CN105978103A - Charging control device and method - Google Patents
Charging control device and method Download PDFInfo
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- CN105978103A CN105978103A CN201610512316.8A CN201610512316A CN105978103A CN 105978103 A CN105978103 A CN 105978103A CN 201610512316 A CN201610512316 A CN 201610512316A CN 105978103 A CN105978103 A CN 105978103A
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- end cell
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- charger
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- 238000007600 charging Methods 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000010277 constant-current charging Methods 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 54
- 238000004891 communication Methods 0.000 claims description 29
- 230000005611 electricity Effects 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 3
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- 230000002035 prolonged effect Effects 0.000 abstract 1
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- 238000010295 mobile communication Methods 0.000 description 6
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- 230000006399 behavior Effects 0.000 description 2
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- 238000010280 constant potential charging Methods 0.000 description 2
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- 238000011161 development Methods 0.000 description 2
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- 230000002441 reversible effect Effects 0.000 description 2
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- 230000000875 corresponding effect Effects 0.000 description 1
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- 239000010409 thin film Substances 0.000 description 1
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Classifications
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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
Abstract
The invention discloses a charging control device and method. The device comprises a detection module and a charging control module, wherein the detection module is used for, when a terminal is charged, detecting the voltage of a terminal battery according to a preset detection cycle; and the charging control module is used for, when the voltage of the terminal battery is smaller than or equal to a preset voltage threshold, charging the terminal battery via a constant current charging mode. By adopting the device and the method, the real voltage of the battery can be accurately detected at the constant current charging phase, so that the influence of over high battery voltage is avoided, the constant current charging time is prolonged, and the charging efficiency and the user experience are improved.
Description
Technical field
The present invention relates to terminal charge technical field, particularly relate to a kind of battery charge controller and method.
Background technology
In current terminal charge technology, along with the gradually development reducing charging heating technique so that at end
Bigger charging current can be used quickly to fill during end low pressure quick charge (i.e. constant-current charge)
Electricity.But during large current charge, due to factors such as charge circuit, battery protecting plate and the internal resistances of cell, can make
Obtaining cell voltage virtual height a lot, enter constant voltage charging phase too early, this not only have impact on charge efficiency, also
By the low charging experience sense of user.
Summary of the invention
Present invention is primarily targeted at a kind of battery charge controller of proposition and method, it is possible at constant-current charge
Stage accurately detects the real voltage of battery, thus avoids the impact of cell voltage virtual height, extends constant current
In the charging interval, improve charge efficiency and Consumer's Experience sense.
For achieving the above object, a kind of battery charge controller that the present invention provides, described device includes: inspection
Survey module and charge control module.
Detection module, for when terminal charge, according to the default detection cycle, detection end cell
Current charging voltage.
Charge control module, is used for when the voltage of end cell is less than or equal to the voltage threshold preset,
It is that end cell charges by constant current charging mode.
Alternatively, detection module is when terminal charge, according to the default detection cycle, detects end cell
Voltage include:
Under constant current charging mode, when the duration of charge of end cell reaches the default detection cycle,
Make charge control module disconnect the charging path between charger and end cell, and disconnected end battery is
The path that terminal system is powered, is that terminal system is powered by terminal inner charging chip.
It is being that terminal system is powered period by terminal inner charging chip, the current electricity of detection end cell
Pressure, and the current voltage of end cell is compared with the voltage threshold preset.
Alternatively, charge control module is that end cell charging includes by constant current charging mode: connects and fills
Charging path between electrical equipment and end cell, switches back into constant current charging mode.
Alternatively, charge control module is additionally operable to:
When the voltage of end cell is more than the voltage threshold preset, connect between charger and end cell
Charging path, be switched to constant-voltage charge pattern.
Alternatively, this device also includes: judge module.
Judge module, for after charger is connected with terminal, with charger communication, it is judged that charger is
No support constant current charging mode.
Charge control module, is additionally operable to when charger does not supports constant current charging mode, connect charger with
Charging between charging path between terminal inner chip, and terminal inner chip and end cell is led to
Road, is that end cell is powered by terminal inner charging chip, and is eventually by terminal inner charging chip
End system is powered.
Charge control module, is additionally operable to, when constant current charging mode supported by charger, connect charger and end
Charging path between end-cell, is that end cell is powered by constant current charging mode.
Additionally, for achieving the above object, the invention allows for a kind of charge control method, the method bag
Include:
When terminal charge, according to default detection cycle, the current charging voltage of detection end cell.
When the voltage of end cell is less than or equal to the voltage threshold preset, by constant current charging mode it is
End cell charges.
Alternatively, when terminal charge, according to default detection cycle, the voltage bag of detection end cell
Include:
Under constant current charging mode, when the duration of charge of end cell reaches the default detection cycle,
Disconnect the charging path between charger and end cell, and disconnected end battery is that terminal system is powered
Path, is that terminal system is powered by terminal inner charging chip.
It is being that terminal system is powered period by terminal inner charging chip, the current electricity of detection end cell
Pressure, and the current voltage of end cell is compared with the voltage threshold preset.
Alternatively, it is that end cell charging includes by constant current charging mode: connect charger and terminal electricity
Charging path between pond, switches back into constant current charging mode.
Alternatively, the method also includes:
When the voltage of end cell is more than the voltage threshold preset, connect between charger and end cell
Charging path, be switched to constant-voltage charge pattern.
Alternatively, the method also includes:
After charger is connected with terminal, with charger communication, it is judged that whether charger supports constant-current charge
Pattern.
When charger does not supports constant current charging mode, connect filling between charger and terminal inner chip
Charging path between electric pathway, and terminal inner chip and end cell, is charged by terminal inner
Chip is that end cell is powered, and is that terminal system is powered by terminal inner charging chip.
When constant current charging mode supported by charger, connect the charging path between charger and end cell,
It is that end cell is powered by constant current charging mode.
The present invention propose battery charge controller and method include: detection module when terminal charge, according to
The detection cycle preset, the voltage of detection end cell.Charge control module is little when the voltage of end cell
In or equal to preset voltage threshold time, by constant current charging mode be end cell charge.By this
Bright embodiment scheme can accurately detect the real voltage of battery at constant-current charging phase, thus avoids electricity
The impact of cell voltage virtual height, extends the constant-current charge time, improves charge efficiency and Consumer's Experience sense.
Accompanying drawing explanation
Fig. 1 is the hardware architecture diagram realizing each one optional mobile terminal of embodiment of 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 frame chart 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 realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
Describe referring now to accompanying drawing and realize the present invention one optional mobile terminal of each embodiment.Rear
In continuous description, use such as " module ", " parts " or the suffix of " unit " for representing element
Only for the explanation of the beneficially present invention, itself do not has specific meaning.Therefore, " module " and " portion
Part " can mixedly use.
Mobile terminal can be implemented in a variety of manners.Such as, the terminal described in the present invention can include
(individual digital helps for such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA
Reason), PAD (panel computer), PMP (portable media player), the mobile end of guider etc.
The fixed terminal of end and such as numeral TV, desk computer etc..Hereinafter it is assumed that terminal is mobile whole
End.However, it will be understood by those skilled in the art that, in addition to being used in particular for the element of mobile purpose,
Structure according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is the hardware configuration signal of the optional mobile terminal realizing each embodiment of the present invention.
Mobile terminal 100 can include wireless communication unit 110, A/V (audio/video) input block 120,
User input unit 130, sensing unit 140, output unit 150, memorizer 160, interface unit 170,
Controller 180 and power subsystem 190 etc..Fig. 1 shows the mobile terminal with various assembly, but should
It is understood by, it is not required that implement all assemblies illustrated.Can alternatively implement more or less of group
Part.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assembly, and it allows mobile terminal 100 with wireless
Radio communication between communication system or network.Such as, wireless communication unit can include broadcast reception
Module 111, mobile communication module 112, wireless Internet module 113, short range communication module 114 and position letter
At least one in breath module 115.
Broadcast reception module 111 via broadcast channel from external broadcasting management server receive broadcast singal and/
Or broadcast related information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast control services
Device can be to generate and send generation before broadcast singal and/or the server of broadcast related information or reception
Broadcast singal and/or broadcast related information and send it to the server of terminal.Broadcast singal is permissible
Including TV broadcast singal, radio signals, data broadcasting signal etc..And, broadcast singal can
To farther include the broadcast singal combined with TV or radio signals.Broadcast related information can also
There is provided 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, and such as, it can be wide with digital multimedia
Broadcast the electronic program guides (EPG) of (DMB), the electronic service guidebooks of digital video broadcast-handheld (DVB-H)
Etc. (ESG) form and exist.Broadcast reception module 111 can be by using various types of broadcast system
System receives signal broadcast.Especially, broadcast reception module 111 can by use such as multimedia broadcasting-
Ground (DMB-T), DMB-satellite (DMB-S), DVB-hand-held (DVB-H),
Forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service (ISDB-T)
Etc. digit broadcasting system receive digital broadcasting.Broadcast reception module 111 may be constructed such that and is adapted to provide for
The various broadcast systems of broadcast singal and above-mentioned digit broadcasting system.Receive via broadcast reception module 111
Broadcast singal and/or broadcast related information can be stored in memorizer 160 (or other type of storage is situated between
Matter) in.
Mobile communication module 112 send radio signals to base station (such as, access point, node B etc.),
In exterior terminal and server at least one and/or receive from it radio signal.Such radio
Signal can include voice call signal, video calling signal or according to text and/or Multimedia Message
The various types of data sent and/or receive.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can internal or
Externally it is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can include WLAN (nothing
Line LAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave access), HSDPA (at a high speed
Downlink packets accesses) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology
Including bluetoothTM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybeeTM
Etc..
Positional information module 115 is the module of positional information for checking or obtain mobile terminal.Position is believed
The typical case of breath module is GPS (global positioning system).According to current technology, GPS module 115 calculates
From the range information of three or more satellites and correct time information and for the Information application calculated
Triangulation, thus according to longitude, latitude and highly accurately calculating three-dimensional current location information.When
Before, use three satellites and by using other one for calculating the method for position and temporal information
Satellite corrects the position and the error of temporal information calculated.Additionally, GPS module 115 can be by real time
Ground Continuous plus current location information calculates velocity information.
A/V input block 120 is used for receiving audio or video signal.A/V input block 120 can include phase
Machine 121 and mike 1220, camera 121 is caught by image in Video Capture pattern or image capture mode
The view data of the static images or video that obtain device acquisition processes.Picture frame after process can show
Show on display unit 151.Picture frame after camera 121 processes can be stored in memorizer 160 (or other
Storage medium) in or be transmitted via wireless communication unit 110, can carry according to the structure of mobile terminal
For two or more cameras 1210.Mike 122 can be known at telephone calling model, logging mode, voice
Other pattern etc. operational mode receives sound (voice data) via mike, and can be by such sound
Sound is processed as voice data.Audio frequency (voice) data after process can turn in the case of telephone calling model
It is changed to be sent to the form output of mobile communication base station via mobile communication module 112.Mike 122 can
Eliminate (or suppression) algorithm with the various types of noises of enforcement and in reception and send audio frequency letter to eliminate (or suppression)
The noise produced during number or interference.
It is mobile to control that user input unit 130 can generate key input data according to the order of user's input
The various operations of terminal.User input unit 130 allows user to input various types of information, and permissible
Including keyboard, metal dome, touch pad (such as, detection due to touched and cause resistance, pressure, electricity
The sensitive component of change held etc.), roller, rocking bar etc..Especially, when touch pad as a layer
When being superimposed upon on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (such as, mobile terminal 100 open or
Closed mode), the position of mobile terminal 100, user is for the contact (that is, touch input) of mobile terminal 100
Presence or absence, the orientation of mobile terminal 100, the acceleration or deceleration of mobile terminal 100 move and direction etc.,
And generate the order or signal being used for controlling the operation of mobile terminal 100.Such as, when mobile terminal 100
When being embodied as sliding-type mobile phone, it is to engage on or off that sensing unit 140 can sense this sliding-type number
Close.It addition, sensing unit 140 can detect whether power subsystem 190 provides electric power or interface unit 170
Whether couple with external device (ED).It is tactile that sensing unit 140 can include that proximity transducer 1410 will combine below
Touch screen this is described.
Interface unit 170 is used as at least one external device (ED) and is connected connecing of can passing through with mobile terminal 100
Mouthful.Such as, external device (ED) can include wired or wireless head-band earphone port, external power source (or battery
Charger) port, wired or wireless FPDP, memory card port, for connect there is identification module
The port of device, audio frequency input/output (I/O) port, video i/o port, ear port etc..Identify mould
Block can be that storage is for verifying that user uses the various information of mobile terminal 100 and can include user
Identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc..It addition,
The device (hereinafter referred to as " identifying device ") with identification module can be to take the form of smart card, therefore, knows
Other device can be connected with mobile terminal 100 via port or other attachment means.Interface unit 170 is permissible
For receiving from the input (such as, data message, electric power etc.) of external device (ED) and defeated by receive
Enter to be transferred to the one or more elements in mobile terminal 100 or may be used in mobile terminal and outside
Data are transmitted between device.
It addition, when mobile terminal 100 is connected with external base, interface unit 170 can serve as allowing to lead to
Cross it provide the path of mobile terminal 100 by electric power from base or can serve as allowing to input from base
Various command signals be transferred to the path of mobile terminal by it.Various command signals from base input
Or electric power may serve as identifying whether mobile terminal is accurately fitted within the signal on base.Output is single
Unit 150 be configured to vision, audio frequency and/or tactile manner provide output signal (such as, audio signal,
Video signal, alarm signal, vibration signal etc.).Output unit 150 can include display unit 151,
Dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 100.Such as, mobile terminal is worked as
100 when being in telephone calling model, display unit 151 can show and call or other communicate (such as, civilian
This information receiving and transmitting, multimedia file download etc.) relevant user interface (UI) or graphic user interface
(GUI).When mobile terminal 100 is in video calling pattern or image capture mode, display unit 151
Can show capture image and/or the image of reception, illustrate video or image and the UI of correlation function or
GUI etc..
Meanwhile, when display unit 151 and touch pad the most superposed on one another to form touch screen time, aobvious
Show that unit 151 can serve as input equipment and output device.Display unit 151 can include liquid crystal display
(LCD), thin film transistor (TFT) LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexibility show
Show at least one in device, three-dimensional (3D) display etc..Some in these display may be constructed such that
Transparence is to allow user to watch from outside, and this is properly termed as transparent display, typical transparent display
Can for example, TOLED (transparent organic light emitting diode) display etc..According to the specific enforcement wanted
Mode, mobile terminal 100 can include two or more display units (or other display device), such as,
Mobile terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can
For detecting touch input pressure and touch input position and touch input area.
Dio Output Modules 152 can be in call signal at mobile terminal and receive pattern, call mode, note
Time under the isotypes such as record pattern, speech recognition mode, broadcast reception mode, wireless communication unit 110 is connect
Receive or in memorizer 160 storage voice data transducing audio signal and be output as sound.And
And, the audio frequency that dio Output Modules 152 can provide relevant to the specific function of mobile terminal 100 execution is defeated
Go out (such as, call signal receives sound, message sink sound etc.).Dio Output Modules 152 can wrap
Include speaker, buzzer etc..
Alarm unit 153 can provide output to notify event to mobile terminal 100.Typically
Event can include calling reception, message sink, key signals input, touch input etc..Except audio frequency
Or outside video frequency output, alarm unit 153 can provide in a different manner and export sending out with notification event
Raw.Such as, alarm unit 153 can with vibration form provide output, when receive calling, message or
During some other entrance communication (incomingcommunication), alarm unit 153 can provide sense of touch defeated
Go out (that is, vibration) to notify to user.By providing such sense of touch to export, even if in the shifting of user
When mobile phone is in the pocket of user, user also is able to identify the generation of various event.Alarm unit
The output of 153 generations that notification event can also be provided via display unit 151 or dio Output Modules 152.
Memorizer 160 can store the process performed by controller 180 and control the software program etc. of operation
Deng, or can temporarily store oneself through output maybe will export data (such as, telephone directory, message,
Still image, video etc.).And, memorizer 160 can store about when touch is applied to touch screen
The vibration of the various modes of output and the data of audio signal.
Memorizer 160 can include the storage medium of at least one type, described storage medium include flash memory,
Hard disk, multimedia card, card-type memorizer (such as, SD or DX memorizer etc.), random access storage device
(RAM), static random-access memory (SRAM), read only memory (ROM), electrically erasable
Read only memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, light
Dish etc..And, mobile terminal 100 can be connected the storage function performing memorizer 160 with by network
Network storage device cooperation.
Controller 180 generally controls the overall operation of mobile terminal.Such as, controller 180 performs and voice
Control that call, data communication, video calling etc. are relevant and process.It addition, controller 180 can wrap
Including the multi-media module 1810 for reproducing (or playback) multi-medium data, multi-media module 1810 can construct
In controller 180, or it is so structured that separate with controller 180.Controller 180 can perform pattern
Identifying processing, with the handwriting input performed on the touchscreen or picture are drawn input be identified as character or
Image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides behaviour
Make the suitable electric power needed for each element and assembly.
Various embodiment described herein can be to use such as computer software, hardware or its any group
The computer-readable medium closed is implemented.Implementing for hardware, embodiment described herein can pass through
Use application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device
(DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, control
Device, microcontroller, microprocessor, it is designed to perform in the electronic unit of function described herein extremely
Few one is implemented, and in some cases, such embodiment can be implemented in controller 180.Right
Implementing in software, the embodiment of such as process or function can perform at least one function or behaviour with permission
The single software module made is implemented.Software code can be by writing with any suitable programming language
Software application (or program) is implemented, and software code can be stored in memorizer 160 and by controlling
Device 180 performs.
So far, oneself is through describing mobile terminal according to its function.Below, for the sake of brevity, will describe
Various types of mobile terminals of such as folded form, board-type, oscillating-type, slide type mobile terminal etc.
In slide type mobile terminal as example.Therefore, the present invention can be applied to any kind of mobile whole
End, and it is not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 100 may be constructed such that and utilizes via frame or packet transmission data
The most wired and wireless communication system and satellite-based communication system operate.
The communication system being wherein operable to according to the mobile terminal of the present invention is described referring now to Fig. 2.
Such communication system can use different air interfaces and/or physical layer.Such as, by communication system
The air interface that system uses includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA
(CDMA) move lead to UMTS (UMTS) (especially, Long Term Evolution (LTE)), the whole world
Communication system (GSM) etc..As non-limiting example, explained below relates to cdma communication system, but
It is that such teaching is equally applicable to other type of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 100, multiple base station
(BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to
Interface is formed with Public Switched Telephony Network (PSTN) 290.MSC280 is also structured to and can be via returning
Journey circuit is couple to the BSC275 of base station 270 and forms interface.If the interface that back haul link can be known according to Ganji
In any one construct, described interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL,
ADSL or xDSL.It will be appreciated that system as shown in Figure 2 can include multiple BSC2750.
Each BS270 can service one or more subregion (or region), by multidirectional antenna or sensing certain party
To antenna cover each subregion radially away from BS270.Or, each subregion can be by for dividing
Two or more antennas that collection receives cover.Each BS270 may be constructed such that support multiple frequencies distribution,
And the distribution of each frequency has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).
Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station
Transceiver subsystem (BTS) or other equivalent terms.In this case, term " base station " can be used
In broadly representing single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".
Or, each subregion of specific BS270 can be referred to as multiple cellular station.
As shown in Figure 2, broadcast singal is sent in system the shifting operated by broadcsting transmitter (BT) 295
Dynamic terminal 100.Broadcast reception module 111 is arranged on mobile terminal 100 and sentences reception as shown in Figure 1
The broadcast singal sent by BT295.In fig. 2 it is shown that several global positioning systems (GPS) satellite 300.
Satellite 300 helps to position at least one in multiple mobile terminals 100.
In fig. 2, depict multiple satellite 300, it is understood that be, it is possible to use any number of defend
Star obtains useful location information.GPS module 115 is generally configured to and satellite 300 as shown in Figure 1
Coordinate the location information wanted with acquisition.Substitute GPS tracking technique or outside GPS tracking technique, can
To use other technology of the position that can follow the tracks of mobile terminal.It addition, at least one gps satellite 300 can
Optionally or additionally to process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives from various mobile terminals 100
Reverse link signal.Mobile terminal 100 generally participates in call, information receiving and transmitting communicates with other type of.Special
The each reverse link signal determining base station 270 reception is processed in specific BS270.The data obtained
It is forwarded to the BSC275 being correlated with.BSC provides call resource distribution and the soft handover included between BS270
The mobile management function of the coordination of process.The data received also are routed to MSC280 by BSC275, its
Extra route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with
MSC280 forms interface, MSC Yu BSC275 forms interface, and BSC275 correspondingly controls BS270
Forward link signals to be sent to mobile terminal 100.
Based on above-mentioned optional mobile terminal hardware configuration and communication system, propose the inventive method each
Embodiment.
The gradually development of current terminal charge technology so that (i.e. constant current is filled in terminal low pressure quick charge
Electricity) during bigger charging current can be used to carry out quick charge.But during large current charge, due to
The factors such as charge circuit, battery protecting plate and the internal resistance of cell, when can make large current charge, cell voltage is empty
Much higher, enter constant voltage charging phase too early, affect the constant-current charge time.If can be when constant-current charge
Battery real voltage accurately detected, it is possible to solve this problem, extend the constant-current charge time, accelerate
Charging rate, reduces the charging interval, and improves the charging experience sense of user.
For achieving the above object, embodiments provide a kind of battery charge controller 01, such as Fig. 3,
Shown in Fig. 4, described device includes: detection module 02 and charge control module 03.The embodiment of the present invention
Battery charge controller 01 can apply to as implemented the master in the terminal charge hardware elementary diagram shown in illustration 4
In control chip, it is also possible to independent of charger and terminal, carrying out as single battery charge controller should
With.
Detection module 02, for when terminal charge, according to the default detection cycle, detects end cell
Voltage.
In embodiments of the present invention, in order to obtain the real voltage of end cell in time, by detection
The voltage of end cell is periodically detected by module 02 so that timely to the cell voltage of each period
Understand, it is to avoid the cell voltage produced due to factors such as charge circuit, battery protecting plate and the internal resistances of cell
The illusion that virtual height the causes impact on terminal charge electric current.Here this detection cycle preset can be according to not
With application scenarios self-defining, such as, according to terminal configuring condition, the size etc. of charging current, right
Concrete numerical value does not limits.And in embodiments of the present invention, device is specifically detected for cell voltage
Not limiting with method, any method of battery voltage detection that is capable of is all in the embodiment of the present invention
Within protection domain.
It addition, in other embodiments, according to different application scenarios, detection module 02 is to end cell
The voltage detecting method that can also use in real time detection, the real voltage of end cell can be understood the moment,
Improve the monitoring accuracy of charging voltage.Or use the form of pre-alert notification, when the voltage of end cell reaches
During to a certain preset voltage value, triggering warning module and/or notification module, notice detection module 02 is current eventually
The voltage of end-cell has reached default magnitude of voltage, so that detection module 02 uses corresponding measure in time.
Alternatively, detection module 02 is when terminal charge, according to default detection cycle, detection terminal electricity
The voltage in pond includes step S101-S102:
S101, under constant current charging mode, when the duration of charge of end cell reaches default detection
During the cycle, when the duration of charge of end cell reaches the default detection cycle, order charging controls mould
Block 03 disconnects the charging path between charger and end cell, and disconnected end battery is that terminal system supplies
The path of electricity, is that terminal system is powered by terminal inner charging chip.
In embodiments of the present invention, support constant current charging mode at current charger, and pass through constant-current charge
Pattern is in terminal battery charging process, when the duration of charge of end cell reaches default detection week
During the phase, if detection module 02 wants to detect the current voltage of end cell, in order to make voltage detecting more pacify
Entirely, more accurately, need the constant-current charge path making charge control module 03 temporarily disconnect current charger,
Charged for terminal inner chip with nominal charging voltage by charger, and by terminal inner charging chip
Power for terminal system.Here, the time temporarily disconnected can be according to different scene self-definings, example
As, according to the speed of terminal processes speed, according to charger and/or the heat condition etc. of present terminal.
Below in conjunction with embodiment Fig. 4 hardware schematic for charge control module disconnect charger constant current
The scheme of charging path illustrates: first disconnect the connecting valve K2 of charger and end cell, stops
It is that end cell is powered by charger, and the connecting valve K3 between disconnected end battery and terminal system,
Stopping by end cell is that terminal system is powered, then Guan Bi terminal inner charging chip and terminal system
Between connecting valve K1, be that terminal system is powered by terminal inner charging chip, charger export just
Often voltage, powers for terminal inner charging chip, charge inside chip does not gives to system power supply, battery
System power supply, now end cell does not the most charge and does not the most discharge, and the cell voltage detected is close to opening
Road voltage.
S102, it is being that terminal system is powered period by terminal inner charging chip, detection end cell
Current voltage, and the current voltage of end cell is compared with the voltage threshold preset.
In embodiments of the present invention, after making charge control module 03 disconnect the constant-current charge path of charger,
Just voltage detecting, and the cell voltage that will detect can be carried out with pairing approximation end cell under open circuit
Comparing with default voltage threshold, to judge the size of present terminal cell voltage, this is preset here
Voltage threshold can be generally the critical voltage being transformed into constant-voltage charge from constant-current charge, its concrete numerical value
It is not particularly limited, can be according to different application scenarios self-definings, such as, charger and terminal
Self configuring condition etc. is defined.If be detected that what the voltage of end cell was preset less than or equal to this
Voltage threshold, illustrates that the real voltage of present terminal battery is the highest, can maintain present charge state,
If be detected that the voltage threshold that the voltage of end cell is preset more than this, then present terminal battery is described
Real voltage is the highest, needs to change the safety that present charge state brings to avoid voltage persistently to increase
Hidden danger.
Charge control module 03, is used for when the voltage of end cell is less than or equal to the voltage threshold preset,
It is that end cell charges by constant current charging mode.
In embodiments of the present invention, the true of present terminal battery is detected by above-mentioned detection module 02
After voltage status, just can take accordingly for current charge mode according to concrete judged result
Measure, with ensure charging safety in the case of, improve charge efficiency.
If the voltage threshold that the voltage of end cell is preset less than or equal to this, present terminal battery is described
Real voltage the highest, constant-current charge charge mode can be continued to, i.e. can continue with relatively
Big charging current is terminal charge, thus improves charge efficiency and Consumer's Experience sense.
Alternatively, charge control module 03 is that end cell charging includes by constant current charging mode: connect
Charging path between charger and end cell, switches back into constant current charging mode.
In embodiments of the present invention, charge control module 03 is that end cell charges by constant current charging mode
Concrete scheme be: again the charging path between charger and end cell is coupled together, from above-mentioned
Charger be that terminal inner charging chip is powered, by charge inside chip to the State Transferring of system power supply
To being terminal battery terminal by charger, and be the state that terminal system is powered by terminal battery, continue with
The big charging current preset, charges with constant current charging mode for end cell.
Hardware schematic below in conjunction with embodiment Fig. 4 connects constant-current charge path for charge control module
Detailed protocol illustrate: the first connection between disconnected end charge inside chip and terminal system is opened
Close K1, be no longer that terminal system is powered by terminal inner charging chip, then connection charger and terminal
The connecting valve K2 of battery, is that end cell is powered by charger, and connects end cell and terminal system
Connecting valve K3 between system, is that terminal system is powered by end cell, and charging current now can
With the large current charge electric current that holding is initial, to improve charge efficiency.
Alternatively, charge control module 03 is additionally operable to:
When the current charging voltage of end cell is more than the voltage threshold preset, fill from by terminal inner
Electrical chip is that the pattern of end cell charging is switched to constant-voltage charge pattern.
If be detected that the voltage threshold that the voltage of end cell is preset more than this, present terminal battery is described
Real voltage the highest, if continue with big electric current for battery charge; could increase due to cell voltage
The too high danger brought, therefore, it can current constant current charging mode is switched to constant-voltage charge charging
Pattern, in the case of ensureing charging safety, to improve charge efficiency.
Alternatively, this device also includes: judge module 04.
Judge module 04, for after charger is connected with terminal, with charger communication, it is judged that charger
Whether support constant current charging mode.
In embodiments of the present invention, for the support pattern of electrolytic charger before charge, at charger
After being connected with terminal, by judge module 04 and charger communication, it is judged that whether charger supports that constant current is filled
Power mode.So that present terminal cooperates with charger, with suitable charging modes as terminal charge.
Owing to considering on charging rate, constant current mode can accelerate charging rate, reduces the charging interval, therefore,
Judge module 04 first determines whether whether charger supports constant current charging mode.Certainly, in other embodiments,
Can also be according to different application scenarios to different charge modes, or different charge conditions judges,
To understand current charger or the detailed configuration situation of terminal.
Charge control module 03, is additionally operable to when charger does not supports constant current charging mode, connects charger
And the charging between the charging path between terminal inner chip, and terminal inner chip and end cell
Path, is that end cell is powered by terminal inner charging chip, and by terminal inner charging chip is
Terminal system is powered.
In embodiments of the present invention, if it is determined that module 04 judges that constant current charging mode do not supported by charger,
Then charge control module 03 will not pass through constant current charging mode is terminal charge, it is alternatively possible to use
Terminal inner charging chip is that end cell is powered.Concrete operations scheme is to connect charger and terminal inner
Charging path between charging path between chip, and terminal inner chip and end cell, passes through
Terminal inner charging chip is that end cell is powered, and is that terminal system supplies by terminal inner charging chip
Electricity.
Hardware schematic below in conjunction with embodiment Fig. 4 illustrates for concrete operations scheme: first will
Terminal inner chip is connected with charger, and charger exports normal charging voltage, for terminal inner chip
Charging, and close the connecting valve K1 between terminal inner charging chip and terminal system, by terminal
Portion's charging chip is that terminal system is powered, now, and charger and the connecting valve K2 of end cell, terminal
Connecting valve K3 between battery and terminal system all remains off.
Charge control module 03, be additionally operable to when charger support constant current charging mode time, connect charger with
Charging path between end cell, is that end cell is powered by constant current charging mode.
In embodiments of the present invention, if it is determined that module 04 judges that constant current charging mode supported by charger,
Then charge control module 03 will be directly terminal charge by constant current charging mode.Concrete operations scheme is
Connect the charging path between charger and end cell, be that end cell is powered by constant current charging mode,
And be that terminal system is powered by end cell.
Hardware schematic below in conjunction with embodiment Fig. 4 illustrates for concrete operations scheme: first connect
Meet the connecting valve K2 of charger and end cell, be that end cell is powered by charger, and connect end
Connecting valve K3 between end-cell and terminal system, is that terminal system is powered by end cell, this
Time charging current can keep initial large current charge electric current, to improve charge efficiency.Further, this
Time keep the connecting valve K1 between terminal inner charging chip and terminal system to disconnect, by terminal
Portion's charging chip is that terminal system is powered.
So far, by the agency of is over whole basic features of embodiment of the present invention scheme, it should be noted that
Foregoing is the most only one or more embodiments of the embodiment of the present invention, the most also may be used
To select other embodiment, any and same or analogous embodiment of the embodiment of the present invention, and
The combination in any of the basic feature of the embodiment of the present invention is all within the protection domain of the embodiment of the present invention.
Additionally, for achieving the above object, the invention allows for a kind of charge control method, above-mentioned charging
Any embodiment controlled in device is suitable in the charge control method of the embodiment of the present invention, at this not
Repeat again, as shown in Figure 5, Figure 6, the method comprising the steps of S201-S202:
S201, when terminal charge, according to the default detection cycle, the voltage of detection end cell.
S202, when end cell voltage less than or equal to preset voltage threshold time, pass through constant-current charge
Pattern is end cell charging.
Alternatively, when terminal charge, according to default detection cycle, the voltage bag of detection end cell
Include step S301-S302:
S301, under constant current charging mode, when the duration of charge of end cell reaches default detection
During the cycle, disconnect the charging path between charger and end cell, and disconnected end battery is terminal system
The path of system power supply, is that terminal system is powered by terminal inner charging chip.
S302, it is being that terminal system is powered period by terminal inner charging chip, detection end cell
Current voltage, and the current voltage of end cell is compared with the voltage threshold preset.
Alternatively, it is that end cell charging includes by constant current charging mode: connect charger and terminal electricity
Charging path between pond, switches back into constant current charging mode.
Alternatively, the method also includes:
When the voltage of end cell is more than the voltage threshold preset, connect between charger and end cell
Charging path, be switched to constant-voltage charge pattern.
Alternatively, the method also includes step S401-S403:
S401, after charger is connected with terminal, with charger communication, it is judged that whether charger supports perseverance
Current charge pattern.
S402, when charger does not supports constant current charging mode, connect charger and terminal inner chip it
Between charging path, and the charging path between terminal inner chip and end cell, by terminal
Portion's charging chip is that end cell is powered, and is that terminal system is powered by terminal inner charging chip.
S403, when constant current charging mode supported by charger, connect filling between charger and end cell
Electric pathway, is that end cell is powered by constant current charging mode.
The present invention propose battery charge controller and method include: detection module every the default detection cycle,
The voltage of detection end cell.Charge control module is when the voltage of end cell is less than or equal to the electricity preset
During pressure threshold value, it is that end cell charges by constant current charging mode.Can by embodiment of the present invention scheme
The real voltage of battery accurately detected at constant-current charging phase, thus avoid the impact of cell voltage virtual height,
Extend the constant-current charge time, improve charge efficiency and Consumer's Experience sense.
It should be noted that in this article, term " include ", " comprising " or its any other variant
Be intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Person's device not only includes those key elements, but also includes other key elements being not expressly set out, or also
Including the key element intrinsic for this process, method, article or device.In the feelings not having more restriction
Under condition, statement " including ... " key element limited, it is not excluded that include this key element process,
Method, article or device there is also other identical element.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive above-mentioned
Embodiment method can add the mode of required general hardware platform by software and realize, naturally it is also possible to logical
Cross hardware, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the present invention's
The part that prior art is contributed by technical scheme the most in other words can be with the form body of software product
Revealing to come, this computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, light
Dish) in, including some instructions with so that a station terminal equipment (can be mobile phone, computer, service
Device, air-conditioner, or the network equipment etc.) perform the method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a battery charge controller, it is characterised in that described device includes: detection module and charging control
Molding block；
Described detection module, for when terminal charge, according to the default detection cycle, detects described end
The voltage of end-cell；
Described charge control module, for the voltage when described end cell less than or equal to the voltage preset
During threshold value, it is that described end cell charges by constant current charging mode.
2. charge control method as claimed in claim 1, it is characterised in that described detection module is when eventually
During end charging, according to the default detection cycle, the voltage detecting described end cell includes:
Under constant current charging mode, when the duration of charge of described end cell reaches described default inspection
During the survey cycle, described charge control module is made to disconnect the charging path between charger and described end cell,
And to disconnect described end cell be the path that terminal system is powered, it is described by terminal inner charging chip
Terminal system is powered；
It is being that described terminal system is powered period by described terminal inner charging chip, is detecting end cell
Current voltage, and by the current voltage of described end cell with preset voltage threshold compare.
3. charge control method as claimed in claim 2, it is characterised in that described charge control module
Be that the charging of described end cell includes by constant current charging mode: connect described charger and end cell it
Between charging path, switch back into described constant current charging mode.
4. charge control method as claimed in claim 3, it is characterised in that described charge control module
It is additionally operable to:
When the voltage of described end cell is more than described default voltage threshold, connect described charger with
Charging path between described end cell, is switched to constant-voltage charge pattern.
5. charge control method as claimed in claim 1, it is characterised in that described device also includes:
Judge module；
Described judge module, for after described charger is connected with described terminal, leads to described charger
Letter, it is judged that whether described charger supports described constant current charging mode；
Described charge control module, is additionally operable to when described charger does not supports described constant current charging mode,
Connect the charging path between described charger and described terminal inner chip, and described terminal inner core
Charging path between sheet and described end cell, is described terminal by described terminal inner charging chip
Battery is powered, and is that terminal system is powered by described terminal inner charging chip；
Described charge control module, is additionally operable to when described constant current charging mode supported by described charger, even
Connect the charging path between described charger and described end cell, be institute by described constant current charging mode
State end cell to power.
6. a charge control method, it is characterised in that described method includes:
When terminal charge, according to the default detection cycle, detect the current charged electrical of described end cell
Pressure；
When the voltage of described end cell is less than or equal to the voltage threshold preset, by constant-current charge mould
Formula is the charging of described end cell.
7. charge control method as claimed in claim 6, it is characterised in that described when terminal charge,
In the detection cycle preset, the voltage detecting described end cell includes:
Under constant current charging mode, when the duration of charge of described end cell reaches described default inspection
During the survey cycle, disconnect the charging path between charger and end cell, and disconnect described end cell and be
The path that terminal system is powered, is that described terminal system is powered by terminal inner charging chip；
It is being that described terminal system is powered period by described terminal inner charging chip, is detecting end cell
Current voltage, and by the current voltage of described end cell with preset voltage threshold compare.
8. charge control method as claimed in claim 7, it is characterised in that described in pass through constant-current charge
Pattern is that the charging of described end cell includes: connect the charging path between described charger and end cell,
Switch back into described constant current charging mode.
9. charge control method as claimed in claim 8, it is characterised in that described method also includes:
When the voltage of described end cell is more than described default voltage threshold, connect described charger with
Charging path between described end cell, is switched to constant-voltage charge pattern.
10. charge control method as claimed in claim 6, it is characterised in that described method also includes:
After described charger is connected with described terminal, with described charger communication, it is judged that described charger
Whether support described constant current charging mode；
When described charger does not supports described constant current charging mode, connect described charger and described terminal
Filling between the charging path between inside chip, and described terminal inner chip and described end cell
Electric pathway, is that described end cell is powered by described terminal inner charging chip, and by described terminal
Charge inside chip is that terminal system is powered；
When described constant current charging mode supported by described charger, connect described charger and described terminal electricity
Charging path between pond, is that described end cell is powered by described constant current charging mode.
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