CN110401242A - More battery concurrent charging circuits, method and wearable device with the circuit - Google Patents
More battery concurrent charging circuits, method and wearable device with the circuit Download PDFInfo
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- CN110401242A CN110401242A CN201910683514.4A CN201910683514A CN110401242A CN 110401242 A CN110401242 A CN 110401242A CN 201910683514 A CN201910683514 A CN 201910683514A CN 110401242 A CN110401242 A CN 110401242A
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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
This application involves a kind of more battery parallel circuits, charging method and wearable devices, including charge controller, current control module, current detection module and battery module；The output end of the charge controller connects the input terminal of the multiple current control module；The output end of the current control module is separately connected the input terminal of the multiple current detection module；The output end of the current detection module is separately connected the multiple battery module, and the current detection module is for detecting whether each passage current charging current is greater than allocation threshold；The circuit control module is used to control the input current of the battery module according to the testing result of the current detection module, it can be according to distributing chargeable threshold value under the control of charge controller, according to the size of the charging current detected, the size for controlling the charging current detected is adjusted to chargeable threshold range, constant-current charge is realized, guarantees that each battery is not in the slow situation that overcharges or charge.
Description
Technical field
This disclosure relates to charge field more particularly to a kind of more battery concurrent charging circuits, method and with the circuit
Wearable device.
Background technique
With the continuous development of technology, present terminal product (including intelligence wearing product) mostly uses non-removable built-in
Battery realizes the ultra-thin design for aesthetic of mobile phone；Due to the volumetric constraint of intelligence wearing product, power consumption and cruise duration become current intelligence
The stone of blocking the way of product design limitation can be dressed, and with the upgrading of application, problem is more and more highlighted.And the energy density of battery
It can not be substantially improved in a short time.So, it is necessary to which consideration is found some parallel except some revocable mainboard positions
Small space increase battery.
But due to the internal resistance of baby battery and main battery difference, if parallel charging will cause baby battery overcharge and big battery
The slow problem of the too low problem charging of charging current, the method that can be considered as increasing two-way charging circuit in the prior art are small to place
Over-charging of battery, and the problem that the too low charging of big battery electric current is slow still increases the method for two-way charging circuit, will cause charging
Circuit increase all the way or multichannel, increases in cost；So there are the above problems for the prior art；Based on the problem, need to mention
Solved for a kind of technical solution it is above-mentioned charge about more batteries, different capabilities battery overcharges caused by charging current is different
Or the problem that charging is slow.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
The application proposes in more battery concurrent charging processes, due to the electricity of each battery it is different and cause to overcharge or
Person charge slow situation and proposition more battery concurrent charging circuits and system, solve the charging of more batteries either overcharge or
Charge slow problem.
In order to solve the above technical problems, a technical solution used in the embodiment of the present invention is: providing a kind of more batteries simultaneously
Join circuit, which includes: charge controller, current control module, current detection module and battery module；The charging control
The output end of device processed connects the input terminal of the multiple current control module；The output end of the current control module is separately connected
The input terminal of the multiple current detection module；The output end of the current detection module is separately connected the multiple battery mould
Block, the current detection module is for detecting whether each passage current charging current is greater than allocation threshold；The circuit control
Module is used to control the input current of the battery module according to the testing result of the current detection module.
In embodiment of the disclosure, the charge controller is PMIC charging chip.
In embodiment of the disclosure, the current detection module is made of a resistance and a triode；The resistance
One end connect the output end of the current control module, the other end connects described three extreme base stages；Further, the triode
Emitter also connect the output end of the current control module.
In embodiment of the disclosure, the current control module carries out current constant control to current pass circuital current.
Another technical solution used in the embodiment of the present invention is: a kind of more battery parallel charging methods are provided, including with
Lower step:
Detect whether each access charging current is greater than allocation threshold；
If so, then exporting control signal, the electric current for controlling the access is less than or equal to the allocation threshold.
It in embodiment of the disclosure, detects whether each access charging current is greater than chargeable threshold value, further comprises: root
Chargeable threshold value is set for current pass battery-allocated according to preset rules according to the capacity of each access battery.
In embodiment of the disclosure, the output controls signal, and the electric current for controlling the access is less than or equal to described point
With threshold value, further comprise: whether the charging current for detecting current pass is greater than institute's allocation threshold, if more than reduction is then controlled
The electric current of current pass is to allocation threshold；If being less than, then the electric current for increasing current pass is controlled to allocation threshold.
Another technical solution used in the embodiment of the present invention is: providing a kind of wearable device, it is characterised in that, packet
It includes:
At least one processor；
And
The memory being connect at least one described processor communication；Wherein, the memory be stored with can by it is described extremely
The instruction repertorie that a few processor executes, described instruction program are executed by least one described processor so that it is described at least
One processor executes more battery parallel charging methods as described above.
Another technical solution used in the embodiment of the present invention is: providing a kind of wearable device, including shell, master control are set
Standby and the first power supply and second source, first power supply and second source are located at the space of the shell formation not
Same position.Second source is the device of integrated individual packages, and the second source is configured as any one of claim 1-4 institute
The circuit stated.
In embodiment of the disclosure, the second source includes the battery an of battery or multiple parallel connections, be used to
Main control device power supply, when detecting that the first electricity is less than preset threshold, starting second source is powered main control device.
Various embodiments provided by the present application, can be according to distributing chargeable threshold value, root under the control of charge controller
According to the size of the charging current detected, the size for controlling the charging current detected is adjusted to chargeable threshold range, real
Constant-current charge is showed, ensure that each battery is not in the slow situation that overcharges or charge.
Meanwhile the application uses the discrete device of small package for wearable device, realizes multiple batteries and charges parallel
Scheme realizes reliable charging mechanism for intelligence wearing product etc., improves reliability, the stability of product, reduce and sell
Maintenance cost afterwards.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of hardware structural diagram of embodiment of wearable device provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of embodiment of wearable device provided by the embodiments of the present application；
Fig. 3 is a kind of schematic diagram of embodiment of wearable device provided by the embodiments of the present application；
Fig. 4 is a kind of more battery concurrent charging circuit block diagrams provided by the embodiments of the present application；
Fig. 5 is that a kind of more battery concurrent charging circuits provided by the embodiments of the present application implement figure；
Fig. 6 is a kind of more battery concurrent charging method flow charts provided by the embodiments of the present application；
Fig. 7 is a kind of structural block diagram of embodiment of wearable device provided by the embodiments of the present application.
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 mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
The wearable device provided in the embodiment of the present invention includes that Intelligent bracelet, smartwatch and smart phone etc. move
Dynamic terminal.With the continuous development of Screen Technology, the appearance of the screens form such as flexible screen, Folding screen, smart phone etc. is mobile eventually
End can also be used as wearable device.The wearable device provided in the embodiment of the present invention may include: RF (Radio
Frequency, radio frequency) unit, WiFi module, audio output unit, A/V (audio/video) input unit, sensor, display
The components such as unit, user input unit, interface unit, memory, processor and power supply.
It will be illustrated by taking wearable device as an example in subsequent descriptions, referring to Fig. 1, its each implementation to realize the present invention
A kind of hardware structural diagram of wearable device of example, which may include: RF (Radio
Frequency, radio frequency) unit 101, WiFi module 102, audio output unit 103, A/V (audio/video) input unit 104,
Sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, Yi Ji electricity
The components such as source 111.It will be understood by those skilled in the art that wearable device structure shown in Fig. 1 is not constituted to wearable
The restriction of equipment, wearable device may include perhaps combining certain components or difference than illustrating more or fewer components
Component layout.
It is specifically introduced below with reference to all parts of the Fig. 1 to wearable device:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, radio frequency list
Uplink information can be sent to base station by member 101, and after the downlink information that in addition can also be sent base station receives, being sent to can be worn
The processor 110 for wearing equipment is handled, and base station can be to the downlink information that radio frequency unit 101 is sent and be sent out according to radio frequency unit 101
What the uplink information sent generated, it is also possible to actively push away to radio frequency unit 101 after the information update for detecting wearable device
It send, for example, base station can penetrating to wearable device after detecting that geographical location locating for wearable device changes
Frequency unit 101 sends the message informing of geographical location variation, and radio frequency unit 101, can should after receiving the message informing
The processor 110 that message informing is sent to wearable device is handled, and it is logical that the processor 110 of wearable device can control the message
Know on the display panel 1061 for being shown in wearable device；In general, radio frequency unit 101 include but is not limited to antenna, at least one
Amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, radio frequency unit 101 can also pass through channel radio
Letter communicated with network and other equipment, specifically may include: by wireless communication with the server communication in network system, example
Such as, wearable device can download file resource from server by wireless communication, for example can download and answer from server
With program, after wearable device completes the downloading of a certain application program, if the corresponding file of the application program in server
Resource updates, then the server can be by wireless communication to the message informing of wearable device push resource updates, to remind
User is updated the application program.Any communication standard or agreement can be used in above-mentioned wireless communication, including but not limited to
GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General
Packet Radio Service, general packet radio service), CDMA2000 (Code Division Multiple Access
2000, CDMA 2000), (Wideband Code Division Multiple Access, wideband code division are more by WCDMA
Location), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time division synchronous
CDMA), (Frequency Division Duplexing-Long Term Evolution, frequency division duplex are long by FDD-LTE
Phase evolution) and TDD-LTE (Time Division Duplexing-Long Term Evolution, time division duplex are drilled for a long time
Into) etc..
In one embodiment, wearable device 100 can access existing communication network by insertion SIM card.
In another embodiment, wearable device 100 can be come real by the way that esim card (Embedded-SIM) is arranged
Existing communication network is now accessed, by the way of esim card, the inner space of wearable device can be saved, reduce thickness.
It is understood that although Fig. 1 shows radio frequency unit 101, but it is understood that, radio frequency unit 101 its
And it is not belonging to must be configured into for wearable device, it can according to need within the scope of not changing the essence of the invention and save completely
Slightly.Wearable device 100 can belong to short range wireless transmission technology with WiFi to realize separately through wifi module 102, can
Wearable device can help user to send and receive e-mail by WiFi module 102, browse webpage and access streaming video etc., it is
User provides wireless broadband internet access.Although Fig. 1 shows WiFi module 102, but it is understood that, simultaneously
It is not belonging to must be configured into for wearable device, can according to need within the scope of not changing the essence of the invention and omit completely.
Audio output unit 103 can be in call signal reception pattern, call mode, record in wearable device 100
When under the isotypes such as mode, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data that person stores in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit
103 can also provide audio output relevant to the specific function that wearable device 100 executes (for example, call signal reception sound
Sound, message sink sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
In one embodiment, wearable device 100 includes one or more cameras, by opening camera,
It can be realized the capture to image, realize the functions such as take pictures, record a video, the position of camera, which can according to need, to be configured.
Wearable device 100 further includes at least one sensor 105, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring
The light and shade of border light adjusts the brightness of display panel 1061, proximity sensor can when wearable device 100 is moved in one's ear,
Close display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify mobile phone posture when static
It (for example pedometer, is struck using (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function
Hit) etc..
In one embodiment, wearable device 100 further includes proximity sensor, can by using proximity sensor
Wearable device can be realized non-contact manipulation, provide more modes of operation.
In one embodiment, wearable device 100 further includes heart rate sensor, when wearing, by close to using
Person can be realized the detecting of heart rate.
In one embodiment, wearable device 100 can also include that fingerprint sensor can by reading fingerprint
Realize the functions such as safety verification.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
In one embodiment, display panel 1061 uses flexible display screen, and wearable using flexible display screen sets
For when wearing, screen is able to carry out bending, to more be bonded.Optionally, the flexible display screen can use OLED screen
Body and graphene screen body, in other embodiments, the flexible display screen is also possible to other display materials, the present embodiment
It is not limited thereto.
In one embodiment, the display panel 1061 of wearable device can take rectangle, ring when convenient for wearing
Around.In other embodiments, other modes can also be taken.
User input unit 107 can be used for receiving the number or character information of input, and generate and wearable device
User setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch behaviour of user on it or nearby
Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel
Operation near 1071), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touching
Two parts of detection device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch behaviour
Make bring signal, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.This
Outside, touch panel 1071 can be realized using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touching
Panel 1071 is controlled, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072
It can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operation
One of bar etc. is a variety of, specifically herein without limitation.
In one embodiment, one or more buttons have can be set in the side of wearable device 100.Button can be with
The various ways such as short-press, long-pressing, rotation are realized, to realize a variety of operating effects.The quantity of button can be different to be multiple
It can be applied in combination between button, realize a variety of operating functions.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing wearable device as two independent components, but in certain embodiments,
Touch panel 1071 and display panel 1061 can be integrated and be realized the function that outputs and inputs of wearable device, specifically herein
Without limitation.For example, processor 110 can be controlled when receiving the message informing of a certain application program by radio frequency unit 101
The message informing show in a certain predeterminable area of display panel 1061 by system, the predeterminable area and touch panel 1071 certain
One region is corresponding, can be to corresponding to area on display panel 1061 by carrying out touch control operation to a certain region of touch panel 1071
The message informing shown in domain is controlled.
Interface unit 108 be used as at least one external device (ED) connect with wearable device 100 can by interface.Example
Such as, external device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, You Xianhuo
Wireless data communications 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..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in wearable device 100 or can
For transmitting data between wearable device 100 and external device (ED).
In one embodiment, wearable device 100 interface unit 108 using contact structure, by contact with
Corresponding other equipment connection, realizes the functions such as charging, connection.Use contact can be with waterproof.
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of wearable device, utilizes various interfaces and the entire wearable device of connection
Various pieces, by running or execute the software program and/or module that are stored in memory 109, and call and be stored in
Data in memory 109 execute the various functions and processing data of wearable device, to carry out to wearable device whole
Monitoring.Processor 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulation
Demodulation processor, wherein the main processing operation system of application processor, user interface and application program etc., modulation /demodulation processing
Device mainly handles wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Wearable device 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply
111 can be logically contiguous by power-supply management system and processor 110, thus charged by power-supply management system realization management,
The functions such as electric discharge and power managed.
Although Fig. 1 is not shown, wearable device 100 can also be including bluetooth module etc., and details are not described herein.It is wearable to set
Standby 100, by bluetooth, can connect with other terminal devices, realize communication and the interaction of information.
Fig. 2-Fig. 3 is please referred to, is the structure under a kind of a kind of embodiment of wearable device provided in an embodiment of the present invention
Schematic diagram.Wearable device in the embodiment of the present invention, including flexible screen.In wearable device expansion, flexible screen is in
Strip；When wearable device is in wearing state, flexible screen bending is annular in shape.Fig. 2 shows wearable device screens
Structural schematic diagram when expansion, Fig. 4 show structural schematic diagram when wearable device screen-bending.
Based on above-mentioned each embodiment, it can be seen that if the equipment is wrist-watch, bracelet or wearable device
When, the screen of the equipment can not overlay device watchband region, can also be with the watchband region of overlay device.Here, this Shen
It please propose a kind of optional embodiment, in the present embodiment, the equipment for wrist-watch, bracelet or wearable can be set
Standby, the equipment includes screen and interconnecting piece.The screen can be flexible screen, and the interconnecting piece can be watchband.It can
Choosing, the screen of the equipment or the viewing area of screen can be partly or completely covered on the watchband of equipment.Such as Fig. 2
Shown, the screen of the equipment extends to two sides, and part is covered on the watchband of equipment.In other embodiments, described
The screen of equipment can also be all covered on the watchband of the equipment, and the embodiment of the present application is not limited thereto.
Based on the hardware configuration of above-mentioned wearable device, each embodiment of more battery concurrents charging of the invention is proposed.
Embodiment one
As shown in figure 4, proposing the parallel charging circuit of the more batteries of the present invention, in some embodiments, which can be simultaneously
Row ground or charging to two or more battery sequentially.The system is in terminal device, including wearable device, example
In the application, using watch as embodiment, independently of the system of the terminal device outside, using the discrete device of additional small package,
It is encapsulated in the accommodating space with the wearable device together with main battery.
The characteristics of based on wearable device, for the ultra-thin design for aesthetic of product, while being limited to the limit of small product size again
System, therefore in use, since main battery generally can not fully meet the demand of user, and need to increase additional auxiliary electricity
Cruising ability is improved in pond, and the application is based on such problems, in based on existing usually ultra-thin wearable device, with wrist
Table is embodiment, by other increased battery in the form of the discrete device of additional small package, is mounted in wearable device, no
Occupy the limited space of wearable device itself, in addition, relatively independent encapsulation discrete device, is also convenient for subsequent maintenance or replaces
The demands such as battery are changed, the battery durable ability of wearable device is substantially increased, promote user's use feeling.
As shown in figure 4, a kind of more battery charged in parallel circuits, including charge controller 101；Current control module 102；Electricity
Flow detection module 103 and battery module 104；Charge controller 101 is connected to multiple current control modules 102 by port
Input terminal, in embodiments herein, the number of the current control module 102 is one or more, current control mould
The number of block 102 is depending on the battery number of the second power supply module, in individual packages device, only external electricity all the way
Chi Shi, then the current control module is one；In individual packages device, when having multichannel external connection battery, then the current control mould
Block is multiple；The charge controller 101 is PMIC charge independence chip.
As shown in Fig. 2-3 and Fig. 7, a kind of wearable device, including shell, main control device and the first battery and second
Battery, first power supply and second source are located at the different parts in the space that the shell is formed.Second battery is collection
At individual packages device.The second source includes the battery an of battery or multiple parallel connections, is used to set to master control
Available electricity starts battery in second source and is powered to main control device, to guarantee in the insufficient situation of the first electric quantity of power supply
The normal work of wearable device.
As shown in figure 5, a kind of more battery charged in parallel systems, including main module, first power module namely may be used
The main power source of wearable device；It further include second power supply module, the second power supply module is to be electrically connected with first power module
It connects, and the second power supply module is electrically connected with the main control module with first power module, receives the master control mould
The control signal of block charges to wearable device.
In embodiments herein, charge controller 101 used is that it includes a variety of that (PMIC), which is in monolithic chip,
The integrated circuit of power rail and power management function.PMIC is usually used in powering for small size, battery supply set, because by a variety of
Function, which is integrated into monolithic chip, can provide higher space utilization rate and system power supply efficiency.The common features integrated in PMIC
Including electric pressure converter and adjuster, battery charger, battery meter, LED driver, real-time clock, power supply sorting unit and
Power supply control.
Low-power consumption PMIC is provided needed for the application of the limited spaces such as wearable device, ear-wearing type equipment, sensor and IoT equipment
High efficiency and small size.High-performance PMIC utmostly improves the utilization rate of every watt of power, while improving system performance, very
It is suitable for computation-intensive platform, such as system on chip (SoC), FPGA and application processor.And discrete device is at low cost
It is honest and clean, it is suitble to promote on mobile terminals
PMIC current control module 102 controls the overall current of three batteries；According to the capacity of three batteries and charging speed
Rate confirms size of current.
It is specific as shown in figure 5, the current control module 102 be it is multiple, the input terminal of each current control module 102 is equal
The output end of charge controller 101 is connected, each current control module 102 connects the input terminal of current detection module 103, circuit
The input terminal of the output end connection battery module of detection module 103.
The current detection module 103 is formed by connecting by a resistance and a triode；The current control module 102
There are two output ends, are respectively connected to the input terminal of the resistance and the triode.One end of the resistance connects the electricity
The output end of flow control module, the other end connect described three extreme base stages；Further, the emitter of the triode also connects institute
State the output end of current control module.
The battery module 104 be one or more dry cell batteries at circuit；The capacity of each dry cell
With difference, it can be convenient in this way for the baby battery of different capabilities setting (adjusting monitoring current), effectively prevent overcharging and fill
The electric too low problem of rate.
It will appear each battery charging since the battery capacity of each battery module is different, therefore when charging not
Equal situation, if 1 battery capacity of battery is 300mAh, 2 capacity of battery is 200mAh, and 3 capacity of battery is 100mAh,
Three capacitors are respectively maximum 1C rechargeable battery.
Then charge controller 101 sets maximum charging current threshold value, and charge controller 101 obtains each electricity in battery module
The maximum battery capacity in pond is set according to the maximum capacity of setting maximum charging current threshold value and each battery according to preset rules
The maximum charge threshold value of fixed each battery, pre-defined rule described above can be the ratio according to each battery maximum capacity to divide
With maximum chargeable threshold value, or the pre-defined rule is to be weighted to the capability value of each battery, according to weighting coefficient into
Row distribution；Though above the pre-defined rule be it is any, the chargeable threshold value of maximum of each battery and be respectively less than or
Person is equal to maximum charging current threshold value.Such as: PMIC control charging current is up to 550mAh；The charging current limit of every battery
It is made as, battery 1 is 280mAh, and battery 2 is 185mAh, and it is 85mAh that battery 3, which limits electric current,.It neither will cause and overcharge in this way
Electricity will not charge slack-off.
Current control module 102 carries out current constant control to charging current, specifically: constant-current charging phase: current control mould
The charging current of access where block 1 detects each battery, when detecting the chargeable threshold value of current pass distributed, suitably
The first triode of reduction base voltage, according to the control principle of triode, by the Ic1 electric current of the first triode after reduction
Also it can reduce；Until the electric current of Ic1 is less than or equal to the chargeable threshold value distributed.Similarly, if it find that when Ic1 electric current is too small,
The base voltage of the first triode is properly increased, the electric current of Ic1 can improve, and reach the chargeable threshold current distributed.
Similarly, current control module 2 detects the charging current of alternate path, is distributed when detecting that charging current is greater than
When chargeable threshold value, such as when 185mA, the base voltage appropriate for reducing Q2 pipe, according to the control principle of triode, after reduction
It can also be reduced by the Ic2 electric current of Q2 pipe；Until the electric current of Ic2 is less than or equal to 185mAh.If detecting that Ic1 electric current is less than
140mA properly increases the base voltage of Q2 pipe, and the electric current of Ic1 can improve, and reaches 185mAh or so.Similarly, current control mould
Block 3 detects the access charging current of BAT3, when detecting that charging current is greater than 85mA, the base stage electricity appropriate for reducing Q3 pipe
Pressure, according to the control principle of triode, can also be reduced after reduction by the Ic3 electric current of Q3 pipe；Until the electric current of Ic3 is less than or equal to
85mAh.If detecting that Ic3 electric current is less than 50mA, the base voltage of Q3 pipe is properly increased, the electric current of Ic3 can improve, reach
85mAh or so.
Embodiment two:
As shown in fig. 6, a kind of more battery parallel charging methods, specifically include:
Step S1: detect whether each access charging current is greater than allocation threshold；
Step S2: if so, then exporting control signal, the electric current for controlling the access is less than or equal to the allocation threshold.
Specific: step S1 further includes step S11: detecting whether each access charging current is greater than allocation threshold, into one
Step includes: to set chargeable threshold value according to preset rules according to the capacity of each access battery for current pass battery-allocated.
Specific: step S2 includes step S21: the output controls signal, and the electric current for controlling the access is less than or waits
In the allocation threshold, further comprise: whether the charging current for detecting current pass is greater than the chargeable threshold value, if greatly
In then controlling the electric current for reducing current pass to allocation threshold；If being less than, then the electric current for increasing current pass is controlled to distributing threshold
Value.
Specific control method described in a device in approach described above, and feature is identical, is not repeated to describe.
Embodiment three:
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 (10)
1. a kind of more battery parallel circuits, it is characterised in that, it include: charge controller, current control module, current detection module
And battery module；The output end of the charge controller connects the input terminal of the multiple current control module；The electric current
The output end of control module is separately connected the input terminal of the multiple current detection module；The output end of the current detection module
It is separately connected the multiple battery module, the current detection module is for detecting whether each passage current charging current is greater than
Allocation threshold；The circuit control module is used to control the battery module according to the testing result of the current detection module
Input current.
2. a kind of more battery parallel circuits according to claim 1, it is characterised in that, the charge controller fills for PMIC
Electrical chip.
3. a kind of more battery parallel circuits according to claim 1, it is characterised in that, the current detection module is by one
Resistance and a triode are constituted；One end of the resistance connects the output end of the current control module, and the other end connects institute
State three extreme base stages；Further, the emitter of the triode also connects the output end of the current control module.
4. a kind of more battery parallel circuits according to claim 1, it is characterised in that, the current control module is to current
Path circuitry electric current carries out current constant control.
5. a kind of more battery parallel charging methods, it is characterised in that, the following steps are included:
Detect whether each access charging current is greater than allocation threshold；
If so, then exporting control signal, the electric current for controlling the access is less than or equal to the allocation threshold.
6. a kind of more battery parallel charging methods according to claim 5, it is characterised in that, detect each access charging electricity
Whether stream is greater than allocation threshold, further comprises: electric for current pass according to preset rules according to the capacity of each access battery
Pond distribution sets chargeable threshold value.
7. a kind of more battery parallel charging methods according to claim 5, it is characterised in that, the output controls signal,
The electric current for controlling the access is less than or equal to the allocation threshold, and further comprise: the charging current for detecting current pass is
It is no to be greater than the chargeable threshold value, if more than the electric current for reducing current pass is then controlled to allocation threshold；If being less than, then control
Increase the electric current of current pass to allocation threshold.
8. a kind of wearable device, it is characterised in that, include:
At least one processor；
And
The memory being connect at least one described processor communication；Wherein, be stored with can be by described at least one for the memory
The instruction repertorie that a processor executes, described instruction program are executed by least one described processor so that it is described at least one
Processor executes such as the described in any item methods of claim 5 to 7.
9. a kind of wearable device characterized by comprising shell, main control device and the first power supply and second source, it is described
First power supply and second source are located at the different parts in the space that the shell is formed.Second source is integrated independent envelope
The device of dress, the second source are configured as the described in any item circuits of claim 1-4.
10. a kind of wearable device as claimed in claim 9, it is characterised in that: the second source include a battery or
The battery of the multiple parallel connections of person is used to power to main control device, when detecting that the first electricity is less than preset threshold, starting second
Power supply is powered main control device.
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| WO2021217315A1 (en) * | 2020-04-26 | 2021-11-04 | 深圳市大疆创新科技有限公司 | Charging control method, charger, charging system, and storage medium |
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