CN110323805A - A kind of battery management module and circuit - Google Patents
A kind of battery management module and circuit Download PDFInfo
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- CN110323805A CN110323805A CN201910667254.1A CN201910667254A CN110323805A CN 110323805 A CN110323805 A CN 110323805A CN 201910667254 A CN201910667254 A CN 201910667254A CN 110323805 A CN110323805 A CN 110323805A
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- battery
- unit
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- effect tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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 present invention relates to a kind of battery management module and circuits；Battery access unit and power output unit are detachable connecting device, using flexible, can external use to adapt to different use demands；Single-way switch unit controls battery access unit and power output unit carries out forward conduction, reverse-conducting or disconnection, is charged the battery with realizing, discharges, and energy conservation；Battery protection and electricity computing unit carry out additives for overcharge protection, overheating protection and the state for the electricity of battery being calculated and being detected battery to battery, have both detected temperature and voltage of battery etc., and have realized the service life and safety for extending battery；Battery protection and electricity computing unit detect after battery meets normal working condition that control single-way switch unit carries out forward conduction and the electric energy of battery is made to transfer to power output unit, realize for electricity output；It realizes and Charge Management is carried out to the battery of mobile terminal and carries out that economize on electricity is realized in output and circuit is simple according to the electric energy that the state of battery controls battery.
Description
Technical field
The invention belongs to the technical field of battery management of mobile terminal more particularly to a kind of battery management module and circuits.
Background technique
Notebook and mobile phone are common electronic equipments in life, wherein being battery capacity instruction and charging known to the most
Prompting function, however so simple application but has behind and its complicated operating protocol；For notebook, in protocol layer
Face, the agreement for a set of fixation that the system layer and bottom hardware EC (embedded controller) of Microsoft are formed for many years are logical using EC
SMBUS (System Management Bus) bus accesses the address of the voltameter in battery modules, thus obtain electricity data into
Row reports operating system, to complete the instruction of electricity and the management of battery；On hardware design framework, use is relatively-stationary
Design architecture, Charge Management and EC (embedded controller) are designed on notebook mainboard, and voltameter and battery modules binding
At battery pack, physical connection is connected using dedicated battery terminal；
Although above-described conventional architectures are used till today always, the design threshold is relatively high, and custom design cost is non-
Chang Gaoang, and the R&D cycle is again long, since development in science and technology is to making novel application emerge one after another, conventional architectures are for novel
Application become very inflexible；In practical applications, other than notebook mainboard, most of motherboard design is all without cell tube
Reason and battery capacity indication, when new application generates, many times because the high or development cycle of customization cost is too long, without
Not select external application module to piece together, finally work it out product user experience it is poor, battery capacity indication with system due to that can not assist
View docking, therefore only do and indicated outside simple system, the imperfect battery management of common mainboard leads to battery discharge time
Too short or even battery is easy to appear various security risks.
Summary of the invention
The purpose of the present invention is intended to provide one kind and can carry out Charge Management to the battery of mobile terminal and obtain battery
Information about power and the electric power confession for being sent to operating system and battery being cut off to electrical equipment according to the condition intelligent of operating system
It answers and circuit is simple, it is at low cost, it is small in size, and can be communicated with external equipment, the extensive battery management mould of applicability
Block and circuit.
Construct a kind of battery management module, wherein include:
Battery access unit is detachably connected for the mainboard with battery；
Power output unit, for being detachably connected with the electricity display unit of external electrical equipment and outside；
Single-way switch unit is connect with the battery access unit and the power output unit respectively, for controlling
It states battery access unit and the power output unit carries out forward conduction, reverse-conducting or disconnection；
Battery protection and electricity computing unit are used to connect with the battery access unit, overcharge to the battery
Electric protection, overheating protection and the state for the electricity of the battery being calculated and being detected the battery；
The battery protection and electricity computing unit detect after the battery meets normal working condition described in control
Single-way switch unit carries out forward conduction, and the electric energy of the battery transfers to the power output unit.
Battery management module of the present invention, wherein further include:
Power Management Unit, the Power Management Unit respectively with the power output unit and the battery protection and electricity
Measure the level state of computing unit connection, signal pins for detecting the power output unit, the power output unit
Signal pins export high level, the Power Management Unit issues forward conduction signal and calculates to the battery protection and electricity
Unit, which controls the single-way switch unit, to be continued to keep forward conduction；
The Power Management Unit detects signal pins the output low level, the power supply pipe of the power output unit
Reason unit issues cut-off signal and turns off to the battery protection and the electricity computing unit control single-way switch unit, it
The Power Management Unit enters sleep state afterwards；
Battery management module of the present invention, wherein after the electrical equipment and power output unit connection, institute
The multiplexing pins output high level for stating power output unit wakes up the Power Management Unit, and the Power Management Unit is called out
Issued after waking up the forward conduction signal to the battery protection and electricity computing unit control the single-way switch unit into
Row forward conduction continues to keep forward conduction, and the battery provides power supply for the electrical equipment.
Battery management module of the present invention, wherein further include:
Data transfer elements, for connect with the battery protection and electricity computing unit obtain the battery electricity,
And it also connect to export the electricity of the battery with the power output unit and be shown to the electricity display unit；
The data transfer elements, which are also connect with System Management Bus, exports the electricity of the battery to operating system, institute
State the state that data transfer elements also obtain the operating system from the System Management Bus, the state of the operating system
Then the data transfer elements issue cut-off signal and control institute to the battery protection and electricity computing unit when for off-mode
Single-way switch unit is stated to turn off.
Battery management module of the present invention, wherein the electricity of the battery lower than setting threshold values when, the electricity
Display unit issues charge reminder.
Battery management module of the present invention, wherein further include:
Charhing unit, the output electricity for the power supply adaptor to be attached and detected with external power supply adaptor
Pressure, the charhing unit are also connect with the single-way switch unit for charging to the battery, and the charhing unit is also
For controlling the size of current to charge to the battery；The charhing unit also connect with the power output unit, uses
In the electrical equipment offer power supply to being connect with the power output unit；
The charging detection unit detect the output voltage of the power supply adaptor in the voltage range of setting, it is described
Charhing unit, which controls the data transfer elements, and the System Management Bus shake hands determines and charges to the battery
Size of current, and control the single-way switch unit and carry out reverse-conducting and charge to the battery.
Battery management module of the present invention, wherein the electrical equipment and the power output unit disconnect after, institute
The signal pins for stating power output unit export low level, the Power Management Unit issues cut-off signal to the battery protection
And electricity computing unit controls the single-way switch unit and turns off, the Power Management Unit enters sleep state later.
On the other hand the present invention also provides a kind of circuits based on above-mentioned battery management module, wherein the battery connects
Entering unit is the first Type-C socket, and the power output unit is the 2nd Type-C socket, the 2nd Type-C socket
CC2 pin is the signal pins of the power output unit, and the SBU1 pin of the 2nd Type-C socket is that the electric energy is defeated
The multiplexing pins of unit out；
The battery protection and electricity computing unit are battery management chip, and the end VCC1 of the power management chip connects
It is connected to first resistor and the end VCC2 is connected with second resistance, the end VCC3 is connected with 3rd resistor, the end VCC4 is connected with the 4th resistance；
The other end of the first resistor is connect with the end SSRXp1 of the first Type-C socket or with the end SSR Xp2；
The other end of the second resistance is connect with the end Dn1_1 of the first Type-C socket or with the end Dn1_2；
The other end of the 3rd resistor is connect with the end SSTXp2 of the first Type-C socket or with the end SSTXp1；
The other end of 4th resistance and the end VBUS_1, the end VBUS_2, VBUS_3 of the first Type-C socket
End, the one end therein at the end VBUS_4 or multi-terminal link；
The end SRP of the power management chip is connected with the 5th resistance and the end SRN is connected with the 6th resistance, the 5th electricity
The end GND_1 of the other end of resistance and the first Type-C socket, the end GND_2, the end GND_3, the end GND_4 one end therein
Or multi-terminal link, the other end of the 5th resistance and the other end of the 6th resistance are grounded, the 5th resistance it is another
The other end of one end and the 6th resistance is parallel with the 7th resistance；
The end TS1 of the power management chip is connect with the end CC1 of the first Type-C socket or with the end CC2；
The single-way switch unit includes the first field-effect tube and the second field-effect tube, the drain electrode of first field-effect tube
It is connect with the drain electrode of second field-effect tube；The grid of first field-effect tube is connected with the 8th resistance and the 9th resistance,
The other end of 8th resistance is connect with the source electrode of first field-effect tube, the other end and the electricity of the 9th resistance
The end DSG of source control chip connects；The grid of second field-effect tube is connected with the tenth resistance and eleventh resistor, and described
The other end of ten resistance is connect with the source electrode of second field-effect tube, the other end of the eleventh resistor and the power supply pipe
Manage the end the CHG connection of chip；The source electrode of first field-effect tube is connect with the charhing unit；Second field-effect tube
The end VBUS_1 of source electrode and the first Type-C socket, the end VBUS_2, the end VBUS_3, the end VBUS_4 one end therein or more
End connection.
The circuit of battery management module of the present invention, wherein the Power Management Unit is the first microcontroller；Institute
The end PIO0_14/ADC_2/ACMP_I3 for stating the first microcontroller is connect with the CC2 pin of the 2nd Type-C socket；It is described
The end PIO_4/ADC_11/TRST of first microcontroller is connected with twelfth resistor and first diode, the twelfth resistor
The other end and power supply anode connect, the PIO_4/ADC_ of the cathode of the first diode and first microcontroller
The connection of the end 11/TRST, the SBU1 pin of the anode and the 2nd Type-C socket of the first diode；The power management
The end PRES/SHUTDN of chip is connected with thirteenth resistor, the other end of the thirteenth resistor and first microcontroller
The connection of the end PIO0_22/ADC_4 and be also connected with first capacitor, the other end ground connection of the first capacitor；
The data transfer elements are the second microcontroller；The end SMCLK0/WUI55/GPB3 of second microcontroller
It is connect with the end SMBD of the power management chip, the end SMDAT0/WUI46/GPB4 of second microcontroller and the electricity
The end SMBC of source control chip connects；
The end EIO0/LAD0/GPM0 of second microcontroller and the end SSRXp1 of the 2nd Type-C socket connect
It connects,
The end EIO0/LAD0/GPM0 of second microcontroller and the end SSRXn1 of the 2nd Type-C socket connect
It connects,
The end EIO0/LAD0/GPM0 of second microcontroller and the end SSTXn2 of the 2nd Type-C socket connect
It connects,
The end EIO0/LAD0/GPM0 of second microcontroller and the end SSTXp2 of the 2nd Type-C socket connect
It connects,
Second microcontroller is also connect with the System Management Bus.
The circuit of battery management module of the present invention, wherein the charhing unit includes overvoltage protection and switch electricity
Road and charging chip；
The overvoltage protection and switching circuit include timer and third field-effect tube and the 4th field-effect tube, and described
The drain electrode of three field-effect tube is connect with the output cathode of the power supply adaptor, the output negative pole ground connection of the power supply adaptor；
The source electrode of the third field-effect tube is connect with the source electrode of the 4th field-effect tube；
The grid of the third field-effect tube is connected with the 14th resistance, the 15th resistance, the second diode and the three or two
Pole pipe and the second capacitor；The other end of 14th resistance is connect with the drain electrode of the third field-effect tube, the third
The cathode of diode is connect with the grid of the third field-effect tube, the plus earth of the third diode, second electricity
The other end of appearance is also grounded；
The cathode of second diode is connect with the grid of the third field-effect tube, the anode of second diode
It is connect with the source electrode of the third field-effect tube；The other end of 15th resistance is connected with the 4th diode, and the described 4th
The cathode of diode is connect with the other end of the 15th resistance；The anode of 4th diode is connected with the 5th diode
With third capacitor, the cathode of the 5th diode is connect with the anode of the 4th diode, and the 5th diode is just
Pole is connect with the source electrode of the third field-effect tube or with the source electrode of the 4th field-effect tube, the other end of the third capacitor
It is connect with the OUT terminal of the timer；
The end V+ of the timer is connected with the 6th diode and the 4th capacitor, the cathode of the 6th diode with it is described
The end V+ of timer connects, and the anode of the 6th diode is connected with the first triode, the emitter of first triode
It is connect with the anode of the 6th diode, the other end ground connection of the 4th capacitor；The base stage of first triode connects
There are the 5th capacitor and the 7th diode and the 16th resistance；The other end of 16th resistance and first triode
Collector is connected and is also connect with the output cathode of the power supply adaptor, the cathode and the described 1st of the 7th diode
The base stage of pole pipe connects, and the other end of the plus earth of the 7th diode, the 5th capacitor is also grounded；The timer
The end RESET connect connection with the cathode of the 6th diode；
The end DSC of the timer is connected with the 17th resistance and the 18th resistance, the other end of the 17th resistance
Connect with the cathode of the 6th diode, the other end of the 18th resistance respectively with the end TH of the timer and the end TG
Connection, the other end of the 18th resistance are also connected with the 6th capacitor, the other end ground connection of the 6th capacitor, the timing
The end CTLV of device is also grounded；
The end CHRG_OK of the charging chip is connected with the second triode, and the base stage of second triode is filled with described
The end CHRG_OK of electrical chip connects, and the collector of second triode is connected with third transistor and the 19th resistance；It is described
The other end of 19th resistance is connect with the anode of the power supply, the base stage of the third transistor and first triode
Collector connection；The emitter of second triode and the emitter of the third transistor are grounded；Three or three pole
The collector of pipe is connect with the grid of the third field-effect tube or with the grid of the 4th field-effect tube；
The end LODRV1 of the charging chip is connected with the 5th field-effect tube and the end HIDRV1 is connected with the 6th field-effect tube；
The grid of 6th field-effect tube is connect with the end HIDRV1 of the charging chip, the drain electrode of the 6th field-effect tube and institute
State the 4th field-effect tube drain electrode connection, the source electrode of the 6th field-effect tube connect with the drain electrode of the 5th field-effect tube and
It is also connected with inductance, the source electrode ground connection of the 5th field-effect tube；
The end HIDRV2 of the charging chip is connected with the 7th field-effect tube and the end LODRV2 is connected with the 8th field-effect tube；
The source electrode of 7th field-effect tube connect with the other end of the inductance and drains and the VBUS_ of the 2nd Type-C socket
1 end, the end VBUS_2, the end VBUS_3, the one end therein at the end VBUS_4 or multi-terminal link；The grid of 8th field-effect tube with
The end LODRV2 of the charging chip connects, and the drain electrode of the 8th field-effect tube is connect with the other end of the inductance and source electrode
Ground connection；
The end BATDRV_N of the charging chip is connected with the 9th field-effect tube, the grid of the 9th field-effect tube and institute
State the end the BATDRV_N connection of charging chip and the drain electrode drain electrode with the 7th field-effect tube and the charging chip respectively
The connection of the end VSYS, the source electrode of the 9th field-effect tube are connect with the source electrode of first field-effect tube.
The beneficial effects of the present invention are: the mainboard of battery access unit and battery is detachably connected, power output
Unit and the electricity display unit of external electrical equipment and outside are detachably connected, and using flexible external can use
To adapt to different use demands；Single-way switch unit control battery access unit and power output unit carry out forward conduction,
Reverse-conducting or disconnection are charged the battery with realizing, are discharged, and energy conservation；Battery protection and electricity computing unit are to battery
Additives for overcharge protection, overheating protection and the state for the electricity of battery being calculated and being detected battery are carried out, battery is both detected
Temperature and voltage etc. realize the service life and safety for extending battery；Battery protection and electricity computing unit detect battery
Control single-way switch unit progress forward conduction makes the electric energy of battery transfer to power output unit after meeting normal working condition,
It realizes for electricity output；Realize to the battery of mobile terminal carry out Charge Management and according to the state of battery control the electric energy of battery into
Economize on electricity is realized in row output and circuit is simple, and at low cost, small in size, applicability is extensive.
Detailed description of the invention
Fig. 1 is the functional block diagram of battery management module provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of the battery access unit of the circuit of battery management module provided in an embodiment of the present invention；
Fig. 3 is the circuit diagram of the power output unit of the circuit of battery management module provided in an embodiment of the present invention；
Fig. 4 is the circuit diagram of the single-way switch unit of the circuit of battery management module provided in an embodiment of the present invention；
Fig. 5 is the circuit diagram of the Power Management Unit of the circuit of battery management module provided in an embodiment of the present invention；
Fig. 6 is the circuit diagram of the data transfer elements of the circuit of battery management module provided in an embodiment of the present invention；
Fig. 7 is the battery protection of the circuit of battery management module provided in an embodiment of the present invention and the electricity of electricity computing unit
Lu Tu；
Fig. 8 is the circuit diagram of the charging chip of the circuit of battery management module provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Battery management module and the circuit of present pre-ferred embodiments are as shown in Figure 1, simultaneously refering to Fig. 2 to Figure 10；Packet
It includes:
Battery access unit 10, for being detachably connected with the mainboard of battery (not shown)；
Power output unit 20, for the electricity display unit with external electrical equipment (not shown) and outside
(not shown) is detachably connected；
Single-way switch unit 30 is connect with battery access unit 10 and power output unit 20 respectively, for controlling battery
Access unit 10 and power output unit 20 carry out forward conduction, reverse-conducting or disconnection；
Battery protection and electricity computing unit 40 are used to connect with battery access unit 10, carry out overcharge guarantor to battery
Shield, overheating protection and the state for the electricity of battery being calculated and being detected battery；
Battery protection and electricity computing unit 40, which detect, controls single-way switch list after battery meets normal working condition
Member 30 carries out forward conduction, and the electric energy of battery transfers to power output unit 20；
Battery access unit 10 and the mainboard of battery are detachably connected, and power output unit 20 is set with external electricity consumption
Standby and external electricity display unit is detachably connected, using flexible, can external use needed with adapting to different use
It asks；Single-way switch unit 30 controls battery access unit 10 and power output unit 20 carries out forward conduction, reverse-conducting or disconnected
It opens, is charged the battery with realizing, discharged, and energy conservation；Battery protection and electricity computing unit 40 carry out overcharge to battery
Protection, overheating protection and the state for the electricity of battery being calculated and being detected battery, had both detected the temperature and voltage of battery
Deng the service life and safety of realization extension battery；It is normal that battery protection and electricity computing unit 40 detect that battery meets
Working condition after control single-way switch unit 30 carry out forward conduction so that the electric energy of battery is transferred to power output unit 20, realize
For electricity output；It realizes and Charge Management is carried out to the battery of mobile terminal and is carried out according to the electric energy that the state of battery controls battery defeated
It realizes economize on electricity out and circuit is simple, at low cost, small in size, applicability is extensive.
As shown in Figure 1, further includes:
Power Management Unit 50, Power Management Unit 50 are calculated with power output unit 20 and battery protection and electricity respectively
The connection of unit 40, signal pins for detecting power output unit 20 level state, the signal of power output unit 20 draws
Foot exports high level, Power Management Unit 50 issues forward conduction signal and controls unidirectionally to battery protection and electricity computing unit 40
Switch unit 30 continues to keep forward conduction；
Power Management Unit 50 detects signal pins the output low level, Power Management Unit 50 of power output unit 20
It issues cut-off signal to turn off to battery protection and the control single-way switch unit 30 of electricity computing unit 40, later power supply pipe
It manages unit 50 and enters sleep state；Realize economize on electricity.
As shown in Figure 1, the multiplexing pins of power output unit 20 export after electrical equipment and power output unit 20 are connected
High level wakes up Power Management Unit 50, and Power Management Unit 50 issues forward conduction signal to battery protection after being waken up
And electricity computing unit 40 controls single-way switch unit 30 and carries out forward conduction or continue to keep forward conduction, battery sets for electricity consumption
It is standby that power supply is provided；Realize economize on electricity.
As shown in Figure 1, further includes:
Data transfer elements 60, for connect with battery protection and electricity computing unit 40 obtain battery electricity and also
It connect to export the electricity of battery with power output unit 20 and be shown to electricity display unit；
Data transfer elements 60 also connect with System Management Bus (not shown) and export the electricity of battery to operation
System, data transfer elements 60 obtain the state of operating system also from System Management Bus, and the state of operating system is shutdown
Then data transfer elements 60 issue cut-off signal and control single-way switch unit to battery protection and electricity computing unit 40 when state
30 turn off；Realize the synchronization of operating system.
As shown in Figure 1, the electricity of battery lower than setting threshold values when, electricity display unit issue charge reminder；It is intelligent
Degree is high.
As shown in Figure 1, further includes:
Charhing unit 70, for being attached and detecting the output voltage of power supply adaptor with external power supply adaptor,
Charhing unit 70 is also connect with single-way switch unit 30 for charging the battery, and charhing unit 70 is also used to control to electricity
The size of current that pond is charged；Charhing unit 70 also connect with power output unit 20, for power output unit 20
The electrical equipment of connection provides power supply；
Charging detection unit detects the output voltage of power supply adaptor in the voltage range of setting, the control of charhing unit 70
Data transfer elements 60 processed carry out the size of current for determining and charging the battery of shaking hands with System Management Bus, and control unidirectional
Switch unit 30 carries out reverse-conducting and charges to battery；It realizes intelligent charge, further protects battery.
As shown in Figure 1, electrical equipment and power output unit 20 disconnect after, the signal pins of power output unit 20 export
Low level, Power Management Unit 50 issue cut-off signal and control single-way switch unit to battery protection and electricity computing unit 40
30 turn off, and Power Management Unit 50 enters sleep state later；Further realize economize on electricity.
Such as a kind of Fig. 2 to circuit based on above-mentioned battery management module shown in Fig. 8, battery access unit 10 is the
One Type-C socket J1, power output unit 20 are the 2nd Type-C socket J2, and the CC2 pin of the 2nd Type-C socket J2 is
The signal pins of power output unit 20, the SBU1 pin of the 2nd Type-C socket J2 are that the multiplexing of power output unit 20 is drawn
Foot；
Battery protection and electricity computing unit 40 are battery management chip U6, and the end VCC1 of power management chip U6 connects
There is first resistor R85 and the end VCC2 is connected with second resistance R84, VCC3 end and is connected with 3rd resistor R83, VCC4 end and is connected with
Four resistance R82；
The other end of first resistor R85 is connect with the end SSRXp1 of the first Type-C socket J1 or with the end SSR Xp2；
The other end of second resistance R84 is connect with the end Dn1_1 of the first Type-C socket J1 or with the end Dn1_2；
The other end of 3rd resistor R83 is connect with the end SSTXp2 of the first Type-C socket J1 or with the end SSTXp1；
The end VBUS_1 of the other end of 4th resistance R82 and the first Type-C socket J1, the end VBUS_2, the end VBUS_3,
The one end therein at the end VBUS_4 or multi-terminal link；
The end SRP of power management chip U6 is connected with the 5th resistance R92 and the end SRN is connected with the 6th resistance R93, the 5th electricity
Hinder R92 the other end and the end GND_1 of the first Type-C socket J1, the end GND_2, the end GND_3, the end GND_4 one end therein
Or multi-terminal link, the other end of the 5th resistance R92 and the other end of the 6th resistance R93 are grounded, the other end of the 5th resistance R92
The 7th resistance R94 is parallel with the other end of the 6th resistance R93；
The end TS1 of power management chip U6 is connect with the end CC1 of the first Type-C socket J1 or with the end CC2；
Single-way switch unit 30 includes the first field-effect tube Q9 and the second field-effect tube Q8, the drain electrode of the first field-effect tube Q9
It is connect with the drain electrode of the second field-effect tube Q8；The grid of first field-effect tube Q9 is connected with the 8th resistance R71 and the 9th resistance
R76, the other end of the 8th resistance R71 are connect with the source electrode of the first field-effect tube Q9, the other end and power supply pipe of the 9th resistance R76
Manage the end the DSG connection of chip U6；The grid of second field-effect tube Q8 is connected with the tenth resistance R70 and eleventh resistor R75, and the tenth
The other end of resistance R70 is connect with the source electrode of the second field-effect tube Q8, the other end and power management chip of eleventh resistor R75
The end CHG of U6 connects；The source electrode of first field-effect tube Q9 is connect with charhing unit 70；The source electrode and first of second field-effect tube Q8
The end VBUS_1, the end VBUS_2, the end VBUS_3, the one end therein at the end VBUS_4 or the multi-terminal link of Type-C socket J1；Circuit
Simply, at low cost, it is small in size.
As shown in Fig. 2 to Fig. 8, Power Management Unit 50 is the first microcontroller U11；First microcontroller U11's
The end PIO0_14/ADC_2/ACMP_I3 is connect with the CC2 pin of the 2nd Type-C socket J2；The PIO_ of first microcontroller U11
The end 4/ADC_11/TRST is connected with twelfth resistor R27 and first diode D8, the other end and power supply of twelfth resistor R27
Anode connection, the cathode of first diode D8 connect with the end PIO_4/ADC_11/TRST of the first microcontroller U11, first
The SBU1 pin of the anode and the 2nd Type-C socket J2 of diode D8；The end PRES/SHUTDN of power management chip U6 connects
There are thirteenth resistor R111, the end the PIO0_22/ADC_4 company of the other end of thirteenth resistor R111 and the first microcontroller U11
Connect and be also connected with first capacitor C77, the other end ground connection of first capacitor C77；
Data transfer elements 60 are the second microcontroller U2；The end SMCLK0/WUI55/GPB3 of second microcontroller U2 with
The end SMBD of power management chip U6 connects, the end SMDAT0/WUI46/GPB4 of the second microcontroller U2 and power management chip
The end SMBC of U6 connects；
The end EIO0/LAD0/GPM0 of second microcontroller U2 is connect with the end SSRXp1 of the 2nd Type-C socket J2,
The end EIO0/LAD0/GPM0 of second microcontroller U2 is connect with the end SSRXn1 of the 2nd Type-C socket J2,
The end EIO0/LAD0/GPM0 of second microcontroller U2 is connect with the end SSTXn2 of the 2nd Type-C socket J2,
The end EIO0/LAD0/GPM0 of second microcontroller U2 is connect with the end SSTXp2 of the 2nd Type-C socket J2,
Second microcontroller U2 is also connect with System Management Bus；Circuit is simple, at low cost, small in size.
As shown in Fig. 2 to Fig. 8, charhing unit 70 includes overvoltage protection and switching circuit 71 and charging chip U21；
Overvoltage protection and switching circuit 71 include timer U4 and third field-effect tube Q2 and the 4th field-effect tube Q3, the
The drain electrode of three field-effect tube Q2 and the output cathode of power supply adaptor connect, the output negative pole ground connection of power supply adaptor；Third field
The source electrode of effect pipe Q2 is connect with the source electrode of the 4th field-effect tube Q3；
The grid of third field-effect tube Q2 is connected with the 14th resistance R21, the 15th resistance R116, the second diode ZDA1
With third diode ZDA3 and the second capacitor C34；The drain electrode of the other end and third field-effect tube Q2 of 14th resistance R21 connects
It connecing, the cathode of third diode ZDA3 is connect with the grid of third field-effect tube Q2, the plus earth of third diode ZDA3,
The other end of second capacitor C34 is also grounded；
The cathode of second diode ZDA1 is connect with the grid of third field-effect tube Q2, the anode of the second diode ZDA1
It is connect with the source electrode of third field-effect tube Q2；The other end of 15th resistance R116 is connected with the 4th diode D4, the four or two pole
The cathode of pipe D4 is connect with the other end of the 15th resistance R116；The anode of 4th diode D4 be connected with the 5th diode D3 and
The anode of the cathode of third capacitor C37, the 5th diode D3 and the 4th diode D4 connects, the anode of the 5th diode D3 and
The source electrode of third field-effect tube Q2 is connected with the source electrode of the 4th field-effect tube Q3, the other end and timer of third capacitor C37
The OUT terminal of U4 connects；
The end V+ of timer U4 is connected with the 6th diode D5 and the 4th capacitor C49, the cathode of the 6th diode D5 and fixed
When device U4 the connection of the end V+, the anode of the 6th diode D5 is connected with the first triode Q11, the emitter of the first triode Q11
It is connect with the anode of the 6th diode D5, the other end ground connection of the 4th capacitor C49；The base stage of first triode Q11 is connected with
Five capacitor C51 and the 7th diode ZDA4 and the 16th resistance R36；The other end and the first triode of 16th resistance R36
The collector of Q11 is connected and is also connect with the output cathode of power supply adaptor, the cathode of the 7th diode ZDA4 and the one or three pole
The base stage of pipe Q11 connects, and the other end of the plus earth of the 7th diode ZDA4, the 5th capacitor C51 is also grounded；Timer U4
The end RESET connect connection with the cathode of the 6th diode D5；
The end DSC of timer U4 is connected with the 17th resistance R37 and the 18th resistance R39, and the 17th resistance R37's is another
End is connect with the cathode of the 6th diode D5, and the other end of the 18th resistance R39 connects with the end TH of timer U4 and the end TG respectively
It connects, the other end of the 18th resistance R39 is also connected with the 6th capacitor C54, the other end ground connection of the 6th capacitor C54, timer U4
The end CTLV be also grounded；
The end CHRG_OK of charging chip U21 is connected with the second triode QB1B, the base stage of the second triode QB1B with fill
The end CHRG_OK of electrical chip U21 connects, and the collector of the second triode QB1B is connected with the electricity of third transistor QB1A and the 19th
Hinder R53；The other end of 19th resistance R53 and the anode of power supply connect, the base stage of third transistor QB1A and the first triode
The collector of Q11 connects；The emitter of second triode QB1B and the emitter of third transistor QB1A are grounded；Three or three pole
The collector of pipe QB1A is connect with the grid of third field-effect tube Q2 or with the grid of the 4th field-effect tube Q3；
The end LODRV1 of charging chip U21 is connected with the 5th field-effect tube Q9 and the end HIDRV1 is connected with the 6th field-effect tube
Q4；The grid of 6th field-effect tube Q4 is connect with the end HIDRV1 of charging chip U21, the drain electrode and the 4th of the 6th field-effect tube Q4
The drain electrode of field-effect tube Q3 connects, and the source electrode of the 6th field-effect tube Q4 connect and is also connected with the drain electrode of the 5th field-effect tube Q9
The source electrode of inductance L1, the 5th field-effect tube Q9 are grounded；
The end HIDRV2 of charging chip U21 is connected with the 7th field-effect tube Q6 and the end LODRV2 is connected with the 8th field-effect tube
Q8；The source electrode of 7th field-effect tube Q6 connect with the other end of inductance L1 and drains and the VBUS_1 of the 2nd Type-C socket J2
End, the end VBUS_2, the end VBUS_3, the one end therein at the end VBUS_4 or multi-terminal link；The grid of 8th field-effect tube Q8 with fill
The end LODRV2 of electrical chip U21 connects, and the drain electrode of the 8th field-effect tube Q8 is connect with the other end of inductance L1 and source electrode is grounded；
The end BATDRV_N of charging chip U21 is connected with the 9th field-effect tube Q109, the grid of the 9th field-effect tube Q109
Connect with the end BATDRV_N of charging chip U21 and drain respectively with the drain electrode of the 7th field-effect tube Q6 and charging chip U21
The connection of the end VSYS, the source electrode of the 9th field-effect tube Q109 are connect with the source electrode of the first field-effect tube Q9；Circuit is simple, at low cost,
It is small in size.
Specific workflow is as follows:
Battery is connect by Type-C plug with the first Type-C socket J1, and power management chip U6 and the first Type-C
Socket J1 connection is played to guarantee equalizaing charge of battery during charging and overcharges protection and Cross prevention and mistake
Temperature protection；When battery meets normal working condition, (both the temperature of battery is within rated value and the voltage of battery is specified
Voltage range in) afterwards power management chip U6 the end DSG issue positive drive voltage the first field-effect tube Q9 is connected, by
The presence of forward diode inside the second field-effect tube Q8, the electric energy of battery pass sequentially through the second field-effect tube Q8 and first
Field-effect tube Q9 transfers to the 2nd Type-C socket J2, and battery enters pre-discharge-state at this time；
At this point, the end PIO0_14/ADC_2/ACMP_I3 of the first microcontroller U11 monitors the 2nd Type-C socket J2's
The level state of CC2 pin, monitor then be failure to actuate for high level continue keep the first field-effect tube Q9 on state, otherwise then
Cut-off signal, which is issued, by the end PIO0_22/ADC_4 controls the first field-effect tube Q9 cut-off (stopping electricity to power management chip U6
The electric discharge in pond) and simultaneously enter sleep state, into sleep state after battery leakage current be sodium pacify and electric current, to play
The purpose of economize on electricity；It had both been above the preparation process of each circuit before battery discharge；
It is connect by the 2nd Type-C socket J2 with electrical equipment after battery is ready, at this time the 2nd Type-C socket J2
SBU1 pin issue high level signal to the end PIO_4/ADC_11/TRST of the first microcontroller U11 to wake up the first micro-control
Device U11 processed, the end PIO0_22/ADC_4 of the first microcontroller U11 issues Continuity signal and gives power management chip U6 after wake-up
The first field-effect tube Q9 conducting is controlled, is started to power supply for electrical equipment；
The electricity data that the second microcontroller U2 acquires battery management chip U6 at this time passes through on the 2nd Type-C socket J2
The address for reaching the register of operating system agreement, (or is uploaded to electricity and shows so that the electricity for completing operating system end is shown
Unit carries out electricity and shows)；When collected electricity data is lower than rated value, operating system, which receives, passes through power management chip
The low warning reminding of electricity that U6 is sent prompts user to charge, and is inserted into power supply adaptor at this time and starts to charge, and passes through
The output voltage of charging chip U21 detection power supply adaptor in charhing unit 70, charges if in the voltage range in setting
The CHRG_OK of chip U21 issues control signal and opens electric energy input to overvoltage protection and switching circuit 71, makes charhing unit 70
Into state to be charged；
At this point, the second microcontroller U2 by with System Management Bus carry out data protocol shake hands, determine charging current it
After control the second field-effect tube Q8 conducting, start to charge the battery, be ended until battery is filled；Work as load equipment
The end PIO0_14/ADC_2/ACMP_I3 of the first microcontroller U11 is pulled low after disconnecting with the 2nd Type-C socket J2, and first
It is disconnected to the second field-effect tube Q8 of power management chip U6 control that the end PIO0_22/ADC_4 of microcontroller U11 issues cut-off signal
It opens, the first microcontroller U11 is again introduced into sleep state later, hence into ideal circulation energy-saving mode；And charge list
Member 70 is also connect with the 2nd Type-C socket J2, and the 2nd Type-C socket J2 is returned in realization while being charged to battery
Power supply, it is ensured that do not interfere the use of electrical equipment during charging.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of battery management module characterized by comprising
Battery access unit is detachably connected for the mainboard with battery；
Power output unit, for being detachably connected with the electricity display unit of external electrical equipment and outside；
Single-way switch unit is connect with the battery access unit and the power output unit respectively, for controlling the electricity
Pond access unit and the power output unit carry out forward conduction, reverse-conducting or disconnection；
Battery protection and electricity computing unit are used to connect with the battery access unit, carry out overcharge guarantor to the battery
Shield, overheating protection and the state for the electricity of the battery being calculated and being detected the battery；
The battery protection and electricity computing unit detect control after the battery meets normal working condition it is described unidirectional
Switch unit carries out forward conduction, and the electric energy of the battery transfers to the power output unit.
2. battery management module as described in claim 1, which is characterized in that further include:
Power Management Unit, the Power Management Unit respectively with the power output unit and the battery protection and voltameter
Calculate the level state of unit connection, signal pins for detecting the power output unit, the letter of the power output unit
Number pin exports high level, the Power Management Unit issues forward conduction signal to the battery protection and electricity computing unit
The single-way switch unit is controlled to continue to keep forward conduction；
The Power Management Unit detects signal pins the output low level, the power management list of the power output unit
Member issues cut-off signal and turns off to the battery protection and the electricity computing unit control single-way switch unit, Zhi Housuo
It states Power Management Unit and enters sleep state.
3. battery management module as claimed in claim 2, which is characterized in that the electrical equipment and the power output unit
After connection, the multiplexing pins output high level of the power output unit wakes up the Power Management Unit, the power supply pipe
Reason unit issues the forward conduction signal after being waken up described unidirectional to the battery protection and the control of electricity computing unit
Switch unit carries out forward conduction or continues to keep forward conduction, and the battery provides power supply for the electrical equipment.
4. battery management module as described in claim 1, which is characterized in that further include:
Data transfer elements, for connect with the battery protection and electricity computing unit obtain the battery electricity and also
It connect to export the electricity of the battery with the power output unit and be shown to the electricity display unit；
The data transfer elements also connect with System Management Bus and export the electricity of the battery to operating system, the number
The state of the operating system is also obtained from the System Management Bus according to transfer unit, the state of the operating system is to close
Then the data transfer elements issue cut-off signal and control the list to the battery protection and electricity computing unit when machine state
It is turned off to switch unit.
5. battery management module as claimed in claim 4, which is characterized in that threshold values of the electricity of the battery lower than setting
When, the electricity display unit issue charge reminder.
6. battery management module as claimed in claim 4, which is characterized in that further include:
Charhing unit, for being attached and detecting the output voltage of the power supply adaptor, institute with external power supply adaptor
It states charhing unit also to connect with the single-way switch unit for charging to the battery, the charhing unit is also used to control
Make the size of current to charge to the battery；The charhing unit also connect with the power output unit, for
The electrical equipment of the power output unit connection provides power supply；
The charging detection unit detects the output voltage of the power supply adaptor in the voltage range of setting, the charging
Unit controls the data transfer elements and the System Management Bus carries out the electricity for determining and charging to the battery of shaking hands
Size is flowed, and controls the single-way switch unit progress reverse-conducting and charges to the battery.
7. battery management module as claimed in claim 3, which is characterized in that the electrical equipment and the power output unit
After disconnection, the signal pins of the power output unit export low level, the Power Management Unit issues cut-off signal to institute
It states battery protection and electricity computing unit controls the single-way switch unit and turns off, the Power Management Unit enters later
Sleep state.
8. a kind of circuit of battery management module described in -7 any one according to claim 1, which is characterized in that the battery
Access unit is the first Type-C socket, and the power output unit is the 2nd Type-C socket, the 2nd Type-C socket
CC2 pin be the power output unit signal pins, the SBU1 pin of the 2nd Type-C socket is the electric energy
The multiplexing pins of output unit；
The battery protection and electricity computing unit are battery management chip, and the end VCC1 of the power management chip is connected with the
One resistance and the end VCC2 are connected with second resistance, the end VCC3 is connected with 3rd resistor, the end VCC4 is connected with the 4th resistance；
The other end of the first resistor is connect with the end SSRXp1 of the first Type-C socket or with the end SSR Xp2；
The other end of the second resistance is connect with the end Dn1_1 of the first Type-C socket or with the end Dn1_2；
The other end of the 3rd resistor is connect with the end SSTXp2 of the first Type-C socket or with the end SSTXp1；
The end VBUS_1 of the other end of 4th resistance and the first Type-C socket, the end VBUS_2, the end VBUS_3,
The one end therein at the end VBUS_4 or multi-terminal link；
The end SRP of the power management chip is connected with the 5th resistance and the end SRN is connected with the 6th resistance, the 5th resistance
The end GND_1, the end GND_2, the end GND_3, the one end therein at the end GND_4 or the multiterminal of the other end and the first Type-C socket
Connection, the other end of the 5th resistance and the other end of the 6th resistance be grounded, the other end of the 5th resistance with
The other end of 6th resistance is parallel with the 7th resistance；
The end TS1 of the power management chip is connect with the end CC1 of the first Type-C socket or with the end CC2；
The single-way switch unit includes the first field-effect tube and the second field-effect tube, the drain electrode of first field-effect tube and institute
State the drain electrode connection of the second field-effect tube；The grid of first field-effect tube is connected with the 8th resistance and the 9th resistance, described
The other end of 8th resistance is connect with the source electrode of first field-effect tube, the other end and the power supply pipe of the 9th resistance
Manage the end the DSG connection of chip；The grid of second field-effect tube is connected with the tenth resistance and eleventh resistor, the tenth electricity
The other end of resistance is connect with the source electrode of second field-effect tube, the other end of the eleventh resistor and the power management core
The end CHG of piece connects；The source electrode of first field-effect tube is connect with the charhing unit；The source electrode of second field-effect tube
Connect with the end VBUS_1, the end VBUS_2, the end VBUS_3, the one end therein at the end VBUS_4 or the multiterminal of the first Type-C socket
It connects.
9. the circuit of battery management module as claimed in claim 8, which is characterized in that the Power Management Unit is first micro-
Controller；The CC2 pin at the end PIO0_14/ADC_2/ACMP_I3 of first microcontroller and the 2nd Type-C socket
Connection；The end PIO_4/ADC_11/TRST of first microcontroller is connected with twelfth resistor and first diode, and described
The other end of 12 resistance and the anode of power supply connect, the PIO_ of the cathode of the first diode and first microcontroller
The connection of the end 4/ADC_11/TRST, the SBU1 pin of the anode and the 2nd Type-C socket of the first diode；The electricity
The end PRES/SHUTDN of source control chip is connected with thirteenth resistor, the other end of the thirteenth resistor and described first micro-
The end PIO0_22/ADC_4 of controller connects and is also connected with first capacitor, the other end ground connection of the first capacitor；
The data transfer elements are the second microcontroller；The end SMCLK0/WUI55/GPB3 of second microcontroller and institute
State the end the SMBD connection of power management chip, the end SMDAT0/WUI46/GPB4 of second microcontroller and the power supply pipe
Manage the end the SMBC connection of chip；
The end EIO0/LAD0/GPM0 of second microcontroller is connect with the end SSRXp1 of the 2nd Type-C socket,
The end EIO0/LAD0/GPM0 of second microcontroller is connect with the end SSRXn1 of the 2nd Type-C socket,
The end EIO0/LAD0/GPM0 of second microcontroller is connect with the end SSTXn2 of the 2nd Type-C socket,
The end EIO0/LAD0/GPM0 of second microcontroller is connect with the end SSTXp2 of the 2nd Type-C socket,
Second microcontroller is also connect with the System Management Bus.
10. the circuit of battery management module as claimed in claim 9, which is characterized in that the charhing unit includes that over-voltage is protected
Shield and switching circuit and charging chip；
The overvoltage protection and switching circuit include timer and third field-effect tube and the 4th field-effect tube, the third field
The drain electrode of effect pipe is connect with the output cathode of the power supply adaptor, the output negative pole ground connection of the power supply adaptor；It is described
The source electrode of third field-effect tube is connect with the source electrode of the 4th field-effect tube；
The grid of the third field-effect tube is connected with the 14th resistance, the 15th resistance, the second diode and third diode
And second capacitor；The other end of 14th resistance is connect with the drain electrode of the third field-effect tube, the three or two pole
The cathode of pipe is connect with the grid of the third field-effect tube, the plus earth of the third diode, second capacitor
The other end is also grounded；
The cathode of second diode is connect with the grid of the third field-effect tube, the anode of second diode and institute
State the source electrode connection of third field-effect tube；The other end of 15th resistance is connected with the 4th diode, the four or two pole
The cathode of pipe is connect with the other end of the 15th resistance；The anode of 4th diode is connected with the 5th diode and
Three capacitors, the cathode of the 5th diode connects with the anode of the 4th diode, the anode of the 5th diode and
The source electrode of the third field-effect tube connects, the other end of the third capacitor and institute with the source electrode of the 4th field-effect tube
State the OUT terminal connection of timer；
The end V+ of the timer is connected with the 6th diode and the 4th capacitor, the cathode of the 6th diode and the timing
The end V+ of device connects, and the anode of the 6th diode is connected with the first triode, the emitter of first triode and institute
State the anode connection of the 6th diode, the other end ground connection of the 4th capacitor；The base stage of first triode is connected with
Five capacitors and the 7th diode and the 16th resistance；The other end of 16th resistance and the current collection of first triode
Pole connects and also connect with the output cathode of the power supply adaptor, the cathode and first triode of the 7th diode
Base stage connection, the other end of the plus earth of the 7th diode, the 5th capacitor is also grounded；The timer
The end RESET connect connection with the cathode of the 6th diode；
The end DSC of the timer is connected with the 17th resistance and the 18th resistance, the other end of the 17th resistance and institute
The cathode connection of the 6th diode is stated, the other end of the 18th resistance connects with the end TH of the timer and the end TG respectively
It connects, the other end of the 18th resistance is also connected with the 6th capacitor, the other end ground connection of the 6th capacitor, the timer
The end CTLV be also grounded；
The end CHRG_OK of the charging chip is connected with the second triode, the base stage of second triode and the charging core
The end CHRG_OK of piece connects, and the collector of second triode is connected with third transistor and the 19th resistance；Described tenth
The other end of nine resistance is connect with the anode of the power supply, the current collection of the base stage of the third transistor and first triode
Pole connection；The emitter of second triode and the emitter of the third transistor are grounded；The third transistor
Collector is connect with the grid of the third field-effect tube or with the grid of the 4th field-effect tube；
The end LODRV1 of the charging chip is connected with the 5th field-effect tube and the end HIDRV1 is connected with the 6th field-effect tube；It is described
The grid of 6th field-effect tube is connect with the end HIDRV1 of the charging chip, the drain electrode of the 6th field-effect tube and described the
The drain electrode of four field-effect tube connects, and the source electrode of the 6th field-effect tube connect with the drain electrode of the 5th field-effect tube and also connects
It is connected to inductance, the source electrode ground connection of the 5th field-effect tube；
The end HIDRV2 of the charging chip is connected with the 7th field-effect tube and the end LODRV2 is connected with the 8th field-effect tube；It is described
The source electrode of 7th field-effect tube connect with the other end of the inductance and drain with the end VBUS_1 of the 2nd Type-C socket,
The end VBUS_2, the end VBUS_3, the one end therein at the end VBUS_4 or multi-terminal link；The grid of 8th field-effect tube with it is described
The end LODRV2 of charging chip connects, and the drain electrode of the 8th field-effect tube is connect with the other end of the inductance and source electrode connects
Ground；
The end BATDRV_N of the charging chip is connected with the 9th field-effect tube, and the grid of the 9th field-effect tube is filled with described
The end BATDRV_N of electrical chip connect and drain electrode respectively with the drain electrode of the 7th field-effect tube and the VSYS of the charging chip
End connection, the source electrode of the 9th field-effect tube are connect with the source electrode of first field-effect tube.
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| CN201910667254.1A CN110323805B (en) | 2019-07-23 | 2019-07-23 | Battery management module and circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467850A (en) * | 2020-12-09 | 2021-03-09 | 宗汉电通技术(深圳)有限公司 | TYPE-C-based digital lithium ion battery management scheme |
| WO2023169065A1 (en) * | 2022-03-07 | 2023-09-14 | Oppo广东移动通信有限公司 | Charging and discharging protection apparatus for battery pack, battery pack and electronic device |
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| CN112467850B (en) * | 2020-12-09 | 2021-10-29 | 宗汉电通技术(深圳)有限公司 | Digital lithium ion battery management device based on TYPE-C |
| WO2023169065A1 (en) * | 2022-03-07 | 2023-09-14 | Oppo广东移动通信有限公司 | Charging and discharging protection apparatus for battery pack, battery pack and electronic device |
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