CN1870383A - Battery charging control device and its method - Google Patents
Battery charging control device and its method Download PDFInfo
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- CN1870383A CN1870383A CN 200510040172 CN200510040172A CN1870383A CN 1870383 A CN1870383 A CN 1870383A CN 200510040172 CN200510040172 CN 200510040172 CN 200510040172 A CN200510040172 A CN 200510040172A CN 1870383 A CN1870383 A CN 1870383A
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Abstract
This invention relates to a cell charge controller and its method for controlling charge of cells based on the needs of users, in which, the invention is equipped with a first charge control mode controlling charge of cells based on the needs of the cell and a second charge mode for forcing the charge of cells in terms of the needs of users, the operation of the two modes is based on the information of the cell and the second charge control mode controls the charge based on the set signals.
Description
Technical field
The present invention relates to battery charging control device and method thereof.
Background technology
With similar portable terminal computer such as notebook computer, PDA, utilize adapter to receive AC power commonly used, or utilize battery, the necessary power supply that provides is provided.This portable mobile termianl moves and portability because have, so the weight of self, size and battery management are his life.
Above the battery that uses in the said portable terminal be the battery that can carry out recharging, recently, exploitation portable, wireless electronic product constantly increases, and is miniaturization and the lightweight that reaches these products, uses the high secondary cell of energy density just to seem particularly important.In addition, along with people improve constantly the consciousness of environmental protection, to the also increase thereupon of attention degree of environment-friendly products.
On the angle of this attention, lithium rechargeable battery can satisfy top requirement, the energy density height of lithium ion battery, and the operating voltage height, and also the life-span is also long, and also have outstanding hold capacity.Thus, lithium rechargeable battery is widely used in the portable terminal computers such as PC, field camera, portable phone, CD Player, PDA.
Below with reference to Fig. 1 the battery charging control device of conventional art is described.
Battery is array at the internal cell of battery component 13 and constitutes, and the charging device 17 that charges for the battery of said battery component 13 inside upward is connected with battery component 13 with the power input unit 1 of power supply is provided to battery component 13 respectively.Above said charging device 17 comprise: power source conversion that will be by power input unit input is the voltage and current that matches with charge power supply of battery, and the DC/DC switch unit 3 of output; The current detecting unit 11 that the charging current of top said battery component 13 is detected by battery sensor 5; Detect the voltage detection unit 9 of battery component 13 voltages; And charging control unit 7, here battery current and the information of voltage that is provided by top current detecting unit 11 and voltage detection unit 9 is provided said charging control unit, till cell voltage arrives 4.2V/CELL voltage, Control current is charged as certain current values of setting, if said cell voltage 4.2V/CELL above arriving charges the output voltage control of charging device 17 about 4.2V/CELL.Above the charging control characteristic figure of said charging control unit 7 see Fig. 2.
Between said in the above charging device 17 of while and the battery component 13, the connector 15 that also is equipped with charging device 17 to be connected with battery component 13.
Simultaneously, above said battery component 13 same as shown in Figure 3, including provides control unit 25 to top said charging device 17 with battery information.Also comprise battery component 27 that charges the battery and the field-effect transistor of putting the charge switch element 21,23 that battery component 27 charging and discharging paths are provided simultaneously, and fuse.Above the said charge switch element field-effect transistor 21,23 put control by control unit.
The conventional batteries charging control unit identical with above formation is according to the control procedure shown in Figure 4 control of charging.Promptly, require battery 27 chargings in the control unit 25 of battery component 13 inside, and when battery is in non electrical quantity saturation condition (step 500), in the charging device 17, according to charge based on the set charging voltage and the charging current of the performance plot identical (the 510th step) with Fig. 2, the charging operations of step 510, if the voltage and current to battery charge has reached set charging voltage and charging current, in the control unit 25 of battery component 13 inside when being set at electric weight full (FC bit), charging finish (step 520).
Fully charged state according to top step 520 will satisfy following two conditions.
Taper electric current (taper current)＜setting numerical value (about 150mA)
Cell voltage＞setting voltage-taper voltage (about 100mV)
Above said taper electric current, be that battery is discharged fully and when carrying out once more full charge, be under the situation of standard with the full charging current (2.8A) that detects,, compare the current values that weakens gradually of expression according to the battery operating position with standard figures.Thus, above the taper electric current that detects during said battery charge with set numerical value compare diminish gradually till, finish the Current Control of battery charge operation.
Above said taper voltage, be to discharge fully with battery, the full charging voltage that detects during fully charged once more situation is a standard, according to the battery operating position, represents to compare with standard figures, gradually the voltage value of Jian Shaoing.Thus, the cell voltage that detects during the battery charge operation is compared with removing taper voltage numerical value in setting voltage numerical value, when becoming big, finishes the voltage control to the battery charge operation.
On the other hand, in general, for finishing battery charge, the control unit 25 of battery component 13 inside needs the charging requirement operation, that is, even user's notebook computer usually connects adaptive power supply, in the control unit 25 of battery component 13 inside, if the charging requirement operation does not take place, the charging operations of battery component 27 just can not produce.
On the other hand, the side effect of the control unit 25 of battery component 13 inside for not taking place to cause because of frequent charging operations till taking place to any degree of battery (discharge capacity of having set according to product) discharge, all do not require charging.
Because it is very difficult that the characteristic of this battery, battery will be kept frequent fully charged state, in addition,, keep that fully charged state is very difficult completely because the discharge of battery self influence not only keeps being bordering on fully charged state.
Thus, it is very difficult that the battery that uses in the notebook computer in the past will be kept the state of full charging, and thus, the user can run into the situation that cannot use the battery under the fully charged state, this has shortened the service time of battery, causes simultaneously being unsatisfied with on the properties of product.
Summary of the invention
Therefore, the objective of the invention is request, the battery charging control device and the method thereof that provide the may command battery completely to charge according to the user.
To achieve these goals, comprise according to battery charging control device of the present invention:
Battery;
The input adapter power supply, and charge into the charhing unit of power supply to battery;
Input is according to the signal input unit of the battery forced charge signal of customer requirements;
Do not have in the state of charging requirement at battery, control charhing unit, make the embedded controller of battery charge.
Wherein said input pattern signal is the push button signalling of having set.
If wherein said embedded controller then makes battery charge till fully charged state according to the battery charge request signal input of customer requirements.
According to a further aspect in the invention, also provide a kind of battery charging control method, comprising:
When battery sends the charging request, the step of the first charging control of control battery charge;
Supervision is according to the monitoring step of the pressure battery charge requirement of user's request;
In the superincumbent monitoring step, if require to take place according to the battery charge of user's request, the second charging controlled step of control battery charge before battery completely charges and finishes.
The wherein said second charging controlled step also comprises from battery and receives the battery information that it provides, and confirms that battery is in the step of chargeable state.
The present invention can control battery and often charge to fully charged state, for example, when the user utilizes battery supply to use notebook computer when office or family, often need carry notebook computer and go out.In this case, all be battery consumption amount when also not arriving the situation of charging requirement state in the past, because battery does not require charging,, thus, can only carry the battery that is in user mode now so recharging of battery can't be carried out.So the time of battery use just can only shorten outside, also can produce dissatisfied to product.
But, in the present invention, with top same case under, the user controls battery charge by force, so no matter when all can go out after battery is full of, thus, the user can use the battery that often is in the electric weight saturation condition.Above the battery of said electric weight saturation condition increased service time, also improved the satisfaction of product simultaneously.
Description of drawings
Fig. 1 is the formation schematic diagram of the battery charging control device of prior art;
Fig. 2 is the output waveform figure according to the difference of the output voltage of the charging device of prior art and battery unit charging voltage;
Fig. 3 is the detailed formation schematic diagram of battery component;
Fig. 4 is the operational flowchart of existing battery charge control;
Fig. 5 is the formation schematic diagram of the battery charging control device according to the present invention;
Fig. 6 is the operational flowchart of the battery charge control according to the present invention.
Symbol description
100 systems, 200 embedded controllers
300 batteries, 400 adaptor power supplies
450 charging devices, 500 buttons
Embodiment
Below with reference to accompanying drawings battery charging control device of the present invention and operating process thereof are elaborated.
The present invention can divide into, according to the charging requirement of battery, and the first charging control model of control charging; Even from battery, do not take place under the situation of charging requirement, before the battery electric quantity saturation condition, control the second charging control model of charging according to user's requirement.
Above said first charge mode, when with identical in the past, when the charging request takes place in the control device of inside battery, the charging of control battery.At this moment the charging interval of battery, charging voltage, battery charge etc. are that finish on the basis with characteristic pattern shown in Figure 2 all.
Above the said second charging control model, according to user's requirement, do not taking place from battery under the state of charging requirement, according to the charging of user's request control battery.Even in the said in the above second charging control model, the charging voltage of battery, the charging current of battery are that finish on the basis with performance plot shown in Figure 2.At this moment, the charging of battery is finished before full charging.
Fig. 5 is the control formation schematic diagram that is used for battery charge control according to the present invention.
It comprises following equipment the system 100 of notebook computer configuration: to the repertoire of the system configuration in addition totally central processing unit of control, i.e. microprocessor; Undertake between embedded controller and various peripheral equipment that data are passed on and the chipset (system southbridge chipset) of controlled function, and the non-volatility memorizer of storage battery power management routines etc.
Above in the said system in the non-volatility memorizer, can read and write, even under the situation of power cut-off, information also can be preserved.Computer when starting, the necessary program of basic operation and the data of storing many necessary programs and should use at every turn.In the said in the above non-volatility memorizer, a kind of program basic input output system that information like responsible memory, CD, the monitor class between the peripheral equipment transmits, the state that is used for each condition that powder source management mode sets, and the storage that is connected of optimal power supply management mode thus.
Above said non-volatility memorizer also can be called the ROM basic input output system, above said ROM basic input output system storage system basic input output system, above said ROM basic input output system, the operational system controlling computer, for drive system will produce necessary initial stage environment, the guiding operational system.Thus, above said ROM basic input output system, after system wakes up, the process of executive system guiding.
Simultaneously, above said system 100, share the information of various necessity with the embedded controller 200 of the input unit of the keyboard of the various peripheral devices of control notebook computer inside and outside, mouse etc. and power management and battery interface etc.
In the present invention, above the discharging and recharging of said embedded controller 200 control batteries 300, thus, above said embedded controller 200 controls to the charging device 450 of battery 300 control chargings.Above said charging device 450 when battery charge is operated, detect charging current, the numerical value of charging voltage, and the control battery charge is provided to top said embedded controller 200 to battery charge.
Above said embedded controller 200, if from battery 300 input charging requirement operation signals, the control battery charge is if import the charging requirement operation signal from the user, even without the charging requirement operation of battery, before finishing, battery charge controls charging process.
The charging requirement operation signal that sends from the user is finished according to the input signal of the button of having set 500 above.Thus, above said embedded controller 200 monitor the charging requirement operation of sending from battery 300, in addition, whether also should periodically monitor button.Above said button 500 be in constituting the button of keyboard, it is desirable to set according to the mediation of two above keys.Simultaneously, the definition of said embedded controller understanding button above.
In addition, above said embedded controller 200 monitor whether import at notebook built-in adapter power supply (AC power), according to system 100 and data communication, share and be used for battery-operated information and other various information.Above the input of said adaptor power supplies 400 monitor it is to detect by charging device 450 according to adaptor power supplies 400 whether to provide to battery 300, finish thus.Promptly, above said charging device 450 its formations comprised current sensing means shown in Figure 1 and voltage check device, and being used for the switching device etc. that power supply is supplied with switch, the electric current and the voltage that detect by top said current sensing means and voltage check device provide to embedded controller 200.Above said embedded controller 200 can detect battery current and voltage, in addition and can confirm that whether adaptor power supplies import.Simultaneously, embedded controller on-off switch device provides the charging circuit of battery.
Simultaneously, the present invention also comprises the battery 300 of exporting battery status information.Above said battery 300 same as shown in Figure 3, its formation comprises the control device of control charge and discharge switch element and charge and discharge switch element.According to the request of control device, battery is charged.Above said battery status information comprise the various control information relevant such as battery electric quantity, temperature with battery.
Below, the operation according to the battery charging control device of the present invention that constitutes above is described in detail.
Fig. 6 is the operational flowchart for control battery charge of the present invention.
Adaptor power supplies 400 with state that system is connected in (step 202), monitor whether import charging requirement signal (step 203) from battery 300
Above in said the 203rd step, when when battery 300 sends charging requirement, embedded controller 200 by with the identical process of charge control method in the past, by the charging of charging device 450 control batteries 300.(step 212)
But in the superincumbent step 203, when battery 300 did not have charging requirement, embedded controller 200 was confirmed the possible state of charging of batteries.(step 206)
Above said step 206, in embedded controller 200, receive the battery information that battery 300 sends, judge whether battery is in the state of Full Charge Capacity.Simultaneously, from battery information, judge present condition, judge whether battery charge is in shape according to state of temperature now etc.
In the above in the said step 206, under the possible state of battery charge, embedded controller 200 through certain cycle repeatedly monitoring user whether imported the button 500 (step 209) that requires direct battery charge, the button of selecting in the top step 209 is that the state of customer requirements battery 300 is in the signal input that the Full Charge Capacity charging is finished.
Above in the said step 209, user's selection key 500, embedded controller 200 can be sensed this operation, embedded controller 200 control charging devices 450, the charging (step 215) of control battery 300.
Above said step 215, same as shown in Figure 3, be equipped with at inside battery, and induced cell information, providing the control device of battery information to the outside is not to send the state that battery charge requires.Above said step 215, be process according to user's requirement control battery charge.
Above the battery charge of said step 215 when finishing, embedded controller 200 reads battery information (step 218) from battery 300, this moment, battery information was same as shown in Figure 3, received the battery record that is sent by the control device in the inside battery configuration.Above said battery record be meant the information that records the battery fully charged state.Thus, as confirm top said battery recorded information, just can confirm that present battery is that to be in fully charged state also be non-fully charged state.
Above the affirmation operation of said the 218th process, when battery was in fully charged state, the charging of battery was interrupted, under the situation that the adaptor power supplies 400 of internal system input disconnects, the charging of battery is also interrupted in addition.(step 224, step 227)
But, affirmation operation by top step 218, though battery is not to be in fully charged state, but because when also just interrupting the situation of charging with the corresponding external condition battery of temperature, embedded controller 200 control charging devices 450, interrupt the charging of battery 300, when external condition changes battery into and can charge till.Simultaneously, in the superincumbent process, the record of regular inspection battery is if the state of battery for charging so just controlled the charging of battery once more.(step 221, step 230)
Identical with the above, its formation of the present invention comprises: when battery sends charging requirement, and the first charging control model of control battery charge; Control the battery-operated second charging control model forcibly according to the user.Above the said first charging control model and second charging control model when operation, according to battery information control charging until fully charged state.Simultaneously, the said second charging control model is controlled according to the signal input of having set above.
By top description, those skilled in the art can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to interest field.
Claims (5)
1, a kind of battery charging control device comprises:
Battery;
The input adapter power supply, and charge into the charhing unit of power supply to battery;
Input is according to the signal input unit of the battery forced charge signal of customer requirements;
Do not have the state of charging requirement from battery, control charhing unit, make the embedded controller of battery charge.
2, battery charging control device as claimed in claim 1 is characterized in that, said battery forced charge signal is the push button signalling of having set.
3, battery charging control device as claimed in claim 1 or 2 is characterized in that, if said embedded controller then makes battery charge till fully charged state according to the battery charge request signal input of customer requirements.
4, a kind of battery charging control method comprises:
When battery sends the charging request, the step of the first charging control of control battery charge;
Supervision is according to the monitoring step of the pressure battery charge requirement of user's request;
In the superincumbent monitoring step, if require to take place according to the battery charge of user's request, the second charging controlled step of control battery charge before battery completely charges and finishes.
As claim item 4 described battery charging control methods, it is characterized in that 5, the said second charging controlled step also comprises from battery and receives the battery information that it provides, and confirms that battery is in the step of chargeable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100401722A CN100377468C (en) | 2005-05-24 | 2005-05-24 | Battery charging control device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100401722A CN100377468C (en) | 2005-05-24 | 2005-05-24 | Battery charging control device and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1870383A true CN1870383A (en) | 2006-11-29 |
| CN100377468C CN100377468C (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100401722A Expired - Fee Related CN100377468C (en) | 2005-05-24 | 2005-05-24 | Battery charging control device and its method |
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| CN (1) | CN100377468C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304176B (en) * | 2007-05-09 | 2013-06-05 | 仁宝电脑工业股份有限公司 | Power supply control system and method |
| CN111479734A (en) * | 2017-12-15 | 2020-07-31 | 日产自动车株式会社 | Control method and control device for hybrid vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538074A (en) * | 1983-08-24 | 1985-08-27 | Healthcheck Corporation | Power switch |
| JP3894175B2 (en) * | 2003-08-26 | 2007-03-14 | 松下電工株式会社 | Charger |
| CN100336280C (en) * | 2004-09-13 | 2007-09-05 | 上海北大方正科技电脑***有限公司 | Protector for battery charge-discharge control circuit of note-book computer |
-
2005
- 2005-05-24 CN CNB2005100401722A patent/CN100377468C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304176B (en) * | 2007-05-09 | 2013-06-05 | 仁宝电脑工业股份有限公司 | Power supply control system and method |
| CN111479734A (en) * | 2017-12-15 | 2020-07-31 | 日产自动车株式会社 | Control method and control device for hybrid vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100377468C (en) | 2008-03-26 |
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Granted publication date: 20080326 Termination date: 20110524 |