CN105978103B - A kind of battery charge controller and method - Google Patents
A kind of battery charge controller and method Download PDFInfo
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- CN105978103B CN105978103B CN201610512316.8A CN201610512316A CN105978103B CN 105978103 B CN105978103 B CN 105978103B CN 201610512316 A CN201610512316 A CN 201610512316A CN 105978103 B CN105978103 B CN 105978103B
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- H02J7/0086—
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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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Abstract
The invention discloses a kind of battery charge controller and method, which includes: detection module when terminal charge, according to preset detection cycle, detects the voltage of end cell.Charge control module is end cell charging by constant current charging mode when the voltage of end cell is less than or equal to preset voltage threshold.Scheme can accurately detect the real voltage of battery in constant-current charging phase through the embodiment of the present invention, to avoid the influence of cell voltage virtual height, extend the constant-current charge time, improve charge efficiency and user experience.
Description
Technical field
The present invention relates to terminal charge technical field more particularly to a kind of battery charge controller and methods.
Background technique
In current terminal charge technology, with the gradually development for reducing charging heating technique, so that fast in terminal low pressure
Quick charge can be carried out using bigger charging current during speed charging (i.e. constant-current charge).But when large current charge, by
In factors such as charge circuit, battery protecting plate and the internal resistances of cell, cell voltage virtual height can be made very much, enter constant-voltage charge too early
In the stage, this not only affects charge efficiency, also by the low charging experience sense of user.
Summary of the invention
It, can be accurate in constant-current charging phase it is a primary object of the present invention to propose a kind of battery charge controller and method
It detects the real voltage of battery, to avoid the influence of cell voltage virtual height, extends the constant-current charge time, improve charging effect
Rate and user experience.
To achieve the above object, a kind of battery charge controller provided by the invention, described device include: detection module and fill
Electric control module.
Detection module, for according to preset detection cycle, detecting the current charging electricity of end cell when terminal charge
Pressure.
Charge control module, for passing through constant current when the voltage of end cell is less than or equal to preset voltage threshold
Charge mode is end cell charging.
Optionally, detection module, according to preset detection cycle, detects the voltage packet of end cell when terminal charge
It includes:
Under constant current charging mode, when the duration of charge of end cell reaches preset detection cycle, charging is enabled
Control module disconnects the charging path between charger and end cell, and disconnected end battery is the logical of terminal system power supply
Road is terminal system power supply by terminal inner charging chip.
During being terminal system power supply by terminal inner charging chip, the current voltage of end cell is detected, and will
The current voltage of end cell is compared with preset voltage threshold.
Optionally, it includes: connection charger and end that charge control module, which is end cell charging by constant current charging mode,
The charging path between battery is held, constant current charging mode is switched back into.
Optionally, charge control module is also used to:
When the voltage of end cell is greater than preset voltage threshold, the charging connected between charger and end cell is logical
Road is switched to constant-voltage charge mode.
Optionally, device further include: judgment module.
Judgment module, for charger communication, judging whether charger supports constant current after charger is connect with terminal
Charge mode.
Charge control module is also used to when charger does not support constant current charging mode, connects charger and terminal inner
The charging path between charging path and terminal inner chip and end cell between chip, is charged by terminal inner
Chip is end cell power supply, and is terminal system power supply by terminal inner charging chip.
Charge control module, be also used to when charger support constant current charging mode when, connection charger and end cell it
Between charging path, by constant current charging mode be end cell power.
In addition, to achieve the above object, the invention also provides a kind of charge control methods, this method comprises:
When terminal charge, according to preset detection cycle, the current charging voltage of end cell is detected.
It is end cell by constant current charging mode when the voltage of end cell is less than or equal to preset voltage threshold
Charging.
Optionally, when terminal charge, according to preset detection cycle, the voltage for detecting end cell includes:
Under constant current charging mode, when the duration of charge of end cell reaches preset detection cycle, disconnection is filled
Charging path between electric appliance and end cell, and disconnected end battery is the access of terminal system power supply, passes through terminal inner
Charging chip is terminal system power supply.
During being terminal system power supply by terminal inner charging chip, the current voltage of end cell is detected, and will
The current voltage of end cell is compared with preset voltage threshold.
It optionally, include: between connection charger and end cell for end cell charging by constant current charging mode
Charging path switches back into constant current charging mode.
Optionally, this method further include:
When the voltage of end cell is greater than preset voltage threshold, the charging connected between charger and end cell is logical
Road is switched to constant-voltage charge mode.
Optionally, this method further include:
After charger is connect with terminal, with charger communication, judge whether charger supports constant current charging mode.
When charger does not support constant current charging mode, the charging path between charger and terminal inner chip is connected,
And the charging path between terminal inner chip and end cell, it is end cell power supply by terminal inner charging chip,
And passing through terminal inner charging chip is terminal system power supply.
When charger supports constant current charging mode, the charging path between charger and end cell is connected, perseverance is passed through
Current charge mode is end cell power supply.
Battery charge controller proposed by the present invention and method include: detection module when terminal charge, according to preset inspection
The period is surveyed, the voltage of end cell is detected.Charge control module is less than or equal to preset voltage threshold when the voltage of end cell
It is end cell charging by constant current charging mode when value.Scheme can be in constant-current charging phase standard through the embodiment of the present invention
It really detects the real voltage of battery, to avoid the influence of cell voltage virtual height, extends the constant-current charge time, improve charging effect
Rate and user experience.
Detailed description of the invention
The hardware structural diagram of Fig. 1 each embodiment one optional mobile terminal to realize the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the battery charge controller composition block diagram of the embodiment of the present invention；
Fig. 4 is the terminal charge principle hardware schematic of the embodiment of the present invention；
Fig. 5 is the charge control method flow chart of the embodiment of the present invention；
Fig. 6 is the charge control method schematic diagram of the embodiment of the present invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The each one optional mobile terminal of embodiment of the present invention is realized in description with reference to the drawings.In subsequent description
In, using the suffix for indicating such as " module ", " component " or " unit " of element only for being conducive to explanation of the invention,
There is no specific meanings for itself.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving
Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP
The mobile terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for moving
Except the element of purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Fig. 1 to realize the present invention the optional mobile terminal of each embodiment hardware configuration signal.
Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown
Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system
Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module
112, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast from external broadcast management server via broadcast channel
Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting
Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB)
Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast
Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111
It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video
It broadcasts-holds (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
(ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/
Or broadcast related information can store in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal may include that voice is logical
Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.
The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting short range communication.Some examples of short-range communication technology include indigo plant
ToothTM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115, which calculates, comes from three or more satellites
Range information and correct time information and the Information application triangulation for calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, it is defended for the method for calculating position and temporal information using three
Star and the error that calculated position and temporal information are corrected by using an other satellite.In addition, GPS module 115
It can be by Continuous plus current location information in real time come calculating speed information.
A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera
Microphone 1220, camera 121 is to the static map obtained in video acquisition mode or image capture mode by image capture apparatus
The image data of piece or video is handled.Treated, and picture frame may be displayed on display unit 151.At camera 121
Picture frame after reason can store in memory 160 (or other storage mediums) or carry out via wireless communication unit 110
It sends, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (audio data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action
Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model
For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122
Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or
Person's interference.
The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal
Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch
Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape
State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100
The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone
The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include that proximity sensor 1410 will combine below
Touch screen is described this.
Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user
It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM)
Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know
Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from
The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it
Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is
The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated
Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.Output unit 150 may include display
Unit 151, audio output module 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode
Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure
Picture and the UI or GUI of correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
151 may be used as input unit and output device.Display unit 151 may include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160
The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement
The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes.
Audio output module 152 may include loudspeaker, buzzer etc..
Alarm unit 153 can provide output notifying event to mobile terminal 100.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm unit
153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be in the form of vibration
Output is provided, when receiving calling, message or some other entrance communications (incomingcommunication), alarm list
Member 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or audio output module 152.
Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 160 store function cooperates.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or can be structured as and control
Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 may be constructed such that using via frame or grouping send data it is all if any
Line and wireless communication system and satellite-based communication system operate.
Referring now to Fig. 2 description communication system that wherein mobile terminal according to the present invention can operate.
Different air interface and/or physical layer can be used in such communication system.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (particularly, long term evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such introduction is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system may include multiple mobile terminals 100, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
Back haul link can be constructed according to any in several known interfaces, and the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system may include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of direction specific direction
Each subregion of line covering is radially far from BS270.Alternatively, each subregion can be by two or more for diversity reception
Antenna covering.Each BS270, which may be constructed such that, supports multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed, which intersects, can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly indicating single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Alternatively, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to the mobile terminal operated in system by broadcsting transmitter (BT) 295
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 100 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.The help of satellite 300 positions multiple mobile terminals
At least one of 100.
In Fig. 2, multiple satellites 300 are depicted, it is understood that, it is useful to can use any number of satellite acquisition
Location information.GPS module 115 as shown in Figure 1 is generally configured to cooperate with satellite 300 to obtain desired positioning and believe
Breath.It substitutes GPS tracking technique or except GPS tracking technique, the other of the position that can track mobile terminal can be used
Technology.In addition, at least one 300 property of can choose of GPS satellite or extraly processing satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminals 100
Signal.Mobile terminal 100 usually participates in call, information receiving and transmitting and other types of communication.Certain base station 270 is received each anti-
It is handled in specific BS270 to link signal.The data of acquisition are forwarded to relevant BSC275.BSC provides call
The mobile management function of resource allocation and the coordination including the soft switching process between BS270.The number that BSC275 will also be received
According to MSC280 is routed to, the additional route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 controls BS270 correspondingly with by forward link signals
It is sent to mobile terminal 100.
Based on above-mentioned optional mobile terminal hardware configuration and communication system, each embodiment of the method for the present invention is proposed.
The gradually development of current terminal charge technology, so that during terminal low pressure quick charge (i.e. constant-current charge)
Quick charge can be carried out using bigger charging current.But when large current charge, due to charge circuit, battery protecting plate and electricity
The factors such as pond internal resistance, there are many cell voltage virtual height when can make large current charge, enter constant voltage charging phase too early, influence constant current
Charging time.If battery real voltage can accurately be detected in constant-current charge, so that it may solve the problems, such as this, extend constant current
Charging time accelerates charging rate, reduces the charging time, and improve the charging experience sense of user.
To achieve the above object, the embodiment of the invention provides a kind of battery charge controllers 01, such as Fig. 3, shown in Fig. 4, institute
Stating device includes: detection module 02 and charge control module 03.The battery charge controller 01 of the embodiment of the present invention can be applied to
In Master control chip in the terminal charge hardware elementary diagram as shown in implementation example figure 4, can also independently of charger and terminal,
It is applied as individual battery charge controller.
Detection module 02, for according to preset detection cycle, detecting the voltage of end cell when terminal charge.
In embodiments of the present invention, right by detection module 02 in order to obtain the real voltage of end cell in time
The voltage of end cell is periodically detected, so that the cell voltage to each period understands in time, is avoided due to charging
Shadow of the illusion caused by the cell voltage virtual height that the factors such as circuit, battery protecting plate and the internal resistance of cell generate to terminal charge electric current
It rings.Here the preset detection cycle can according to different application scenarios self-definings, for example, according to terminal configuring condition,
The size etc. of charging current, with no restrictions to specific value.And in embodiments of the present invention, for the specific inspection of cell voltage
Also with no restrictions, any method that can be realized battery voltage detection is all in the protection model of the embodiment of the present invention for survey device and method
Within enclosing.
In addition, in other embodiments, according to different application scenarios, voltage detecting of the detection module 02 to end cell
The method that real-time detection can also be used, can understand the real voltage of end cell constantly, improve the monitoring essence of charging voltage
Degree.Or the form using pre-alert notification triggers warning module when the voltage of end cell reaches a certain preset voltage value
And/or notification module, the voltage of notice 02 present terminal battery of detection module has reached preset voltage value, so that detection
Module 02 uses corresponding measure in time.
Optionally, detection module 02, according to preset detection cycle, detects the voltage packet of end cell when terminal charge
Include step S101-S102:
S101, under constant current charging mode, when the duration of charge of end cell reaches preset detection cycle, when
When the duration of charge of end cell reaches preset detection cycle, charge control module 03 is enabled to disconnect charger and terminal electricity
Charging path between pond, and disconnected end battery is the access of terminal system power supply, is eventually by terminal inner charging chip
End system power supply.
In embodiments of the present invention, constant current charging mode is supported in current charger, and be eventually by constant current charging mode
In point battery charging process, when the duration of charge of end cell reaches preset detection cycle, if detection module 02
Want the current voltage of detection end cell, in order to keep voltage detecting safer, more acurrate, needs to enable charge control module 03 temporary
When disconnect the constant-current charge access of current charger, charged by charger by terminal inner chip of nominal charging voltage, and
It is terminal system power supply by terminal inner charging chip.Here, the time temporarily disconnected can be according to different scenes voluntarily
Definition, for example, according to the speed of terminal processes speed, according to charger and/or the heat condition of present terminal etc..
The constant-current charge access of charger is disconnected for charge control module below with reference to the hardware schematic of implementation example figure 4
Scheme be illustrated: first disconnect charger and end cell connection switch K2, stop by charger be end cell
Power supply, and the connection switch K3 between disconnected end battery and terminal system stop through end cell being terminal system power supply,
Then the connection switch K1 being closed between terminal inner charging chip and terminal system is terminal by terminal inner charging chip
System power supply, charger export normal voltage, power for terminal inner charging chip, by charge inside chip to system power supply,
Battery does not give system power supply, and end cell both discharges without charging or not at this time, and the cell voltage detected is electric close to open circuit
Pressure.
It S102, is being during terminal system is powered, to detect the current voltage of end cell by terminal inner charging chip,
And the current voltage of end cell is compared with preset voltage threshold.
It in embodiments of the present invention, can after enabling charge control module 03 disconnect the constant-current charge access of charger
Pairing approximation carries out voltage detecting in the lower end cell of open circuit, and the cell voltage that will test out and preset voltage threshold into
Row compares, and to judge the size of present terminal cell voltage, the preset voltage threshold usually be can be from constant-current charge here
It is transformed into the critical voltage of constant-voltage charge, specific value is not particularly limited, can be voluntarily fixed according to different application scenarios
Justice, for example, itself of charger and terminal configuring condition etc. is defined.If detecting that the voltage of end cell is less than or waits
In the preset voltage threshold, illustrate that the real voltage of present terminal battery is high not enough, present charge state can be maintained, such as
Fruit detects that the voltage of end cell is greater than the preset voltage threshold, then illustrates the real voltage of present terminal battery very
Height needs to change present charge state and persistently increases bring security risk to avoid voltage.
Charge control module 03, for passing through perseverance when the voltage of end cell is less than or equal to preset voltage threshold
Current charge mode is end cell charging.
In embodiments of the present invention, the real voltage state of present terminal battery is detected by above-mentioned detection module 02
After, it can be taken appropriate measures according to specific judging result for current charge mode, to guarantee to charge
In the case where safety, charge efficiency is improved.
If the voltage of end cell is less than or equal to the preset voltage threshold, illustrate the true electricity of present terminal battery
Pressure is high not enough, can continue to constant-current charge charge mode, that is, can continue to fill using biggish charging current as terminal
Electricity, to improve charge efficiency and user experience.
Optionally, charge control module 03 by constant current charging mode be end cell charging include: connection charger with
Charging path between end cell, switches back into constant current charging mode.
In embodiments of the present invention, charge control module 03 is the specific side of end cell charging by constant current charging mode
Case is: again connecting the charging path between charger and end cell, fills from above-mentioned charger for terminal inner
Electrical chip power supply, being transformed into the state of system power supply by charger by charge inside chip is terminal battery terminal, and by end
Point battery is the state of terminal system power supply, continues to fill with preset big charging current by end cell of constant current charging mode
Electricity.
The detailed side of constant-current charge access is connected for charge control module below with reference to the hardware schematic of implementation example figure 4
Case is illustrated: the connection switch K1 first between disconnected end charge inside chip and terminal system, no longer by terminal
Portion's charging chip is terminal system power supply, then connects the connection switch K2 of charger and end cell, is eventually by charger
Battery power supply is held, and connects the connection switch K3 between end cell and terminal system, is terminal system confession by end cell
Electricity, charging current at this time can keep initial large current charge electric current, to improve charge efficiency.
Optionally, charge control module 03 is also used to:
When the current charging voltage of end cell is greater than preset voltage threshold, it is from by terminal inner charging chip
The pattern switching of end cell charging is to constant-voltage charge mode.
If detecting that the voltage of end cell is greater than the preset voltage threshold, illustrate the true electricity of present terminal battery
Press it is very high, if continuing to be that will increase due to the excessively high bring risk of cell voltage if battery charges using high current, because
This, can be switched to constant-voltage charge charge mode for current constant current charging mode, to mention in the case where guaranteeing to charge safety
High recharge efficiency.
Optionally, device further include: judgment module 04.
Judgment module 04, for charger communication, judging whether charger supports perseverance after charger is connect with terminal
Current charge mode.
In embodiments of the present invention, for the support mode of electrolytic charger before charge, connect in charger and terminal
After connecing, by judgment module 04 and charger communication, judge whether charger supports constant current charging mode.In order to present terminal
It cooperates with charger, using suitable charging modes as terminal charge.Due to considering from charging rate, constant current mode can
Accelerate charging rate, reduces the charging time, therefore, judgment module 04 first determines whether charger supports constant current charging mode.
It certainly, in other embodiments, can also be according to different application scenarios to different charge modes or different charge conditions
Judged, to understand the detailed configuration situation of current charger or terminal.
Charge control module 03 is also used to when charger does not support constant current charging mode, in connection charger and terminal
The charging path between charging path and terminal inner chip and end cell between portion's chip, is filled by terminal inner
Electrical chip is end cell power supply, and is terminal system power supply by terminal inner charging chip.
In embodiments of the present invention, it if it is determined that module 04 judges that charger does not support constant current charging mode, then charges
Control module 03 will not pass through constant current charging mode be terminal charge, it is alternatively possible to use terminal inner charging chip for
End cell power supply.Concrete operations scheme is in charging path and the terminal connected between charger and terminal inner chip
Charging path between portion's chip and end cell is end cell power supply by terminal inner charging chip, and passes through terminal
Charge inside chip is terminal system power supply.
Concrete operations scheme is illustrated below with reference to the hardware schematic of implementation example figure 4: first by terminal inner
Chip is connect with charger, and charger exports normal charging voltage, is charged for terminal inner chip, and be closed terminal inner and fill
Connection switch K1 between electrical chip and terminal system is terminal system power supply by terminal inner charging chip, at this point, charging
The connection switch K2 of device and end cell, the connection switch K3 between end cell and terminal system are remained off.
Charge control module 03 is also used to connect charger and end cell when charger supports constant current charging mode
Between charging path, by constant current charging mode be end cell power.
In embodiments of the present invention, if it is determined that module 04 judges that charger supports constant current charging mode, then control of charging
Molding block 03 will be directly terminal charge by constant current charging mode.Concrete operations scheme is connection charger and end cell
Between charging path, by constant current charging mode be end cell power, and by end cell be terminal system power.
Concrete operations scheme is illustrated below with reference to the hardware schematic of implementation example figure 4: connection charger first
It is end cell power supply by charger with the connection switch K2 of end cell, and connects between end cell and terminal system
Connection switch K3, be that terminal system is powered by end cell, charging current at this time can keep initial high current to fill
Electric current, to improve charge efficiency.Also, the connection switch K1 between terminal inner charging chip and terminal system is kept at this time
It disconnects, is not terminal system power supply by terminal inner charging chip.
So far, by the agency of is over whole essential characteristics of the embodiment of the present invention, it should be noted that above content
It is all only one or more embodiments of the embodiment of the present invention, in other embodiments it is also an option that other embodiment party
Formula, it is any to be identical with the embodiment of the present invention or any group of the essential characteristic of similar embodiment and the embodiment of the present invention
It closes all within the protection scope of the embodiment of the present invention.
In addition, to achieve the above object, the invention also provides a kind of charge control method, in above-mentioned battery charge controller
Any embodiment be suitable in the charge control method of the embodiment of the present invention, details are not described herein, as shown in Figure 5, Figure 6,
The method comprising the steps of S201-S202:
S201, when terminal charge, according to preset detection cycle, detect the voltage of end cell.
S202, when the voltage of end cell be less than or equal to preset voltage threshold when, by constant current charging mode be eventually
Hold battery charging.
Optionally, when terminal charge, according to preset detection cycle, the voltage for detecting end cell includes step
S301-S302:
S301, under constant current charging mode, when the duration of charge of end cell reaches preset detection cycle, break
The charging path between charger and end cell is opened, and disconnected end battery is the access of terminal system power supply, passes through terminal
Charge inside chip is terminal system power supply.
It S302, is being during terminal system is powered, to detect the current voltage of end cell by terminal inner charging chip,
And the current voltage of end cell is compared with preset voltage threshold.
It optionally, include: between connection charger and end cell for end cell charging by constant current charging mode
Charging path switches back into constant current charging mode.
Optionally, this method further include:
When the voltage of end cell is greater than preset voltage threshold, the charging connected between charger and end cell is logical
Road is switched to constant-voltage charge mode.
Optionally, this method further includes step S401-S403:
S401, after charger is connect with terminal, with charger communication, judge whether charger supports constant-current charge mould
Formula.
S402, the charging when charger does not support constant current charging mode, between connection charger and terminal inner chip
Charging path between access and terminal inner chip and end cell is end cell by terminal inner charging chip
Power supply, and be terminal system power supply by terminal inner charging chip.
S403, when charger supports constant current charging mode, connect the charging path between charger and end cell, lead to
Constant current charging mode is crossed as end cell power supply.
Battery charge controller proposed by the present invention and method include: detection module every preset detection cycle, and detection is eventually
Hold the voltage of battery.Charge control module passes through constant current when the voltage of end cell is less than or equal to preset voltage threshold
Charge mode is end cell charging.Scheme can accurately detect battery in constant-current charging phase through the embodiment of the present invention
Real voltage extends the constant-current charge time to avoid the influence of cell voltage virtual height, improves charge efficiency and user experience
Sense.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of battery charge controller, which is characterized in that described device includes: detection module and charge control module；
The detection module, for according to preset detection cycle, detecting the voltage of the end cell when terminal charge；
The charge control module, for passing through when the voltage of the end cell is less than or equal to preset voltage threshold
Constant current charging mode is end cell charging；
Described device further include: judgment module；
The judgment module, for after the charger is connect with the terminal, and the charger communication is filled described in judgement
Whether electric appliance supports the constant current charging mode；
The charge control module is also used to connect the charging when the charger does not support the constant current charging mode
Filling between the charging path and the terminal inner chip and the end cell between device and the terminal inner chip
Electric pathway is end cell power supply by the terminal inner charging chip, and passes through the terminal inner charging chip
For terminal system power supply；
The charge control module is also used to connect the charger when the charger supports the constant current charging mode
It is end cell power supply by the constant current charging mode with the charging path between the end cell.
2. battery charge controller as described in claim 1, which is characterized in that the detection module when terminal charge, according to
Preset detection cycle, the voltage for detecting the end cell include:
Under constant current charging mode, when the duration of charge of the end cell reaches the preset detection cycle, enable
The charge control module disconnects the charging path between charger and the end cell, and disconnects the end cell as eventually
The access of end system power supply is terminal system power supply by terminal inner charging chip；
During being terminal system power supply by the terminal inner charging chip, the current voltage of end cell is detected,
And the current voltage of the end cell is compared with preset voltage threshold.
3. battery charge controller as claimed in claim 2, which is characterized in that the charge control module passes through constant-current charge mould
Formula is that end cell charging includes: the charging path connected between the charger and end cell, switches back into the perseverance
Current charge mode.
4. battery charge controller as claimed in claim 3, which is characterized in that the charge control module is also used to:
When the voltage of the end cell is greater than the preset voltage threshold, the charger and the end cell are connected
Between charging path, be switched to constant-voltage charge mode.
5. a kind of charge control method, which is characterized in that the described method includes:
When terminal charge, according to preset detection cycle, the current charging voltage of the end cell is detected；
It is the terminal by constant current charging mode when the voltage of the end cell is less than or equal to preset voltage threshold
Battery charging；
After the charger is connect with the terminal, with the charger communication, it is described to judge whether the charger is supported
Constant current charging mode；
When the charger does not support the constant current charging mode, connect between the charger and the terminal inner chip
Charging path and the terminal inner chip and the end cell between charging path, pass through the terminal inner
Charging chip is end cell power supply, and is terminal system power supply by the terminal inner charging chip；
When the charger supports the constant current charging mode, the charging between the charger and the end cell is connected
Access is end cell power supply by the constant current charging mode.
6. charge control method as claimed in claim 5, which is characterized in that described when terminal charge, preset detection week
Phase, the voltage for detecting the end cell include:
Under constant current charging mode, when the duration of charge of the end cell reaches the preset detection cycle, break
The charging path between charger and end cell is opened, and disconnects the access that the end cell is terminal system power supply, is passed through
Terminal inner charging chip is terminal system power supply；
During being terminal system power supply by the terminal inner charging chip, the current voltage of end cell is detected,
And the current voltage of the end cell is compared with preset voltage threshold.
7. charge control method as claimed in claim 6, which is characterized in that it is described by constant current charging mode be the terminal
Battery charging includes: the charging path between the connection charger and end cell, switches back into the constant current charging mode.
8. charge control method as claimed in claim 7, which is characterized in that the method also includes:
When the voltage of the end cell is greater than the preset voltage threshold, the charger and the end cell are connected
Between charging path, be switched to constant-voltage charge mode.
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| AU2018437253B2 (en) * | 2018-12-21 | 2021-03-11 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging control method, charging control device and computer storage medium |
| CN112018831B (en) * | 2019-05-28 | 2023-06-16 | 荣耀终端有限公司 | Charging control method, charging control device and electronic equipment |
| CN110299752A (en) * | 2019-06-04 | 2019-10-01 | 深圳传音控股股份有限公司 | A kind of charge control method, intelligent terminal and charging system |
| CN110739739B (en) * | 2019-10-25 | 2021-08-20 | Oppo广东移动通信有限公司 | Charging control method, charging control device and electronic device |
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| CN103730915A (en) * | 2012-10-10 | 2014-04-16 | 国基电子（上海）有限公司 | Charging control method and electronic equipment adopting method |
| CN104810872A (en) * | 2014-01-26 | 2015-07-29 | 深圳市京泉华科技股份有限公司 | Battery charging circuit and battery charging method |
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| CN103730915A (en) * | 2012-10-10 | 2014-04-16 | 国基电子（上海）有限公司 | Charging control method and electronic equipment adopting method |
| CN104810872A (en) * | 2014-01-26 | 2015-07-29 | 深圳市京泉华科技股份有限公司 | Battery charging circuit and battery charging method |
| CN104868540A (en) * | 2015-05-14 | 2015-08-26 | 武汉合康动力技术有限公司 | Implement method for multi-mode charging of lead-acid storage battery |
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