CN107154670A - A kind of double lithium battery control systems based on EC controllers - Google Patents
A kind of double lithium battery control systems based on EC controllers Download PDFInfo
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- CN107154670A CN107154670A CN201710432530.7A CN201710432530A CN107154670A CN 107154670 A CN107154670 A CN 107154670A CN 201710432530 A CN201710432530 A CN 201710432530A CN 107154670 A CN107154670 A CN 107154670A
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- battery
- lithium battery
- power supply
- charging
- controllers
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/36—Arrangements using end-cell switching
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of double lithium battery control systems based on EC controllers, is related to portable-computer power field；Including the SMBus communication modules being integrated on EC firmwares, battery information parsing module, charging chip control module, power switching control module and discharge and recharge policy decision module, SMBus communication modules are responsible for providing SMBus communication interfaces to other modules, for battery information collection and charging chip control, the interface that battery information parsing module is provided by SMBus communication modules, read and parsing lithium battery information, the interface that charging chip control module is provided by SMBus communication modules, realize the setting of charging unlatching/disabling and charging voltage/electric current, power switching control module is responsible for control selections system power supply, discharge and recharge policy decision module is responsible for according to battery information and adapter situation in place, the charge-discharge electric power of decision system power supply and double lithium batteries.
Description
Technical field
The present invention discloses a kind of pair of lithium battery control system, is related to portable-computer power field, specifically one
Plant double lithium battery control systems based on EC controllers.
Background technology
EC（Embeded Controller, embedded controller）It is a kind of embedded microcontroller, it is commonly used at present
In possessing intelligent electricity saving function notebook computer design, portability, intelligent and personalization in notebook computer are set
Played an important role in meter, the control of notebook built-in keybad, touch pad control, monitoring temperature and Notebook Battery can be achieved
The functions such as intelligent recharge and discharge management.
Intelligent lithium battery control system is based on Intelligent lithium battery specification（Smart Battery Specification）It is real
It is existing, it is mainly used in portable electric appts, such as notebook computer, mobile phone and digital camera.Whole system is by intelligently leading
Machine（Smart Host）, intelligent battery（Smart Battery）And aptitude chargeable circuit（Smart Charger）Composition, each portion
Communicated between point by SMBus buses.But current Intelligent lithium battery control system is often designed for monocell, and army
The particular applications such as thing commander, the endurance to portable computer has higher requirements, and single battery is difficult to meet system
Demand.The present invention provides a kind of double lithium battery control systems based on EC controllers, is designed, can adapt to for double cell
The particular applications such as military commanding, improve the endurance of portable computer.
The content of the invention
There is provided a kind of double lithium batteries control based on EC controllers with problem in view of the shortcomings of the prior art by the present invention
System,
Concrete scheme proposed by the present invention is：
A kind of double lithium battery control systems based on EC controllers, including be integrated on EC firmwares SMBus communication modules, battery
Information analysis module, charging chip control module, power switching control module and discharge and recharge policy decision module,
SMBus communication modules are responsible for providing SMBus communication interfaces to other modules, for battery information collection and charging chip control
System,
The interface that battery information parsing module is provided by SMBus communication modules, reads and parsing lithium battery information,
The interface that charging chip control module is provided by SMBus communication modules, realization charging unlatching/disabling and charging voltage/
The setting of electric current,
Power switching control module is responsible for control selections system power supply,
Discharge and recharge policy decision module is responsible for according to battery information and adapter situation in place, decision system power supply and double
The charge-discharge electric power of lithium battery.
The discharge and recharge policy decision module is first carried out power supply and powered decision-making, determines to be adapted to according to adapter situation in place
Device is powered or lithium battery power supply, and adapter is in place, then adapter is to system power supply, and otherwise lithium battery is to system power supply.
The discharge and recharge policy decision module then performs battery charging and discharging control strategy, is powered the holding of decision-making according to power supply
Row result carries out discharge and recharge Time-sharing control to two pieces of lithium batteries.
The discharge and recharge policy decision module uses MS master-slave battery strategy, and one of lithium battery is another as main battery
Block lithium battery is as from battery, and the preferential electric energy using in main battery when lithium battery is to system power supply treats that main battery electricity is low
Switch to and powered from battery when given threshold value；It is preferably main battery charging during charging, again to from battery after main battery is full of
Charging.
The hardware circuit of the system includes EC controllers, charging chip 1, lithium battery 1, charging chip 2, the and of lithium battery 2
Power supply selection circuit,
EC controllers are system master chip, are responsible for lithium battery information gathering, charging and discharging lithium battery control, system power supply selection and
Control；
Charging chip 1 and charging chip 2 are responsible for charging to lithium battery according to the instruction of EC controllers；
Lithium battery 1 and lithium battery 2 are system reserve power supply, and electric energy is provided to system when adapter is not in place；
Selection circuit of powering is controlled by the GPIO pin of EC controllers, is responsible for the selection of system power supply.
The power supply selection circuit is built by multiple MOSFET, and adding protection diode prevents electric current from pouring in down a chimney.
A kind of double lithium battery control systems based on EC controllers, the hardware circuit of the system includes EC controllers, filled
Electrical chip 1, lithium battery 1, charging chip 2, lithium battery 2 and power supply selection circuit,
EC controllers are system master chip, are responsible for lithium battery information gathering, charging and discharging lithium battery control, system power supply selection and
Control；
Charging chip 1 and charging chip 2 are responsible for charging to lithium battery according to the instruction of EC controllers；
Lithium battery 1 and lithium battery 2 are system reserve power supply, and electric energy is provided to system when adapter is not in place；
Selection circuit of powering is controlled by the GPIO pin of EC controllers, is responsible for the selection of system power supply.
A kind of double lithium battery control methods based on EC controllers, are existed using EC controllers according to battery information and adapter
Position situation, decision system power supply selects system power supply, when lithium battery power supply, reads and solve by SMBus communication interfaces
Lithium battery information is analysed, the setting of charging unlatching/disabling and charging voltage/electric current is realized using charging chip, and control double lithium electricity
The charge-discharge electric power in pond.
Described method determines that adapter is powered or lithium battery power supply according to adapter situation in place, and adapter is in place, then
Adapter is to system power supply, and otherwise lithium battery is to system power supply.
Described method, using MS master-slave battery strategy, one of lithium battery is as main battery, and another piece of lithium battery is made
For from battery, the preferential electric energy using in main battery when lithium battery is to system power supply treats that main battery electricity is less than given threshold value
When switch to and powered from battery；It is preferably main battery charging during charging, is charged again to from battery after main battery is full of.
Usefulness of the present invention is：
The present invention provides a kind of double lithium battery control systems based on EC controllers, including the SMBus being integrated on EC firmwares leads to
Believe module, battery information parsing module, charging chip control module, power switching control module and discharge and recharge strategic decision-making mould
Block, present system each integrated system module on EC firmwares, design is simple, it is easy to accomplish, controlled by EC controllers double
The selection of lithium battery and adapter not only improves defencive function during system cut-off, additionally it is possible to adapt to military affairs and refer to system power supply
The particular application such as wave, improve the endurance of portable computer, and double lithium batteries can use Redundancy Design, more protect
The reliability that data are preserved when having demonstrate,proved system cut-off.
Brief description of the drawings
Fig. 1 present system hardware circuit diagrams；
Fig. 2 present system EC firmware upper module block diagrams；
Fig. 3 present system charge mode conversion process schematic diagrames.
Embodiment
The present invention provides a kind of double lithium battery control systems based on EC controllers, including is integrated on EC firmwares
SMBus communication modules, battery information parsing module, charging chip control module, power switching control module and discharge and recharge strategy
Decision-making module,
SMBus communication modules are responsible for providing SMBus communication interfaces to other modules, for battery information collection and charging chip control
System,
The interface that battery information parsing module is provided by SMBus communication modules, reads and parsing lithium battery information,
The interface that charging chip control module is provided by SMBus communication modules, realization charging unlatching/disabling and charging voltage/
The setting of electric current,
Power switching control module is responsible for control selections system power supply,
Discharge and recharge policy decision module is responsible for according to battery information and adapter situation in place, decision system power supply and double
The charge-discharge electric power of lithium battery.
There is provided the hardware circuit of system simultaneously includes EC controllers, charging chip 1, lithium battery 1, charging chip 2, lithium battery
2 and power supply selection circuit,
EC controllers are system master chip, are responsible for lithium battery information gathering, charging and discharging lithium battery control, system power supply selection and
Control；
Charging chip 1 and charging chip 2 are responsible for charging to lithium battery according to the instruction of EC controllers；
Lithium battery 1 and lithium battery 2 are system reserve power supply, and electric energy is provided to system when adapter is not in place；
Selection circuit of powering is controlled by the GPIO pin of EC controllers, is responsible for the selection of system power supply.
Simultaneously a kind of double lithium battery control methods based on EC controllers are provided, using EC controllers according to battery information with
Adapter situation in place, decision system power supply selects system power supply, when lithium battery power supply, passes through SMBus communication interfaces
Read and parsing lithium battery information, the setting of charging unlatching/disabling and charging voltage/electric current is realized using charging chip, and control
The charge-discharge electric power of the double lithium batteries of system.
With reference to accompanying drawing and specific implementation, the present invention will be further described.
Build system hardware circuit and use IT8528 chips including EC controllers, with SMBus EBIs, be easy to and lithium
Battery/charging chip communication；
Charging chip 1 and charging chip 2 using supporting the BQ24735 chips of smart battery specification to realize, by SMBus buses with
IT8528 communicates；And by ACOK pin indication adapters situation in place, current input current is indicated by IOUT pins；
Lithium battery 1 and lithium battery 2 are 3 string batteries, are communicated by SMBus buses with IT8528, and drawn by BAT_Pressent
Toe shows battery access state；
Power supply selection circuit is built by multiple MOSFET, and adding protection diode prevents electric current from pouring in down a chimney.
Above-mentioned hardware circuit is integrated on EC firmwares, using corresponding software program, modular system of the present invention is constituted,
SMBus communication modules, battery information parsing module, charging chip control module, power switching control module and discharge and recharge strategy
Decision-making module,
Wherein discharge and recharge policy decision module is according to battery information and adapter situation in place, decision system power supply, power supply
Switching control module selects system power supply,
When lithium battery power supply, the SMBus communication interfaces that battery information parsing module is provided by SMBus communication modules read and
Parse lithium battery information, charging chip control module using charging chip realize battery charging unlatching/disabling and charging voltage/
The setting of electric current, while the charge-discharge electric power of the double lithium batteries of discharge and recharge policy decision module control.
When said process is implemented, wherein discharge and recharge policy decision module can be first carried out power supply and power decision-making, according to suitable
Orchestration situation in place determines that adapter is powered or battery is powered, if adapter is powered, is filled when 1 underfill of lithium battery to battery 1
Electricity, otherwise charges to battery 2, and the data setting charging current/voltage provided according to battery information parsing module；If not adaptation
Whether as little as device is powered, then judge the electricity of battery 1 given threshold value, is selected battery 1 to power when not as little as given threshold value, is otherwise selected
Battery 2 is selected to power；Then perform battery charging and discharging control, according to power supply power decision-making implementing result respectively to two pieces of lithium batteries
Charge and discharge control is carried out, to accelerate software execution speed, to double cell using Time-sharing control principle, i.e. one cycle only to one piece
Battery is controlled, and is controlled with reference to battery charging and discharging in Fig. 3, it is ensured that one cycle is only controlled to one piece of battery.
, also can be further when above-mentioned discharge and recharge policy decision module execution power supply powers decision-making and battery charging and discharging control
Using MS master-slave battery strategy, one of lithium battery is as main battery, and another piece of lithium battery is as from battery, such as according to above-mentioned
During it is described, i.e. battery 1 is main battery, battery 2 be from battery, it is preferential using in battery 1 when lithium battery is to system power supply
Electric energy, switch to battery 2 when the electricity of battery 1 is less than given threshold value and power；It is preferably that battery 1 charges during charging, treats battery 1
Charged again to battery 2 after being full of.
Present system and method are utilized in above-mentioned specific implementation, defencive function during system cut-off is not only improved, moreover it is possible to
The particular applications such as military commanding are enough adapted to, the endurance of portable computer is improved, and double lithium batteries can use superfluous
Remaining design, the reliability that data are preserved when more ensure that system cut-off.
Claims (10)
1. a kind of double lithium battery control systems based on EC controllers, it is characterized in that leading to including the SMBus being integrated on EC firmwares
Believe module, battery information parsing module, charging chip control module, power switching control module and discharge and recharge strategic decision-making mould
Block,
SMBus communication modules are responsible for providing SMBus communication interfaces to other modules, for battery information collection and charging chip control
System,
The interface that battery information parsing module is provided by SMBus communication modules, reads and parsing lithium battery information,
The interface that charging chip control module is provided by SMBus communication modules, realization charging unlatching/disabling and charging voltage/
The setting of electric current,
Power switching control module is responsible for control selections system power supply,
Discharge and recharge policy decision module is responsible for according to battery information and adapter situation in place, decision system power supply and double
The charge-discharge electric power of lithium battery.
2. system according to claim 1, it is characterized in that the discharge and recharge policy decision module is first carried out power supply and powered
Decision-making, determines that adapter is powered or lithium battery power supply, adapter is in place, then adapter is supplied to system according to adapter situation in place
Electricity, otherwise lithium battery is to system power supply.
3. system according to claim 2, it is characterized in that the discharge and recharge policy decision module then performs battery charge and discharge
Two pieces of lithium batteries are carried out discharge and recharge Time-sharing controls by electric control strategy according to the power implementing result of decision-making of power supply.
4. the system according to claim 1-3, it is characterized in that the discharge and recharge policy decision module uses MS master-slave battery plan
Slightly, one of lithium battery is as main battery, and another piece of lithium battery preferentially makes as from battery when lithium battery is to system power supply
With the electric energy in main battery, switch to and powered from battery when main battery electricity is less than given threshold value；During charging it is preferential based on electricity
Pond is charged, and is charged again to from battery after main battery is full of.
5. system according to claim 1, it is characterized in that the hardware circuit of the system includes EC controllers, charging chip
1st, lithium battery 1, charging chip 2, lithium battery 2 and power supply selection circuit,
EC controllers are system master chip, are responsible for lithium battery information gathering, charging and discharging lithium battery control, system power supply selection and
Control；
Charging chip 1 and charging chip 2 are responsible for charging to lithium battery according to the instruction of EC controllers；
Lithium battery 1 and lithium battery 2 are system reserve power supply, and electric energy is provided to system when adapter is not in place；
Selection circuit of powering is controlled by the GPIO pin of EC controllers, is responsible for the selection of system power supply.
6. system according to claim 5, it is characterized in that the power supply selection circuit is built by multiple MOSFET, adds and protects
Shield diode prevents electric current from pouring in down a chimney.
7. a kind of double lithium battery control systems based on EC controllers, it is characterized in that the hardware circuit of the system is controlled including EC
Device, charging chip 1, lithium battery 1, charging chip 2, lithium battery 2 and power supply selection circuit,
EC controllers are system master chip, are responsible for lithium battery information gathering, charging and discharging lithium battery control, system power supply selection and
Control；
Charging chip 1 and charging chip 2 are responsible for charging to lithium battery according to the instruction of EC controllers,
Lithium battery 1 and lithium battery 2 are system reserve power supply, and electric energy is provided to system when adapter is not in place；
Selection circuit of powering is controlled by the GPIO pin of EC controllers, is responsible for the selection of system power supply.
8. a kind of double lithium battery control methods based on EC controllers, it is characterized in that using EC controllers are according to battery information and fit
Orchestration situation in place, decision system power supply selects system power supply, when lithium battery power supply, read by SMBus communication interfaces
Lithium battery information is taken and parsed, the setting of charging unlatching/disabling and charging voltage/electric current is realized using charging chip, and is controlled
The charge-discharge electric power of double lithium batteries.
9. method according to claim 8, it is characterized in that determining that adapter is powered or lithium electricity according to adapter situation in place
Pond powers, and adapter is in place, then adapter is to system power supply, and otherwise lithium battery is to system power supply.
10. method according to claim 8 or claim 9, it is characterized in that using MS master-slave battery strategy, one of lithium battery is made
For main battery, another piece of lithium battery is as from battery, and the preferential electric energy using in main battery when lithium battery is to system power supply is treated
Main battery electricity is switched to when being less than given threshold value and powered from battery；It is preferably main battery charging during charging, treats that main battery is full of
Charged again to from battery afterwards.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707016A (en) * | 2017-09-29 | 2018-02-16 | 深圳市亿道信息股份有限公司 | A kind of plug type Designing of Reinforced Computer based on double-battery charge discharge control system |
| CN108828452A (en) * | 2018-07-02 | 2018-11-16 | 山东超越数控电子股份有限公司 | A kind of method that lithium battery information is shown |
| CN112438733A (en) * | 2020-11-06 | 2021-03-05 | 南京大学 | Portable neonatal convulsion electroencephalogram monitoring system |
| CN112925734A (en) * | 2021-03-15 | 2021-06-08 | 西安超越申泰信息科技有限公司 | Portable computer mainboard based on Shenwei 421 treater |
| CN113328496A (en) * | 2021-06-20 | 2021-08-31 | 三河科达实业有限公司 | Portable universal life support system double-battery switching structure adapting to field environment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709990A (en) * | 2012-07-06 | 2012-10-03 | 天津市英贝特航天科技有限公司 | Double-lithium-battery charging and discharging management circuit |
| US20150253830A1 (en) * | 2014-03-10 | 2015-09-10 | Dell Products L.P. | Method for Adapter Over-Current-Protection (OCP) Protection and User Warning |
| CN105356544A (en) * | 2015-11-27 | 2016-02-24 | 山东超越数控电子有限公司 | Portable notebook battery stand charger device based on EC |
| CN107193359A (en) * | 2017-04-01 | 2017-09-22 | 山东超越数控电子有限公司 | A kind of notebook battery management device and method based on Shen prestige processor |
-
2017
- 2017-06-09 CN CN201710432530.7A patent/CN107154670A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709990A (en) * | 2012-07-06 | 2012-10-03 | 天津市英贝特航天科技有限公司 | Double-lithium-battery charging and discharging management circuit |
| US20150253830A1 (en) * | 2014-03-10 | 2015-09-10 | Dell Products L.P. | Method for Adapter Over-Current-Protection (OCP) Protection and User Warning |
| CN105356544A (en) * | 2015-11-27 | 2016-02-24 | 山东超越数控电子有限公司 | Portable notebook battery stand charger device based on EC |
| CN107193359A (en) * | 2017-04-01 | 2017-09-22 | 山东超越数控电子有限公司 | A kind of notebook battery management device and method based on Shen prestige processor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707016A (en) * | 2017-09-29 | 2018-02-16 | 深圳市亿道信息股份有限公司 | A kind of plug type Designing of Reinforced Computer based on double-battery charge discharge control system |
| CN107707016B (en) * | 2017-09-29 | 2023-12-15 | 深圳市亿道信息股份有限公司 | Pluggable reinforced computer based on double-battery charge-discharge control system |
| CN108828452A (en) * | 2018-07-02 | 2018-11-16 | 山东超越数控电子股份有限公司 | A kind of method that lithium battery information is shown |
| CN112438733A (en) * | 2020-11-06 | 2021-03-05 | 南京大学 | Portable neonatal convulsion electroencephalogram monitoring system |
| CN112925734A (en) * | 2021-03-15 | 2021-06-08 | 西安超越申泰信息科技有限公司 | Portable computer mainboard based on Shenwei 421 treater |
| CN113328496A (en) * | 2021-06-20 | 2021-08-31 | 三河科达实业有限公司 | Portable universal life support system double-battery switching structure adapting to field environment |
| CN113328496B (en) * | 2021-06-20 | 2022-01-18 | 三河科达实业有限公司 | Portable universal life support system double-battery switching structure adapting to field environment |
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Application publication date: 20170912 |