negative pulse, show that the second battery B2 is in discharge condition, second switch circuit 3 is now set
Turned on the 3rd on-off circuit 4 so that the electric energy that the second battery B2 is released charges for the first battery B1, by under the accumulation of electric energy
Come.
As an example, referring to Fig. 6 to Fig. 8, wherein, charging equipment inside includes the second charging chip IC2, control
Unit and the second battery B2；Control unit is used to receiving the control instruction that sends of circuit, the second charging chip IC2 of control and
The working condition of the second battery B2.Corresponding scene when Fig. 6 is the second battery B2 positive pulses, Fig. 7 is the second battery B2 negative pulses
When corresponding scene, Fig. 8 be the corresponding timing diagram of above two scene.
Referring to Fig. 6, in the t3 times, the second battery B2 positive pulses.3rd on-off circuit 4 ends, and Q2 second switches circuit 3 is led
It is logical.First charging chip IC1 does not work, and the electric current into the first battery B1 is 0.Electric current into the second battery B2 is Icc2+.
In the t4 times, the second battery B2 negative pulses, first switch circuit 2 and second switch circuit 3 are turned on.First charging core
Piece IC1 is in charged state, and the electric current into the first battery B1 is Icc1.Second charging chip IC2 is in discharge condition, from the
The electric current of the outflow of two battery B2 is Icc2-.
In the above embodiment of the present invention, electricity is switched by controlling first switch circuit 2, second switch circuit 3 and the 3rd
The ON OFF state on road 4, the second battery B2 of control is in charged state or stops the state of rushing so that stop punching in the second battery B2
When, exchange electrical input 6 input electricity for can discharge and recharge power supply module 5 charge, accumulate electric energy.The present invention is also by detection the
Two battery B2 pulse signals it is positive and negative, the second battery B2 be in positive pulse when, be the second battery B2 charge；In the second battery B2
During in negative pulse, control can discharge and recharge power supply module 5 charge, absorb the electricity released of the second battery B2, it is to avoid electric energy
Waste；When can discharge and recharge power supply module 5 be in discharge mode when, to charging equipment export electric energy, can do portable power source use.This
Invention both reduces concentration polarization, and the waste of electric energy is avoided again；The present invention is solved in pulse charge, by the short time halfway
Stop filling or negative pulse reduces concentration polarization, cause the problem of the waste of electric energy.
3rd embodiment
Fig. 9 is the block diagram of the mobile terminal of third embodiment of the invention.Mobile terminal 900 shown in Fig. 9 includes：At least one
Individual processor 901, memory 902, at least one network interface 904 and other users interface 903.In mobile terminal 900
Each component is coupled by bus system 909.It is understood that bus system 909 is used to realize the company between these components
Connect letter.Bus system 905 in addition to including data/address bus, also including power bus, controlling bus and status signal bus in addition.But
Be for clear explanation for the sake of, various buses are all designated as bus system 905 in fig .9.
Wherein, user interface 903 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 902 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used as outside height
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double DataRate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus random access memory
(DirectRambusRAM, DRRAM).The memory 902 of system and method described herein be intended to including but not limited to these and
The memory of any other suitable type.
In some embodiments, memory 902 stores following element, can perform module or data structure, or
Person their subset, or their superset：Operating system 9021 and application program 9022.
Wherein, operating system 9021, comprising various system programs, such as ccf layer, core library layer, driving layer etc. are used for
Realize various basic businesses and process hardware based task.Application program 9022, comprising various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business, realize the embodiment of the present invention
The program of method may be embodied in application program 9022.
In embodiments of the present invention, by the program for calling memory 902 to store or instruction, specifically, can be application
The program stored in program 9022 or instruction, processor 901 are used for：The current input signal of detection exchange electrical input；According to
Current input signal, when it is determined that charging equipment of the charging device in being connected to the second charging inlet with charging device enters
During the first stage that row charges, control signal is input into first switch circuit, second switch circuit and the 3rd on-off circuit respectively,
So that the first charging inlet of charging equipment, connection between voltage modulation circuit and the second charging inlet, form to be charged
First charging path of equipment charge；When it is determined that charging device is in the second stage that stopping is charged to charging equipment
When, respectively to first switch circuit, second switch circuit, the 3rd on-off circuit and can discharge and recharge power supply module input control letter
Number, make can discharge and recharge power supply module be in charge mode, and can be connected between discharge and recharge power supply module and voltage modulation circuit, shape
The second charging path that Cheng Xiangke discharge and recharge power supplys module charges.
The method that the embodiments of the present invention are disclosed can apply in processor 901, or be realized by processor 901.
Processor 901 is probably a kind of IC chip, the disposal ability with signal.In implementation process, the above method it is each
Step can be completed by the instruction of the integrated logic circuit of the hardware in processor 901 or software form.Above-mentioned treatment
Device 901 can be general processor, digital signal processor (Digital Signal Processor, DSP), special integrated electricity
Road (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field
Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components.Can realize or perform disclosed each method in the embodiment of the present invention, step and logic diagram.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to embodiment of the present invention institute
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module may be located at random access memory, and flash memory, read-only storage may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 902, processor 901 reads the information in memory 902, with reference to the step of its hardware completion above method.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits (Application
Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable
LogicDevice, PLD), field programmable gate array (Field Programmable Gate Array, FPGA), general place
In reason device, controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realized for software, can be realized by performing the module (such as process, function etc.) of function described herein herein
Described technology.Software code is storable in memory and by computing device.Memory can within a processor or
Realize processor outside.
Alternatively, as another embodiment, can discharge and recharge power supply module include the first charging chip for being connected in series with
And first battery；First charging chip receives control signal, and it is charge mode or discharge mode to control the first battery.
Alternatively, as another embodiment, processor 901 is additionally operable to：There is electric current defeated when exchange electrical input is detected
When entering signal, the control signal for controlling circuit turn-on, Yi Jixiang are input into first switch circuit and second switch circuit
3rd on-off circuit is input into the control signal for controlling circuit to disconnect；Electrical input no current input signal is exchanged when detecting
When, the control signal for controlling circuit to disconnect is input into second switch circuit, and be input into for controlling to the 3rd on-off circuit
The control signal of circuit turn-on processed.
Alternatively, as another embodiment, processor 901 is additionally operable to：When detecting, exchange electrical input no current is defeated
When entering signal, the control signal for controlling circuit turn-on, Yi Jixiang are input into second switch circuit and the 3rd on-off circuit
First charging chip exports the first discharge signal for controlling the first battery discharge.
Alternatively, as another embodiment, processor 901 is additionally operable to：Detect by the second battery of charging equipment
Pulse signal；When pulse signal is detected for positive pulse, the control for controlling circuit turn-on is input into second switch circuit
Signal processed, and it is input into the control signal for controlling circuit to end to the 3rd on-off circuit；Or be when pulse signal is detected
During negative pulse, the control signal for controlling circuit turn-on is input into second switch circuit and the 3rd on-off circuit, to first
It is charging signals that the first battery is charged and to charging equipment that charging chip is exported for controlling the first charging chip
The second battery export for controlling the second discharge signal for being discharged of the second battery.
Mobile terminal 900 can realize each process of mobile terminal realization in previous embodiment, to avoid repeating, here
Repeat no more.
The mobile terminal 900 of the embodiment of the present invention, by processor 901 by controlling first switch circuit, second switch
The ON OFF state of circuit and the 3rd on-off circuit, the second battery of control is in and charged state or stops the state of rushing so that the
When two batteries stop rushing, the electricity of exchange electrical input input is can the charging of discharge and recharge power supply module, accumulation electric energy.The present invention is also led to
The positive and negative of the second battery impulse signal of detection is crossed, is that the second battery charges when the second battery is in positive pulse；In the second battery
During in negative pulse, control can the charging of discharge and recharge power supply module, the electricity that the second battery of absorption is released, it is to avoid the wave of electric energy
Take；When can discharge and recharge power supply module be in discharge mode when, to charging equipment export electric energy, can do portable power source use.This hair
It is bright both to reduce concentration polarization, the waste of electric energy is avoided again；The present invention is solved in pulse charge, is stopped by short time midway
Fill or negative pulse reduces concentration polarization, cause the problem of the waste of electric energy.
Fourth embodiment
Figure 10 is the structure chart of the mobile terminal that fourth embodiment of the invention is provided.Specifically, the mobile terminal in Figure 10
1000 can be mobile phone, panel computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle mounted electric
Brain etc..
Mobile terminal 1 000 in Figure 10 includes radio frequency (RadioFrequency, RF) circuit 1010, memory 1020, defeated
Enter unit 1030, display unit 1040, processor 1050, WiFi (Wireless Fidelity) module 1060, voicefrequency circuit
1070th, power supply 1080.
Wherein, input block 1030 can be used to receive the numeral or character information of user input, and produce with movement eventually
The user at end 1000 is set and the relevant signal input of function control.
Specifically, in the embodiment of the present invention, the input block 1030 can include contact panel 1031.Contact panel
1031, also referred to as touch-screen, user can be collected thereon or neighbouring touch operation (such as user uses finger, stylus etc. to appoint
What operation of suitable object or annex on contact panel 1031), and corresponding connection is driven according to formula set in advance
Device.Optionally, contact panel 1031 may include two parts of touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation brings, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives the processor 1050, and energy
Order that receiving processor 1050 is sent simultaneously is performed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The polytypes such as sound wave realize contact panel 1031.Except contact panel 1031, input block 1030 can also include that other are defeated
Enter equipment 1032, other input equipments 1032 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, one or more in action bars etc..
Wherein, display unit 1040 can be used for display by the information of user input or be supplied to information and the movement of user
The various menu interfaces of terminal 1000.Display unit 1040 may include display panel 1041, optionally, using LCD or can have
The forms such as machine light emitting diode (Organic Light-Emitting Diode, OLED) configure display panel 1041.
It should be noted that contact panel 1031 can cover display panel 1041, touch display screen is formed, when the touch display screen
Detect thereon or after neighbouring touch operation, processor 1050 is sent to determine the type of touch event, with post processing
Device 1050 provides corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And the arrangement mode of the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two and show
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area be used for show utilization rate control higher, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
In embodiments of the present invention, by call store the first memory 1021 in software program and/or module and/
Or the data in the second memory 1022, processor 1050 is used for：The current input signal of detection exchange electrical input；According to
Current input signal, when it is determined that charging equipment of the charging device in being connected to the second charging inlet with charging device enters
During the first stage that row charges, control signal is input into first switch circuit, second switch circuit and the 3rd on-off circuit respectively,
So that the first charging inlet of charging equipment, connection between voltage modulation circuit and the second charging inlet, form to be charged
First charging path of equipment charge；When it is determined that charging device is in the second stage that stopping is charged to charging equipment
When, respectively to first switch circuit, second switch circuit, the 3rd on-off circuit and can discharge and recharge power supply module input control letter
Number, make can discharge and recharge power supply module be in charge mode, and can be connected between discharge and recharge power supply module and voltage modulation circuit, shape
The second charging path that Cheng Xiangke discharge and recharge power supplys module charges.
Alternatively, as another embodiment, can discharge and recharge power supply module include the first charging chip for being connected in series with
And first battery；First charging chip receives control signal, and it is charge mode or discharge mode to control the first battery.
Alternatively, as another embodiment, processor 1001 is additionally operable to：There is electric current defeated when exchange electrical input is detected
When entering signal, the control signal for controlling circuit turn-on, Yi Jixiang are input into first switch circuit and second switch circuit
3rd on-off circuit is input into the control signal for controlling circuit to disconnect；Electrical input no current input signal is exchanged when detecting
When, the control signal for controlling circuit to disconnect is input into second switch circuit, and be input into for controlling to the 3rd on-off circuit
The control signal of circuit turn-on processed.
Alternatively, as another embodiment, processor 1001 is additionally operable to：When detecting, exchange electrical input no current is defeated
When entering signal, the control signal for controlling circuit turn-on, Yi Jixiang are input into second switch circuit and the 3rd on-off circuit
First charging chip exports the first discharge signal for controlling the first battery discharge.
Alternatively, as another embodiment, processor 1001 is additionally operable to：Detect by the second battery of charging equipment
Pulse signal；When pulse signal is detected for positive pulse, the control for controlling circuit turn-on is input into second switch circuit
Signal processed, and it is input into the control signal for controlling circuit to end to the 3rd on-off circuit；Or be when pulse signal is detected
During negative pulse, the control signal for controlling circuit turn-on is input into second switch circuit and the 3rd on-off circuit, to first
It is charging signals that the first battery is charged and to charging equipment that charging chip is exported for controlling the first charging chip
The second battery export for controlling the second discharge signal for being discharged of the second battery.
Mobile terminal 1 000 can realize each process of mobile terminal realization in previous embodiment, to avoid repeating, this
In repeat no more.
The mobile terminal 1 000 of the embodiment of the present invention, is opened by processor 1050 by controlling first switch circuit, second
Powered-down road and the ON OFF state of the 3rd on-off circuit, the second battery of control are in charged state or stop the state of rushing so that
When second battery stops rushing, the electricity of exchange electrical input input is can the charging of discharge and recharge power supply module, accumulation electric energy.The present invention is also
It is that the second battery charges when the second battery is in positive pulse by detecting the positive and negative of the second battery impulse signal；In the second electricity
When pond is in negative pulse, control can the charging of discharge and recharge power supply module, the electricity that the second battery of absorption is released, it is to avoid the wave of electric energy
Take；When can discharge and recharge power supply module be in discharge mode when, to charging equipment export electric energy, can do portable power source use.This hair
It is bright both to reduce concentration polarization, the waste of electric energy is avoided again；The present invention is solved in pulse charge, is stopped by short time midway
Fill or negative pulse reduces concentration polarization, cause the problem of the waste of electric energy.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function, but this realization can be realized it is not considered that exceeding using distinct methods to each specific application
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, can be by other
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.
If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be with
Storage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc, CD etc. are various can be with Jie of store program codes
Matter.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of charging device, it is characterised in that including：
For the second charging inlet that the first charging inlet with charging equipment is connected；
Voltage modulation circuit, including first voltage output end, second voltage output end and one with exchange what electrical input was connected
Voltage input end, the voltage modulation circuit is used to for the alternating current that the exchange electrical input is input into carry out voltage conversion,
The first voltage output end and second voltage output end institute output voltage difference is set to be preset voltage value；Wherein described first
Voltage output end and the second voltage output end are respectively connecting to two charging ports of second charging inlet；
First switch circuit, is arranged at the exchange electrical input and is connected on the connection circuit of the voltage modulation circuit；Its
Described in first switch circuit according to the control signal being input into, the voltage input end is connected to the voltage modulation circuit
Connection circuit turn-on or disconnection；
Second switch circuit, is arranged at the first voltage output end and is connected on the connection circuit of second charging inlet；
Wherein described second switch circuit makes the first voltage output end be connected to described second to fill according to the control signal being input into
The connection circuit turn-on of electrical interface or disconnection；
Can discharge and recharge power supply module, be arranged in parallel between the first voltage output end and the second voltage output end；And
It is described can discharge and recharge power supply module according to the control signal being input into, switch between the charge and discharge mode can；
3rd on-off circuit, be arranged at it is described can discharge and recharge power supply module be connected to the connection circuit of the first voltage output end
On；Wherein described 3rd on-off circuit according to the control signal being input into, make it is described can discharge and recharge power supply module be connected to
The connection circuit turn-on of the first voltage output end or disconnection；
Control circuit, respectively with the first switch circuit, the second switch circuit, the 3rd on-off circuit and it is described can
Discharge and recharge power supply module is connected, to the first switch circuit, the second switch circuit, the 3rd on-off circuit and described
Can discharge and recharge power supply module be input into control signal respectively, and the control circuit also with the signal output of second charging inlet
End connection.
2. charging device according to claim 1, it is characterised in that it is described can discharge and recharge power supply module include being connected in series
The first charging chip and the first battery；
First charging chip receives the control signal that the control circuit sends, and it is charge mode to control first battery
Or discharge mode.
3. charging device according to claim 1, it is characterised in that the first switch circuit includes described for making
Exchange electrical input is connected to the connection circuit turn-on of the voltage modulation circuit or the first switch of disconnection；
The second switch circuit includes the company for making the first voltage output end be connected to second charging inlet
Connect the second switch of circuit turn-on or disconnection；
3rd on-off circuit include for make it is described can discharge and recharge power supply module be connected to the first voltage output end
Connection circuit turn-on or disconnection the 3rd switch.
4. charging device according to claim 1, it is characterised in that be parallel with filtering between two voltage output ends
Circuit.
5. charging device according to claim 1, it is characterised in that it is defeated that the exchange electrical input is connected to the voltage
Enter and be provided with rectification module on the connection circuit at end.
6. a kind of control method of charging device, is applied to the charging device as any one of claim 1 to 5, and it is special
Levy and be, methods described includes：
Detect the current input signal of the exchange electrical input of the charging device；
According to the current input signal, when it is determined that the charging device is in the second charging inlet with the charging device
During the first stage that the charging equipment being connected is charged, respectively to the first switch circuit, second switch electricity
Road and the 3rd on-off circuit input control signal so that the first charging inlet of the charging equipment, voltage modulation electricity
Connected between road and second charging inlet, form the first charging path charged to the charging equipment；
When it is determined that the charging device is in the second stage that stopping is charged to the charging equipment, respectively to described
First switch circuit, the second switch circuit, the 3rd on-off circuit and it is described can discharge and recharge power supply module input control
Signal, make it is described can discharge and recharge power supply module be in charge mode, and it is described can discharge and recharge power supply module and the voltage modulation
Between circuit connect, formed to it is described can discharge and recharge power supply module charge the second charging path.
7. method according to claim 6, it is characterised in that it is described can discharge and recharge power supply module include being connected in series the
One charging chip and the first battery；
First charging chip receives control signal, and it is charge mode or discharge mode to control first battery.
8. method according to claim 6, it is characterised in that described according to the current input signal, when it is determined that described
Charging device is in first that the charging equipment being connected to the second charging inlet by the charging device is charged
During the stage, control signal is input into the first switch circuit, the second switch circuit and the 3rd on-off circuit respectively
The step of, including：
When detect it is described exchange electrical input have current input signal when, opened to the first switch circuit and described second
Powered-down road is input into the control signal for controlling circuit turn-on, and is input into for controlling circuit to break to the 3rd on-off circuit
The control signal opened；
When the exchange electrical input no current input signal is detected, it is input into for controlling electricity to the second switch circuit
The control signal that road disconnects, and the control signal for controlling circuit turn-on is input into the 3rd on-off circuit.
9. method according to claim 7, it is characterised in that described according to the current input signal, when it is determined that described
Charging device is in first that the charging equipment being connected to the second charging inlet by the charging device is charged
During the stage, control signal is input into the first switch circuit, the second switch circuit and the 3rd on-off circuit respectively
The step of, including：
When the exchange electrical input no current input signal is detected, opened to the second switch circuit and the described 3rd
Powered-down road is input into the control signal for controlling circuit turn-on, and is exported for controlling described to first charging chip
First discharge signal of one battery discharge.
10. method according to claim 7, it is characterised in that methods described also includes：
Detect the pulse signal by the second battery of the charging equipment；
When the pulse signal is detected for positive pulse, the control for controlling circuit turn-on is input into the second switch circuit
Signal processed, and it is input into the control signal for controlling circuit to end to the 3rd on-off circuit；Or
When the pulse signal is detected for negative pulse, it is input into the second switch circuit and the 3rd on-off circuit
Control signal for controlling circuit turn-on, it is institute to be exported for controlling first charging chip to first charging chip
State charging signals and exported for controlling described to the second battery of the charging equipment that the first battery charged
The second discharge signal that two batteries are discharged.
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| CN112119560A (en) * | 2018-06-04 | 2020-12-22 | 华为技术有限公司 | Backlight control circuit and method and terminal equipment |
| CN112928809A (en) * | 2021-04-23 | 2021-06-08 | 阳光电源股份有限公司 | Power supply device, control method and system |
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| CN106685016B (en) | 2018-08-17 |
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Effective date of registration: 20200527 Address after: 283 No. 523860 Guangdong province Dongguan city Changan town usha BBK Avenue Patentee after: VIVO MOBILE COMMUNICATION Co.,Ltd. Address before: 283 No. 523860 Guangdong province Dongguan city Changan town usha BBK Avenue Co-patentee before: Wewo Mobile Communication Co. Ltd. Beijing branch Patentee before: VIVO MOBILE COMMUNICATION Co.,Ltd. |